Attachment 585002 Details for Bug 691010 – environment

environment

environment (text/plain), 152.36 KB, created by Toralf Förster on 2019-07-29 17:49:09 UTC

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Creator: Toralf Förster

Created: 2019-07-29 17:49:09 UTC

Size: 152.36 KB

patch

obsolete

>declare -x ABI="amd64"
>declare -x ABI_MIPS=""
>declare -x ABI_PPC=""
>declare -x ABI_RISCV=""
>declare -x ABI_S390=""
>declare -x ABI_X86="64"
>declare -x ALSA_CARDS=""
>declare -x APACHE2_MODULES=""
>declare -x APACHE2_MPMS=""
>declare -x ARCH="amd64"
>declare BDEPEND="sys-devel/make >=dev-util/cmake-3.9.6"
>declare -x BOOTSTRAP_USE="unicode internal-glib pkg-config split-usr python_targets_python3_6 python_targets_python2_7 multilib"
>declare -x CALLIGRA_FEATURES=""
>declare -x CAMERAS=""
>declare -- CATKIN_MESSAGES_CXX_USEDEP="ros_messages_cxx(-)"
>declare -- CATKIN_MESSAGES_EUS_USEDEP="ros_messages_eus(-)"
>declare -- CATKIN_MESSAGES_LISP_USEDEP="ros_messages_lisp(-)"
>declare -- CATKIN_MESSAGES_NODEJS_USEDEP="ros_messages_nodejs(-)"
>declare -- CATKIN_MESSAGES_PYTHON_USEDEP="ros_messages_python(-),python_targets_python2_7(-)?,-python_single_target_python2_7(-)"
>declare -x CATKIN_PREFIX_PATH="/usr"
>declare -x CBUILD="x86_64-pc-linux-gnu"
>declare -x CFLAGS="-O2 -pipe -march=native"
>declare -x CFLAGS_amd64="-m64"
>declare -x CFLAGS_default
>declare -x CFLAGS_x32="-mx32"
>declare -x CFLAGS_x86="-m32"
>declare -x CHOST="x86_64-pc-linux-gnu"
>declare -x CHOST_amd64="x86_64-pc-linux-gnu"
>declare -x CHOST_default="x86_64-pc-linux-gnu"
>declare -x CHOST_x32="x86_64-pc-linux-gnux32"
>declare -x CHOST_x86="i686-pc-linux-gnu"
>declare -- CMAKE_BINARY="cmake"
>declare -- CMAKE_BUILD_TYPE="Gentoo"
>declare -- CMAKE_MAKEFILE_GENERATOR="emake"
>declare -- CMAKE_MIN_VERSION="3.9.6"
>declare -- CMAKE_REMOVE_MODULES="yes"
>declare -- CMAKE_REMOVE_MODULES_LIST="FindBLAS FindLAPACK"
>declare -- CMAKE_VERBOSE="ON"
>declare -- CMAKE_WARN_UNUSED_CLI="no"
>declare -x COLLECTD_PLUGINS=""
>declare -x COMMON_FLAGS="-O2 -pipe -march=native"
>declare -x CPU_FLAGS_ARM=""
>declare -x CPU_FLAGS_X86=""
>declare -x CTARGET_default="x86_64-pc-linux-gnu"
>declare -x CURL_SSL=""
>declare -x CXXFLAGS="-O2 -pipe -march=native -std=c++11"
>declare -x DEFAULT_ABI="amd64"
>declare -x DEFINED_PHASES=" compile configure install prepare test"
>declare DEPEND="
>	dev-ros/sensor_msgs[ros_messages_cxx(-),ros_messages_python(-),python_targets_python2_7(-)?,-python_single_target_python2_7(-)]
>	dev-libs/boost:=[python,python_targets_python2_7(-)?,-python_single_target_python2_7(-)]
>	dev-ros/rosconsole
>	>=dev-cpp/yaml-cpp-0.5:=
>	dev-ros/roscpp
>	dev-ros/roscpp_serialization
>
>	virtual/pkgconfig
>	test? ( dev-python/nose )
>  sys-devel/make >=dev-util/cmake-3.9.6 python_targets_python2_7? ( >=dev-lang/python-2.7.5-r2:2.7 ) >=dev-lang/python-exec-2:=[python_targets_python2_7(-)?,-python_single_target_python2_7(-)]
>	dev-util/catkin[python_targets_python2_7(-)?,-python_single_target_python2_7(-)]
>	dev-python/empy[python_targets_python2_7(-)?,-python_single_target_python2_7(-)]
>"
>declare DESCRIPTION="Routines for reading and writing camera calibration parameters"
>declare -- DESKTOP_DATABASE_DIR="/usr/share/applications"
>declare -x DESTTREE="/usr"
>declare -x DIROPTIONS="-m0755"
>declare -x EAPI="5"
>declare -- EGIT_REPO_URI="https://github.com/ros-perception/image_common"
>declare -x EGO_BUILD_FLAGS="-p 1"
>declare -x ELIBC="glibc"
>declare -x ENLIGHTENMENT_MODULES=""
>declare -x ENV_UNSET="DBUS_SESSION_BUS_ADDRESS DISPLAY GOBIN PERL5LIB PERL5OPT PERLPREFIX PERL_CORE PERL_MB_OPT PERL_MM_OPT XAUTHORITY XDG_CACHE_HOME XDG_CONFIG_HOME XDG_DATA_HOME XDG_RUNTIME_DIR"
>declare -- EPATCH_COMMON_OPTS="-g0 -E --no-backup-if-mismatch"
>declare -- EPATCH_EXCLUDE=""
>declare -- EPATCH_FORCE="no"
>declare -- EPATCH_MULTI_MSG="Applying various patches (bugfixes/updates) ..."
>declare -- EPATCH_N_APPLIED_PATCHES="1"
>declare -- EPATCH_OPTS=""
>declare -- EPATCH_SINGLE_MSG=""
>declare -- EPATCH_SOURCE="/var/tmp/portage/dev-ros/camera_calibration_parsers-1.11.13-r1/work/patch"
>declare -- EPATCH_SUFFIX="patch.bz2"
>declare -- EPATCH_USER_SOURCE="/etc/portage/patches"
>declare -- EPOCHREALTIME="1564367842.070089"
>declare -- EPOCHSECONDS="1564367842"
>declare -x EXEOPTIONS="-m0755"
>declare -x FCFLAGS="-O2 -pipe -march=native"
>declare -x FETCHCOMMAND_SSH="bash -c \"x=\\\${2#ssh://} ; host=\\\${x%%/*} ; port=\\\${host##*:} ; host=\\\${host%:*} ; [[ \\\${host} = \\\${port} ]] && port= ; exec rsync --rsh=\\\"ssh \\\${port:+-p\\\${port}} \\\${3}\\\" -avP \\\"\\\${host}:/\\\${x#*/}\\\" \\\"\\\$1\\\"\" rsync \"\${DISTDIR}/\${FILE}\" \"\${URI}\" \"\${PORTAGE_SSH_OPTS}\""
>declare -x FFLAGS="-O2 -pipe -march=native"
>declare -x FFTOOLS=""
>declare -x FLTK_DOCDIR="/usr/share/doc/fltk-1.3.5-r2/html"
>declare -x G4ABLADATA="/usr/share/Geant4-10.5.1/data/G4ABLA3.1"
>declare -x G4ENSDFSTATEDATA="/usr/share/Geant4-10.5.1/data/G4ENSDFSTATE2.2"
>declare -x G4INCLDATA="/usr/share/Geant4-10.5.1/data/G4INCL1.0"
>declare -x G4LEDATA="/usr/share/Geant4-10.5.1/data/G4EMLOW7.7"
>declare -x G4LEVELGAMMADATA="/usr/share/Geant4-10.5.1/data/PhotonEvaporation5.3"
>declare -x G4NEUTRONHPDATA="/usr/share/Geant4-10.5.1/data/G4NDL4.5"
>declare -x G4PARTICLEXSDATA="/usr/share/Geant4-10.5.1/data/G4PARTICLEXS1.1"
>declare -x G4PIIDATA="/usr/share/Geant4-10.5.1/data/G4PII1.3"
>declare -x G4RADIOACTIVEDATA="/usr/share/Geant4-10.5.1/data/RadioactiveDecay5.3"
>declare -x G4REALSURFACEDATA="/usr/share/Geant4-10.5.1/data/RealSurface2.1.1"
>declare -x G4SAIDXSDATA="/usr/share/Geant4-10.5.1/data/G4SAIDDATA2.0"
>declare -x GCC_COLORS=""
>declare -x GCC_SPECS=""
>declare -x GO19CONCURRENTCOMPILATION="0"
>declare -x GOMAXPROCS="1"
>declare -x GPSD_PROTOCOLS=""
>declare -x GREP_COLORS="never"
>declare -x GRUB_PLATFORMS=""
>declare -x GSETTINGS_BACKEND="gconf"
>declare HDEPEND=""
>declare HOMEPAGE="https://wiki.ros.org/camera_calibration_parsers https://github.com/ros-perception/image_common"
>declare -x INHERITED=" desktop epatch estack toolchain-funcs multilib ltprune preserve-libs vcs-clean eutils multibuild python-utils-r1 python-r1 multiprocessing ninja-utils flag-o-matic xdg-utils cmake-utils ros-catkin"
>declare -x INPUT_DEVICES=""
>declare -x INSDESTTREE=""
>declare -x INSOPTIONS="-m0644"
>declare IUSE="python_targets_python2_7 test"
>declare -x IUSE_EFFECTIVE="abi_x86_64 alpha amd64 amd64-fbsd amd64-linux arm arm64 elibc_AIX elibc_Cygwin elibc_Darwin elibc_DragonFly elibc_FreeBSD elibc_HPUX elibc_Interix elibc_NetBSD elibc_OpenBSD elibc_SunOS elibc_Winnt elibc_bionic elibc_glibc elibc_mingw elibc_mintlib elibc_musl elibc_uclibc hppa ia64 kernel_AIX kernel_Darwin kernel_FreeBSD kernel_HPUX kernel_NetBSD kernel_OpenBSD kernel_SunOS kernel_Winnt kernel_freemint kernel_linux m68k m68k-mint mips ppc ppc-aix ppc-macos ppc64 ppc64-linux prefix prefix-guest prefix-stack python_targets_python2_7 riscv s390 sh sparc sparc-solaris sparc64-solaris test userland_BSD userland_GNU x64-cygwin x64-macos x64-solaris x86 x86-cygwin x86-fbsd x86-linux x86-macos x86-solaris x86-winnt"
>declare -x IUSE_IMPLICIT="abi_x86_64 prefix prefix-guest prefix-stack"
>declare -x KERNEL="linux"
>declare -x KERNEL_ABI="amd64"
>declare -x KEYWORDS="~amd64 ~arm"
>declare -x L10N=""
>declare -x LADSPA_PATH="/usr/lib64/ladspa"
>declare -x LANG="en_US.UTF-8"
>declare -x LCD_DEVICES=""
>declare -x LC_MESSAGES="C"
>declare -x LDFLAGS="-Wl,-O1 -Wl,--as-needed"
>declare -x LDFLAGS_amd64="-m elf_x86_64"
>declare -x LDFLAGS_default
>declare -x LDFLAGS_x32="-m elf32_x86_64"
>declare -x LDFLAGS_x86="-m elf_i386"
>declare -x LIBDIR_amd64="lib64"
>declare -x LIBDIR_default="lib"
>declare -x LIBDIR_x32="libx32"
>declare -x LIBDIR_x86="lib"
>declare -x LIBGUESTFS_PATH="/usr/share/guestfs/appliance/"
>declare -x LIBOPTIONS="-m0644"
>declare -x LIBREOFFICE_EXTENSIONS=""
>declare -x LICENSE="BSD"
>declare -x LIRC_DEVICES=""
>declare -x LLVM_TARGETS=""
>declare -x MAKEOPTS="-j1"
>declare -x MANPAGER="manpager"
>declare -- MIMEINFO_DATABASE_DIR="/usr/share/mime"
>declare -x MONKEYD_PLUGINS=""
>declare -x MULTILIB_ABIS="amd64 x86"
>declare -x MULTILIB_STRICT_DENY="64-bit.*shared object"
>declare -x MULTILIB_STRICT_DIRS="/lib32 /lib /usr/lib32 /usr/lib /usr/kde/*/lib32 /usr/kde/*/lib /usr/qt/*/lib32 /usr/qt/*/lib /usr/X11R6/lib32 /usr/X11R6/lib"
>declare -x MULTILIB_STRICT_EXEMPT="(perl5|gcc|gcc-lib|binutils|eclipse-3|debug|portage|udev|systemd|clang|python-exec|llvm)"
>declare -x NETBEANS_MODULES=""
>declare -x NGINX_MODULES_HTTP=""
>declare -x NGINX_MODULES_MAIL=""
>declare -x NGINX_MODULES_STREAM=""
>declare -x NINJAFLAGS="-j1"
>declare -x OFED_DRIVERS=""
>declare -x OFFICE_IMPLEMENTATION=""
>declare -x OMP_DYNAMIC="FALSE"
>declare -x OMP_NESTED="FALSE"
>declare -x OMP_NUM_THREADS="1"
>declare -x OPENGL_PROFILE="xorg-x11"
>declare -x OPENMPI_FABRICS=""
>declare -x OPENMPI_OFED_FEATURES=""
>declare -x OPENMPI_RM=""
>declare -a PATCHES=([0]="/var/tmp/portage/dev-ros/camera_calibration_parsers-1.11.13-r1/files/boostpython.patch")
>declare -x PATH="/usr/lib/portage/python3.6/ebuild-helpers/xattr:/usr/lib/portage/python3.6/ebuild-helpers:/usr/lib/llvm/8/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/opt/bin"
>declare -x PAX_MARKINGS="none"
>declare PDEPEND=""
>declare -x PHP_TARGETS=""
>declare -x PORTAGE_COMPRESSION_COMMAND="bzip2"
>declare -a PORTAGE_DOCOMPRESS=([0]="/usr/share/doc" [1]="/usr/share/info" [2]="/usr/share/man")
>declare -x PORTAGE_DOCOMPRESS_SIZE_LIMIT="128"
>declare -a PORTAGE_DOCOMPRESS_SKIP=([0]="/usr/share/doc/camera_calibration_parsers-1.11.13-r1/html")
>declare -a PORTAGE_DOSTRIP=([0]="/")
>declare -a PORTAGE_DOSTRIP_SKIP=()
>declare -x PORT_LOGDIR="/var/log/portage"
>declare -x POSTGRES_TARGETS=""
>declare -x PROFILE_ONLY_VARIABLES="ARCH ELIBC IUSE_IMPLICIT KERNEL USERLAND USE_EXPAND_IMPLICIT USE_EXPAND_UNPREFIXED USE_EXPAND_VALUES_ARCH USE_EXPAND_VALUES_ELIBC USE_EXPAND_VALUES_KERNEL USE_EXPAND_VALUES_USERLAND"
>declare -x PROPERTIES=""
>declare -x PYTHONDONTWRITEBYTECODE="1"
>declare -a PYTHON_COMPAT=([0]="python2_7")
>declare -- PYTHON_DEPS="python_targets_python2_7? ( >=dev-lang/python-2.7.5-r2:2.7 ) >=dev-lang/python-exec-2:=[python_targets_python2_7(-)?,-python_single_target_python2_7(-)]"
>declare -- PYTHON_REQUIRED_USE="|| ( python_targets_python2_7 )"
>declare -x PYTHON_SINGLE_TARGET=""
>declare -x PYTHON_TARGETS="python2_7"
>declare -- PYTHON_USEDEP="python_targets_python2_7(-)?,-python_single_target_python2_7(-)"
>declare -x QEMU_SOFTMMU_TARGETS=""
>declare -x QEMU_USER_TARGETS=""
>declare RDEPEND="
>	dev-ros/sensor_msgs[ros_messages_cxx(-),ros_messages_python(-),python_targets_python2_7(-)?,-python_single_target_python2_7(-)]
>	dev-libs/boost:=[python,python_targets_python2_7(-)?,-python_single_target_python2_7(-)]
>	dev-ros/rosconsole
>	>=dev-cpp/yaml-cpp-0.5:=
>	dev-ros/roscpp
>	dev-ros/roscpp_serialization
> python_targets_python2_7? ( >=dev-lang/python-2.7.5-r2:2.7 ) >=dev-lang/python-exec-2:=[python_targets_python2_7(-)?,-python_single_target_python2_7(-)]"
>declare REPOSITORY
>declare REQUIRED_USE="|| ( python_targets_python2_7 )"
>declare -x RESTRICT=""
>declare -x RESUMECOMMAND_SSH="bash -c \"x=\\\${2#ssh://} ; host=\\\${x%%/*} ; port=\\\${host##*:} ; host=\\\${host%:*} ; [[ \\\${host} = \\\${port} ]] && port= ; exec rsync --rsh=\\\"ssh \\\${port:+-p\\\${port}} \\\${3}\\\" -avP \\\"\\\${host}:/\\\${x#*/}\\\" \\\"\\\$1\\\"\" rsync \"\${DISTDIR}/\${FILE}\" \"\${URI}\" \"\${PORTAGE_SSH_OPTS}\""
>declare -x ROS_MASTER_URI="http://localhost:11311/"
>declare -x ROS_MESSAGES=""
>declare -x ROS_PACKAGE_PATH="/usr/share/ros_packages"
>declare -- ROS_REPO_URI="https://github.com/ros-perception/image_common"
>declare -x ROS_ROOT="/usr/share/ros"
>declare -- ROS_SUBDIR="camera_calibration_parsers"
>declare -x RUBY_TARGETS=""
>declare -x RUSTFLAGS="-C target-cpu=native -v -C codegen-units=1"
>declare -x RUST_TEST_TASKS="1"
>declare -x RUST_TEST_THREADS="1"
>declare -x S="/var/tmp/portage/dev-ros/camera_calibration_parsers-1.11.13-r1/work/image_common-1.11.13/camera_calibration_parsers"
>declare -x SANDBOX_DEBUG="0"
>declare -x SANDBOX_DENY=""
>declare -x SANDBOX_PREDICT="/var/tmp/portage/dev-ros/camera_calibration_parsers-1.11.13-r1/homedir:/dev/crypto:/var/cache/man:/var/cache/fontconfig"
>declare -x SANDBOX_READ="/:/var/tmp/portage"
>declare -x SANDBOX_VERBOSE="1"
>declare -x SANDBOX_WRITE=":/dev/console:/dev/fd:/dev/full:/dev/null:/dev/ptmx:/dev/pts/:/dev/pty:/dev/shm:/dev/tts:/dev/tty:/dev/vc/:/dev/zero:/proc/self/fd:/tmp/:/usr/lib32/cf:/usr/lib32/conftest:/usr/lib64/cf:/usr/lib64/conftest:/usr/lib/cf:/usr/lib/conftest:/usr/tmp/cf:/usr/tmp/conftest:/var/tmp/:/var/tmp/portage:/var/tmp/portage/dev-ros/camera_calibration_parsers-1.11.13-r1/homedir/.bash_history"
>declare -x SANE_BACKENDS=""
>declare -- SCM=""
>declare -x SHELL="/bin/bash"
>declare -x SLOT="0"
>declare SRC_URI="https://github.com/ros-perception/image_common/archive/1.11.13.tar.gz -> image_common-1.11.13.tar.gz"
>declare -x SYMLINK_LIB="no"
>declare -x TWISTED_DISABLE_WRITING_OF_PLUGIN_CACHE="1"
>declare -x USE="abi_x86_64 amd64 elibc_glibc kernel_linux python_targets_python2_7 userland_GNU"
>declare -x USERLAND="GNU"
>declare -x USE_EXPAND_IMPLICIT="ARCH ELIBC KERNEL USERLAND"
>declare -x USE_EXPAND_UNPREFIXED="ARCH"
>declare -x USE_EXPAND_VALUES_ARCH="alpha amd64 amd64-fbsd amd64-linux arm arm64 hppa ia64 m68k m68k-mint mips ppc ppc64 ppc64-linux ppc-aix ppc-macos riscv s390 sh sparc sparc64-solaris sparc-solaris x64-cygwin x64-macos x64-solaris x86 x86-cygwin x86-fbsd x86-linux x86-macos x86-solaris x86-winnt"
>declare -x USE_EXPAND_VALUES_ELIBC="AIX bionic Cygwin Darwin DragonFly FreeBSD glibc HPUX Interix mingw mintlib musl NetBSD OpenBSD SunOS uclibc Winnt"
>declare -x USE_EXPAND_VALUES_KERNEL="AIX Darwin FreeBSD freemint HPUX linux NetBSD OpenBSD SunOS Winnt"
>declare -x USE_EXPAND_VALUES_USERLAND="BSD GNU"
>declare -x UWSGI_PLUGINS=""
>declare -x VIDEO_CARDS=""
>declare -x VOICEMAIL_STORAGE=""
>declare -x XFCE_PLUGINS=""
>declare -x XTABLES_ADDONS=""
>declare -- _CMAKE_UTILS_ECLASS="1"
>declare -- _CMAKE_UTILS_SRC_PREPARE_HAS_RUN="1"
>declare -- _DESKTOP_ECLASS="1"
>declare -- _EPATCH_ECLASS="1"
>declare -- _ESTACK_ECLASS="1"
>declare -- _EUTILS_ECLASS="1"
>declare -x _E_DOCDESTTREE_=""
>declare -x _E_EXEDESTTREE_=""
>declare -- _FLAG_O_MATIC_ECLASS="1"
>declare -- _LTPRUNE_ECLASS="1"
>declare -- _MULTIBUILD="1"
>declare -- _MULTILIB_ECLASS="1"
>declare -- _MULTIPROCESSING_ECLASS="1"
>declare -- _NINJA_UTILS_ECLASS="1"
>declare -- _PRESERVE_LIBS_ECLASS="1"
>declare -a _PYTHON_ALL_IMPLS=([0]="jython2_7" [1]="pypy" [2]="pypy3" [3]="python2_7" [4]="python3_5" [5]="python3_6" [6]="python3_7")
>declare -- _PYTHON_R1="1"
>declare -a _PYTHON_SUPPORTED_IMPLS=([0]="python2_7")
>declare -a _PYTHON_UNSUPPORTED_IMPLS=([0]="jython2_7" [1]="pypy" [2]="pypy3" [3]="python3_5" [4]="python3_6" [5]="python3_7")
>declare -- _PYTHON_UTILS_R1="1"
>declare -- _TOOLCHAIN_FUNCS_ECLASS="1"
>declare -- phase_func
>PYTHON () 
>{ 
>    die "${FUNCNAME}() is invalid for python-r1 suite, please take a look @ https://wiki.gentoo.org/wiki/Project:Python/Python.eclass_conversion#.24.28PYTHON.29.2C_.24.7BEPYTHON.7D"
>}
>__eapi6_src_install () 
>{ 
>    if [[ -f Makefile || -f GNUmakefile || -f makefile ]]; then
>        emake DESTDIR="${D}" install;
>    fi;
>    einstalldocs
>}
>__eapi6_src_prepare () 
>{ 
>    if ___is_indexed_array_var PATCHES; then
>        [[ ${#PATCHES[@]} -gt 0 ]] && eapply "${PATCHES[@]}";
>    else
>        if [[ -n ${PATCHES} ]]; then
>            eapply ${PATCHES};
>        fi;
>    fi;
>    eapply_user
>}
>_clang_fullversion () 
>{ 
>    local ver="$1";
>    shift;
>    set -- $($(tc-getCPP "$@") -E -P - <<<"__clang_major__ __clang_minor__ __clang_patchlevel__");
>    eval echo "$ver"
>}
>_cmake_check_build_dir () 
>{ 
>    : ${CMAKE_USE_DIR:=${S}};
>    if [[ -n ${CMAKE_IN_SOURCE_BUILD} ]]; then
>        BUILD_DIR="${CMAKE_USE_DIR}";
>    else
>        if [[ ! -n ${BUILD_DIR} && -n ${CMAKE_BUILD_DIR} ]]; then
>            if [[ ${EAPI} != [56] ]]; then
>                eerror "The CMAKE_BUILD_DIR variable has been renamed to BUILD_DIR.";
>                die "The ebuild must be migrated to BUILD_DIR.";
>            else
>                eqawarn "The CMAKE_BUILD_DIR variable has been renamed to BUILD_DIR.";
>                eqawarn "Please migrate the ebuild to use the new one.";
>            fi;
>            _RESPECT_CMAKE_BUILD_DIR=1;
>        fi;
>        if [[ -n ${_RESPECT_CMAKE_BUILD_DIR} ]]; then
>            BUILD_DIR=${CMAKE_BUILD_DIR:-${WORKDIR}/${P}_build};
>        else
>            : ${BUILD_DIR:=${WORKDIR}/${P}_build};
>        fi;
>    fi;
>    [[ ${EAPI} == [56] ]] && CMAKE_BUILD_DIR=${BUILD_DIR};
>    mkdir -p "${BUILD_DIR}" || die;
>    echo ">>> Working in BUILD_DIR: \"$BUILD_DIR\""
>}
>_cmake_cleanup_cmake () 
>{ 
>    : ${CMAKE_USE_DIR:=${S}};
>    if [[ "${CMAKE_REMOVE_MODULES}" == "yes" ]]; then
>        local name;
>        for name in ${CMAKE_REMOVE_MODULES_LIST};
>        do
>            find "${S}" -name ${name}.cmake -exec rm -v {} + || die;
>        done;
>    fi;
>    if [[ ! -e ${CMAKE_USE_DIR}/CMakeLists.txt ]]; then
>        eerror "Unable to locate CMakeLists.txt under:";
>        eerror "\"${CMAKE_USE_DIR}/CMakeLists.txt\"";
>        eerror "Consider not inheriting the cmake eclass.";
>        die "FATAL: Unable to find CMakeLists.txt";
>    fi;
>    _cmake_modify-cmakelists
>}
>_cmake_emake_src_make () 
>{ 
>    debug-print-function ${FUNCNAME} "$@";
>    [[ -e Makefile ]] || die "Makefile not found. Error during configure stage.";
>    if [[ "${CMAKE_VERBOSE}" != "OFF" ]]; then
>        emake VERBOSE=1 "$@" || die;
>    else
>        emake "$@" || die;
>    fi
>}
>_cmake_generator_to_use () 
>{ 
>    local generator_name;
>    case ${CMAKE_MAKEFILE_GENERATOR} in 
>        ninja)
>            case ${EAPI} in 
>                5 | 6)
>                    if ! ROOT=/ has_version dev-util/ninja; then
>                        die "CMAKE_MAKEFILE_GENERATOR is set to ninja, but ninja is not installed. Please install dev-util/ninja or unset CMAKE_MAKEFILE_GENERATOR.";
>                    fi
>                ;;
>                *)
>                    if ! has_version -b dev-util/ninja; then
>                        die "CMAKE_MAKEFILE_GENERATOR is set to ninja, but ninja is not installed. Please install dev-util/ninja or unset CMAKE_MAKEFILE_GENERATOR.";
>                    fi
>                ;;
>            esac;
>            generator_name="Ninja"
>        ;;
>        emake)
>            generator_name="Unix Makefiles"
>        ;;
>        *)
>            eerror "Unknown value for \${CMAKE_MAKEFILE_GENERATOR}";
>            die "Value ${CMAKE_MAKEFILE_GENERATOR} is not supported"
>        ;;
>    esac;
>    echo ${generator_name}
>}
>_cmake_modify-cmakelists () 
>{ 
>    debug-print-function ${FUNCNAME} "$@";
>    grep -qs "<<< Gentoo configuration >>>" "${CMAKE_USE_DIR}"/CMakeLists.txt && return 0;
>    find "${CMAKE_USE_DIR}" -name CMakeLists.txt -exec sed -e '/^[[:space:]]*set[[:space:]]*([[:space:]]*CMAKE_BUILD_TYPE$[[:space:]].*)\|)$/I{s/^/#_cmake_modify_IGNORE /g}' -e '/^[[:space:]]*set[[:space:]]*([[:space:]]*CMAKE_COLOR_MAKEFILE[[:space:]].*)/I{s/^/#_cmake_modify_IGNORE /g}' -e '/^[[:space:]]*set[[:space:]]*([[:space:]]*CMAKE_INSTALL_PREFIX[[:space:]].*)/I{s/^/#_cmake_modify_IGNORE /g}' -e '/^[[:space:]]*set[[:space:]]*([[:space:]]*CMAKE_VERBOSE_MAKEFILE[[:space:]].*)/I{s/^/#_cmake_modify_IGNORE /g}' -i {} + || die "${LINENO}: failed to disable hardcoded settings";
>    local x;
>    for x in $(find "${CMAKE_USE_DIR}" -name CMakeLists.txt -exec grep -l "^#_cmake_modify_IGNORE" {} +;);
>    do
>        einfo "Hardcoded definition(s) removed in $(echo "${x}" | cut -c $((${#CMAKE_USE_DIR}+2))-):";
>        einfo "$(grep -se '^#_cmake_modify_IGNORE' ${x} | cut -c 22-99)";
>    done;
>    cat >> "${CMAKE_USE_DIR}"/CMakeLists.txt <<-_EOF_ || 
>
>MESSAGE(STATUS "<<< Gentoo configuration >>>
>Build type      \${CMAKE_BUILD_TYPE}
>Install path    \${CMAKE_INSTALL_PREFIX}
>Compiler flags:
>C               \${CMAKE_C_FLAGS}
>C++             \${CMAKE_CXX_FLAGS}
>Linker flags:
>Executable      \${CMAKE_EXE_LINKER_FLAGS}
>Module          \${CMAKE_MODULE_LINKER_FLAGS}
>Shared          \${CMAKE_SHARED_LINKER_FLAGS}\n")
>_EOF_
> die
>}
>_cmake_ninja_src_make () 
>{ 
>    debug-print-function ${FUNCNAME} "$@";
>    [[ -e build.ninja ]] || die "build.ninja not found. Error during configure stage.";
>    eninja "$@"
>}
>_cmake_use_me_now () 
>{ 
>    debug-print-function ${FUNCNAME} "$@";
>    local arg=$2;
>    [[ ! -z $3 ]] && arg=$3;
>    [[ ${EAPI} == 5 ]] || die "${FUNCNAME[1]} is banned in EAPI 6 and later: use -D$1<related_CMake_variable>=\"\$(usex $2)\" instead";
>    local uper capitalised x;
>    [[ -z $2 ]] && die "cmake-utils_use-$1 <USE flag> [<flag name>]";
>    if [[ ! -z $3 ]]; then
>        echo "-D$1$3=$(use $2 && echo ON || echo OFF)";
>    else
>        uper=$(echo ${2} | tr '[:lower:]' '[:upper:]');
>        capitalised=$(echo ${2} | sed 's/\<$.$$[^ ]*$/\u\1\L\2/g');
>        for x in $2 $uper $capitalised;
>        do
>            echo "-D$1$x=$(use $2 && echo ON || echo OFF) ";
>        done;
>    fi
>}
>_cmake_use_me_now_inverted () 
>{ 
>    debug-print-function ${FUNCNAME} "$@";
>    local arg=$2;
>    [[ ! -z $3 ]] && arg=$3;
>    if [[ ${EAPI} != 5 && "${FUNCNAME[1]}" != cmake-utils_use_find_package ]]; then
>        die "${FUNCNAME[1]} is banned in EAPI 6 and later: use -D$1<related_CMake_variable>=\"\$(usex $2)\" instead";
>    fi;
>    local uper capitalised x;
>    [[ -z $2 ]] && die "cmake-utils_use-$1 <USE flag> [<flag name>]";
>    if [[ ! -z $3 ]]; then
>        echo "-D$1$3=$(use $2 && echo OFF || echo ON)";
>    else
>        uper=$(echo ${2} | tr '[:lower:]' '[:upper:]');
>        capitalised=$(echo ${2} | sed 's/\<$.$$[^ ]*$/\u\1\L\2/g');
>        for x in $2 $uper $capitalised;
>        do
>            echo "-D$1$x=$(use $2 && echo OFF || echo ON) ";
>        done;
>    fi
>}
>_epatch_draw_line () 
>{ 
>    [[ -z $1 ]] && set "$(printf "%65s" '')";
>    echo "${1//?/=}"
>}
>_filter-hardened () 
>{ 
>    local f;
>    for f in "$@";
>    do
>        case "${f}" in 
>            -fPIC | -fpic | -fPIE | -fpie | -Wl,pie | -pie)
>                gcc-specs-pie || continue;
>                if ! is-flagq -nopie && ! is-flagq -no-pie; then
>                    if test-flags -nopie > /dev/null; then
>                        append-flags -nopie;
>                    else
>                        append-flags -no-pie;
>                    fi;
>                fi
>            ;;
>            -fstack-protector)
>                gcc-specs-ssp || continue;
>                is-flagq -fno-stack-protector || append-flags $(test-flags -fno-stack-protector)
>            ;;
>            -fstack-protector-all)
>                gcc-specs-ssp-to-all || continue;
>                is-flagq -fno-stack-protector-all || append-flags $(test-flags -fno-stack-protector-all)
>            ;;
>            -fno-strict-overflow)
>                gcc-specs-nostrict || continue;
>                is-flagq -fstrict-overflow || append-flags $(test-flags -fstrict-overflow)
>            ;;
>        esac;
>    done
>}
>_filter-var () 
>{ 
>    local f x var=$1 new=();
>    shift;
>    for f in ${!var};
>    do
>        for x in "$@";
>        do
>            [[ ${f} == ${x} ]] && continue 2;
>        done;
>        new+=("${f}");
>    done;
>    export ${var}="${new[*]}"
>}
>_gcc-install-dir () 
>{ 
>    echo "$(LC_ALL=C $(tc-getCC) -print-search-dirs 2> /dev/null |		awk '$1=="install:" {print $2}')"
>}
>_gcc-specs-directive_raw () 
>{ 
>    local cc=$(tc-getCC);
>    local specfiles=$(LC_ALL=C ${cc} -v 2>&1 | awk '$1=="Reading" {print $NF}');
>    ${cc} -dumpspecs 2> /dev/null | cat - ${specfiles} | awk -v directive=$1 'BEGIN	{ pspec=""; spec=""; outside=1 }
>$1=="*"directive":"  { pspec=spec; spec=""; outside=0; next }
>	outside || NF==0 || ( substr($1,1,1)=="*" && substr($1,length($1),1)==":" ) { outside=1; next }
>	spec=="" && substr($0,1,1)=="+" { spec=pspec " " substr($0,2); next }
>	{ spec=spec $0 }
>END	{ print spec }';
>    return 0
>}
>_gcc-specs-exists () 
>{ 
>    [[ -f $(_gcc-install-dir)/$1 ]]
>}
>_gcc_fullversion () 
>{ 
>    local ver="$1";
>    shift;
>    set -- $($(tc-getCPP "$@") -E -P - <<<"__GNUC__ __GNUC_MINOR__ __GNUC_PATCHLEVEL__");
>    eval echo "$ver"
>}
>_iconins () 
>{ 
>    ( insopts -m 0644;
>    local funcname=$1;
>    shift;
>    local size dir;
>    local context=apps;
>    local theme=hicolor;
>    while [[ $# -gt 0 ]]; do
>        case $1 in 
>            -s | --size)
>                if [[ ${2%%x*}x${2%%x*} == "$2" ]]; then
>                    size=${2%%x*};
>                else
>                    size=${2};
>                fi;
>                case ${size} in 
>                    16 | 22 | 24 | 32 | 36 | 48 | 64 | 72 | 96 | 128 | 192 | 256 | 512)
>                        size=${size}x${size}
>                    ;;
>                    scalable)
>
>                    ;;
>                    *)
>                        eerror "${size} is an unsupported icon size!";
>                        exit 1
>                    ;;
>                esac;
>                shift 2
>            ;;
>            -t | --theme)
>                theme=${2};
>                shift 2
>            ;;
>            -c | --context)
>                context=${2};
>                shift 2
>            ;;
>            *)
>                if [[ -z ${size} ]]; then
>                    insinto /usr/share/pixmaps;
>                else
>                    insinto /usr/share/icons/${theme}/${size}/${context};
>                fi;
>                if [[ ${funcname} == doicon ]]; then
>                    if [[ -f $1 ]]; then
>                        doins "${1}";
>                    else
>                        if [[ -d $1 ]]; then
>                            shopt -s nullglob;
>                            doins "${1}"/*.{png,svg};
>                            shopt -u nullglob;
>                        else
>                            eerror "${1} is not a valid file/directory!";
>                            exit 1;
>                        fi;
>                    fi;
>                else
>                    break;
>                fi;
>                shift 1
>            ;;
>        esac;
>    done;
>    if [[ ${funcname} == newicon ]]; then
>        newins "$@";
>    fi ) || die
>}
>_is_flagq () 
>{ 
>    local x var="$1[*]";
>    for x in ${!var};
>    do
>        [[ ${x} == $2 ]] && return 0;
>    done;
>    return 1
>}
>_python_check_dead_variables () 
>{ 
>    local v;
>    for v in PYTHON_DEPEND PYTHON_USE_WITH{,_OR,_OPT} {RESTRICT,SUPPORT}_PYTHON_ABIS;
>    do
>        if [[ -n ${!v} ]]; then
>            die "${v} is invalid for python-r1 suite, please take a look @ https://wiki.gentoo.org/wiki/Project:Python/Python.eclass_conversion#Ebuild_head";
>        fi;
>    done;
>    for v in PYTHON_{CPPFLAGS,CFLAGS,CXXFLAGS,LDFLAGS};
>    do
>        if [[ -n ${!v} ]]; then
>            die "${v} is invalid for python-r1 suite, please take a look @ https://wiki.gentoo.org/wiki/Project:Python/Python.eclass_conversion#PYTHON_CFLAGS";
>        fi;
>    done;
>    for v in PYTHON_TESTS_RESTRICTED_ABIS PYTHON_EXPORT_PHASE_FUNCTIONS PYTHON_VERSIONED_{SCRIPTS,EXECUTABLES} PYTHON_NONVERSIONED_EXECUTABLES;
>    do
>        if [[ -n ${!v} ]]; then
>            die "${v} is invalid for python-r1 suite";
>        fi;
>    done;
>    for v in DISTUTILS_USE_SEPARATE_SOURCE_DIRECTORIES DISTUTILS_SETUP_FILES DISTUTILS_GLOBAL_OPTIONS DISTUTILS_SRC_TEST PYTHON_MODNAME;
>    do
>        if [[ -n ${!v} ]]; then
>            die "${v} is invalid for distutils-r1, please take a look @ https://wiki.gentoo.org/wiki/Project:Python/Python.eclass_conversion#${v}";
>        fi;
>    done;
>    if [[ -n ${DISTUTILS_DISABLE_TEST_DEPENDENCY} ]]; then
>        die "${v} is invalid for distutils-r1, please take a look @ https://wiki.gentoo.org/wiki/Project:Python/Python.eclass_conversion#DISTUTILS_SRC_TEST";
>    fi;
>    for v in PYTHON_BDEPEND PYTHON_MULTIPLE_ABIS PYTHON_ABI_TYPE PYTHON_RESTRICTED_ABIS PYTHON_TESTS_FAILURES_TOLERANT_ABIS PYTHON_CFFI_MODULES_GENERATION_COMMANDS;
>    do
>        if [[ -n ${!v} ]]; then
>            die "${v} is invalid for python-r1 suite";
>        fi;
>    done
>}
>_python_check_locale_sanity () 
>{ 
>    local -x LC_ALL=${1};
>    local IFS=;
>    local lc=({a..z});
>    local uc=({A..Z});
>    local input="${lc[*]}${uc[*]}";
>    local output=$(tr '[:lower:][:upper:]' '[:upper:][:lower:]' <<<"${input}");
>    [[ ${output} == "${uc[*]}${lc[*]}" ]]
>}
>_python_impl_matches () 
>{ 
>    [[ ${#} -ge 2 ]] || die "${FUNCNAME}: takes at least 2 parameters";
>    local impl=${1} pattern;
>    shift;
>    for pattern in "$@";
>    do
>        if [[ ${pattern} == -2 ]]; then
>            ! python_is_python3 "${impl}";
>            return;
>        else
>            if [[ ${pattern} == -3 ]]; then
>                python_is_python3 "${impl}";
>                return;
>            else
>                if [[ ${impl/./_} == ${pattern/./_} ]]; then
>                    return 0;
>                fi;
>            fi;
>        fi;
>    done;
>    return 1
>}
>_python_impl_supported () 
>{ 
>    debug-print-function ${FUNCNAME} "${@}";
>    [[ ${#} -eq 1 ]] || die "${FUNCNAME}: takes exactly 1 argument (impl).";
>    local impl=${1};
>    case "${impl}" in 
>        python2_7 | python3_[567] | jython2_7)
>            return 0
>        ;;
>        pypy1_[89] | pypy2_0 | python2_[56] | python3_[1234])
>            return 1
>        ;;
>        pypy | pypy3)
>            if [[ ${EAPI:-0} == [01234] ]]; then
>                die "PyPy is supported in EAPI 5 and newer only.";
>            fi
>        ;;
>        *)
>            [[ -n ${PYTHON_COMPAT_NO_STRICT} ]] && return 1;
>            die "Invalid implementation in PYTHON_COMPAT: ${impl}"
>        ;;
>    esac
>}
>_python_ln_rel () 
>{ 
>    debug-print-function ${FUNCNAME} "${@}";
>    local target=${1};
>    local symname=${2};
>    local tgpath=${target%/*}/;
>    local sympath=${symname%/*}/;
>    local rel_target=;
>    while [[ -n ${sympath} ]]; do
>        local tgseg= symseg=;
>        while [[ ! -n ${tgseg} && -n ${tgpath} ]]; do
>            tgseg=${tgpath%%/*};
>            tgpath=${tgpath#${tgseg}/};
>        done;
>        while [[ ! -n ${symseg} && -n ${sympath} ]]; do
>            symseg=${sympath%%/*};
>            sympath=${sympath#${symseg}/};
>        done;
>        if [[ ${tgseg} != ${symseg} ]]; then
>            rel_target=../${rel_target}${tgseg:+${tgseg}/};
>        fi;
>    done;
>    rel_target+=${tgpath}${target##*/};
>    debug-print "${FUNCNAME}: ${symname} -> ${target}";
>    debug-print "${FUNCNAME}: rel_target = ${rel_target}";
>    ln -fs "${rel_target}" "${symname}"
>}
>_python_multibuild_wrapper () 
>{ 
>    debug-print-function ${FUNCNAME} "${@}";
>    local -x EPYTHON PYTHON;
>    local -x PATH=${PATH} PKG_CONFIG_PATH=${PKG_CONFIG_PATH};
>    python_export "${MULTIBUILD_VARIANT}" EPYTHON PYTHON;
>    python_wrapper_setup;
>    "${@}"
>}
>_python_obtain_impls () 
>{ 
>    _python_validate_useflags;
>    if [[ -n ${PYTHON_COMPAT_OVERRIDE} ]]; then
>        MULTIBUILD_VARIANTS=(${PYTHON_COMPAT_OVERRIDE});
>        return;
>    fi;
>    MULTIBUILD_VARIANTS=();
>    local impl;
>    for impl in "${_PYTHON_SUPPORTED_IMPLS[@]}";
>    do
>        has "${impl}" "${PYTHON_COMPAT[@]}" && use "python_targets_${impl}" && MULTIBUILD_VARIANTS+=("${impl}");
>    done
>}
>_python_set_impls () 
>{ 
>    local i;
>    if ! declare -p PYTHON_COMPAT &> /dev/null; then
>        die 'PYTHON_COMPAT not declared.';
>    fi;
>    if [[ $(declare -p PYTHON_COMPAT) != "declare -a"* ]]; then
>        die 'PYTHON_COMPAT must be an array.';
>    fi;
>    for i in "${PYTHON_COMPAT[@]}";
>    do
>        _python_impl_supported "${i}";
>    done;
>    local supp=() unsupp=();
>    for i in "${_PYTHON_ALL_IMPLS[@]}";
>    do
>        if has "${i}" "${PYTHON_COMPAT[@]}"; then
>            supp+=("${i}");
>        else
>            unsupp+=("${i}");
>        fi;
>    done;
>    if [[ ! -n ${supp[@]} ]]; then
>        die "No supported implementation in PYTHON_COMPAT.";
>    fi;
>    if [[ -n ${_PYTHON_SUPPORTED_IMPLS[@]} ]]; then
>        if [[ ${_PYTHON_SUPPORTED_IMPLS[@]} != ${supp[@]} ]]; then
>            eerror "Supported impls (PYTHON_COMPAT) changed between inherits!";
>            eerror "Before: ${_PYTHON_SUPPORTED_IMPLS[*]}";
>            eerror "Now   : ${supp[*]}";
>            die "_PYTHON_SUPPORTED_IMPLS integrity check failed";
>        fi;
>        if [[ ${_PYTHON_UNSUPPORTED_IMPLS[@]} != ${unsupp[@]} ]]; then
>            eerror "Unsupported impls changed between inherits!";
>            eerror "Before: ${_PYTHON_UNSUPPORTED_IMPLS[*]}";
>            eerror "Now   : ${unsupp[*]}";
>            die "_PYTHON_UNSUPPORTED_IMPLS integrity check failed";
>        fi;
>    else
>        _PYTHON_SUPPORTED_IMPLS=("${supp[@]}");
>        _PYTHON_UNSUPPORTED_IMPLS=("${unsupp[@]}");
>        readonly _PYTHON_SUPPORTED_IMPLS _PYTHON_UNSUPPORTED_IMPLS;
>    fi
>}
>_python_validate_useflags () 
>{ 
>    debug-print-function ${FUNCNAME} "${@}";
>    if [[ -n ${PYTHON_COMPAT_OVERRIDE} ]]; then
>        if [[ ! -n ${_PYTHON_COMPAT_OVERRIDE_WARNED} ]]; then
>            ewarn "WARNING: PYTHON_COMPAT_OVERRIDE in effect. The following Python";
>            ewarn "implementations will be enabled:";
>            ewarn;
>            ewarn "	${PYTHON_COMPAT_OVERRIDE}";
>            ewarn;
>            ewarn "Dependencies won't be satisfied, and PYTHON_TARGETS will be ignored.";
>            _PYTHON_COMPAT_OVERRIDE_WARNED=1;
>        fi;
>        return;
>    fi;
>    local i;
>    for i in "${_PYTHON_SUPPORTED_IMPLS[@]}";
>    do
>        use "python_targets_${i}" && return 0;
>    done;
>    eerror "No Python implementation selected for the build. Please add one";
>    eerror "of the following values to your PYTHON_TARGETS (in make.conf):";
>    eerror;
>    eerror "${PYTHON_COMPAT[@]}";
>    echo;
>    die "No supported Python implementation in PYTHON_TARGETS."
>}
>_tc-getPROG () 
>{ 
>    local tuple=$1;
>    local v var vars=$2;
>    local prog=($3);
>    var=${vars%% *};
>    for v in ${vars};
>    do
>        if [[ -n ${!v} ]]; then
>            export ${var}="${!v}";
>            echo "${!v}";
>            return 0;
>        fi;
>    done;
>    local search=;
>    [[ -n $4 ]] && search=$(type -p $4-${prog[0]});
>    [[ -z ${search} && -n ${!tuple} ]] && search=$(type -p ${!tuple}-${prog[0]});
>    [[ -n ${search} ]] && prog[0]=${search##*/};
>    export ${var}="${prog[*]}";
>    echo "${!var}"
>}
>all-flag-vars () 
>{ 
>    echo {ADA,C,CPP,CXX,CCAS,F,FC,LD}FLAGS
>}
>append-cflags () 
>{ 
>    [[ $# -eq 0 ]] && return 0;
>    export CFLAGS+=" $*";
>    return 0
>}
>append-cppflags () 
>{ 
>    [[ $# -eq 0 ]] && return 0;
>    export CPPFLAGS+=" $*";
>    return 0
>}
>append-cxxflags () 
>{ 
>    [[ $# -eq 0 ]] && return 0;
>    export CXXFLAGS+=" $*";
>    return 0
>}
>append-fflags () 
>{ 
>    [[ $# -eq 0 ]] && return 0;
>    export FFLAGS+=" $*";
>    export FCFLAGS+=" $*";
>    return 0
>}
>append-flags () 
>{ 
>    [[ $# -eq 0 ]] && return 0;
>    case " $* " in 
>        *' '-[DIU]*)
>            eqawarn 'please use append-cppflags for preprocessor flags'
>        ;;
>        *' '-L* | *' '-Wl,*)
>            eqawarn 'please use append-ldflags for linker flags'
>        ;;
>    esac;
>    append-cflags "$@";
>    append-cxxflags "$@";
>    append-fflags "$@";
>    return 0
>}
>append-ldflags () 
>{ 
>    [[ $# -eq 0 ]] && return 0;
>    local flag;
>    for flag in "$@";
>    do
>        [[ ${flag} == -l* ]] && eqawarn "Appending a library link instruction (${flag}); libraries to link to should not be passed through LDFLAGS";
>    done;
>    export LDFLAGS="${LDFLAGS} $*";
>    return 0
>}
>append-lfs-flags () 
>{ 
>    [[ $# -ne 0 ]] && die "append-lfs-flags takes no arguments";
>    append-cppflags -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE
>}
>append-libs () 
>{ 
>    [[ $# -eq 0 ]] && return 0;
>    local flag;
>    for flag in "$@";
>    do
>        if [[ -z "${flag// }" ]]; then
>            eqawarn "Appending an empty argument to LIBS is invalid! Skipping.";
>            continue;
>        fi;
>        case $flag in 
>            -[lL]*)
>                export LIBS="${LIBS} ${flag}"
>            ;;
>            -*)
>                eqawarn "Appending non-library to LIBS (${flag}); Other linker flags should be passed via LDFLAGS";
>                export LIBS="${LIBS} ${flag}"
>            ;;
>            *)
>                export LIBS="${LIBS} -l${flag}"
>            ;;
>        esac;
>    done;
>    return 0
>}
>clang-fullversion () 
>{ 
>    _clang_fullversion '$1.$2.$3' "$@"
>}
>clang-major-version () 
>{ 
>    _clang_fullversion '$1' "$@"
>}
>clang-micro-version () 
>{ 
>    _clang_fullversion '$3' "$@"
>}
>clang-minor-version () 
>{ 
>    _clang_fullversion '$2' "$@"
>}
>clang-version () 
>{ 
>    _clang_fullversion '$1.$2' "$@"
>}
>cmake-utils_src_compile () 
>{ 
>    debug-print-function ${FUNCNAME} "$@";
>    cmake-utils_src_make "$@"
>}
>cmake-utils_src_configure () 
>{ 
>    debug-print-function ${FUNCNAME} "$@";
>    if [[ ! -n ${_CMAKE_UTILS_SRC_PREPARE_HAS_RUN} ]]; then
>        if [[ ${EAPI} != [56] ]]; then
>            die "FATAL: cmake-utils_src_prepare has not been run";
>        else
>            eqawarn "cmake-utils_src_prepare has not been run, please open a bug on https://bugs.gentoo.org/";
>        fi;
>    fi;
>    [[ ${EAPI} == 5 ]] && _cmake_cleanup_cmake;
>    _cmake_check_build_dir;
>    xdg_environment_reset;
>    if [[ ${CMAKE_BUILD_TYPE} = Gentoo ]]; then
>        if ! has debug ${IUSE//+} || ! use debug; then
>            local CPPFLAGS=${CPPFLAGS};
>            append-cppflags -DNDEBUG;
>        fi;
>    fi;
>    local build_rules=${BUILD_DIR}/gentoo_rules.cmake;
>    cat > "${build_rules}" <<-_EOF_ || 
>SET (CMAKE_ASM_COMPILE_OBJECT "<CMAKE_ASM_COMPILER> <DEFINES> <INCLUDES> ${CPPFLAGS} <FLAGS> -o <OBJECT> -c <SOURCE>" CACHE STRING "ASM compile command" FORCE)
>SET (CMAKE_ASM-ATT_COMPILE_OBJECT "<CMAKE_ASM-ATT_COMPILER> <DEFINES> <INCLUDES> ${CPPFLAGS} <FLAGS> -o <OBJECT> -c -x assembler <SOURCE>" CACHE STRING "ASM-ATT compile command" FORCE)
>SET (CMAKE_ASM-ATT_LINK_FLAGS "-nostdlib" CACHE STRING "ASM-ATT link flags" FORCE)
>SET (CMAKE_C_COMPILE_OBJECT "<CMAKE_C_COMPILER> <DEFINES> <INCLUDES> ${CPPFLAGS} <FLAGS> -o <OBJECT> -c <SOURCE>" CACHE STRING "C compile command" FORCE)
>SET (CMAKE_CXX_COMPILE_OBJECT "<CMAKE_CXX_COMPILER> <DEFINES> <INCLUDES> ${CPPFLAGS} <FLAGS> -o <OBJECT> -c <SOURCE>" CACHE STRING "C++ compile command" FORCE)
>SET (CMAKE_Fortran_COMPILE_OBJECT "<CMAKE_Fortran_COMPILER> <DEFINES> <INCLUDES> ${FCFLAGS} <FLAGS> -o <OBJECT> -c <SOURCE>" CACHE STRING "Fortran compile command" FORCE)
>_EOF_
> die
>    local myCC=$(tc-getCC) myCXX=$(tc-getCXX) myFC=$(tc-getFC);
>    local toolchain_file=${BUILD_DIR}/gentoo_toolchain.cmake;
>    cat > ${toolchain_file} <<-_EOF_ || 
>SET (CMAKE_ASM_COMPILER "${myCC/ /;}")
>SET (CMAKE_ASM-ATT_COMPILER "${myCC/ /;}")
>SET (CMAKE_C_COMPILER "${myCC/ /;}")
>SET (CMAKE_CXX_COMPILER "${myCXX/ /;}")
>SET (CMAKE_Fortran_COMPILER "${myFC/ /;}")
>SET (CMAKE_AR $(type -P $(tc-getAR)) CACHE FILEPATH "Archive manager" FORCE)
>SET (CMAKE_RANLIB $(type -P $(tc-getRANLIB)) CACHE FILEPATH "Archive index generator" FORCE)
>SET (CMAKE_SYSTEM_PROCESSOR "${CHOST%%-*}")
>_EOF_
> die
>    local -x ASMFLAGS=${CFLAGS};
>    local -x PKG_CONFIG=$(tc-getPKG_CONFIG);
>    if tc-is-cross-compiler; then
>        local sysname;
>        case "${KERNEL:-linux}" in 
>            Cygwin)
>                sysname="CYGWIN_NT-5.1"
>            ;;
>            HPUX)
>                sysname="HP-UX"
>            ;;
>            linux)
>                sysname="Linux"
>            ;;
>            Winnt)
>                sysname="Windows";
>                cat >> "${toolchain_file}" <<-_EOF_ || 
>SET (CMAKE_RC_COMPILER $(tc-getRC))
>_EOF_
> die
>            ;;
>            *)
>                sysname="${KERNEL}"
>            ;;
>        esac
>        cat >> "${toolchain_file}" <<-_EOF_ || 
>SET (CMAKE_SYSTEM_NAME "${sysname}")
>_EOF_
> die
>        if [ "${SYSROOT:-/}" != "/" ]; then
>            cat >> "${toolchain_file}" <<-_EOF_ || 
>SET (CMAKE_FIND_ROOT_PATH "${SYSROOT}")
>SET (CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
>SET (CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
>SET (CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
>_EOF_
> die;
>        fi;
>    fi
>    if use prefix-guest; then
>        cat >> "${build_rules}" <<-_EOF_ || 
># in Prefix we need rpath and must ensure cmake gets our default linker path
># right ... except for Darwin hosts
>IF (NOT APPLE)
>SET (CMAKE_SKIP_RPATH OFF CACHE BOOL "" FORCE)
>SET (CMAKE_PLATFORM_REQUIRED_RUNTIME_PATH "${EPREFIX}/usr/${CHOST}/lib/gcc;${EPREFIX}/usr/${CHOST}/lib;${EPREFIX}/usr/$(get_libdir);${EPREFIX}/$(get_libdir)"
>CACHE STRING "" FORCE)
>
>ELSE ()
>
>SET (CMAKE_PREFIX_PATH "${EPREFIX}/usr" CACHE STRING "" FORCE)
>SET (CMAKE_MACOSX_RPATH ON CACHE BOOL "" FORCE)
>SET (CMAKE_SKIP_BUILD_RPATH OFF CACHE BOOL "" FORCE)
>SET (CMAKE_SKIP_RPATH OFF CACHE BOOL "" FORCE)
>SET (CMAKE_INSTALL_RPATH_USE_LINK_PATH TRUE CACHE BOOL "" FORCE)
>
>ENDIF (NOT APPLE)
>_EOF_
> die;
>    fi
>    local common_config=${BUILD_DIR}/gentoo_common_config.cmake;
>    local libdir=$(get_libdir);
>    cat > "${common_config}" <<-_EOF_ || 
>SET (CMAKE_GENTOO_BUILD ON CACHE BOOL "Indicate Gentoo package build")
>SET (LIB_SUFFIX ${libdir/lib} CACHE STRING "library path suffix" FORCE)
>SET (CMAKE_INSTALL_LIBDIR ${libdir} CACHE PATH "Output directory for libraries")
>SET (CMAKE_INSTALL_INFODIR "${EPREFIX}/usr/share/info" CACHE PATH "")
>SET (CMAKE_INSTALL_MANDIR "${EPREFIX}/usr/share/man" CACHE PATH "")
>SET (CMAKE_USER_MAKE_RULES_OVERRIDE "${build_rules}" CACHE FILEPATH "Gentoo override rules")
>_EOF_
> die
>    [[ "${NOCOLOR}" = true || "${NOCOLOR}" = yes ]] && echo 'SET (CMAKE_COLOR_MAKEFILE OFF CACHE BOOL "pretty colors during make" FORCE)' >> "${common_config}";
>    if [[ ${EAPI} != [56] ]]; then
>        cat >> "${common_config}" <<-_EOF_ || 
>SET (CMAKE_INSTALL_DOCDIR "${EPREFIX}/usr/share/doc/${PF}" CACHE PATH "")
>SET (BUILD_SHARED_LIBS ON CACHE BOOLEAN "")
>_EOF_
> die;
>    fi
>    if [[ ${CMAKE_BUILD_TYPE} != Gentoo && ${EAPI} != 5 ]]; then
>        cat >> ${common_config} <<-_EOF_ || 
>SET (CMAKE_ASM_FLAGS_${CMAKE_BUILD_TYPE^^} "" CACHE STRING "")
>SET (CMAKE_ASM-ATT_FLAGS_${CMAKE_BUILD_TYPE^^} "" CACHE STRING "")
>SET (CMAKE_C_FLAGS_${CMAKE_BUILD_TYPE^^} "" CACHE STRING "")
>SET (CMAKE_CXX_FLAGS_${CMAKE_BUILD_TYPE^^} "" CACHE STRING "")
>SET (CMAKE_Fortran_FLAGS_${CMAKE_BUILD_TYPE^^} "" CACHE STRING "")
>SET (CMAKE_EXE_LINKER_FLAGS_${CMAKE_BUILD_TYPE^^} "" CACHE STRING "")
>SET (CMAKE_MODULE_LINKER_FLAGS_${CMAKE_BUILD_TYPE^^} "" CACHE STRING "")
>SET (CMAKE_SHARED_LINKER_FLAGS_${CMAKE_BUILD_TYPE^^} "" CACHE STRING "")
>SET (CMAKE_STATIC_LINKER_FLAGS_${CMAKE_BUILD_TYPE^^} "" CACHE STRING "")
>_EOF_
> die;
>    fi
>    local mycmakeargstype=$(declare -p mycmakeargs 2>&-);
>    if [[ "${mycmakeargstype}" != "declare -a mycmakeargs="* ]]; then
>        if [[ -n "${mycmakeargstype}" ]]; then
>            if [[ ${EAPI} == 5 ]]; then
>                eqawarn "Declaring mycmakeargs as a variable is deprecated. Please use an array instead.";
>            else
>                die "Declaring mycmakeargs as a variable is banned in EAPI=${EAPI}. Please use an array instead.";
>            fi;
>        fi;
>        local mycmakeargs_local=(${mycmakeargs});
>    else
>        local mycmakeargs_local=("${mycmakeargs[@]}");
>    fi;
>    if [[ ${CMAKE_WARN_UNUSED_CLI} == no ]]; then
>        local warn_unused_cli="--no-warn-unused-cli";
>    else
>        local warn_unused_cli="";
>    fi;
>    local cmakeargs=(${warn_unused_cli} -C "${common_config}" -G "$(_cmake_generator_to_use)" -DCMAKE_INSTALL_PREFIX="${EPREFIX}/usr" "${mycmakeargs_local[@]}" -DCMAKE_BUILD_TYPE="${CMAKE_BUILD_TYPE}" $([[ ${EAPI} == 5 ]] && echo -DCMAKE_INSTALL_DO_STRIP=OFF) -DCMAKE_TOOLCHAIN_FILE="${toolchain_file}" "${MYCMAKEARGS}");
>    if [[ -n "${CMAKE_EXTRA_CACHE_FILE}" ]]; then
>        cmakeargs+=(-C "${CMAKE_EXTRA_CACHE_FILE}");
>    fi;
>    pushd "${BUILD_DIR}" > /dev/null || die;
>    debug-print "${LINENO} ${ECLASS} ${FUNCNAME}: mycmakeargs is ${mycmakeargs_local[*]}";
>    echo "${CMAKE_BINARY}" "${cmakeargs[@]}" "${CMAKE_USE_DIR}";
>    "${CMAKE_BINARY}" "${cmakeargs[@]}" "${CMAKE_USE_DIR}" || die "cmake failed";
>    popd > /dev/null || die
>}
>cmake-utils_src_install () 
>{ 
>    debug-print-function ${FUNCNAME} "$@";
>    _cmake_check_build_dir;
>    pushd "${BUILD_DIR}" > /dev/null || die;
>    DESTDIR="${D}" ${CMAKE_MAKEFILE_GENERATOR} install "$@" || die "died running ${CMAKE_MAKEFILE_GENERATOR} install";
>    popd > /dev/null || die;
>    pushd "${S}" > /dev/null || die;
>    einstalldocs;
>    popd > /dev/null || die
>}
>cmake-utils_src_make () 
>{ 
>    debug-print-function ${FUNCNAME} "$@";
>    _cmake_check_build_dir;
>    pushd "${BUILD_DIR}" > /dev/null || die;
>    _cmake_${CMAKE_MAKEFILE_GENERATOR}_src_make "$@";
>    popd > /dev/null || die
>}
>cmake-utils_src_prepare () 
>{ 
>    debug-print-function ${FUNCNAME} "$@";
>    pushd "${S}" > /dev/null || die;
>    if [[ ${EAPI} != 5 ]]; then
>        default_src_prepare;
>        _cmake_cleanup_cmake;
>    else
>        debug-print "$FUNCNAME: PATCHES=$PATCHES";
>        [[ -n ${PATCHES[@]} ]] && epatch "${PATCHES[@]}";
>        debug-print "$FUNCNAME: applying user patches";
>        epatch_user;
>    fi;
>    popd > /dev/null || die;
>    if [[ -n ${CMAKE_UTILS_QA_SRC_DIR_READONLY} && ! -n ${CMAKE_IN_SOURCE_BUILD} ]]; then
>        chmod -R a-w "${S}";
>    fi;
>    _CMAKE_UTILS_SRC_PREPARE_HAS_RUN=1
>}
>cmake-utils_src_test () 
>{ 
>    debug-print-function ${FUNCNAME} "$@";
>    _cmake_check_build_dir;
>    pushd "${BUILD_DIR}" > /dev/null || die;
>    [[ -e CTestTestfile.cmake ]] || { 
>        echo "No tests found. Skipping.";
>        return 0
>    };
>    [[ -n ${TEST_VERBOSE} ]] && myctestargs+=(--extra-verbose --output-on-failure);
>    set -- ctest -j "$(makeopts_jobs)" --test-load "$(makeopts_loadavg)" "${myctestargs[@]}" "$@";
>    echo "$@" 1>&2;
>    if "$@"; then
>        einfo "Tests succeeded.";
>        popd > /dev/null || die;
>        return 0;
>    else
>        if [[ -n "${CMAKE_YES_I_WANT_TO_SEE_THE_TEST_LOG}" ]]; then
>            eerror "Tests failed. Test log ${BUILD_DIR}/Testing/Temporary/LastTest.log follows:";
>            eerror "--START TEST LOG--------------------------------------------------------------";
>            cat "${BUILD_DIR}/Testing/Temporary/LastTest.log";
>            eerror "--END TEST LOG----------------------------------------------------------------";
>            die "Tests failed.";
>        else
>            die "Tests failed. When you file a bug, please attach the following file: \n\t${BUILD_DIR}/Testing/Temporary/LastTest.log";
>        fi;
>        popd > /dev/null || die;
>        return 1;
>    fi
>}
>cmake-utils_use () 
>{ 
>    _cmake_use_me_now "" "$@"
>}
>cmake-utils_use_build () 
>{ 
>    _cmake_use_me_now BUILD_ "$@"
>}
>cmake-utils_use_disable () 
>{ 
>    _cmake_use_me_now_inverted DISABLE_ "$@"
>}
>cmake-utils_use_enable () 
>{ 
>    _cmake_use_me_now ENABLE_ "$@"
>}
>cmake-utils_use_find_package () 
>{ 
>    if [[ ${EAPI} != 5 && "$#" != 2 ]]; then
>        die "Usage: cmake-utils_use_find_package <USE flag> <package name>";
>    fi;
>    _cmake_use_me_now_inverted CMAKE_DISABLE_FIND_PACKAGE_ "$@"
>}
>cmake-utils_use_has () 
>{ 
>    _cmake_use_me_now HAVE_ "$@"
>}
>cmake-utils_use_no () 
>{ 
>    _cmake_use_me_now_inverted NO_ "$@"
>}
>cmake-utils_use_use () 
>{ 
>    _cmake_use_me_now USE_ "$@"
>}
>cmake-utils_use_want () 
>{ 
>    _cmake_use_me_now WANT_ "$@"
>}
>cmake-utils_use_with () 
>{ 
>    _cmake_use_me_now WITH_ "$@"
>}
>cmake-utils_useno () 
>{ 
>    _cmake_use_me_now_inverted "" "$@"
>}
>cmake_comment_add_subdirectory () 
>{ 
>    if [[ -z ${1} ]]; then
>        die "comment_add_subdirectory must be passed at least one directory name to comment";
>    fi;
>    if [[ -e "CMakeLists.txt" ]]; then
>        local d;
>        for d in $@;
>        do
>            sed -e "/add_subdirectory[[:space:]]*([[:space:]]*${d//\//\\/}[[:space:]]*)/I s/^/#DONOTCOMPILE /" -i CMakeLists.txt || die "failed to comment add_subdirectory(${d})";
>        done;
>    fi
>}
>comment_add_subdirectory () 
>{ 
>    [[ ${EAPI} == 5 ]] || die "comment_add_subdirectory is banned in EAPI 6 and later - use cmake_comment_add_subdirectory instead";
>    cmake_comment_add_subdirectory "$@"
>}
>doicon () 
>{ 
>    _iconins ${FUNCNAME} "$@"
>}
>domenu () 
>{ 
>    ( local i ret=0;
>    insopts -m 0644;
>    insinto /usr/share/applications;
>    for i in "$@";
>    do
>        if [[ -d ${i} ]]; then
>            doins "${i}"/*.desktop;
>            ((ret|=$?));
>        else
>            doins "${i}";
>            ((ret|=$?));
>        fi;
>    done;
>    exit ${ret} )
>}
>ebeep () 
>{ 
>    ewarn "QA Notice: ebeep is not defined in EAPI=${EAPI}, please file a bug at https://bugs.gentoo.org"
>}
>econf_build () 
>{ 
>    local CBUILD=${CBUILD:-${CHOST}};
>    tc-env_build econf --build=${CBUILD} --host=${CBUILD} "$@"
>}
>ecvs_clean () 
>{ 
>    [[ $# -eq 0 ]] && set -- .;
>    find "$@" '(' -type d -name 'CVS' -prune -o -type f -name '.cvs*' ')' -exec rm -rf '{}' +
>}
>edos2unix () 
>{ 
>    [[ $# -eq 0 ]] && return 0;
>    sed -i 's/\r$//' -- "$@" || die
>}
>egit_clean () 
>{ 
>    [[ $# -eq 0 ]] && set -- .;
>    find "$@" -type d -name '.git*' -prune -exec rm -rf '{}' +
>}
>einstalldocs () 
>{ 
>    debug-print-function ${FUNCNAME} "${@}";
>    local dodoc_opts=-r;
>    has ${EAPI} 0 1 2 3 && dodoc_opts=;
>    if ! declare -p DOCS &> /dev/null; then
>        local d;
>        for d in README* ChangeLog AUTHORS NEWS TODO CHANGES THANKS BUGS FAQ CREDITS CHANGELOG;
>        do
>            if [[ -s ${d} ]]; then
>                dodoc "${d}" || die;
>            fi;
>        done;
>    else
>        if [[ $(declare -p DOCS) == "declare -a"* ]]; then
>            if [[ -n ${DOCS[@]} ]]; then
>                dodoc ${dodoc_opts} "${DOCS[@]}" || die;
>            fi;
>        else
>            if [[ -n ${DOCS} ]]; then
>                dodoc ${dodoc_opts} ${DOCS} || die;
>            fi;
>        fi;
>    fi;
>    if [[ $(declare -p HTML_DOCS 2>/dev/null) == "declare -a"* ]]; then
>        if [[ -n ${HTML_DOCS[@]} ]]; then
>            dohtml -r "${HTML_DOCS[@]}" || die;
>        fi;
>    else
>        if [[ -n ${HTML_DOCS} ]]; then
>            dohtml -r ${HTML_DOCS} || die;
>        fi;
>    fi;
>    return 0
>}
>emktemp () 
>{ 
>    local exe="touch";
>    [[ $1 == -d ]] && exe="mkdir" && shift;
>    local topdir=$1;
>    if [[ -z ${topdir} ]]; then
>        [[ -z ${T} ]] && topdir="/tmp" || topdir=${T};
>    fi;
>    if ! type -P mktemp > /dev/null; then
>        local tmp=/;
>        while [[ -e ${tmp} ]]; do
>            tmp=${topdir}/tmp.${RANDOM}.${RANDOM}.${RANDOM};
>        done;
>        ${exe} "${tmp}" || ${exe} -p "${tmp}";
>        echo "${tmp}";
>    else
>        if [[ ${exe} == "touch" ]]; then
>            TMPDIR="${topdir}" mktemp -t tmp.XXXXXXXXXX;
>        else
>            TMPDIR="${topdir}" mktemp -dt tmp.XXXXXXXXXX;
>        fi;
>    fi
>}
>eninja () 
>{ 
>    local nonfatal_args=();
>    [[ ${EAPI:-0} != [245] ]] && nonfatal_args+=(-n);
>    if [[ -z ${NINJAOPTS+set} ]]; then
>        NINJAOPTS="-j$(makeopts_jobs) -l$(makeopts_loadavg "${MAKEOPTS}" 0)";
>    fi;
>    set -- ninja -v ${NINJAOPTS} "$@";
>    echo "$@" 1>&2;
>    "$@" || die "${nonfatal_args[@]}" "${*} failed"
>}
>epatch () 
>{ 
>    function _epatch_draw_line () 
>    { 
>        [[ -z $1 ]] && set "$(printf "%65s" '')";
>        echo "${1//?/=}"
>    };
>    unset P4CONFIG P4PORT P4USER;
>    local EPATCH_OPTS=(${EPATCH_OPTS[*]});
>    while [[ $# -gt 0 ]]; do
>        case $1 in 
>            -*)
>                EPATCH_OPTS+=("$1")
>            ;;
>            *)
>                break
>            ;;
>        esac;
>        shift;
>    done;
>    if [[ $# -gt 1 ]]; then
>        local m;
>        for m in "$@";
>        do
>            epatch "${m}";
>        done;
>        return 0;
>    fi;
>    local SINGLE_PATCH="no";
>    [[ $# -eq 0 ]] && set -- "${EPATCH_SOURCE}";
>    if [[ -f $1 ]]; then
>        SINGLE_PATCH="yes";
>        set -- "$1";
>        local EPATCH_SUFFIX=$1;
>    else
>        if [[ -d $1 ]]; then
>            evar_push_set LC_COLLATE C;
>            set -- "$1"/*${EPATCH_SUFFIX:+."${EPATCH_SUFFIX}"};
>            evar_pop;
>        else
>            if [[ -f ${EPATCH_SOURCE}/$1 ]]; then
>                epatch "${EPATCH_SOURCE}/$1";
>                return $?;
>            else
>                [[ $# -ne 0 ]] && EPATCH_SOURCE=$1;
>                echo;
>                eerror "Cannot find \$EPATCH_SOURCE!  Value for \$EPATCH_SOURCE is:";
>                eerror;
>                eerror "  ${EPATCH_SOURCE}";
>                eerror "  ( ${EPATCH_SOURCE##*/} )";
>                echo;
>                die "Cannot find \$EPATCH_SOURCE!";
>            fi;
>        fi;
>    fi;
>    EPATCH_OPTS="${EPATCH_COMMON_OPTS} ${EPATCH_OPTS[*]}";
>    local PIPE_CMD;
>    case ${EPATCH_SUFFIX##*\.} in 
>        xz)
>            PIPE_CMD="xz -dc"
>        ;;
>        lzma)
>            PIPE_CMD="lzma -dc"
>        ;;
>        bz2)
>            PIPE_CMD="bzip2 -dc"
>        ;;
>        gz | Z | z)
>            PIPE_CMD="gzip -dc"
>        ;;
>        ZIP | zip)
>            PIPE_CMD="unzip -p"
>        ;;
>        *)
>
>        ;;
>    esac;
>    [[ ${SINGLE_PATCH} == "no" ]] && einfo "${EPATCH_MULTI_MSG}";
>    local x;
>    for x in "$@";
>    do
>        [[ ! -f ${x} ]] && continue;
>        local patchname=${x##*/};
>        local a=${patchname#*_};
>        a=${a%%_*};
>        if ! [[ ${SINGLE_PATCH} == "yes" || ${EPATCH_FORCE} == "yes" || ${a} == all || ${a} == ${ARCH} ]]; then
>            continue;
>        fi;
>        if [[ -n ${EPATCH_EXCLUDE}${EPATCH_USER_EXCLUDE} ]]; then
>            local prev_noglob=$(shopt -p -o noglob);
>            set -o noglob;
>            local ex;
>            for ex in ${EPATCH_EXCLUDE};
>            do
>                if [[ ${patchname} == ${ex} ]]; then
>                    einfo "  Skipping ${patchname} due to EPATCH_EXCLUDE ...";
>                    ${prev_noglob};
>                    continue 2;
>                fi;
>            done;
>            for ex in ${EPATCH_USER_EXCLUDE};
>            do
>                if [[ ${patchname} == ${ex} ]]; then
>                    einfo "  Skipping ${patchname} due to EPATCH_USER_EXCLUDE ...";
>                    ${prev_noglob};
>                    continue 2;
>                fi;
>            done;
>            ${prev_noglob};
>        fi;
>        if [[ ${SINGLE_PATCH} == "yes" ]]; then
>            if [[ -n ${EPATCH_SINGLE_MSG} ]]; then
>                einfo "${EPATCH_SINGLE_MSG}";
>            else
>                einfo "Applying ${patchname} ...";
>            fi;
>        else
>            einfo "  ${patchname} ...";
>        fi;
>        local patch="patch";
>        eval $(alias patch 2>/dev/null | sed 's:^alias ::');
>        local STDERR_TARGET="${T}/${patchname}.out";
>        if [[ -e ${STDERR_TARGET} ]]; then
>            STDERR_TARGET="${T}/${patchname}-$$.out";
>        fi;
>        printf "***** %s *****\nPWD: %s\nPATCH TOOL: %s -> %s\nVERSION INFO:\n%s\n\n" "${patchname}" "${PWD}" "${patch}" "$(type -P "${patch}")" "$(${patch} --version)" > "${STDERR_TARGET}";
>        local count=0;
>        local PATCH_TARGET;
>        if [[ -n ${PIPE_CMD} ]]; then
>            PATCH_TARGET="${T}/$$.patch";
>            echo "PIPE_COMMAND:  ${PIPE_CMD} ${x} > ${PATCH_TARGET}" >> "${STDERR_TARGET}";
>            if ! ( ${PIPE_CMD} "${x}" > "${PATCH_TARGET}" ) >> "${STDERR_TARGET}" 2>&1; then
>                echo;
>                eerror "Could not extract patch!";
>                count=5;
>                break;
>            fi;
>        else
>            PATCH_TARGET=${x};
>        fi;
>        local abs_paths=$(egrep -n '^[-+]{3} /' "${PATCH_TARGET}" | awk '$2 != "/dev/null" { print }');
>        if [[ -n ${abs_paths} ]]; then
>            count=1;
>            printf "NOTE: skipping -p0 due to absolute paths in patch:\n%s\n" "${abs_paths}" >> "${STDERR_TARGET}";
>        fi;
>        local rel_paths=$(egrep -n '^[-+]{3} [^	]*[.][.]/' "${PATCH_TARGET}");
>        if [[ -n ${rel_paths} ]]; then
>            echo;
>            eerror "Rejected Patch: ${patchname} !";
>            eerror " ( ${PATCH_TARGET} )";
>            eerror;
>            eerror "Your patch uses relative paths '../':";
>            eerror "${rel_paths}";
>            echo;
>            die "you need to fix the relative paths in patch";
>        fi;
>        local patch_cmd;
>        while [[ ${count} -lt 5 ]]; do
>            patch_cmd="${patch} -p${count} ${EPATCH_OPTS}";
>            ( _epatch_draw_line "***** ${patchname} *****";
>            echo;
>            echo "PATCH COMMAND:  ${patch_cmd} --dry-run -f < '${PATCH_TARGET}'";
>            echo;
>            _epatch_draw_line "***** ${patchname} *****";
>            ${patch_cmd} --dry-run -f < "${PATCH_TARGET}" 2>&1;
>            ret=$?;
>            echo;
>            echo "patch program exited with status ${ret}";
>            exit ${ret} ) >> "${STDERR_TARGET}";
>            if [ $? -eq 0 ]; then
>                ( _epatch_draw_line "***** ${patchname} *****";
>                echo;
>                echo "ACTUALLY APPLYING ${patchname} ...";
>                echo "PATCH COMMAND:  ${patch_cmd} < '${PATCH_TARGET}'";
>                echo;
>                _epatch_draw_line "***** ${patchname} *****";
>                ${patch_cmd} < "${PATCH_TARGET}" 2>&1;
>                ret=$?;
>                echo;
>                echo "patch program exited with status ${ret}";
>                exit ${ret} ) >> "${STDERR_TARGET}";
>                if [ $? -ne 0 ]; then
>                    echo;
>                    eerror "A dry-run of patch command succeeded, but actually";
>                    eerror "applying the patch failed!";
>                    count=5;
>                fi;
>                break;
>            fi;
>            : $(( count++ ));
>        done;
>        (( EPATCH_N_APPLIED_PATCHES++ ));
>        if [[ -n ${PIPE_CMD} ]]; then
>            rm -f "${PATCH_TARGET}";
>        fi;
>        if [[ ${count} -ge 5 ]]; then
>            echo;
>            eerror "Failed Patch: ${patchname} !";
>            eerror " ( ${PATCH_TARGET} )";
>            eerror;
>            eerror "Include in your bugreport the contents of:";
>            eerror;
>            eerror "  ${STDERR_TARGET}";
>            echo;
>            die "Failed Patch: ${patchname}!";
>        fi;
>        rm -f "${STDERR_TARGET}";
>        cat <<-EOF >> "${T}/epatch.log"
>PATCH: ${x}
>CMD: ${patch_cmd}
>PWD: ${PWD}
>
>EOF
>
>        eend 0;
>    done;
>    [[ ${SINGLE_PATCH} == "no" ]] && einfo "Done with patching";
>    :
>}
>epatch_user () 
>{ 
>    [[ $# -ne 0 ]] && die "epatch_user takes no options";
>    local applied="${T}/epatch_user.log";
>    [[ -e ${applied} ]] && return 2;
>    local EPATCH_SOURCE check;
>    for check in ${CATEGORY}/{${P}-${PR},${P},${PN}}{,:${SLOT%/*}};
>    do
>        EPATCH_SOURCE=${EPATCH_USER_SOURCE}/${CTARGET}/${check};
>        [[ -r ${EPATCH_SOURCE} ]] || EPATCH_SOURCE=${EPATCH_USER_SOURCE}/${CHOST}/${check};
>        [[ -r ${EPATCH_SOURCE} ]] || EPATCH_SOURCE=${EPATCH_USER_SOURCE}/${check};
>        if [[ -d ${EPATCH_SOURCE} ]]; then
>            local old_n_applied_patches=${EPATCH_N_APPLIED_PATCHES:-0};
>            EPATCH_SOURCE=${EPATCH_SOURCE} EPATCH_SUFFIX="patch" EPATCH_FORCE="yes" EPATCH_MULTI_MSG="Applying user patches from ${EPATCH_SOURCE} ..." epatch;
>            echo "${EPATCH_SOURCE}" > "${applied}";
>            if [[ ${old_n_applied_patches} -lt ${EPATCH_N_APPLIED_PATCHES} ]]; then
>                has epatch_user_death_notice ${EBUILD_DEATH_HOOKS} || EBUILD_DEATH_HOOKS+=" epatch_user_death_notice";
>            fi;
>            return 0;
>        fi;
>    done;
>    echo "none" > "${applied}";
>    return 1
>}
>epatch_user_death_notice () 
>{ 
>    ewarn "!!! User patches were applied to this build!"
>}
>epause () 
>{ 
>    ewarn "QA Notice: epause is not defined in EAPI=${EAPI}, please file a bug at https://bugs.gentoo.org"
>}
>eshopts_pop () 
>{ 
>    local s;
>    estack_pop eshopts s || die "${FUNCNAME}: unbalanced push";
>    eval "${s}" || die "${FUNCNAME}: sanity: invalid shopt options: ${s}"
>}
>eshopts_push () 
>{ 
>    if [[ $1 == -[su] ]]; then
>        estack_push eshopts "$(shopt -p)";
>        [[ $# -eq 0 ]] && return 0;
>        shopt "$@" || die "${FUNCNAME}: bad options to shopt: $*";
>    else
>        estack_push eshopts "$(shopt -p -o)";
>        [[ $# -eq 0 ]] && return 0;
>        set "$@" || die "${FUNCNAME}: bad options to set: $*";
>    fi
>}
>estack_pop () 
>{ 
>    [[ $# -eq 0 || $# -gt 2 ]] && die "estack_pop: incorrect # of arguments";
>    local _estack_name="_ESTACK_$1_";
>    shift;
>    local _estack_retvar=$1;
>    shift;
>    eval local _estack_i=\${#${_estack_name}\[@\]};
>    [[ $(( --_estack_i )) -eq -1 ]] && return 1;
>    if [[ -n ${_estack_retvar} ]]; then
>        eval ${_estack_retvar}=\"\${${_estack_name}\[${_estack_i}\]}\";
>    fi;
>    eval unset \"${_estack_name}\[${_estack_i}\]\"
>}
>estack_push () 
>{ 
>    [[ $# -eq 0 ]] && die "estack_push: incorrect # of arguments";
>    local stack_name="_ESTACK_$1_";
>    shift;
>    eval ${stack_name}+=$ \"\$@\" $
>}
>esvn_clean () 
>{ 
>    [[ $# -eq 0 ]] && set -- .;
>    find "$@" -type d -name '.svn' -prune -exec rm -rf '{}' +
>}
>eumask_pop () 
>{ 
>    [[ $# -eq 0 ]] || die "${FUNCNAME}: we take no options";
>    local s;
>    estack_pop eumask s || die "${FUNCNAME}: unbalanced push";
>    umask ${s} || die "${FUNCNAME}: sanity: could not restore umask: ${s}"
>}
>eumask_push () 
>{ 
>    estack_push eumask "$(umask)";
>    umask "$@" || die "${FUNCNAME}: bad options to umask: $*"
>}
>evar_pop () 
>{ 
>    local cnt=${1:-bad};
>    case $# in 
>        0)
>            cnt=1
>        ;;
>        1)
>            isdigit "${cnt}" || die "${FUNCNAME}: first arg must be a number: $*"
>        ;;
>        *)
>            die "${FUNCNAME}: only accepts one arg: $*"
>        ;;
>    esac;
>    local var val;
>    while (( cnt-- )); do
>        estack_pop evar val || die "${FUNCNAME}: unbalanced push";
>        estack_pop evar var || die "${FUNCNAME}: unbalanced push";
>        [[ ${val} == "unset_76fc3c462065bb4ca959f939e6793f94" ]] && unset ${var} || printf -v "${var}" '%s' "${val}";
>    done
>}
>evar_push () 
>{ 
>    local var val;
>    for var in "$@";
>    do
>        [[ ${!var+set} == "set" ]] && val=${!var} || val="unset_76fc3c462065bb4ca959f939e6793f94";
>        estack_push evar "${var}" "${val}";
>    done
>}
>evar_push_set () 
>{ 
>    local var=$1;
>    evar_push ${var};
>    case $# in 
>        1)
>            unset ${var}
>        ;;
>        2)
>            printf -v "${var}" '%s' "$2"
>        ;;
>        *)
>            die "${FUNCNAME}: incorrect # of args: $*"
>        ;;
>    esac
>}
>filter-flags () 
>{ 
>    _filter-hardened "$@";
>    local v;
>    for v in $(all-flag-vars);
>    do
>        _filter-var ${v} "$@";
>    done;
>    return 0
>}
>filter-ldflags () 
>{ 
>    _filter-var LDFLAGS "$@";
>    return 0
>}
>filter-lfs-flags () 
>{ 
>    [[ $# -ne 0 ]] && die "filter-lfs-flags takes no arguments";
>    filter-flags -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE
>}
>filter-mfpmath () 
>{ 
>    local orig_mfpmath new_math prune_math;
>    orig_mfpmath=$(get-flag -mfpmath);
>    new_math=$(get-flag mfpmath);
>    new_math=${new_math/both/387,sse};
>    new_math=" ${new_math//[,+]/ } ";
>    prune_math="";
>    for prune_math in "$@";
>    do
>        new_math=${new_math/ ${prune_math} / };
>    done;
>    new_math=$(echo ${new_math});
>    new_math=${new_math// /,};
>    if [[ -z ${new_math} ]]; then
>        filter-flags ${orig_mfpmath};
>    else
>        replace-flags ${orig_mfpmath} -mfpmath=${new_math};
>    fi;
>    return 0
>}
>gcc-fullversion () 
>{ 
>    _gcc_fullversion '$1.$2.$3' "$@"
>}
>gcc-major-version () 
>{ 
>    _gcc_fullversion '$1' "$@"
>}
>gcc-micro-version () 
>{ 
>    _gcc_fullversion '$3' "$@"
>}
>gcc-minor-version () 
>{ 
>    _gcc_fullversion '$2' "$@"
>}
>gcc-specs-directive () 
>{ 
>    local directive subdname subdirective;
>    directive="$(_gcc-specs-directive_raw $1)";
>    while [[ ${directive} == *%$*$* ]]; do
>        subdname=${directive/*%$};
>        subdname=${subdname/$*};
>        subdirective="$(_gcc-specs-directive_raw ${subdname})";
>        directive="${directive//\%(${subdname})/${subdirective}}";
>    done;
>    echo "${directive}";
>    return 0
>}
>gcc-specs-nostrict () 
>{ 
>    local directive;
>    directive=$(gcc-specs-directive cc1);
>    [[ "${directive/\{!fstrict-overflow:}" != "${directive}" ]]
>}
>gcc-specs-now () 
>{ 
>    local directive;
>    directive=$(gcc-specs-directive link_command);
>    [[ "${directive/\{!nonow:}" != "${directive}" ]]
>}
>gcc-specs-pie () 
>{ 
>    local directive;
>    directive=$(gcc-specs-directive cc1);
>    [[ "${directive/\{!nopie:}" != "${directive}" ]]
>}
>gcc-specs-relro () 
>{ 
>    local directive;
>    directive=$(gcc-specs-directive link_command);
>    [[ "${directive/\{!norelro:}" != "${directive}" ]]
>}
>gcc-specs-ssp () 
>{ 
>    local directive;
>    directive=$(gcc-specs-directive cc1);
>    [[ "${directive/\{!fno-stack-protector:}" != "${directive}" ]]
>}
>gcc-specs-ssp-to-all () 
>{ 
>    local directive;
>    directive=$(gcc-specs-directive cc1);
>    [[ "${directive/\{!fno-stack-protector-all:}" != "${directive}" ]]
>}
>gcc-specs-stack-check () 
>{ 
>    local directive;
>    directive=$(gcc-specs-directive cc1);
>    [[ "${directive/\{!fno-stack-check:}" != "${directive}" ]]
>}
>gcc-version () 
>{ 
>    _gcc_fullversion '$1.$2' "$@"
>}
>gen_usr_ldscript () 
>{ 
>    ewarn "${FUNCNAME}: Please migrate to usr-ldscript.eclass";
>    local lib libdir=$(get_libdir) output_format="" auto=false suffix=$(get_libname);
>    [[ -z ${ED+set} ]] && local ED=${D%/}${EPREFIX}/;
>    tc-is-static-only && return;
>    if [[ $(type -t multilib_is_native_abi) == "function" ]]; then
>        multilib_is_native_abi || return 0;
>    fi;
>    case ${CTARGET:-${CHOST}} in 
>        *-darwin*)
>
>        ;;
>        *-android*)
>            return 0
>        ;;
>        *linux* | *-freebsd* | *-openbsd* | *-netbsd*)
>            use prefix && return 0
>        ;;
>        *)
>            return 0
>        ;;
>    esac;
>    dodir /usr/${libdir};
>    if [[ $1 == "-a" ]]; then
>        auto=true;
>        shift;
>        dodir /${libdir};
>    fi;
>    local flags=(${CFLAGS} ${LDFLAGS} -Wl,--verbose);
>    if $(tc-getLD) --version | grep -q 'GNU gold'; then
>        local d="${T}/bfd-linker";
>        mkdir -p "${d}";
>        ln -sf $(which ${CHOST}-ld.bfd) "${d}"/ld;
>        flags+=(-B"${d}");
>    fi;
>    output_format=$($(tc-getCC) "${flags[@]}" 2>&1 | sed -n 's/^OUTPUT_FORMAT("$[^"]*$",.*/\1/p');
>    [[ -n ${output_format} ]] && output_format="OUTPUT_FORMAT ( ${output_format} )";
>    for lib in "$@";
>    do
>        local tlib;
>        if ${auto}; then
>            lib="lib${lib}${suffix}";
>        else
>            [[ -r ${ED}/${libdir}/${lib} ]] || continue;
>        fi;
>        case ${CTARGET:-${CHOST}} in 
>            *-darwin*)
>                if ${auto}; then
>                    tlib=$(scanmacho -qF'%S#F' "${ED}"/usr/${libdir}/${lib});
>                else
>                    tlib=$(scanmacho -qF'%S#F' "${ED}"/${libdir}/${lib});
>                fi;
>                [[ -z ${tlib} ]] && die "unable to read install_name from ${lib}";
>                tlib=${tlib##*/};
>                if ${auto}; then
>                    mv "${ED}"/usr/${libdir}/${lib%${suffix}}.*${suffix#.} "${ED}"/${libdir}/ || die;
>                    if [[ ${tlib} != ${lib%${suffix}}.*${suffix#.} ]]; then
>                        mv "${ED}"/usr/${libdir}/${tlib%${suffix}}.*${suffix#.} "${ED}"/${libdir}/ || die;
>                    fi;
>                    rm -f "${ED}"/${libdir}/${lib};
>                fi;
>                if [[ ! -w "${ED}/${libdir}/${tlib}" ]]; then
>                    chmod u+w "${ED}${libdir}/${tlib}";
>                    local nowrite=yes;
>                fi;
>                install_name_tool -id "${EPREFIX}"/${libdir}/${tlib} "${ED}"/${libdir}/${tlib} || die "install_name_tool failed";
>                [[ -n ${nowrite} ]] && chmod u-w "${ED}${libdir}/${tlib}";
>                pushd "${ED}/usr/${libdir}" > /dev/null;
>                ln -snf "../../${libdir}/${tlib}" "${lib}";
>                popd > /dev/null
>            ;;
>            *)
>                if ${auto}; then
>                    tlib=$(scanelf -qF'%S#F' "${ED}"/usr/${libdir}/${lib});
>                    [[ -z ${tlib} ]] && die "unable to read SONAME from ${lib}";
>                    mv "${ED}"/usr/${libdir}/${lib}* "${ED}"/${libdir}/ || die;
>                    if [[ ${tlib} != ${lib}* ]]; then
>                        mv "${ED}"/usr/${libdir}/${tlib}* "${ED}"/${libdir}/ || die;
>                    fi;
>                    rm -f "${ED}"/${libdir}/${lib};
>                else
>                    tlib=${lib};
>                fi;
>                cat > "${ED}/usr/${libdir}/${lib}" <<-END_LDSCRIPT
>/* GNU ld script
>   Since Gentoo has critical dynamic libraries in /lib, and the static versions
>   in /usr/lib, we need to have a "fake" dynamic lib in /usr/lib, otherwise we
>   run into linking problems.  This "fake" dynamic lib is a linker script that
>   redirects the linker to the real lib.  And yes, this works in the cross-
>   compiling scenario as the sysroot-ed linker will prepend the real path.
>
>   See bug https://bugs.gentoo.org/4411 for more info.
> */
>${output_format}
>GROUP ( ${EPREFIX}/${libdir}/${tlib} )
>END_LDSCRIPT
>
>            ;;
>        esac
>        fperms a+x "/usr/${libdir}/${lib}" || die "could not change perms on ${lib}";
>    done
>}
>get-flag () 
>{ 
>    local f var findflag="$1";
>    for var in $(all-flag-vars);
>    do
>        for f in ${!var};
>        do
>            if [ "${f/${findflag}}" != "${f}" ]; then
>                printf "%s\n" "${f/-${findflag}=}";
>                return 0;
>            fi;
>        done;
>    done;
>    return 1
>}
>get_abi_CFLAGS () 
>{ 
>    get_abi_var CFLAGS "$@"
>}
>get_abi_CHOST () 
>{ 
>    get_abi_var CHOST "$@"
>}
>get_abi_CTARGET () 
>{ 
>    get_abi_var CTARGET "$@"
>}
>get_abi_FAKE_TARGETS () 
>{ 
>    get_abi_var FAKE_TARGETS "$@"
>}
>get_abi_LDFLAGS () 
>{ 
>    get_abi_var LDFLAGS "$@"
>}
>get_abi_LIBDIR () 
>{ 
>    get_abi_var LIBDIR "$@"
>}
>get_abi_var () 
>{ 
>    local flag=$1;
>    local abi=${2:-${ABI:-${DEFAULT_ABI:-default}}};
>    local var="${flag}_${abi}";
>    echo ${!var}
>}
>get_all_abis () 
>{ 
>    local x order="" mvar dvar;
>    mvar="MULTILIB_ABIS";
>    dvar="DEFAULT_ABI";
>    if [[ -n $1 ]]; then
>        mvar="$1_${mvar}";
>        dvar="$1_${dvar}";
>    fi;
>    if [[ -z ${!mvar} ]]; then
>        echo "default";
>        return 0;
>    fi;
>    for x in ${!mvar};
>    do
>        if [[ ${x} != ${!dvar} ]]; then
>            order="${order:+${order} }${x}";
>        fi;
>    done;
>    order="${order:+${order} }${!dvar}";
>    echo ${order};
>    return 0
>}
>get_all_libdirs () 
>{ 
>    local libdirs abi;
>    for abi in ${MULTILIB_ABIS};
>    do
>        libdirs+=" $(get_abi_LIBDIR ${abi})";
>    done;
>    [[ " ${libdirs} " != *" lib "* ]] && libdirs+=" lib";
>    echo "${libdirs}"
>}
>get_exeext () 
>{ 
>    case ${CHOST} in 
>        *-cygwin* | mingw* | *-mingw*)
>            echo ".exe"
>        ;;
>    esac
>}
>get_install_abis () 
>{ 
>    local x order="";
>    if [[ -z ${MULTILIB_ABIS} ]]; then
>        echo "default";
>        return 0;
>    fi;
>    if [[ ${EMULTILIB_PKG} == "true" ]]; then
>        for x in ${MULTILIB_ABIS};
>        do
>            if [[ ${x} != "${DEFAULT_ABI}" ]]; then
>                has ${x} ${ABI_DENY} || order="${order} ${x}";
>            fi;
>        done;
>        has ${DEFAULT_ABI} ${ABI_DENY} || order="${order} ${DEFAULT_ABI}";
>        if [[ -n ${ABI_ALLOW} ]]; then
>            local ordera="";
>            for x in ${order};
>            do
>                if has ${x} ${ABI_ALLOW}; then
>                    ordera="${ordera} ${x}";
>                fi;
>            done;
>            order=${ordera};
>        fi;
>    else
>        order=${DEFAULT_ABI};
>    fi;
>    if [[ -z ${order} ]]; then
>        die "The ABI list is empty.  Are you using a proper multilib profile?  Perhaps your USE flags or MULTILIB_ABIS are too restrictive for this package.";
>    fi;
>    echo ${order};
>    return 0
>}
>get_libdir () 
>{ 
>    local CONF_LIBDIR;
>    if [ -n "${CONF_LIBDIR_OVERRIDE}" ]; then
>        echo ${CONF_LIBDIR_OVERRIDE};
>    else
>        get_abi_LIBDIR;
>    fi
>}
>get_libname () 
>{ 
>    local libname;
>    local ver=$1;
>    case ${CHOST} in 
>        *-cygwin*)
>            libname="dll.a"
>        ;;
>        mingw* | *-mingw*)
>            libname="dll"
>        ;;
>        *-darwin*)
>            libname="dylib"
>        ;;
>        *-mint*)
>            libname="irrelevant"
>        ;;
>        hppa*-hpux*)
>            libname="sl"
>        ;;
>        *)
>            libname="so"
>        ;;
>    esac;
>    if [[ -z $* ]]; then
>        echo ".${libname}";
>    else
>        for ver in "$@";
>        do
>            case ${CHOST} in 
>                *-cygwin*)
>                    echo ".${ver}.${libname}"
>                ;;
>                *-darwin*)
>                    echo ".${ver}.${libname}"
>                ;;
>                *-mint*)
>                    echo ".${libname}"
>                ;;
>                *)
>                    echo ".${libname}.${ver}"
>                ;;
>            esac;
>        done;
>    fi
>}
>get_modname () 
>{ 
>    local modname;
>    local ver=$1;
>    case ${CHOST} in 
>        *-darwin*)
>            modname="bundle"
>        ;;
>        *)
>            modname="so"
>        ;;
>    esac;
>    echo ".${modname}"
>}
>get_nproc () 
>{ 
>    local nproc;
>    if type -P nproc &> /dev/null; then
>        nproc=$(nproc);
>    fi;
>    if [[ -z ${nproc} ]] && type -P sysctl &> /dev/null; then
>        nproc=$(sysctl -n hw.ncpu 2>/dev/null);
>    fi;
>    if [[ -z ${nproc} ]] && type -P python &> /dev/null; then
>        nproc=$(python -c 'import multiprocessing; print(multiprocessing.cpu_count());' 2>/dev/null);
>    fi;
>    if [[ -n ${nproc} ]]; then
>        echo "${nproc}";
>    else
>        echo "${1:-1}";
>    fi
>}
>has_m32 () 
>{ 
>    die "${FUNCNAME}: don't use this anymore"
>}
>has_m64 () 
>{ 
>    die "${FUNCNAME}: don't use this anymore"
>}
>has_multilib_profile () 
>{ 
>    [ -n "${MULTILIB_ABIS}" -a "${MULTILIB_ABIS}" != "${MULTILIB_ABIS/ /}" ]
>}
>in_iuse () 
>{ 
>    debug-print-function ${FUNCNAME} "${@}";
>    [[ ${#} -eq 1 ]] || die "Invalid args to ${FUNCNAME}()";
>    local flag=${1};
>    local liuse=(${IUSE});
>    has "${flag}" "${liuse[@]#[+-]}"
>}
>is-flag () 
>{ 
>    is-flagq "$@" && echo true
>}
>is-flagq () 
>{ 
>    [[ -n $2 ]] && die "Usage: is-flag <flag>";
>    local var;
>    for var in $(all-flag-vars);
>    do
>        _is_flagq ${var} "$1" && return 0;
>    done;
>    return 1
>}
>is-ldflag () 
>{ 
>    is-ldflagq "$@" && echo true
>}
>is-ldflagq () 
>{ 
>    [[ -n $2 ]] && die "Usage: is-ldflag <flag>";
>    _is_flagq LDFLAGS $1
>}
>is_final_abi () 
>{ 
>    has_multilib_profile || return 0;
>    set -- $(get_install_abis);
>    local LAST_ABI=$#;
>    [[ ${!LAST_ABI} == ${ABI} ]]
>}
>isdigit () 
>{ 
>    local d;
>    for d in "$@";
>    do
>        [[ ${d:-bad} == *[!0-9]* ]] && return 1;
>    done;
>    return 0
>}
>make_desktop_entry () 
>{ 
>    [[ -z $1 ]] && die "make_desktop_entry: You must specify the executable";
>    local exec=${1};
>    local name=${2:-${PN}};
>    local icon=${3:-${PN}};
>    local type=${4};
>    local fields=${5};
>    if [[ -z ${type} ]]; then
>        local catmaj=${CATEGORY%%-*};
>        local catmin=${CATEGORY##*-};
>        case ${catmaj} in 
>            app)
>                case ${catmin} in 
>                    accessibility)
>                        type="Utility;Accessibility"
>                    ;;
>                    admin)
>                        type=System
>                    ;;
>                    antivirus)
>                        type=System
>                    ;;
>                    arch)
>                        type="Utility;Archiving"
>                    ;;
>                    backup)
>                        type="Utility;Archiving"
>                    ;;
>                    cdr)
>                        type="AudioVideo;DiscBurning"
>                    ;;
>                    dicts)
>                        type="Office;Dictionary"
>                    ;;
>                    doc)
>                        type=Documentation
>                    ;;
>                    editors)
>                        type="Utility;TextEditor"
>                    ;;
>                    emacs)
>                        type="Development;TextEditor"
>                    ;;
>                    emulation)
>                        type="System;Emulator"
>                    ;;
>                    laptop)
>                        type="Settings;HardwareSettings"
>                    ;;
>                    office)
>                        type=Office
>                    ;;
>                    pda)
>                        type="Office;PDA"
>                    ;;
>                    vim)
>                        type="Development;TextEditor"
>                    ;;
>                    xemacs)
>                        type="Development;TextEditor"
>                    ;;
>                esac
>            ;;
>            dev)
>                type="Development"
>            ;;
>            games)
>                case ${catmin} in 
>                    action | fps)
>                        type=ActionGame
>                    ;;
>                    arcade)
>                        type=ArcadeGame
>                    ;;
>                    board)
>                        type=BoardGame
>                    ;;
>                    emulation)
>                        type=Emulator
>                    ;;
>                    kids)
>                        type=KidsGame
>                    ;;
>                    puzzle)
>                        type=LogicGame
>                    ;;
>                    roguelike)
>                        type=RolePlaying
>                    ;;
>                    rpg)
>                        type=RolePlaying
>                    ;;
>                    simulation)
>                        type=Simulation
>                    ;;
>                    sports)
>                        type=SportsGame
>                    ;;
>                    strategy)
>                        type=StrategyGame
>                    ;;
>                esac;
>                type="Game;${type}"
>            ;;
>            gnome)
>                type="Gnome;GTK"
>            ;;
>            kde)
>                type="KDE;Qt"
>            ;;
>            mail)
>                type="Network;Email"
>            ;;
>            media)
>                case ${catmin} in 
>                    gfx)
>                        type=Graphics
>                    ;;
>                    *)
>                        case ${catmin} in 
>                            radio)
>                                type=Tuner
>                            ;;
>                            sound)
>                                type=Audio
>                            ;;
>                            tv)
>                                type=TV
>                            ;;
>                            video)
>                                type=Video
>                            ;;
>                        esac;
>                        type="AudioVideo;${type}"
>                    ;;
>                esac
>            ;;
>            net)
>                case ${catmin} in 
>                    dialup)
>                        type=Dialup
>                    ;;
>                    ftp)
>                        type=FileTransfer
>                    ;;
>                    im)
>                        type=InstantMessaging
>                    ;;
>                    irc)
>                        type=IRCClient
>                    ;;
>                    mail)
>                        type=Email
>                    ;;
>                    news)
>                        type=News
>                    ;;
>                    nntp)
>                        type=News
>                    ;;
>                    p2p)
>                        type=FileTransfer
>                    ;;
>                    voip)
>                        type=Telephony
>                    ;;
>                esac;
>                type="Network;${type}"
>            ;;
>            sci)
>                case ${catmin} in 
>                    astro*)
>                        type=Astronomy
>                    ;;
>                    bio*)
>                        type=Biology
>                    ;;
>                    calc*)
>                        type=Calculator
>                    ;;
>                    chem*)
>                        type=Chemistry
>                    ;;
>                    elec*)
>                        type=Electronics
>                    ;;
>                    geo*)
>                        type=Geology
>                    ;;
>                    math*)
>                        type=Math
>                    ;;
>                    physics)
>                        type=Physics
>                    ;;
>                    visual*)
>                        type=DataVisualization
>                    ;;
>                esac;
>                type="Education;Science;${type}"
>            ;;
>            sys)
>                type="System"
>            ;;
>            www)
>                case ${catmin} in 
>                    client)
>                        type=WebBrowser
>                    ;;
>                esac;
>                type="Network;${type}"
>            ;;
>            *)
>                type=
>            ;;
>        esac;
>    fi;
>    local slot=${SLOT%/*};
>    if [[ ${slot} == "0" ]]; then
>        local desktop_name="${PN}";
>    else
>        local desktop_name="${PN}-${slot}";
>    fi;
>    local desktop="${T}/$(echo ${exec} | sed 's:[[:space:]/:]:_:g')-${desktop_name}.desktop";
>    type=${type%;}${type:+;};
>    if [[ -n ${icon} && ${icon} != /* ]] && [[ ${icon} == *.xpm || ${icon} == *.png || ${icon} == *.svg ]]; then
>        ewarn "As described in the Icon Theme Specification, icon file extensions are not";
>        ewarn "allowed in .desktop files if the value is not an absolute path.";
>        icon=${icon%.*};
>    fi;
>    cat <<-EOF > "${desktop}" || 
>[Desktop Entry]
>Name=${name}
>Type=Application
>Comment=${DESCRIPTION}
>Exec=${exec}
>TryExec=${exec%% *}
>Icon=${icon}
>Categories=${type}
>EOF
> die
>    if [[ ${fields:-=} != *=* ]]; then
>        ewarn "make_desktop_entry: update your 5th arg to read Path=${fields}";
>        fields="Path=${fields}";
>    fi;
>    if [[ -n ${fields} ]]; then
>        printf '%b\n' "${fields}" >> "${desktop}" || die;
>    fi;
>    ( insopts -m 0644;
>    insinto /usr/share/applications;
>    doins "${desktop}" ) || die "installing desktop file failed"
>}
>make_session_desktop () 
>{ 
>    [[ -z $1 ]] && eerror "$0: You must specify the title" && return 1;
>    [[ -z $2 ]] && eerror "$0: You must specify the command" && return 1;
>    local title=$1;
>    local command=$2;
>    local desktop=${T}/${wm:-${PN}}.desktop;
>    shift 2;
>    cat <<-EOF > "${desktop}" || 
>[Desktop Entry]
>Name=${title}
>Comment=This session logs you into ${title}
>Exec=${command} $*
>TryExec=${command}
>Type=XSession
>EOF
> die
>    ( insopts -m 0644;
>    insinto /usr/share/xsessions;
>    doins "${desktop}" )
>}
>make_wrapper () 
>{ 
>    local wrapper=$1 bin=$2 chdir=$3 libdir=$4 path=$5;
>    local tmpwrapper=$(emktemp);
>    has "${EAPI:-0}" 0 1 2 && local EPREFIX="";
>    ( echo '#!/bin/sh';
>    if [[ -n ${libdir} ]]; then
>        local var;
>        if [[ ${CHOST} == *-darwin* ]]; then
>            var=DYLD_LIBRARY_PATH;
>        else
>            var=LD_LIBRARY_PATH;
>        fi;
>        cat <<-EOF
>if [ "\${${var}+set}" = "set" ] ; then
>export ${var}="\${${var}}:${EPREFIX}${libdir}"
>else
>export ${var}="${EPREFIX}${libdir}"
>fi
>EOF
>
>    fi
>    [[ -n ${chdir} ]] && printf 'cd "%s" &&\n' "${EPREFIX}${chdir}";
>    printf 'exec %s "$@"\n' "${bin/#\//${EPREFIX}/}" ) > "${tmpwrapper}";
>    chmod go+rx "${tmpwrapper}";
>    if [[ -n ${path} ]]; then
>        ( exeopts -m 0755;
>        exeinto "${path}";
>        newexe "${tmpwrapper}" "${wrapper}" ) || die;
>    else
>        newbin "${tmpwrapper}" "${wrapper}" || die;
>    fi
>}
>makeopts_jobs () 
>{ 
>    [[ $# -eq 0 ]] && set -- "${MAKEOPTS}";
>    local jobs=$(echo " $* " | sed -r -n 		-e 's:.*[[:space:]](-[a-z]*j|--jobs[=[:space:]])[[:space:]]*([0-9]+).*:\2:p' 		-e "s:.*[[:space:]](-[a-z]*j|--jobs)[[:space:]].*:${2:-999}:p");
>    echo ${jobs:-1}
>}
>makeopts_loadavg () 
>{ 
>    [[ $# -eq 0 ]] && set -- "${MAKEOPTS}";
>    local lavg=$(echo " $* " | sed -r -n 		-e 's:.*[[:space:]](-[a-z]*l|--(load-average|max-load)[=[:space:]])[[:space:]]*([0-9]+(\.[0-9]+)?)[[:space:]].*:\3:p' 		-e "s:.*[[:space:]](-[a-z]*l|--(load-average|max-load))[[:space:]].*:${2:-999}:p");
>    echo ${lavg:-${2:-999}}
>}
>multibuild_copy_sources () 
>{ 
>    debug-print-function ${FUNCNAME} "${@}";
>    local _MULTIBUILD_INITIAL_BUILD_DIR=${BUILD_DIR:-${S}};
>    einfo "Will copy sources from ${_MULTIBUILD_INITIAL_BUILD_DIR}";
>    local cp_args=();
>    if cp --reflink=auto --version &> /dev/null; then
>        cp_args+=(--reflink=auto);
>    fi;
>    function _multibuild_create_source_copy () 
>    { 
>        einfo "${MULTIBUILD_VARIANT}: copying to ${BUILD_DIR}";
>        cp -p -R "${cp_args[@]}" "${_MULTIBUILD_INITIAL_BUILD_DIR}" "${BUILD_DIR}" || die
>    };
>    multibuild_foreach_variant _multibuild_create_source_copy
>}
>multibuild_for_best_variant () 
>{ 
>    debug-print-function ${FUNCNAME} "${@}";
>    [[ -n ${MULTIBUILD_VARIANTS} ]] || die "MULTIBUILD_VARIANTS need to be set";
>    local MULTIBUILD_VARIANTS=("${MULTIBUILD_VARIANTS[$(( ${#MULTIBUILD_VARIANTS[@]} - 1 ))]}");
>    multibuild_foreach_variant "${@}"
>}
>multibuild_foreach_variant () 
>{ 
>    debug-print-function ${FUNCNAME} "${@}";
>    [[ -n ${MULTIBUILD_VARIANTS} ]] || die "MULTIBUILD_VARIANTS need to be set";
>    local bdir=${BUILD_DIR:-${S}};
>    [[ ${bdir%%/} == ${WORKDIR%%/} ]] && bdir=${WORKDIR}/build;
>    local prev_id=${MULTIBUILD_ID:+${MULTIBUILD_ID}-};
>    local ret=0 lret=0 v;
>    debug-print "${FUNCNAME}: initial build_dir = ${bdir}";
>    for v in "${MULTIBUILD_VARIANTS[@]}";
>    do
>        local MULTIBUILD_VARIANT=${v};
>        local MULTIBUILD_ID=${prev_id}${v};
>        local BUILD_DIR=${bdir%%/}-${v};
>        function _multibuild_run () 
>        { 
>            local i=1;
>            while [[ ${!i} == _* ]]; do
>                (( i += 1 ));
>            done;
>            [[ ${i} -le ${#} ]] && einfo "${v}: running ${@:${i}}";
>            "${@}"
>        };
>        _multibuild_run "${@}" > >(exec tee -a "${T}/build-${MULTIBUILD_ID}.log") 2>&1;
>        lret=${?};
>    done;
>    [[ ${ret} -eq 0 && ${lret} -ne 0 ]] && ret=${lret};
>    return ${ret}
>}
>multibuild_merge_root () 
>{ 
>    local src=${1};
>    local dest=${2};
>    local ret;
>    if use userland_BSD; then
>        tar -C "${src}" -f - -c . | tar -x -f - -C "${dest}";
>        [[ ${PIPESTATUS[*]} == '0 0' ]];
>        ret=${?};
>    else
>        local cp_args=();
>        if cp -a --version &> /dev/null; then
>            cp_args+=(-a);
>        else
>            cp_args+=(-P -R -p);
>        fi;
>        if cp --reflink=auto --version &> /dev/null; then
>            cp_args+=(--reflink=auto);
>        fi;
>        cp "${cp_args[@]}" "${src}"/. "${dest}"/;
>        ret=${?};
>    fi;
>    if [[ ${ret} -ne 0 ]]; then
>        die "${MULTIBUILD_VARIANT:-(unknown)}: merging image failed.";
>    fi;
>    rm -rf "${src}"
>}
>multibuild_parallel_foreach_variant () 
>{ 
>    debug-print-function ${FUNCNAME} "${@}";
>    [[ ${EAPI} == [45] ]] || die "${FUNCNAME} is banned in EAPI ${EAPI}";
>    multibuild_foreach_variant "${@}"
>}
>multilib_env () 
>{ 
>    local CTARGET=${1:-${CTARGET}};
>    local cpu=${CTARGET%%*-};
>    case ${cpu} in 
>        aarch64*)
>            export CFLAGS_arm=${CFLAGS_arm-};
>            case ${cpu} in 
>                aarch64*be)
>                    export CHOST_arm="armv8b-${CTARGET#*-}"
>                ;;
>                *)
>                    export CHOST_arm="armv8l-${CTARGET#*-}"
>                ;;
>            esac;
>            CHOST_arm=${CHOST_arm/%-gnu/-gnueabi};
>            export CTARGET_arm=${CHOST_arm};
>            export LIBDIR_arm="lib";
>            export CFLAGS_arm64=${CFLAGS_arm64-};
>            export CHOST_arm64=${CTARGET};
>            export CTARGET_arm64=${CHOST_arm64};
>            export LIBDIR_arm64="lib64";
>            : ${MULTILIB_ABIS=arm64};
>            : ${DEFAULT_ABI=arm64}
>        ;;
>        x86_64*)
>            export CFLAGS_x86=${CFLAGS_x86--m32};
>            export CHOST_x86=${CTARGET/x86_64/i686};
>            CHOST_x86=${CHOST_x86/%-gnux32/-gnu};
>            export CTARGET_x86=${CHOST_x86};
>            if [[ ${SYMLINK_LIB} == "yes" ]]; then
>                export LIBDIR_x86="lib32";
>            else
>                export LIBDIR_x86="lib";
>            fi;
>            export CFLAGS_amd64=${CFLAGS_amd64--m64};
>            export CHOST_amd64=${CTARGET/%-gnux32/-gnu};
>            export CTARGET_amd64=${CHOST_amd64};
>            export LIBDIR_amd64="lib64";
>            export CFLAGS_x32=${CFLAGS_x32--mx32};
>            export CHOST_x32=${CTARGET/%-gnu/-gnux32};
>            export CTARGET_x32=${CHOST_x32};
>            export LIBDIR_x32="libx32";
>            case ${CTARGET} in 
>                *-gnux32)
>                    : ${MULTILIB_ABIS=x32 amd64 x86};
>                    : ${DEFAULT_ABI=x32}
>                ;;
>                *)
>                    : ${MULTILIB_ABIS=amd64 x86};
>                    : ${DEFAULT_ABI=amd64}
>                ;;
>            esac
>        ;;
>        mips64* | mipsisa64*)
>            export CFLAGS_o32=${CFLAGS_o32--mabi=32};
>            export CHOST_o32=${CTARGET/mips64/mips};
>            export CHOST_o32=${CHOST_o32/mipsisa64/mipsisa32};
>            export CTARGET_o32=${CHOST_o32};
>            export LIBDIR_o32="lib";
>            export CFLAGS_n32=${CFLAGS_n32--mabi=n32};
>            export CHOST_n32=${CTARGET};
>            export CTARGET_n32=${CHOST_n32};
>            export LIBDIR_n32="lib32";
>            export CFLAGS_n64=${CFLAGS_n64--mabi=64};
>            export CHOST_n64=${CTARGET};
>            export CTARGET_n64=${CHOST_n64};
>            export LIBDIR_n64="lib64";
>            : ${MULTILIB_ABIS=n64 n32 o32};
>            : ${DEFAULT_ABI=n32}
>        ;;
>        powerpc64*)
>            export CFLAGS_ppc=${CFLAGS_ppc--m32};
>            export CHOST_ppc=${CTARGET/powerpc64/powerpc};
>            export CTARGET_ppc=${CHOST_ppc};
>            export LIBDIR_ppc="lib";
>            export CFLAGS_ppc64=${CFLAGS_ppc64--m64};
>            export CHOST_ppc64=${CTARGET};
>            export CTARGET_ppc64=${CHOST_ppc64};
>            export LIBDIR_ppc64="lib64";
>            : ${MULTILIB_ABIS=ppc64 ppc};
>            : ${DEFAULT_ABI=ppc64}
>        ;;
>        riscv64*)
>            export CFLAGS_lp64d=${CFLAGS_lp64d--mabi=lp64d};
>            export CHOST_lp64d=${CTARGET};
>            export CTARGET_lp64d=${CTARGET};
>            export LIBDIR_lp64d="lib64/lp64d";
>            export CFLAGS_lp64=${CFLAGS_lp64--mabi=lp64};
>            export CHOST_lp64=${CTARGET};
>            export CTARGET_lp64=${CTARGET};
>            export LIBDIR_lp64="lib64/lp64";
>            : ${MULTILIB_ABIS=lp64d lp64};
>            : ${DEFAULT_ABI=lp64d}
>        ;;
>        s390x*)
>            export CFLAGS_s390=${CFLAGS_s390--m31};
>            export CHOST_s390=${CTARGET/s390x/s390};
>            export CTARGET_s390=${CHOST_s390};
>            export LIBDIR_s390="lib";
>            export CFLAGS_s390x=${CFLAGS_s390x--m64};
>            export CHOST_s390x=${CTARGET};
>            export CTARGET_s390x=${CHOST_s390x};
>            export LIBDIR_s390x="lib64";
>            : ${MULTILIB_ABIS=s390x s390};
>            : ${DEFAULT_ABI=s390x}
>        ;;
>        sparc64*)
>            export CFLAGS_sparc32=${CFLAGS_sparc32--m32};
>            export CHOST_sparc32=${CTARGET/sparc64/sparc};
>            export CTARGET_sparc32=${CHOST_sparc32};
>            export LIBDIR_sparc32="lib";
>            export CFLAGS_sparc64=${CFLAGS_sparc64--m64};
>            export CHOST_sparc64=${CTARGET};
>            export CTARGET_sparc64=${CHOST_sparc64};
>            export LIBDIR_sparc64="lib64";
>            : ${MULTILIB_ABIS=sparc64 sparc32};
>            : ${DEFAULT_ABI=sparc64}
>        ;;
>        *)
>            : ${MULTILIB_ABIS=default};
>            : ${DEFAULT_ABI=default}
>        ;;
>    esac;
>    export MULTILIB_ABIS DEFAULT_ABI
>}
>multilib_toolchain_setup () 
>{ 
>    local v vv;
>    export ABI=$1;
>    if [[ ${_DEFAULT_ABI_SAVED} == "true" ]]; then
>        for v in CHOST CBUILD AS CC CXX F77 FC LD PKG_CONFIG_{LIBDIR,PATH};
>        do
>            vv="_abi_saved_${v}";
>            [[ ${!vv+set} == "set" ]] && export ${v}="${!vv}" || unset ${v};
>            unset ${vv};
>        done;
>        unset _DEFAULT_ABI_SAVED;
>    fi;
>    if [[ ${ABI} != ${DEFAULT_ABI} ]]; then
>        for v in CHOST CBUILD AS CC CXX F77 FC LD PKG_CONFIG_{LIBDIR,PATH};
>        do
>            vv="_abi_saved_${v}";
>            [[ ${!v+set} == "set" ]] && export ${vv}="${!v}" || unset ${vv};
>        done;
>        export _DEFAULT_ABI_SAVED="true";
>        if [[ ${CBUILD} == "${CHOST}" ]]; then
>            export CBUILD=$(get_abi_CHOST $1);
>        fi;
>        export CHOST=$(get_abi_CHOST ${DEFAULT_ABI});
>        export CC="$(tc-getCC) $(get_abi_CFLAGS)";
>        export CXX="$(tc-getCXX) $(get_abi_CFLAGS)";
>        export F77="$(tc-getF77) $(get_abi_CFLAGS)";
>        export FC="$(tc-getFC) $(get_abi_CFLAGS)";
>        export LD="$(tc-getLD) $(get_abi_LDFLAGS)";
>        export CHOST=$(get_abi_CHOST $1);
>        export PKG_CONFIG_LIBDIR=${EPREFIX}/usr/$(get_libdir)/pkgconfig;
>        export PKG_CONFIG_PATH=${EPREFIX}/usr/share/pkgconfig;
>    fi
>}
>newicon () 
>{ 
>    _iconins ${FUNCNAME} "$@"
>}
>newmenu () 
>{ 
>    ( insopts -m 0644;
>    insinto /usr/share/applications;
>    newins "$@" )
>}
>no-as-needed () 
>{ 
>    case $($(tc-getLD) -v 2>&1 </dev/null) in 
>        *GNU*)
>            echo "-Wl,--no-as-needed"
>        ;;
>    esac
>}
>number_abis () 
>{ 
>    set -- `get_install_abis`;
>    echo $#
>}
>optfeature () 
>{ 
>    debug-print-function ${FUNCNAME} "$@";
>    local i j msg;
>    local desc=$1;
>    local flag=0;
>    shift;
>    for i in "$@";
>    do
>        for j in ${i};
>        do
>            if has_version "${j}"; then
>                flag=1;
>            else
>                flag=0;
>                break;
>            fi;
>        done;
>        if [[ ${flag} -eq 1 ]]; then
>            break;
>        fi;
>    done;
>    if [[ ${flag} -eq 0 ]]; then
>        for i in "$@";
>        do
>            msg=" ";
>            for j in ${i};
>            do
>                msg+=" ${j} and";
>            done;
>            msg="${msg:0: -4} for ${desc}";
>            elog "${msg}";
>        done;
>    fi
>}
>path_exists () 
>{ 
>    eerror "path_exists has been removed.  Please see the following post";
>    eerror "for a replacement snippet:";
>    eerror "https://blogs.gentoo.org/mgorny/2018/08/09/inlining-path_exists/";
>    die "path_exists is banned"
>}
>pkg_nofetch () 
>{ 
>    default
>}
>preserve_old_lib () 
>{ 
>    if [[ ${EBUILD_PHASE} != "preinst" ]]; then
>        eerror "preserve_old_lib() must be called from pkg_preinst() only";
>        die "Invalid preserve_old_lib() usage";
>    fi;
>    [[ -z $1 ]] && die "Usage: preserve_old_lib <library to preserve> [more libraries to preserve]";
>    has preserve-libs ${FEATURES} && return 0;
>    has "${EAPI:-0}" 0 1 2 && local ED=${D} EROOT=${ROOT};
>    local lib dir;
>    for lib in "$@";
>    do
>        [[ -e ${EROOT}/${lib} ]] || continue;
>        dir=${lib%/*};
>        dodir ${dir} || die "dodir ${dir} failed";
>        cp "${EROOT}"/${lib} "${ED}"/${lib} || die "cp ${lib} failed";
>        touch "${ED}"/${lib};
>    done
>}
>preserve_old_lib_notify () 
>{ 
>    if [[ ${EBUILD_PHASE} != "postinst" ]]; then
>        eerror "preserve_old_lib_notify() must be called from pkg_postinst() only";
>        die "Invalid preserve_old_lib_notify() usage";
>    fi;
>    has preserve-libs ${FEATURES} && return 0;
>    has "${EAPI:-0}" 0 1 2 && local EROOT=${ROOT};
>    local lib notice=0;
>    for lib in "$@";
>    do
>        [[ -e ${EROOT}/${lib} ]] || continue;
>        if [[ ${notice} -eq 0 ]]; then
>            notice=1;
>            ewarn "Old versions of installed libraries were detected on your system.";
>            ewarn "In order to avoid breaking packages that depend on these old libs,";
>            ewarn "the libraries are not being removed.  You need to run revdep-rebuild";
>            ewarn "in order to remove these old dependencies.  If you do not have this";
>            ewarn "helper program, simply emerge the 'gentoolkit' package.";
>            ewarn;
>        fi;
>        ewarn "  # revdep-rebuild --library '${lib}' && rm '${lib}'";
>    done
>}
>prune_libtool_files () 
>{ 
>    debug-print-function ${FUNCNAME} "$@";
>    local removing_all removing_modules opt;
>    for opt in "$@";
>    do
>        case "${opt}" in 
>            --all)
>                removing_all=1;
>                removing_modules=1
>            ;;
>            --modules)
>                removing_modules=1
>            ;;
>            *)
>                die "Invalid argument to ${FUNCNAME}(): ${opt}"
>            ;;
>        esac;
>    done;
>    local f;
>    local queue=();
>    while IFS= read -r -d '' f; do
>        local archivefile=${f/%.la/.a};
>        if ! sed -n -e '/^# Generated by .*libtool/q0;4q1' "${f}"; then
>            continue;
>        fi;
>        [[ ${f} != ${archivefile} ]] || die 'regex sanity check failed';
>        local reason= pkgconfig_scanned=;
>        local snotlink=$(sed -n -e 's:^shouldnotlink=::p' "${f}");
>        if [[ ${snotlink} == yes ]]; then
>            if [[ -f ${archivefile} ]]; then
>                einfo "Removing unnecessary ${archivefile#${D%/}} (static plugin)";
>                queue+=("${archivefile}");
>            fi;
>            if [[ -n ${removing_modules} ]]; then
>                reason='module';
>            fi;
>        else
>            if [[ -n ${removing_all} ]]; then
>                reason='requested';
>            else
>                if [[ ! -f ${archivefile} ]]; then
>                    reason='no static archive';
>                else
>                    if [[ ! -n $(sed -nre 					"s/^(dependency_libs|inherited_linker_flags)='(.*)'$/\2/p" 					"${f}") ]]; then
>                        reason='no libs & flags';
>                    else
>                        if [[ ! -n ${pkgconfig_scanned} ]]; then
>                            local pc_libs=();
>                            if [[ ! -n ${removing_all} ]]; then
>                                local pc;
>                                local tf=${T}/prune-lt-files.pc;
>                                local pkgconf=$(tc-getPKG_CONFIG);
>                                while IFS= read -r -d '' pc; do
>                                    local arg libs;
>                                    if ${pkgconf} --exists "${pc}" &> /dev/null; then
>                                        sed -e '/^Requires:/d' "${pc}" > "${tf}";
>                                        libs=$(${pkgconf} --libs "${tf}");
>                                    else
>                                        libs=$(sed -ne 's/^Libs://p' "${pc}");
>                                    fi;
>                                    for arg in ${libs};
>                                    do
>                                        if [[ ${arg} == -l* ]]; then
>                                            if [[ ${arg} == '*$*' ]]; then
>                                                eerror "${FUNCNAME}: variable substitution likely failed in ${pc}";
>                                                eerror "(arg: ${arg})";
>                                                eerror "Most likely, you need to add virtual/pkgconfig to DEPEND.";
>                                                die "${FUNCNAME}: unsubstituted variable found in .pc";
>                                            fi;
>                                            pc_libs+=(lib${arg#-l}.la);
>                                        fi;
>                                    done;
>                                done < <(find "${D}" -type f -name '*.pc' -print0);
>                                rm -f "${tf}";
>                            fi;
>                            pkgconfig_scanned=1;
>                        fi;
>                        has "${f##*/}" "${pc_libs[@]}" && reason='covered by .pc';
>                    fi;
>                fi;
>            fi;
>        fi;
>        if [[ -n ${reason} ]]; then
>            einfo "Removing unnecessary ${f#${D%/}} (${reason})";
>            queue+=("${f}");
>        fi;
>    done < <(find "${D}" -xtype f -name '*.la' -print0);
>    if [[ -n ${queue[@]} ]]; then
>        rm -f "${queue[@]}";
>    fi
>}
>python_abi_depend () 
>{ 
>    die "${FUNCNAME}() is invalid for python-r1 suite"
>}
>python_byte-compile_modules () 
>{ 
>    die "${FUNCNAME}() is invalid for python-r1 suite"
>}
>python_clean_byte-compiled_modules () 
>{ 
>    die "${FUNCNAME}() is invalid for python-r1 suite"
>}
>python_clean_installation_image () 
>{ 
>    die "${FUNCNAME}() is invalid for python-r1 suite"
>}
>python_clean_py-compile_files () 
>{ 
>    die "${FUNCNAME}() is invalid for python-r1 suite"
>}
>python_convert_shebangs () 
>{ 
>    die "${FUNCNAME}() is invalid for python-r1 suite, please take a look @ https://wiki.gentoo.org/wiki/Project:Python/Python.eclass_conversion#python_convert_shebangs"
>}
>python_copy_sources () 
>{ 
>    debug-print-function ${FUNCNAME} "${@}";
>    local MULTIBUILD_VARIANTS;
>    _python_obtain_impls;
>    multibuild_copy_sources
>}
>python_disable_pyc () 
>{ 
>    die "${FUNCNAME}() is invalid for python-r1 suite"
>}
>python_doexe () 
>{ 
>    debug-print-function ${FUNCNAME} "${@}";
>    local f;
>    for f in "$@";
>    do
>        python_newexe "${f}" "${f##*/}";
>    done
>}
>python_doheader () 
>{ 
>    debug-print-function ${FUNCNAME} "${@}";
>    [[ -n ${EPYTHON} ]] || die 'No Python implementation set (EPYTHON is null).';
>    if [[ ${EAPI:-0} == [0123] ]]; then
>        die "python_do* and python_new* helpers are banned in EAPIs older than 4.";
>    fi;
>    local d PYTHON_INCLUDEDIR=${PYTHON_INCLUDEDIR};
>    [[ -n ${PYTHON_INCLUDEDIR} ]] || python_export PYTHON_INCLUDEDIR;
>    d=${PYTHON_INCLUDEDIR#${EPREFIX}};
>    ( insopts -m 0644;
>    insinto "${d}";
>    doins -r "${@}" || return ${?} )
>}
>python_domodule () 
>{ 
>    debug-print-function ${FUNCNAME} "${@}";
>    [[ -n ${EPYTHON} ]] || die 'No Python implementation set (EPYTHON is null).';
>    if [[ ${EAPI:-0} == [0123] ]]; then
>        die "python_do* and python_new* helpers are banned in EAPIs older than 4.";
>    fi;
>    local d;
>    if [[ ${python_moduleroot} == /* ]]; then
>        d=${python_moduleroot};
>    else
>        local PYTHON_SITEDIR=${PYTHON_SITEDIR};
>        [[ -n ${PYTHON_SITEDIR} ]] || python_export PYTHON_SITEDIR;
>        d=${PYTHON_SITEDIR#${EPREFIX}}/${python_moduleroot//.//};
>    fi;
>    ( insopts -m 0644;
>    insinto "${d}";
>    doins -r "${@}" || return ${?} );
>    python_optimize "${ED%/}/${d}"
>}
>python_doscript () 
>{ 
>    debug-print-function ${FUNCNAME} "${@}";
>    local _PYTHON_REWRITE_SHEBANG=1;
>    python_doexe "${@}"
>}
>python_enable_pyc () 
>{ 
>    die "${FUNCNAME}() is invalid for python-r1 suite"
>}
>python_execute_function () 
>{ 
>    die "${FUNCNAME}() is invalid for python-r1 suite, please take a look @ https://wiki.gentoo.org/wiki/Project:Python/Python.eclass_conversion#python_execute_function"
>}
>python_execute_nosetests () 
>{ 
>    die "${FUNCNAME}() is invalid for python-r1 suite"
>}
>python_execute_py.test () 
>{ 
>    die "${FUNCNAME}() is invalid for python-r1 suite"
>}
>python_execute_trial () 
>{ 
>    die "${FUNCNAME}() is invalid for python-r1 suite"
>}
>python_export () 
>{ 
>    debug-print-function ${FUNCNAME} "${@}";
>    local impl var;
>    case "${1}" in 
>        python* | jython*)
>            impl=${1/_/.};
>            shift
>        ;;
>        pypy | pypy3)
>            impl=${1};
>            shift
>        ;;
>        *)
>            impl=${EPYTHON};
>            if [[ -z ${impl} ]]; then
>                die "python_export called without a python implementation and EPYTHON is unset";
>            fi
>        ;;
>    esac;
>    debug-print "${FUNCNAME}: implementation: ${impl}";
>    for var in "$@";
>    do
>        case "${var}" in 
>            EPYTHON)
>                export EPYTHON=${impl};
>                debug-print "${FUNCNAME}: EPYTHON = ${EPYTHON}"
>            ;;
>            PYTHON)
>                export PYTHON=${EPREFIX}/usr/bin/${impl};
>                debug-print "${FUNCNAME}: PYTHON = ${PYTHON}"
>            ;;
>            PYTHON_SITEDIR)
>                [[ -n ${PYTHON} ]] || die "PYTHON needs to be set for ${var} to be exported, or requested before it";
>                PYTHON_SITEDIR=$("${PYTHON}" -c 'import distutils.sysconfig; print(distutils.sysconfig.get_python_lib())') || die;
>                export PYTHON_SITEDIR;
>                debug-print "${FUNCNAME}: PYTHON_SITEDIR = ${PYTHON_SITEDIR}"
>            ;;
>            PYTHON_INCLUDEDIR)
>                [[ -n ${PYTHON} ]] || die "PYTHON needs to be set for ${var} to be exported, or requested before it";
>                PYTHON_INCLUDEDIR=$("${PYTHON}" -c 'import distutils.sysconfig; print(distutils.sysconfig.get_python_inc())') || die;
>                export PYTHON_INCLUDEDIR;
>                debug-print "${FUNCNAME}: PYTHON_INCLUDEDIR = ${PYTHON_INCLUDEDIR}";
>                if [[ ! -d ${PYTHON_INCLUDEDIR} ]]; then
>                    die "${impl} does not install any header files!";
>                fi
>            ;;
>            PYTHON_LIBPATH)
>                [[ -n ${PYTHON} ]] || die "PYTHON needs to be set for ${var} to be exported, or requested before it";
>                PYTHON_LIBPATH=$("${PYTHON}" -c 'import os.path, sysconfig; print(os.path.join(sysconfig.get_config_var("LIBDIR"), sysconfig.get_config_var("LDLIBRARY")) if sysconfig.get_config_var("LDLIBRARY") else "")') || die;
>                export PYTHON_LIBPATH;
>                debug-print "${FUNCNAME}: PYTHON_LIBPATH = ${PYTHON_LIBPATH}";
>                if [[ ! -n ${PYTHON_LIBPATH} ]]; then
>                    die "${impl} lacks a (usable) dynamic library";
>                fi
>            ;;
>            PYTHON_CFLAGS)
>                local val;
>                case "${impl}" in 
>                    python*)
>                        val=$($(tc-getPKG_CONFIG) --cflags ${impl/n/n-}) || die
>                    ;;
>                    *)
>                        die "${impl}: obtaining ${var} not supported"
>                    ;;
>                esac;
>                export PYTHON_CFLAGS=${val};
>                debug-print "${FUNCNAME}: PYTHON_CFLAGS = ${PYTHON_CFLAGS}"
>            ;;
>            PYTHON_LIBS)
>                local val;
>                case "${impl}" in 
>                    python*)
>                        val=$($(tc-getPKG_CONFIG) --libs ${impl/n/n-}) || die
>                    ;;
>                    *)
>                        die "${impl}: obtaining ${var} not supported"
>                    ;;
>                esac;
>                export PYTHON_LIBS=${val};
>                debug-print "${FUNCNAME}: PYTHON_LIBS = ${PYTHON_LIBS}"
>            ;;
>            PYTHON_CONFIG)
>                local flags val;
>                case "${impl}" in 
>                    python*)
>                        [[ -n ${PYTHON} ]] || die "PYTHON needs to be set for ${var} to be exported, or requested before it";
>                        flags=$("${PYTHON}" -c 'import sysconfig; print(sysconfig.get_config_var("ABIFLAGS") or "")') || die;
>                        val=${PYTHON}${flags}-config
>                    ;;
>                    *)
>                        die "${impl}: obtaining ${var} not supported"
>                    ;;
>                esac;
>                export PYTHON_CONFIG=${val};
>                debug-print "${FUNCNAME}: PYTHON_CONFIG = ${PYTHON_CONFIG}"
>            ;;
>            PYTHON_PKG_DEP)
>                local d;
>                case ${impl} in 
>                    python2.7)
>                        PYTHON_PKG_DEP='>=dev-lang/python-2.7.5-r2:2.7'
>                    ;;
>                    python3.3)
>                        PYTHON_PKG_DEP='>=dev-lang/python-3.3.2-r2:3.3'
>                    ;;
>                    python*)
>                        PYTHON_PKG_DEP="dev-lang/python:${impl#python}"
>                    ;;
>                    pypy)
>                        PYTHON_PKG_DEP='>=virtual/pypy-5:0='
>                    ;;
>                    pypy3)
>                        PYTHON_PKG_DEP='>=virtual/pypy3-5:0='
>                    ;;
>                    jython2.7)
>                        PYTHON_PKG_DEP='dev-java/jython:2.7'
>                    ;;
>                    *)
>                        die "Invalid implementation: ${impl}"
>                    ;;
>                esac;
>                if [[ -n ${PYTHON_REQ_USE} ]]; then
>                    PYTHON_PKG_DEP+=[${PYTHON_REQ_USE}];
>                fi;
>                export PYTHON_PKG_DEP;
>                debug-print "${FUNCNAME}: PYTHON_PKG_DEP = ${PYTHON_PKG_DEP}"
>            ;;
>            PYTHON_SCRIPTDIR)
>                local dir;
>                export PYTHON_SCRIPTDIR=${EPREFIX}/usr/lib/python-exec/${impl};
>                debug-print "${FUNCNAME}: PYTHON_SCRIPTDIR = ${PYTHON_SCRIPTDIR}"
>            ;;
>            *)
>                die "python_export: unknown variable ${var}"
>            ;;
>        esac;
>    done
>}
>python_export_best () 
>{ 
>    debug-print-function ${FUNCNAME} "${@}";
>    [[ ${EAPI} == [45] ]] || die "${FUNCNAME} is banned in EAPI ${EAPI}";
>    eqawarn "python_export_best() is deprecated. Please use python_setup instead,";
>    eqawarn "combined with python_export if necessary.";
>    [[ ${#} -gt 0 ]] || set -- EPYTHON PYTHON;
>    local best MULTIBUILD_VARIANTS;
>    _python_obtain_impls;
>    function _python_set_best () 
>    { 
>        best=${MULTIBUILD_VARIANT}
>    };
>    multibuild_for_best_variant _python_set_best;
>    unset -f _python_set_best;
>    debug-print "${FUNCNAME}: Best implementation is: ${best}";
>    python_export "${best}" "${@}";
>    python_wrapper_setup
>}
>python_export_utf8_locale () 
>{ 
>    debug-print-function ${FUNCNAME} "${@}";
>    type locale > /dev/null || return 0;
>    if [[ $(locale charmap) != UTF-8 ]]; then
>        local lang locales="C.UTF-8 en_US.UTF-8 en_GB.UTF-8 $(locale -a)";
>        for lang in ${locales};
>        do
>            if [[ $(LC_ALL=${lang} locale charmap 2>/dev/null) == UTF-8 ]]; then
>                if _python_check_locale_sanity "${lang}"; then
>                    export LC_CTYPE=${lang};
>                    if [[ -n ${LC_ALL} ]]; then
>                        export LC_NUMERIC=${LC_ALL};
>                        export LC_TIME=${LC_ALL};
>                        export LC_COLLATE=${LC_ALL};
>                        export LC_MONETARY=${LC_ALL};
>                        export LC_MESSAGES=${LC_ALL};
>                        export LC_PAPER=${LC_ALL};
>                        export LC_NAME=${LC_ALL};
>                        export LC_ADDRESS=${LC_ALL};
>                        export LC_TELEPHONE=${LC_ALL};
>                        export LC_MEASUREMENT=${LC_ALL};
>                        export LC_IDENTIFICATION=${LC_ALL};
>                        export LC_ALL=;
>                    fi;
>                    return 0;
>                fi;
>            fi;
>        done;
>        ewarn "Could not find a UTF-8 locale. This may trigger build failures in";
>        ewarn "some python packages. Please ensure that a UTF-8 locale is listed in";
>        ewarn "/etc/locale.gen and run locale-gen.";
>        return 1;
>    fi;
>    return 0
>}
>python_fix_shebang () 
>{ 
>    debug-print-function ${FUNCNAME} "${@}";
>    [[ -n ${EPYTHON} ]] || die "${FUNCNAME}: EPYTHON unset (pkg_setup not called?)";
>    local force quiet;
>    while [[ -n ${@} ]]; do
>        case "${1}" in 
>            -f | --force)
>                force=1;
>                shift
>            ;;
>            -q | --quiet)
>                quiet=1;
>                shift
>            ;;
>            --)
>                shift;
>                break
>            ;;
>            *)
>                break
>            ;;
>        esac;
>    done;
>    [[ -n ${1} ]] || die "${FUNCNAME}: no paths given";
>    local path f;
>    for path in "$@";
>    do
>        local any_correct any_fixed is_recursive;
>        [[ -d ${path} ]] && is_recursive=1;
>        while IFS= read -r -d '' f; do
>            local shebang i;
>            local error= from=;
>            IFS= read -r shebang < "${f}";
>            if [[ ${shebang} == '#!'* ]]; then
>                local split_shebang=();
>                read -r -a split_shebang <<< ${shebang} || die;
>                for i in "${split_shebang[@]}";
>                do
>                    case "${i}" in 
>                        *"${EPYTHON}")
>                            debug-print "${FUNCNAME}: in file ${f#${D%/}}";
>                            debug-print "${FUNCNAME}: shebang matches EPYTHON: ${shebang}";
>                            any_correct=1;
>                            from=${EPYTHON};
>                            break
>                        ;;
>                        *python | *python[23])
>                            debug-print "${FUNCNAME}: in file ${f#${D%/}}";
>                            debug-print "${FUNCNAME}: rewriting shebang: ${shebang}";
>                            if [[ ${i} == *python2 ]]; then
>                                from=python2;
>                                if [[ ! -n ${force} ]]; then
>                                    python_is_python3 "${EPYTHON}" && error=1;
>                                fi;
>                            else
>                                if [[ ${i} == *python3 ]]; then
>                                    from=python3;
>                                    if [[ ! -n ${force} ]]; then
>                                        python_is_python3 "${EPYTHON}" || error=1;
>                                    fi;
>                                else
>                                    from=python;
>                                fi;
>                            fi;
>                            break
>                        ;;
>                        *python[23].[0123456789] | *pypy | *pypy3 | *jython[23].[0123456789])
>                            if [[ ! -n ${force} ]]; then
>                                error=1;
>                            else
>                                case "${i}" in 
>                                    *python[23].[0123456789])
>                                        from="python[23].[0123456789]"
>                                    ;;
>                                    *pypy)
>                                        from="pypy"
>                                    ;;
>                                    *pypy3)
>                                        from="pypy3"
>                                    ;;
>                                    *jython[23].[0123456789])
>                                        from="jython[23].[0123456789]"
>                                    ;;
>                                    *)
>                                        die "${FUNCNAME}: internal error in 2nd pattern match"
>                                    ;;
>                                esac;
>                            fi;
>                            break
>                        ;;
>                    esac;
>                done;
>            fi;
>            if [[ ! -n ${error} && ! -n ${from} ]]; then
>                [[ -n ${is_recursive} ]] && continue;
>                error=1;
>            fi;
>            if [[ ! -n ${quiet} ]]; then
>                einfo "Fixing shebang in ${f#${D%/}}.";
>            fi;
>            if [[ ! -n ${error} ]]; then
>                if [[ ${shebang} == *${from}" "* ]]; then
>                    sed -i -e "1s:${from} :${EPYTHON} :" "${f}" || die;
>                else
>                    sed -i -e "1s:${from}$:${EPYTHON}:" "${f}" || die;
>                fi;
>                any_fixed=1;
>            else
>                eerror "The file has incompatible shebang:";
>                eerror "  file: ${f#${D%/}}";
>                eerror "  current shebang: ${shebang}";
>                eerror "  requested impl: ${EPYTHON}";
>                die "${FUNCNAME}: conversion of incompatible shebang requested";
>            fi;
>        done < <(find -H "${path}" -type f -print0 || die);
>        if [[ ! -n ${any_fixed} ]]; then
>            local cmd=eerror;
>            [[ ${EAPI:-0} == [012345] ]] && cmd=eqawarn;
>            "${cmd}" "QA warning: ${FUNCNAME}, ${path#${D%/}} did not match any fixable files.";
>            if [[ -n ${any_correct} ]]; then
>                "${cmd}" "All files have ${EPYTHON} shebang already.";
>            else
>                "${cmd}" "There are no Python files in specified directory.";
>            fi;
>            [[ ${cmd} == eerror ]] && die "${FUNCNAME} did not match any fixable files (QA warning fatal in EAPI ${EAPI})";
>        fi;
>    done
>}
>python_foreach_impl () 
>{ 
>    debug-print-function ${FUNCNAME} "${@}";
>    local MULTIBUILD_VARIANTS;
>    _python_obtain_impls;
>    multibuild_foreach_variant _python_multibuild_wrapper "${@}"
>}
>python_gen_any_dep () 
>{ 
>    debug-print-function ${FUNCNAME} "${@}";
>    local depstr=${1};
>    [[ -n ${depstr} ]] || die "No dependency string provided";
>    shift;
>    local i PYTHON_PKG_DEP out=;
>    for i in "${_PYTHON_SUPPORTED_IMPLS[@]}";
>    do
>        if _python_impl_matches "${i}" "${@-*}"; then
>            local PYTHON_USEDEP="python_targets_${i}(-),python_single_target_${i}(+)";
>            python_export "${i}" PYTHON_PKG_DEP;
>            local i_depstr=${depstr//\$\{PYTHON_USEDEP\}/${PYTHON_USEDEP}};
>            out="( ${PYTHON_PKG_DEP%=} ${i_depstr} ) ${out}";
>        fi;
>    done;
>    echo "|| ( ${out})"
>}
>python_gen_cond_dep () 
>{ 
>    debug-print-function ${FUNCNAME} "${@}";
>    local impl matches=();
>    local dep=${1};
>    shift;
>    for impl in "${_PYTHON_SUPPORTED_IMPLS[@]}";
>    do
>        if _python_impl_matches "${impl}" "${@}"; then
>            if [[ ${dep} == *'${PYTHON_USEDEP}'* ]]; then
>                local usedep=$(python_gen_usedep "${@}");
>                dep=${dep//\$\{PYTHON_USEDEP\}/${usedep}};
>            fi;
>            matches+=("python_targets_${impl}? ( ${dep} )");
>        fi;
>    done;
>    echo "${matches[@]}"
>}
>python_gen_impl_dep () 
>{ 
>    debug-print-function ${FUNCNAME} "${@}";
>    local impl matches=();
>    local PYTHON_REQ_USE=${1};
>    shift;
>    local patterns=("${@-*}");
>    for impl in "${_PYTHON_SUPPORTED_IMPLS[@]}";
>    do
>        if _python_impl_matches "${impl}" "${patterns[@]}"; then
>            local PYTHON_PKG_DEP;
>            python_export "${impl}" PYTHON_PKG_DEP;
>            matches+=("python_targets_${impl}? ( ${PYTHON_PKG_DEP} )");
>        fi;
>    done;
>    echo "${matches[@]}"
>}
>python_gen_usedep () 
>{ 
>    debug-print-function ${FUNCNAME} "${@}";
>    local impl matches=();
>    for impl in "${_PYTHON_SUPPORTED_IMPLS[@]}";
>    do
>        if _python_impl_matches "${impl}" "${@}"; then
>            matches+=("python_targets_${impl}(-)?" "-python_single_target_${impl}(-)");
>        fi;
>    done;
>    [[ -n ${matches[@]} ]] || die "No supported implementations match python_gen_usedep patterns: ${@}";
>    local out=${matches[@]};
>    echo "${out// /,}"
>}
>python_gen_useflags () 
>{ 
>    debug-print-function ${FUNCNAME} "${@}";
>    local impl matches=();
>    for impl in "${_PYTHON_SUPPORTED_IMPLS[@]}";
>    do
>        if _python_impl_matches "${impl}" "${@}"; then
>            matches+=("python_targets_${impl}");
>        fi;
>    done;
>    echo "${matches[@]}"
>}
>python_generate_cffi_modules () 
>{ 
>    die "${FUNCNAME}() is invalid for python-r1 suite"
>}
>python_generate_wrapper_scripts () 
>{ 
>    die "${FUNCNAME}() is invalid for python-r1 suite"
>}
>python_get_CFLAGS () 
>{ 
>    debug-print-function ${FUNCNAME} "${@}";
>    python_export "${@}" PYTHON_CFLAGS;
>    echo "${PYTHON_CFLAGS}"
>}
>python_get_LIBS () 
>{ 
>    debug-print-function ${FUNCNAME} "${@}";
>    python_export "${@}" PYTHON_LIBS;
>    echo "${PYTHON_LIBS}"
>}
>python_get_PYTHON_CONFIG () 
>{ 
>    debug-print-function ${FUNCNAME} "${@}";
>    python_export "${@}" PYTHON_CONFIG;
>    echo "${PYTHON_CONFIG}"
>}
>python_get_extension_module_suffix () 
>{ 
>    die "${FUNCNAME}() is invalid for python-r1 suite"
>}
>python_get_implementation () 
>{ 
>    die "${FUNCNAME}() is invalid for python-r1 suite"
>}
>python_get_implementation_and_version () 
>{ 
>    die "${FUNCNAME}() is invalid for python-r1 suite"
>}
>python_get_implementational_package () 
>{ 
>    die "${FUNCNAME}() is invalid for python-r1 suite"
>}
>python_get_includedir () 
>{ 
>    debug-print-function ${FUNCNAME} "${@}";
>    python_export "${@}" PYTHON_INCLUDEDIR;
>    echo "${PYTHON_INCLUDEDIR}"
>}
>python_get_libdir () 
>{ 
>    die "${FUNCNAME}() is invalid for python-r1 suite"
>}
>python_get_library () 
>{ 
>    die "${FUNCNAME}() is invalid for python-r1 suite"
>}
>python_get_library_path () 
>{ 
>    debug-print-function ${FUNCNAME} "${@}";
>    python_export "${@}" PYTHON_LIBPATH;
>    echo "${PYTHON_LIBPATH}"
>}
>python_get_scriptdir () 
>{ 
>    debug-print-function ${FUNCNAME} "${@}";
>    python_export "${@}" PYTHON_SCRIPTDIR;
>    echo "${PYTHON_SCRIPTDIR}"
>}
>python_get_sitedir () 
>{ 
>    debug-print-function ${FUNCNAME} "${@}";
>    python_export "${@}" PYTHON_SITEDIR;
>    echo "${PYTHON_SITEDIR}"
>}
>python_get_version () 
>{ 
>    die "${FUNCNAME}() is invalid for python-r1 suite"
>}
>python_install_executables () 
>{ 
>    die "${FUNCNAME}() is invalid for python-r1 suite"
>}
>python_is_installed () 
>{ 
>    local impl=${1:-${EPYTHON}};
>    [[ -n ${impl} ]] || die "${FUNCNAME}: no impl nor EPYTHON";
>    local hasv_args=();
>    case ${EAPI:-0} in 
>        0 | 1 | 2 | 3 | 4)
>            local -x ROOT=/
>        ;;
>        5 | 6)
>            hasv_args+=(--host-root)
>        ;;
>        *)
>            hasv_args+=(-b)
>        ;;
>    esac;
>    case "${impl}" in 
>        pypy | pypy3)
>            local append=;
>            if [[ -n ${PYTHON_REQ_USE} ]]; then
>                append=[${PYTHON_REQ_USE}];
>            fi;
>            has_version "${hasv_args[@]}" "dev-python/${impl}${append}" || has_version "${hasv_args[@]}" "dev-python/${impl}-bin${append}"
>        ;;
>        *)
>            local PYTHON_PKG_DEP;
>            python_export "${impl}" PYTHON_PKG_DEP;
>            has_version "${hasv_args[@]}" "${PYTHON_PKG_DEP}"
>        ;;
>    esac
>}
>python_is_python3 () 
>{ 
>    local impl=${1:-${EPYTHON}};
>    [[ -n ${impl} ]] || die "python_is_python3: no impl nor EPYTHON";
>    [[ ${impl} == python3* || ${impl} == pypy3 ]]
>}
>python_merge_intermediate_installation_images () 
>{ 
>    die "${FUNCNAME}() is invalid for python-r1 suite"
>}
>python_mod_cleanup () 
>{ 
>    die "${FUNCNAME}() is invalid for python-r1 suite, please take a look @ https://wiki.gentoo.org/wiki/Project:Python/Python.eclass_conversion#Python_byte-code_compilation"
>}
>python_mod_optimize () 
>{ 
>    die "${FUNCNAME}() is invalid for python-r1 suite, please take a look @ https://wiki.gentoo.org/wiki/Project:Python/Python.eclass_conversion#Python_byte-code_compilation"
>}
>python_moduleinto () 
>{ 
>    debug-print-function ${FUNCNAME} "${@}";
>    python_moduleroot=${1}
>}
>python_need_rebuild () 
>{ 
>    die "${FUNCNAME}() is invalid for python-r1 suite"
>}
>python_newexe () 
>{ 
>    debug-print-function ${FUNCNAME} "${@}";
>    [[ -n ${EPYTHON} ]] || die 'No Python implementation set (EPYTHON is null).';
>    [[ ${#} -eq 2 ]] || die "Usage: ${FUNCNAME} <path> <new-name>";
>    if [[ ${EAPI:-0} == [0123] ]]; then
>        die "python_do* and python_new* helpers are banned in EAPIs older than 4.";
>    fi;
>    local wrapd=${python_scriptroot:-/usr/bin};
>    local f=${1};
>    local newfn=${2};
>    local PYTHON_SCRIPTDIR d;
>    python_export PYTHON_SCRIPTDIR;
>    d=${PYTHON_SCRIPTDIR#${EPREFIX}};
>    ( dodir "${wrapd}";
>    exeopts -m 0755;
>    exeinto "${d}";
>    newexe "${f}" "${newfn}" || return ${?} );
>    _python_ln_rel "${ED%/}"/usr/lib/python-exec/python-exec2 "${ED%/}/${wrapd}/${newfn}" || die;
>    if [[ -n ${_PYTHON_REWRITE_SHEBANG} ]]; then
>        python_fix_shebang -q "${ED%/}/${d}/${newfn}";
>    fi
>}
>python_newscript () 
>{ 
>    debug-print-function ${FUNCNAME} "${@}";
>    local _PYTHON_REWRITE_SHEBANG=1;
>    python_newexe "${@}"
>}
>python_optimize () 
>{ 
>    debug-print-function ${FUNCNAME} "${@}";
>    if [[ ${EBUILD_PHASE} == pre* || ${EBUILD_PHASE} == post* ]]; then
>        eerror "The new Python eclasses expect the compiled Python files to";
>        eerror "be controlled by the Package Manager. For this reason,";
>        eerror "the python_optimize function can be used only during src_* phases";
>        eerror "(src_install most commonly) and not during pkg_* phases.";
>        echo;
>        die "python_optimize is not to be used in pre/post* phases";
>    fi;
>    [[ -n ${EPYTHON} ]] || die 'No Python implementation set (EPYTHON is null).';
>    local PYTHON=${PYTHON};
>    [[ -n ${PYTHON} ]] || python_export PYTHON;
>    if [[ ${#} -eq 0 ]]; then
>        local f;
>        while IFS= read -r -d '' f; do
>            if [[ ${f} == /* && -d ${D%/}${f} ]]; then
>                set -- "${D%/}${f}" "${@}";
>            fi;
>        done < <("${PYTHON}" -c 'import sys; print("\0".join(sys.path))' || die);
>        debug-print "${FUNCNAME}: using sys.path: ${*/%/;}";
>    fi;
>    local d;
>    for d in "$@";
>    do
>        local instpath=${d#${D%/}};
>        instpath=/${instpath##/};
>        case "${EPYTHON}" in 
>            python2.7 | python3.[34])
>                "${PYTHON}" -m compileall -q -f -d "${instpath}" "${d}";
>                "${PYTHON}" -OO -m compileall -q -f -d "${instpath}" "${d}"
>            ;;
>            python* | pypy3)
>                "${PYTHON}" -m compileall -q -f -d "${instpath}" "${d}";
>                "${PYTHON}" -O -m compileall -q -f -d "${instpath}" "${d}";
>                "${PYTHON}" -OO -m compileall -q -f -d "${instpath}" "${d}"
>            ;;
>            *)
>                "${PYTHON}" -m compileall -q -f -d "${instpath}" "${d}"
>            ;;
>        esac;
>    done
>}
>python_pkg_setup () 
>{ 
>    die "${FUNCNAME}() is invalid for python-r1 suite, please take a look @ https://wiki.gentoo.org/wiki/Project:Python/Python.eclass_conversion#pkg_setup"
>}
>python_replicate_script () 
>{ 
>    debug-print-function ${FUNCNAME} "${@}";
>    function _python_replicate_script () 
>    { 
>        local _PYTHON_FIX_SHEBANG_QUIET=1;
>        local PYTHON_SCRIPTDIR;
>        python_export PYTHON_SCRIPTDIR;
>        ( exeopts -m 0755;
>        exeinto "${PYTHON_SCRIPTDIR#${EPREFIX}}";
>        doexe "${files[@]}" );
>        python_fix_shebang -q "${files[@]/*\//${D%/}/${PYTHON_SCRIPTDIR}/}"
>    };
>    local files=("${@}");
>    python_foreach_impl _python_replicate_script;
>    unset -f _python_replicate_script;
>    local f;
>    for f in "$@";
>    do
>        _python_ln_rel "${ED%/}/usr/lib/python-exec/python-exec2" "${f}" || die;
>    done
>}
>python_scriptinto () 
>{ 
>    debug-print-function ${FUNCNAME} "${@}";
>    python_scriptroot=${1}
>}
>python_set_active_version () 
>{ 
>    die "${FUNCNAME}() is invalid for python-r1 suite, please take a look @ https://wiki.gentoo.org/wiki/Project:Python/Python.eclass_conversion#pkg_setup"
>}
>python_setup () 
>{ 
>    debug-print-function ${FUNCNAME} "${@}";
>    _python_validate_useflags;
>    local pycompat=("${PYTHON_COMPAT[@]}");
>    if [[ -n ${PYTHON_COMPAT_OVERRIDE} ]]; then
>        pycompat=(${PYTHON_COMPAT_OVERRIDE});
>    fi;
>    local has_check_deps;
>    declare -f python_check_deps > /dev/null && has_check_deps=1;
>    local found;
>    for ((i = ${#_PYTHON_SUPPORTED_IMPLS[@]} - 1; i >= 0; i-- ))
>    do
>        local impl=${_PYTHON_SUPPORTED_IMPLS[i]};
>        has "${impl}" "${pycompat[@]}" || continue;
>        if [[ ! -n ${PYTHON_COMPAT_OVERRIDE} && ! -n ${has_check_deps} ]]; then
>            use "python_targets_${impl}" || continue;
>        fi;
>        _python_impl_matches "${impl}" "${@-*}" || continue;
>        python_export "${impl}" EPYTHON PYTHON;
>        if [[ -n ${has_check_deps} ]]; then
>            python_is_installed "${impl}" || continue;
>            local PYTHON_USEDEP="python_targets_${impl}(-),python_single_target_${impl}(+)";
>            python_check_deps || continue;
>        fi;
>        found=1;
>        break;
>    done;
>    if [[ ! -n ${found} ]]; then
>        eerror "${FUNCNAME}: none of the enabled implementation matched the patterns.";
>        eerror "  patterns: ${@-'(*)'}";
>        eerror "Likely a REQUIRED_USE constraint (possibly USE-conditional) is missing.";
>        eerror "  suggested: || ( \$(python_gen_useflags ${@}) )";
>        eerror "(remember to quote all the patterns with '')";
>        die "${FUNCNAME}: no enabled implementation satisfy requirements";
>    fi;
>    python_wrapper_setup
>}
>python_wrapper_setup () 
>{ 
>    debug-print-function ${FUNCNAME} "${@}";
>    local workdir=${1:-${T}/${EPYTHON}};
>    local impl=${2:-${EPYTHON}};
>    [[ -n ${workdir} ]] || die "${FUNCNAME}: no workdir specified.";
>    [[ -n ${impl} ]] || die "${FUNCNAME}: no impl nor EPYTHON specified.";
>    if [[ ! -x ${workdir}/bin/python ]]; then
>        _python_check_dead_variables;
>        mkdir -p "${workdir}"/{bin,pkgconfig} || die;
>        rm -f "${workdir}"/bin/python{,2,3}{,-config} || die;
>        rm -f "${workdir}"/bin/2to3 || die;
>        rm -f "${workdir}"/pkgconfig/python{,2,3}.pc || die;
>        local EPYTHON PYTHON;
>        python_export "${impl}" EPYTHON PYTHON;
>        local pyver pyother;
>        if python_is_python3; then
>            pyver=3;
>            pyother=2;
>        else
>            pyver=2;
>            pyother=3;
>        fi;
>        cat > "${workdir}/bin/python" <<-_EOF_ || 
>#!/bin/sh
>exec "${PYTHON}" "\${@}"
>_EOF_
> die
>        cp "${workdir}/bin/python" "${workdir}/bin/python${pyver}" || die;
>        chmod +x "${workdir}/bin/python" "${workdir}/bin/python${pyver}" || die;
>        local nonsupp=("python${pyother}" "python${pyother}-config");
>        if [[ ${EPYTHON} == python* ]]; then
>            cat > "${workdir}/bin/python-config" <<-_EOF_ || 
>#!/bin/sh
>exec "${PYTHON}-config" "\${@}"
>_EOF_
> die
>            cp "${workdir}/bin/python-config" "${workdir}/bin/python${pyver}-config" || die;
>            chmod +x "${workdir}/bin/python-config" "${workdir}/bin/python${pyver}-config" || die;
>            ln -s "${PYTHON/python/2to3-}" "${workdir}"/bin/2to3 || die;
>            ln -s "${EPREFIX}"/usr/$(get_libdir)/pkgconfig/${EPYTHON/n/n-}.pc "${workdir}"/pkgconfig/python.pc || die;
>            ln -s python.pc "${workdir}"/pkgconfig/python${pyver}.pc || die;
>        else
>            nonsupp+=(2to3 python-config "python${pyver}-config");
>        fi;
>        local x;
>        for x in "${nonsupp[@]}";
>        do
>            cat > "${workdir}"/bin/${x} <<-_EOF_ || 
>#!/bin/sh
>echo "${ECLASS}: ${FUNCNAME}: ${x} is not supported by ${EPYTHON} (PYTHON_COMPAT)" >&2
>exit 127
>_EOF_
> die
>            chmod +x "${workdir}"/bin/${x} || die;
>        done;
>    fi;
>    if [[ ${PATH##:*} != ${workdir}/bin ]]; then
>        PATH=${workdir}/bin${PATH:+:${PATH}};
>    fi;
>    if [[ ${PKG_CONFIG_PATH##:*} != ${workdir}/pkgconfig ]]; then
>        PKG_CONFIG_PATH=${workdir}/pkgconfig${PKG_CONFIG_PATH:+:${PKG_CONFIG_PATH}};
>    fi;
>    export PATH PKG_CONFIG_PATH
>}
>raw-ldflags () 
>{ 
>    local x input="$@";
>    [[ -z ${input} ]] && input=${LDFLAGS};
>    set --;
>    for x in ${input};
>    do
>        case ${x} in 
>            -Wl,*)
>                x=${x#-Wl,};
>                set -- "$@" ${x//,/ }
>            ;;
>            *)
>
>            ;;
>        esac;
>    done;
>    echo "$@"
>}
>replace-cpu-flags () 
>{ 
>    local newcpu="$#";
>    newcpu="${!newcpu}";
>    while [ $# -gt 1 ]; do
>        replace-flags "-march=${1}" "-march=${newcpu}";
>        replace-flags "-mcpu=${1}" "-mcpu=${newcpu}";
>        replace-flags "-mtune=${1}" "-mtune=${newcpu}";
>        shift;
>    done;
>    return 0
>}
>replace-flags () 
>{ 
>    [[ $# != 2 ]] && die "Usage: replace-flags <old flag> <new flag>";
>    local f var new;
>    for var in $(all-flag-vars);
>    do
>        new=();
>        for f in ${!var};
>        do
>            [[ ${f} == ${1} ]] && f=${2};
>            new+=("${f}");
>        done;
>        export ${var}="${new[*]}";
>    done;
>    return 0
>}
>replace-sparc64-flags () 
>{ 
>    local SPARC64_CPUS="ultrasparc3 ultrasparc v9";
>    if [ "${CFLAGS/mtune}" != "${CFLAGS}" ]; then
>        for x in ${SPARC64_CPUS};
>        do
>            CFLAGS="${CFLAGS/-mcpu=${x}/-mcpu=v8}";
>        done;
>    else
>        for x in ${SPARC64_CPUS};
>        do
>            CFLAGS="${CFLAGS/-mcpu=${x}/-mcpu=v8 -mtune=${x}}";
>        done;
>    fi;
>    if [ "${CXXFLAGS/mtune}" != "${CXXFLAGS}" ]; then
>        for x in ${SPARC64_CPUS};
>        do
>            CXXFLAGS="${CXXFLAGS/-mcpu=${x}/-mcpu=v8}";
>        done;
>    else
>        for x in ${SPARC64_CPUS};
>        do
>            CXXFLAGS="${CXXFLAGS/-mcpu=${x}/-mcpu=v8 -mtune=${x}}";
>        done;
>    fi;
>    export CFLAGS CXXFLAGS
>}
>ros-catkin_python_setup () 
>{ 
>    local pyimpl="${PYTHON_COMPAT[0]}";
>    python_export "${pyimpl}" EPYTHON PYTHON;
>    python_wrapper_setup;
>    python_export PYTHON_SCRIPTDIR
>}
>ros-catkin_src_compile () 
>{ 
>    ros-catkin_python_setup;
>    cmake-utils_src_compile "${@}"
>}
>ros-catkin_src_configure () 
>{ 
>    ros-catkin_python_setup;
>    export CATKIN_PREFIX_PATH="${EPREFIX}/usr";
>    export ROS_ROOT="${EPREFIX}/usr/share/ros";
>    if [ -n "${CATKIN_HAS_MESSAGES}" ]; then
>        ROS_LANG_DISABLE="";
>        use ros_messages_cxx || ROS_LANG_DISABLE="${ROS_LANG_DISABLE}:gencpp";
>        use ros_messages_eus || ROS_LANG_DISABLE="${ROS_LANG_DISABLE}:geneus";
>        use ros_messages_lisp || ROS_LANG_DISABLE="${ROS_LANG_DISABLE}:genlisp";
>        use ros_messages_python || ROS_LANG_DISABLE="${ROS_LANG_DISABLE}:genpy";
>        use ros_messages_nodejs || ROS_LANG_DISABLE="${ROS_LANG_DISABLE}:gennodejs";
>        export ROS_LANG_DISABLE;
>    fi;
>    local mycmakeargs=("$(cmake-utils_use test CATKIN_ENABLE_TESTING)" "-DCATKIN_BUILD_BINARY_PACKAGE=ON" "-DCATKIN_PREFIX_PATH=${SYSROOT:-${EROOT}}/usr" "${mycatkincmakeargs[@]}");
>    local sitedir="$(python_get_sitedir)";
>    mycmakeargs+=(-DPYTHON_EXECUTABLE="${PYTHON}" -DPYTHON_INSTALL_DIR="${sitedir#${EPREFIX}/usr/}");
>    if [ -n "${CATKIN_IN_SOURCE_BUILD}" ]; then
>        export CMAKE_USE_DIR="${BUILD_DIR}";
>    fi;
>    cmake-utils_src_configure "${@}"
>}
>ros-catkin_src_install () 
>{ 
>    ros-catkin_python_setup;
>    if [ -n "${CATKIN_IN_SOURCE_BUILD}" ]; then
>        export CMAKE_USE_DIR="${BUILD_DIR}";
>    fi;
>    cmake-utils_src_install "${@}";
>    if [ ! -f "${T}/.catkin_python_symlinks_generated" -a -d "${D}/${PYTHON_SCRIPTDIR}" ]; then
>        dodir /usr/bin;
>        for i in "${D}/${PYTHON_SCRIPTDIR}"/*;
>        do
>            dosym ../lib/python-exec/python-exec2 "/usr/bin/${i##*/}";
>        done;
>        touch "${T}/.catkin_python_symlinks_generated" || die;
>    fi
>}
>ros-catkin_src_prepare () 
>{ 
>    [ -n "${CATKIN_IN_SOURCE_BUILD}" ] && export CMAKE_IN_SOURCE_BUILD=yes;
>    cmake-utils_src_prepare;
>    if [ ! -f "${S}/CMakeLists.txt" ]; then
>        catkin_init_workspace || die;
>    fi;
>    append-cxxflags '-std=c++11'
>}
>ros-catkin_src_test () 
>{ 
>    cd "${BUILD_DIR}" || die;
>    ros-catkin_python_setup;
>    if [ -f catkin_generated/generate_cached_setup.py ]; then
>        einfo "Regenerating setup_cached.sh for tests";
>        ${PYTHON:-python} catkin_generated/generate_cached_setup.py || die;
>    fi;
>    nonfatal cmake-utils_src_make tests;
>    cmake-utils_src_test "${@}"
>}
>run_in_build_dir () 
>{ 
>    debug-print-function ${FUNCNAME} "${@}";
>    local ret;
>    [[ ${#} -ne 0 ]] || die "${FUNCNAME}: no command specified.";
>    [[ -n ${BUILD_DIR} ]] || die "${FUNCNAME}: BUILD_DIR not set.";
>    mkdir -p "${BUILD_DIR}" || die;
>    pushd "${BUILD_DIR}" > /dev/null || die;
>    "${@}";
>    ret=${?};
>    popd > /dev/null || die;
>    return ${ret}
>}
>setup-allowed-flags () 
>{ 
>    ALLOWED_FLAGS=(-pipe -O '-O[12sg]' -mcpu -march -mtune '-fstack-protector*' '-fsanitize*' '-fstack-check*' -fno-stack-check -fbounds-check -fbounds-checking -fno-strict-overflow -fno-PIE -fno-pie -nopie -no-pie -fno-unit-at-a-time -g '-g[0-9]' -ggdb '-ggdb[0-9]' '-gdwarf-*' gstabs -gstabs+ -gz -fno-ident -fpermissive -frecord-gcc-switches '-fdiagnostics*' '-fplugin*' '-W*' -w '-[DUILR]*' '-Wl,*' '-fuse-ld');
>    ALLOWED_FLAGS+=('-fno-stack-protector*' '-fabi-version=*' -fno-strict-aliasing -fno-bounds-check -fno-bounds-checking -fstrict-overflow -fno-omit-frame-pointer '-fno-builtin*');
>    ALLOWED_FLAGS+=(-mregparm -mno-app-regs -mapp-regs -mno-mmx -mno-sse -mno-sse2 -mno-sse3 -mno-ssse3 -mno-sse4 -mno-sse4.1 -mno-sse4.2 -mno-avx -mno-aes -mno-pclmul -mno-sse4a -mno-3dnow -mno-popcnt -mno-abm -mips1 -mips2 -mips3 -mips4 -mips32 -mips64 -mips16 -mplt -msoft-float -mno-soft-float -mhard-float -mno-hard-float -mfpu -mieee -mieee-with-inexact -mschedule -mfloat-gprs -mspe -mno-spe -mtls-direct-seg-refs -mno-tls-direct-seg-refs -mflat -mno-flat -mno-faster-structs -mfaster-structs -m32 -m64 -mx32 -mabi -mlittle-endian -mbig-endian -EL -EB -fPIC -mlive-g0 -mcmodel -mstack-bias -mno-stack-bias -msecure-plt '-m*-toc' -mfloat-abi -mfix-r10000 -mno-fix-r10000 -mthumb -marm -mno-fma4 -mno-movbe -mno-xop -mno-lwp -mno-fsgsbase -mno-rdrnd -mno-f16c -mno-bmi -mno-tbm -mno-avx2 -mno-bmi2 -mno-fma -mno-lzcnt -mno-fxsr -mno-hle -mno-rtm -mno-xsave -mno-xsaveopt -mno-avx512cd -mno-avx512er -mno-avx512f -mno-avx512pf -mno-sha);
>    ALLOWED_FLAGS+=(-mstackrealign)
>}
>src_compile () 
>{ 
>    ros-catkin_src_compile "$@"
>}
>src_configure () 
>{ 
>    ros-catkin_src_configure "$@"
>}
>src_install () 
>{ 
>    ros-catkin_src_install "$@"
>}
>src_prepare () 
>{ 
>    ros-catkin_src_prepare "$@"
>}
>src_test () 
>{ 
>    ros-catkin_src_test "$@"
>}
>src_unpack () 
>{ 
>    default
>}
>strip-flags () 
>{ 
>    local x y var;
>    local ALLOWED_FLAGS;
>    setup-allowed-flags;
>    set -f;
>    for var in $(all-flag-vars);
>    do
>        local new=();
>        for x in ${!var};
>        do
>            local flag=${x%%=*};
>            for y in "${ALLOWED_FLAGS[@]}";
>            do
>                if [[ -z ${flag%%${y}} ]]; then
>                    new+=("${x}");
>                    break;
>                fi;
>            done;
>        done;
>        if _is_flagq ${var} "-O*" && ! _is_flagq new "-O*"; then
>            new+=(-O2);
>        fi;
>        if [[ ${!var} != "${new[*]}" ]]; then
>            einfo "strip-flags: ${var}: changed '${!var}' to '${new[*]}'";
>        fi;
>        export ${var}="${new[*]}";
>    done;
>    set +f;
>    return 0
>}
>strip-linguas () 
>{ 
>    local ls newls nols;
>    if [[ $1 == "-i" ]] || [[ $1 == "-u" ]]; then
>        local op=$1;
>        shift;
>        ls=$(find "$1" -name '*.po' -exec basename {} .po ';');
>        shift;
>        local d f;
>        for d in "$@";
>        do
>            if [[ ${op} == "-u" ]]; then
>                newls=${ls};
>            else
>                newls="";
>            fi;
>            for f in $(find "$d" -name '*.po' -exec basename {} .po ';');
>            do
>                if [[ ${op} == "-i" ]]; then
>                    has ${f} ${ls} && newls="${newls} ${f}";
>                else
>                    has ${f} ${ls} || newls="${newls} ${f}";
>                fi;
>            done;
>            ls=${newls};
>        done;
>    else
>        ls="$@";
>    fi;
>    nols="";
>    newls="";
>    for f in ${LINGUAS};
>    do
>        if has ${f} ${ls}; then
>            newls="${newls} ${f}";
>        else
>            nols="${nols} ${f}";
>        fi;
>    done;
>    [[ -n ${nols} ]] && einfo "Sorry, but ${PN} does not support the LINGUAS:" ${nols};
>    export LINGUAS=${newls:1}
>}
>strip-unsupported-flags () 
>{ 
>    export CFLAGS=$(test-flags-CC ${CFLAGS});
>    export CXXFLAGS=$(test-flags-CXX ${CXXFLAGS});
>    export FFLAGS=$(test-flags-F77 ${FFLAGS});
>    export FCFLAGS=$(test-flags-FC ${FCFLAGS});
>    export LDFLAGS=$(test-flags-CC ${LDFLAGS})
>}
>tc-arch () 
>{ 
>    tc-ninja_magic_to_arch portage "$@"
>}
>tc-arch-kernel () 
>{ 
>    tc-ninja_magic_to_arch kern "$@"
>}
>tc-check-openmp () 
>{ 
>    if ! tc-has-openmp; then
>        eerror "Your current compiler does not support OpenMP!";
>        if tc-is-gcc; then
>            eerror "Enable OpenMP support by building sys-devel/gcc with USE=\"openmp\".";
>        else
>            if tc-is-clang; then
>                eerror "OpenMP support in sys-devel/clang is provided by sys-libs/libomp.";
>            fi;
>        fi;
>        die "Active compiler does not have required support for OpenMP";
>    fi
>}
>tc-cpp-is-true () 
>{ 
>    local CONDITION=${1};
>    shift;
>    local RESULT=$($(tc-getTARGET_CPP) "${@}" -P - <<-EOF 2>/dev/null
>			#if ${CONDITION}
>			true
>			#endif
>		EOF
>	);
>    [[ ${RESULT} == true ]]
>}
>tc-detect-is-softfloat () 
>{ 
>    [[ $(tc-getTARGET_CPP) == "gcc -E" ]] && return 1;
>    case ${CTARGET:-${CHOST}} in 
>        *-newlib | *-elf | *-eabi)
>            return 1
>        ;;
>        arm*)
>            if tc-cpp-is-true "defined(__ARM_PCS_VFP)"; then
>                echo "no";
>            else
>                if tc-cpp-is-true "defined(__SOFTFP__)"; then
>                    echo "yes";
>                else
>                    echo "softfp";
>                fi;
>            fi;
>            return 0
>        ;;
>        *)
>            return 1
>        ;;
>    esac
>}
>tc-enables-pie () 
>{ 
>    tc-cpp-is-true "defined(__PIE__)" ${CPPFLAGS} ${CFLAGS}
>}
>tc-enables-ssp () 
>{ 
>    tc-cpp-is-true "defined(__SSP__) || defined(__SSP_STRONG__) || defined(__SSP_ALL__)" ${CPPFLAGS} ${CFLAGS}
>}
>tc-enables-ssp-all () 
>{ 
>    tc-cpp-is-true "defined(__SSP_ALL__)" ${CPPFLAGS} ${CFLAGS}
>}
>tc-enables-ssp-strong () 
>{ 
>    tc-cpp-is-true "defined(__SSP_STRONG__) || defined(__SSP_ALL__)" ${CPPFLAGS} ${CFLAGS}
>}
>tc-endian () 
>{ 
>    local host=$1;
>    [[ -z ${host} ]] && host=${CTARGET:-${CHOST}};
>    host=${host%%-*};
>    case ${host} in 
>        aarch64*be)
>            echo big
>        ;;
>        aarch64)
>            echo little
>        ;;
>        alpha*)
>            echo little
>        ;;
>        arm*b*)
>            echo big
>        ;;
>        arm*)
>            echo little
>        ;;
>        cris*)
>            echo little
>        ;;
>        hppa*)
>            echo big
>        ;;
>        i?86*)
>            echo little
>        ;;
>        ia64*)
>            echo little
>        ;;
>        m68*)
>            echo big
>        ;;
>        mips*l*)
>            echo little
>        ;;
>        mips*)
>            echo big
>        ;;
>        powerpc*le)
>            echo little
>        ;;
>        powerpc*)
>            echo big
>        ;;
>        riscv*)
>            echo little
>        ;;
>        s390*)
>            echo big
>        ;;
>        sh*b*)
>            echo big
>        ;;
>        sh*)
>            echo little
>        ;;
>        sparc*)
>            echo big
>        ;;
>        x86_64*)
>            echo little
>        ;;
>        *)
>            echo wtf
>        ;;
>    esac
>}
>tc-env_build () 
>{ 
>    tc-export_build_env;
>    CFLAGS=${BUILD_CFLAGS} CXXFLAGS=${BUILD_CXXFLAGS} CPPFLAGS=${BUILD_CPPFLAGS} LDFLAGS=${BUILD_LDFLAGS} AR=$(tc-getBUILD_AR) AS=$(tc-getBUILD_AS) CC=$(tc-getBUILD_CC) CPP=$(tc-getBUILD_CPP) CXX=$(tc-getBUILD_CXX) LD=$(tc-getBUILD_LD) NM=$(tc-getBUILD_NM) PKG_CONFIG=$(tc-getBUILD_PKG_CONFIG) RANLIB=$(tc-getBUILD_RANLIB) "$@"
>}
>tc-export () 
>{ 
>    local var;
>    for var in "$@";
>    do
>        [[ $(type -t "tc-get${var}") != "function" ]] && die "tc-export: invalid export variable '${var}'";
>        "tc-get${var}" > /dev/null;
>    done
>}
>tc-export_build_env () 
>{ 
>    tc-export "$@";
>    if tc-is-cross-compiler; then
>        : ${BUILD_CFLAGS:=-O1 -pipe};
>        : ${BUILD_CXXFLAGS:=-O1 -pipe};
>        : ${BUILD_CPPFLAGS:= };
>        : ${BUILD_LDFLAGS:= };
>    else
>        : ${BUILD_CFLAGS:=${CFLAGS}};
>        : ${BUILD_CXXFLAGS:=${CXXFLAGS}};
>        : ${BUILD_CPPFLAGS:=${CPPFLAGS}};
>        : ${BUILD_LDFLAGS:=${LDFLAGS}};
>    fi;
>    export BUILD_{C,CXX,CPP,LD}FLAGS;
>    local v;
>    for v in BUILD_{C,CXX,CPP,LD}FLAGS;
>    do
>        export ${v#BUILD_}_FOR_BUILD="${!v}";
>    done
>}
>tc-get-compiler-type () 
>{ 
>    local code='
>#if defined(__PATHSCALE__)
>	HAVE_PATHCC
>#elif defined(__clang__)
>	HAVE_CLANG
>#elif defined(__GNUC__)
>	HAVE_GCC
>#endif
>';
>    local res=$($(tc-getCPP "$@") -E -P - <<<"${code}");
>    case ${res} in 
>        *HAVE_PATHCC*)
>            echo pathcc
>        ;;
>        *HAVE_CLANG*)
>            echo clang
>        ;;
>        *HAVE_GCC*)
>            echo gcc
>        ;;
>        *)
>            echo unknown
>        ;;
>    esac
>}
>tc-getAR () 
>{ 
>    tc-getPROG AR ar "$@"
>}
>tc-getAS () 
>{ 
>    tc-getPROG AS as "$@"
>}
>tc-getBUILD_AR () 
>{ 
>    tc-getBUILD_PROG AR ar "$@"
>}
>tc-getBUILD_AS () 
>{ 
>    tc-getBUILD_PROG AS as "$@"
>}
>tc-getBUILD_CC () 
>{ 
>    tc-getBUILD_PROG CC gcc "$@"
>}
>tc-getBUILD_CPP () 
>{ 
>    tc-getBUILD_PROG CPP "$(tc-getBUILD_CC) -E" "$@"
>}
>tc-getBUILD_CXX () 
>{ 
>    tc-getBUILD_PROG CXX g++ "$@"
>}
>tc-getBUILD_LD () 
>{ 
>    tc-getBUILD_PROG LD ld "$@"
>}
>tc-getBUILD_NM () 
>{ 
>    tc-getBUILD_PROG NM nm "$@"
>}
>tc-getBUILD_OBJCOPY () 
>{ 
>    tc-getBUILD_PROG OBJCOPY objcopy "$@"
>}
>tc-getBUILD_PKG_CONFIG () 
>{ 
>    tc-getBUILD_PROG PKG_CONFIG pkg-config "$@"
>}
>tc-getBUILD_PROG () 
>{ 
>    local vars="BUILD_$1 $1_FOR_BUILD HOST$1";
>    tc-is-cross-compiler || vars+=" $1";
>    _tc-getPROG CBUILD "${vars}" "${@:2}"
>}
>tc-getBUILD_RANLIB () 
>{ 
>    tc-getBUILD_PROG RANLIB ranlib "$@"
>}
>tc-getBUILD_STRIP () 
>{ 
>    tc-getBUILD_PROG STRIP strip "$@"
>}
>tc-getCC () 
>{ 
>    tc-getPROG CC gcc "$@"
>}
>tc-getCPP () 
>{ 
>    tc-getPROG CPP "${CC:-gcc} -E" "$@"
>}
>tc-getCXX () 
>{ 
>    tc-getPROG CXX g++ "$@"
>}
>tc-getDLLWRAP () 
>{ 
>    tc-getPROG DLLWRAP dllwrap "$@"
>}
>tc-getF77 () 
>{ 
>    tc-getPROG F77 gfortran "$@"
>}
>tc-getFC () 
>{ 
>    tc-getPROG FC gfortran "$@"
>}
>tc-getGCJ () 
>{ 
>    tc-getPROG GCJ gcj "$@"
>}
>tc-getGO () 
>{ 
>    tc-getPROG GO gccgo "$@"
>}
>tc-getLD () 
>{ 
>    tc-getPROG LD ld "$@"
>}
>tc-getNM () 
>{ 
>    tc-getPROG NM nm "$@"
>}
>tc-getOBJCOPY () 
>{ 
>    tc-getPROG OBJCOPY objcopy "$@"
>}
>tc-getOBJDUMP () 
>{ 
>    tc-getPROG OBJDUMP objdump "$@"
>}
>tc-getPKG_CONFIG () 
>{ 
>    tc-getPROG PKG_CONFIG pkg-config "$@"
>}
>tc-getPROG () 
>{ 
>    _tc-getPROG CHOST "$@"
>}
>tc-getRANLIB () 
>{ 
>    tc-getPROG RANLIB ranlib "$@"
>}
>tc-getRC () 
>{ 
>    tc-getPROG RC windres "$@"
>}
>tc-getSTRIP () 
>{ 
>    tc-getPROG STRIP strip "$@"
>}
>tc-getTARGET_CPP () 
>{ 
>    if [[ -n ${CTARGET} ]]; then
>        _tc-getPROG CTARGET TARGET_CPP "gcc -E" "$@";
>    else
>        tc-getCPP "$@";
>    fi
>}
>tc-has-openmp () 
>{ 
>    local base="${T}/test-tc-openmp";
>    cat <<-EOF > "${base}.c"
>#include <omp.h>
>int main() {
>int nthreads, tid, ret = 0;
>#pragma omp parallel private(nthreads, tid)
>{
>tid = omp_get_thread_num();
>nthreads = omp_get_num_threads(); ret += tid + nthreads;
>}
>return ret;
>}
>EOF
>
>    $(tc-getCC "$@") -fopenmp "${base}.c" -o "${base}" &> /dev/null;
>    local ret=$?;
>    rm -f "${base}"*;
>    return ${ret}
>}
>tc-has-tls () 
>{ 
>    local base="${T}/test-tc-tls";
>    cat <<-EOF > "${base}.c"
>int foo(int *i) {
>static __thread int j = 0;
>return *i ? j : *i;
>}
>EOF
>
>    local flags;
>    case $1 in 
>        -s)
>            flags="-S"
>        ;;
>        -c)
>            flags="-c"
>        ;;
>        -l)
>
>        ;;
>        -*)
>            die "Usage: tc-has-tls [-c|-l] [toolchain prefix]"
>        ;;
>    esac;
>    : ${flags:=-fPIC -shared -Wl,-z,defs};
>    [[ $1 == -* ]] && shift;
>    $(tc-getCC "$@") ${flags} "${base}.c" -o "${base}" &> /dev/null;
>    local ret=$?;
>    rm -f "${base}"*;
>    return ${ret}
>}
>tc-is-clang () 
>{ 
>    [[ $(tc-get-compiler-type) == clang ]]
>}
>tc-is-cross-compiler () 
>{ 
>    [[ ${CBUILD:-${CHOST}} != ${CHOST} ]]
>}
>tc-is-gcc () 
>{ 
>    [[ $(tc-get-compiler-type) == gcc ]]
>}
>tc-is-softfloat () 
>{ 
>    tc-detect-is-softfloat || tc-tuple-is-softfloat
>}
>tc-is-static-only () 
>{ 
>    local host=${CTARGET:-${CHOST}};
>    [[ ${host} == *-mint* ]]
>}
>tc-ld-disable-gold () 
>{ 
>    if ! tc-ld-is-gold "$@"; then
>        return;
>    fi;
>    ewarn "Forcing usage of the BFD linker instead of GOLD";
>    local ld=$(tc-getLD "$@");
>    local bfd_ld="${ld%% *}.bfd";
>    local path_ld=$(which "${bfd_ld}" 2>/dev/null);
>    [[ -e ${path_ld} ]] && export LD=${bfd_ld};
>    local fallback="true";
>    if tc-is-gcc; then
>        local major=$(gcc-major-version "$@");
>        local minor=$(gcc-minor-version "$@");
>        if [[ ${major} -gt 4 ]] || [[ ${major} -eq 4 && ${minor} -ge 8 ]]; then
>            export LDFLAGS="${LDFLAGS} -fuse-ld=bfd";
>            fallback="false";
>        fi;
>    else
>        if tc-is-clang; then
>            local major=$(clang-major-version "$@");
>            local minor=$(clang-minor-version "$@");
>            if [[ ${major} -gt 3 ]] || [[ ${major} -eq 3 && ${minor} -ge 5 ]]; then
>                export LDFLAGS="${LDFLAGS} -fuse-ld=bfd";
>                fallback="false";
>            fi;
>        fi;
>    fi;
>    if [[ ${fallback} == "true" ]]; then
>        if [[ -e ${path_ld} ]]; then
>            local d="${T}/bfd-linker";
>            mkdir -p "${d}";
>            ln -sf "${path_ld}" "${d}"/ld;
>            export LDFLAGS="${LDFLAGS} -B${d}";
>        else
>            die "unable to locate a BFD linker to bypass gold";
>        fi;
>    fi
>}
>tc-ld-is-gold () 
>{ 
>    local out;
>    out=$($(tc-getLD "$@") --version 2>&1);
>    if [[ ${out} == *"GNU gold"* ]]; then
>        return 0;
>    fi;
>    local base="${T}/test-tc-gold";
>    cat <<-EOF > "${base}.c"
>int main() { return 0; }
>EOF
>
>    out=$($(tc-getCC "$@") ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} -Wl,--version "${base}.c" -o "${base}" 2>&1);
>    rm -f "${base}"*;
>    if [[ ${out} == *"GNU gold"* ]]; then
>        return 0;
>    fi;
>    return 1
>}
>tc-ninja_magic_to_arch () 
>{ 
>    function ninj () 
>    { 
>        [[ ${type} == "kern" ]] && echo $1 || echo $2
>    };
>    local type=$1;
>    local host=$2;
>    [[ -z ${host} ]] && host=${CTARGET:-${CHOST}};
>    case ${host} in 
>        aarch64*)
>            echo arm64
>        ;;
>        alpha*)
>            echo alpha
>        ;;
>        arm*)
>            echo arm
>        ;;
>        avr*)
>            ninj avr32 avr
>        ;;
>        bfin*)
>            ninj blackfin bfin
>        ;;
>        c6x*)
>            echo c6x
>        ;;
>        cris*)
>            echo cris
>        ;;
>        frv*)
>            echo frv
>        ;;
>        hexagon*)
>            echo hexagon
>        ;;
>        hppa*)
>            ninj parisc hppa
>        ;;
>        i?86*)
>            if [[ ${type} == "kern" && ${host} == *freebsd* ]]; then
>                echo i386;
>            else
>                echo x86;
>            fi
>        ;;
>        ia64*)
>            echo ia64
>        ;;
>        m68*)
>            echo m68k
>        ;;
>        metag*)
>            echo metag
>        ;;
>        microblaze*)
>            echo microblaze
>        ;;
>        mips*)
>            echo mips
>        ;;
>        nios2*)
>            echo nios2
>        ;;
>        nios*)
>            echo nios
>        ;;
>        or1k | or32*)
>            echo openrisc
>        ;;
>        powerpc*)
>            if [[ ${type} == "kern" ]]; then
>                echo powerpc;
>            else
>                if [[ ${host} == powerpc64* ]]; then
>                    echo ppc64;
>                else
>                    echo ppc;
>                fi;
>            fi
>        ;;
>        riscv*)
>            echo riscv
>        ;;
>        s390*)
>            echo s390
>        ;;
>        score*)
>            echo score
>        ;;
>        sh64*)
>            ninj sh64 sh
>        ;;
>        sh*)
>            echo sh
>        ;;
>        sparc64*)
>            ninj sparc64 sparc
>        ;;
>        sparc*)
>            [[ ${PROFILE_ARCH} == "sparc64" ]] && ninj sparc64 sparc || echo sparc
>        ;;
>        tile*)
>            echo tile
>        ;;
>        vax*)
>            echo vax
>        ;;
>        x86_64*freebsd*)
>            echo amd64
>        ;;
>        x86_64*)
>            if [[ ${type} == "kern" ]]; then
>                echo x86;
>            else
>                echo amd64;
>            fi
>        ;;
>        xtensa*)
>            echo xtensa
>        ;;
>        *)
>            echo unknown
>        ;;
>    esac
>}
>tc-stack-grows-down () 
>{ 
>    case ${ARCH} in 
>        hppa | metag)
>            return 1
>        ;;
>    esac;
>    return 0
>}
>tc-tuple-is-softfloat () 
>{ 
>    local CTARGET=${CTARGET:-${CHOST}};
>    case ${CTARGET//_/-} in 
>        bfin* | h8300*)
>            echo "only"
>        ;;
>        *-softfloat-*)
>            echo "yes"
>        ;;
>        *-softfp-*)
>            echo "softfp"
>        ;;
>        arm*-hardfloat-* | arm*eabihf)
>            echo "no"
>        ;;
>        *-newlib | *-elf | *-eabi)
>            echo "no"
>        ;;
>        arm*)
>            echo "yes"
>        ;;
>        *)
>            echo "no"
>        ;;
>    esac
>}
>test-flag-CC () 
>{ 
>    test-flag-PROG "CC" c "$@"
>}
>test-flag-CXX () 
>{ 
>    test-flag-PROG "CXX" c++ "$@"
>}
>test-flag-F77 () 
>{ 
>    test-flag-PROG "F77" f77 "$@"
>}
>test-flag-FC () 
>{ 
>    test-flag-PROG "FC" f95 "$@"
>}
>test-flag-PROG () 
>{ 
>    local comp=$1;
>    local lang=$2;
>    shift 2;
>    [[ -z ${comp} || -z $1 ]] && return 1;
>    local cmdline=($(tc-get${comp}) -Werror -c -o /dev/null);
>    if "${cmdline[@]}" -x${lang} - < /dev/null &> /dev/null; then
>        cmdline+=("$@" -x${lang} -);
>    else
>        cmdline+=("$@" -c -o /dev/null /dev/null);
>    fi;
>    if ! "${cmdline[@]}" < /dev/null &> /dev/null; then
>        cmdline+=(-Qunused-arguments);
>        "${cmdline[@]}" < /dev/null &> /dev/null;
>    fi
>}
>test-flags () 
>{ 
>    test-flags-CC "$@"
>}
>test-flags-CC () 
>{ 
>    test-flags-PROG "CC" "$@"
>}
>test-flags-CXX () 
>{ 
>    test-flags-PROG "CXX" "$@"
>}
>test-flags-F77 () 
>{ 
>    test-flags-PROG "F77" "$@"
>}
>test-flags-FC () 
>{ 
>    test-flags-PROG "FC" "$@"
>}
>test-flags-PROG () 
>{ 
>    local comp=$1;
>    local flags=();
>    local x;
>    shift;
>    [[ -z ${comp} ]] && return 1;
>    while (( $# )); do
>        case "$1" in 
>            --param | -B)
>                if test-flag-${comp} "$1" "$2"; then
>                    flags+=("$1" "$2");
>                fi;
>                shift 2
>            ;;
>            *)
>                if test-flag-${comp} "$1"; then
>                    flags+=("$1");
>                fi;
>                shift 1
>            ;;
>        esac;
>    done;
>    echo "${flags[*]}";
>    [[ ${#flags[@]} -gt 0 ]]
>}
>test_version_info () 
>{ 
>    if [[ $($(tc-getCC) --version 2>&1) == *$1* ]]; then
>        return 0;
>    else
>        return 1;
>    fi
>}
>use_if_iuse () 
>{ 
>    in_iuse $1 || return 1;
>    use $1
>}
>xdg_desktop_database_update () 
>{ 
>    if [[ ${EBUILD_PHASE} != post* ]]; then
>        die "xdg_desktop_database_update must be used in pkg_post* phases.";
>    fi;
>    if ! type update-desktop-database &> /dev/null; then
>        debug-print "update-desktop-database is not found";
>        return;
>    fi;
>    ebegin "Updating .desktop files database";
>    update-desktop-database -q "${EROOT%/}${DESKTOP_DATABASE_DIR}";
>    eend $?
>}
>xdg_environment_reset () 
>{ 
>    export XDG_DATA_HOME="${HOME}/.local/share";
>    export XDG_CONFIG_HOME="${HOME}/.config";
>    export XDG_CACHE_HOME="${HOME}/.cache";
>    export XDG_RUNTIME_DIR="${T}/run";
>    mkdir -p "${XDG_DATA_HOME}" "${XDG_CONFIG_HOME}" "${XDG_CACHE_HOME}" "${XDG_RUNTIME_DIR}" || die;
>    chmod 0700 "${XDG_RUNTIME_DIR}" || die;
>    unset DBUS_SESSION_BUS_ADDRESS
>}
>xdg_icon_cache_update () 
>{ 
>    if [[ ${EBUILD_PHASE} != post* ]]; then
>        die "xdg_icon_cache_update must be used in pkg_post* phases.";
>    fi;
>    if ! type gtk-update-icon-cache &> /dev/null; then
>        debug-print "gtk-update-icon-cache is not found";
>        return;
>    fi;
>    ebegin "Updating icons cache";
>    local retval=0;
>    local fails=();
>    for dir in "${EROOT%/}"/usr/share/icons/*;
>    do
>        if [[ -f "${dir}/index.theme" ]]; then
>            local rv=0;
>            gtk-update-icon-cache -qf "${dir}";
>            rv=$?;
>            if [[ ! $rv -eq 0 ]]; then
>                debug-print "Updating cache failed on ${dir}";
>                fails+=("${dir}");
>                retval=2;
>            fi;
>        else
>            if [[ $(ls "${dir}") = "icon-theme.cache" ]]; then
>                rm "${dir}/icon-theme.cache";
>            fi;
>        fi;
>        if [[ -z $(ls "${dir}") ]]; then
>            rmdir "${dir}";
>        fi;
>    done;
>    eend ${retval};
>    for f in "${fails[@]}";
>    do
>        eerror "Failed to update cache with icon $f";
>    done
>}
>xdg_mimeinfo_database_update () 
>{ 
>    if [[ ${EBUILD_PHASE} != post* ]]; then
>        die "xdg_mimeinfo_database_update must be used in pkg_post* phases.";
>    fi;
>    if ! type update-mime-database &> /dev/null; then
>        debug-print "update-mime-database is not found";
>        return;
>    fi;
>    ebegin "Updating shared mime info database";
>    update-mime-database "${EROOT%/}${MIMEINFO_DATABASE_DIR}";
>    eend $?
>}

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Attachments on bug 691010: 584994 | 584996 | 584998 | 585000 | 585002 | 585004 | 585006 | 585008