* Package:    sys-devel/ct-ng-1.23.0
 * Repository: gentoo
 * Maintainer: blueness@gentoo.org
 * USE:        abi_x86_64 amd64 elibc_glibc kernel_linux userland_GNU
 * FEATURES:   network-sandbox preserve-libs sandbox userpriv usersandbox
>>> Unpacking source...
>>> Unpacking crosstool-ng-1.23.0.tar.bz2 to /var/tmp/portage/sys-devel/ct-ng-1.23.0/work
>>> Source unpacked in /var/tmp/portage/sys-devel/ct-ng-1.23.0/work
>>> Preparing source in /var/tmp/portage/sys-devel/ct-ng-1.23.0/work/crosstool-ng-1.23.0 ...
>>> Source prepared.
>>> Configuring source in /var/tmp/portage/sys-devel/ct-ng-1.23.0/work/crosstool-ng-1.23.0 ...
 * econf: updating crosstool-ng-1.23.0/scripts/config.sub with /usr/share/gnuconfig/config.sub
 * econf: updating crosstool-ng-1.23.0/scripts/config.guess with /usr/share/gnuconfig/config.guess
./configure --prefix=/usr --build=x86_64-pc-linux-gnu --host=x86_64-pc-linux-gnu --mandir=/usr/share/man --infodir=/usr/share/info --datadir=/usr/share --sysconfdir=/etc --localstatedir=/var/lib --libdir=/usr/lib64
checking build system type... x86_64-pc-linux-gnu
checking host system type... x86_64-pc-linux-gnu
checking for a BSD-compatible install... /usr/lib/portage/python3.6/ebuild-helpers/xattr/install -c
checking for x86_64-pc-linux-gnu-ggrep... no
checking for x86_64-pc-linux-gnu-grep... no
checking for ggrep... no
checking for grep... grep
checking for absolute path to grep... /bin/grep
checking for x86_64-pc-linux-gnu-gegrep... no
checking for x86_64-pc-linux-gnu-egrep... no
checking for gegrep... no
checking for egrep... egrep
checking for absolute path to egrep... /bin/egrep
checking for grep that handles long lines and -e... /bin/grep
checking for egrep... /bin/grep -E
checking for sed... /bin/sed
checking for GNU sed >= 4.0... yes
checking whether ln -s works... yes
checking for x86_64-pc-linux-gnu-gcc... x86_64-pc-linux-gnu-gcc
checking whether the C compiler works... yes
checking for C compiler default output file name... a.out
checking for suffix of executables... 
checking whether we are cross compiling... no
checking for suffix of object files... o
checking whether we are using the GNU C compiler... yes
checking whether x86_64-pc-linux-gnu-gcc accepts -g... yes
checking for x86_64-pc-linux-gnu-gcc option to accept ISO C89... none needed
checking for x86_64-pc-linux-gnu-g++... x86_64-pc-linux-gnu-g++
checking whether we are using the GNU C++ compiler... yes
checking whether x86_64-pc-linux-gnu-g++ accepts -g... yes
checking how to run the C preprocessor... x86_64-pc-linux-gnu-gcc -E
checking if x86_64-pc-linux-gnu-gcc can static link... yes
checking for x86_64-pc-linux-gnu-ranlib... x86_64-pc-linux-gnu-ranlib
checking for x86_64-pc-linux-gnu-gobjcopy... no
checking for x86_64-pc-linux-gnu-objcopy... x86_64-pc-linux-gnu-objcopy
checking for absolute path to x86_64-pc-linux-gnu-objcopy... /usr/bin/x86_64-pc-linux-gnu-objcopy
checking for x86_64-pc-linux-gnu-gobjdump... no
checking for x86_64-pc-linux-gnu-objdump... x86_64-pc-linux-gnu-objdump
checking for absolute path to x86_64-pc-linux-gnu-objdump... /usr/bin/x86_64-pc-linux-gnu-objdump
checking for x86_64-pc-linux-gnu-greadelf... no
checking for x86_64-pc-linux-gnu-readelf... x86_64-pc-linux-gnu-readelf
checking for absolute path to x86_64-pc-linux-gnu-readelf... /usr/bin/x86_64-pc-linux-gnu-readelf
checking for x86_64-pc-linux-gnu-gperf... no
checking for gperf... gperf
checking for absolute path to gperf... /usr/bin/gperf
checking for bison... bison
checking for flex... flex
checking for makeinfo... makeinfo
checking for cut... cut
checking for readlink... readlink
checking for tar... tar
checking for gzip... gzip
checking for bzip2... bzip2
checking for xz... xz
checking for help2man... help2man
checking for wget... wget
checking for curl... curl
checking for stat... stat
checking whether stat takes GNU or BSD format... GNU
checking whether to use getconf or sysctl to count CPUs... getconf _NPROCESSORS_ONLN
checking for x86_64-pc-linux-gnu-gpatch... no
checking for x86_64-pc-linux-gnu-patch... no
checking for gpatch... no
checking for patch... patch
checking for absolute path to patch... /usr/bin/patch
checking for bash... /bin/bash
checking for GNU bash >= 3.1... no
configure: error: Required tool not found: GNU bash >= 3.1

!!! Please attach the following file when seeking support:
!!! /var/tmp/portage/sys-devel/ct-ng-1.23.0/work/crosstool-ng-1.23.0/config.log
 * ERROR: sys-devel/ct-ng-1.23.0::gentoo failed (configure phase):
 *   econf failed
 * 
 * Call stack:
 *               ebuild.sh, line 124:  Called src_configure
 *             environment, line 874:  Called default
 *      phase-functions.sh, line 868:  Called default_src_configure
 *      phase-functions.sh, line 903:  Called __eapi2_src_configure
 *        phase-helpers.sh, line 835:  Called econf
 *        phase-helpers.sh, line 718:  Called __helpers_die 'econf failed'
 *   isolated-functions.sh, line 119:  Called die
 * The specific snippet of code:
 *   		die "$@"
 * 
 * If you need support, post the output of `emerge --info '=sys-devel/ct-ng-1.23.0::gentoo'`,
 * the complete build log and the output of `emerge -pqv '=sys-devel/ct-ng-1.23.0::gentoo'`.
 * The complete build log is located at '/var/log/portage/sys-devel:ct-ng-1.23.0:20190130-081935.log'.
 * For convenience, a symlink to the build log is located at '/var/tmp/portage/sys-devel/ct-ng-1.23.0/temp/build.log'.
 * The ebuild environment file is located at '/var/tmp/portage/sys-devel/ct-ng-1.23.0/temp/environment'.
 * Working directory: '/var/tmp/portage/sys-devel/ct-ng-1.23.0/work/crosstool-ng-1.23.0'
 * S: '/var/tmp/portage/sys-devel/ct-ng-1.23.0/work/crosstool-ng-1.23.0'