Run "crossdev -t i686-mingw32" to install a Windows cross compiler, then run "i686-mingw32-emerge boost" and the compilation fails with: "i686-mingw32-g++" -o "bin.v2/libs/math/build/gcc-mingw-4.3/gentoorelease/pch-off/libboost_math_c99-1_42.so.1.42.0" -Wl,-h -Wl,libboost_math_c99-1_42.so.1.42.0 -shared -Wl,--start-group "bin.v2/libs/math/build/gcc-mingw-4.3/gentoorelease/pch-off/acosh.o" "bin.v2/libs/math/build/gcc-mingw-4.3/gentoorelease/pch-off/asinh.o" "bin.v2/libs/math/build/gcc-mingw-4.3/gentoorelease/pch-off/atanh.o" "bin.v2/libs/math/build/gcc-mingw-4.3/gentoorelease/pch-off/cbrt.o" "bin.v2/libs/math/build/gcc-mingw-4.3/gentoorelease/pch-off/copysign.o" "bin.v2/libs/math/build/gcc-mingw-4.3/gentoorelease/pch-off/erfc.o" "bin.v2/libs/math/build/gcc-mingw-4.3/gentoorelease/pch-off/erf.o" "bin.v2/libs/math/build/gcc-mingw-4.3/gentoorelease/pch-off/expm1.o" "bin.v2/libs/math/build/gcc-mingw-4.3/gentoorelease/pch-off/fmax.o" "bin.v2/libs/math/build/gcc-mingw-4.3/gentoorelease/pch-off/fmin.o" "bin.v2/libs/math/build/gcc-mingw-4.3/gentoorelease/pch-off/fpclassify.o" "bin.v2/libs/math/build/gcc-mingw-4.3/gentoorelease/pch-off/hypot.o" "bin.v2/libs/math/build/gcc-mingw-4.3/gentoorelease/pch-off/lgamma.o" "bin.v2/libs/math/build/gcc-mingw-4.3/gentoorelease/pch-off/llround.o" "bin.v2/libs/math/build/gcc-mingw-4.3/gentoorelease/pch-off/log1p.o" "bin.v2/libs/math/build/gcc-mingw-4.3/gentoorelease/pch-off/lround.o" "bin.v2/libs/math/build/gcc-mingw-4.3/gentoorelease/pch-off/nextafter.o" "bin.v2/libs/math/build/gcc-mingw-4.3/gentoorelease/pch-off/nexttoward.o" "bin.v2/libs/math/build/gcc-mingw-4.3/gentoorelease/pch-off/round.o" "bin.v2/libs/math/build/gcc-mingw-4.3/gentoorelease/pch-off/tgamma.o" "bin.v2/libs/math/build/gcc-mingw-4.3/gentoorelease/pch-off/trunc.o" -Wl,-Bstatic -Wl,-Bdynamic -Wl,--end-group /usr/lib/gcc/i686-mingw32/4.3.5/libstdc++.a(stubs.o): In function `hypot': /var/tmp/cross/i686-mingw32/portage/cross-i686-mingw32/gcc-4.3.5/work/gcc-4.3.5/libstdc++-v3/libmath/stubs.c:275: multiple definition of `_hypot' bin.v2/libs/math/build/gcc-mingw-4.3/gentoorelease/pch-off/hypot.o:hypot.cpp:(.text+0x5f): first defined here collect2: ld returned 1 exit status ...failed updating 1 target... * ERROR: dev-libs/boost-1.42.0-r1 failed: * building boost failed * * Call stack: * ebuild.sh, line 54: Called src_compile * environment, line 5268: Called die * The specific snippet of code: * ${BJAM} ${NUMJOBS} -q -d+2 gentoorelease ${OPTIONS} threading=single,multi ${LINK_OPTS} runtime-link=shared || die "building boost failed"; * * If you need support, post the output of 'emerge --info =dev-libs/boost-1.42.0-r1', * the complete build log and the output of 'emerge -pqv =dev-libs/boost-1.42.0-r1'. * The complete build log is located at '/var/tmp/portage/dev-libs/boost-1.42.0-r1/temp/build.log'. * The ebuild environment file is located at '/var/tmp/portage/dev-libs/boost-1.42.0-r1/temp/environment'. * S: '/var/tmp/portage/dev-libs/boost-1.42.0-r1/work/boost_1_42_0' $ i686-mingw32-emerge --info =dev-libs/boost-1.42.0-r1 Portage 2.1.8.3 (prefix/windows/winnt/5.2/x86, gcc-4.3.5, glibc-2.11-r0, 2.6.33.1 x86_64) ================================================================= System Settings ================================================================= System uname: Linux-2.6.33.1-x86_64-Intel-R-_Core-TM-2_Quad_CPU_Q6600_@_2.40GHz-with-gentoo-2.0.1 Timestamp of tree: Wed, 28 Jul 2010 16:00:01 +0000 distcc 3.1 x86_64-pc-linux-gnu [disabled] app-shells/bash: 4.0_p35 dev-java/java-config: 1.3.7-r1, 2.1.10 dev-lang/python: 2.4.4-r6, 2.5.4-r3, 2.6.4, 3.1.1-r1 dev-util/cmake: 2.8.0 sys-apps/baselayout: 2.0.1 sys-apps/openrc: 0.5.2-r2 sys-apps/sandbox: 2.2 sys-devel/autoconf: 2.13, 2.64 sys-devel/automake: 1.5, 1.7.9-r1, 1.8.5-r3, 1.9.6-r3, 1.10.3, 1.11.1 sys-devel/binutils: 2.20 sys-devel/gcc: 3.4.6-r2, 4.1.2, 4.3.4, 4.4.2 sys-devel/gcc-config: 1.4.1 sys-devel/libtool: 2.2.6b virtual/os-headers: 2.6.30-r1 ACCEPT_KEYWORDS="~x86-winnt" ACCEPT_LICENSE="*" CBUILD="i686-mingw32" CFLAGS="" CHOST="i686-mingw32" CONFIG_PROTECT="/etc /usr/share/X11/xkb /usr/share/config /var/lib/hsqldb" CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /etc/env.d/java/ /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/php/apache2-php5/ext-active/ /etc/php/cgi-php5/ext-active/ /etc/php/cli-php5/ext-active/ /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo /etc/texmf/language.dat.d /etc/texmf/language.def.d /etc/texmf/updmap.d /etc/texmf/web2c /etc/udev/rules.d" CXXFLAGS="" DISTDIR="/usr/portage/distfiles" FEATURES="assume-digests collision-protect distlocks fixpackages news nostrip parallel-fetch protect-owned sfperms strict unmerge-logs unmerge-orphans userfetch" GENTOO_MIRRORS="http://distfiles.gentoo.org" LANG="en_AU.UTF-8" LC_ALL="en_AU.UTF-8" LDFLAGS="" PKGDIR="/usr/portage/packages" PORTAGE_CONFIGROOT="/usr/i686-mingw32/" PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --compress --force --whole-file --delete --stats --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" SYNC="rsync://rsync.gentoo.org/gentoo-portage" USE="cracklib cxx modules prefix ssl x86-winnt zlib" ALSA_PCM_PLUGINS="adpcm alaw asym copy dmix dshare dsnoop empty extplug file hooks iec958 ioplug ladspa lfloat linear meter mmap_emul mulaw multi null plug rate route share shm softvol" APACHE2_MODULES="actions alias auth_basic authn_alias authn_anon authn_dbm authn_default authn_file authz_dbm authz_default authz_groupfile authz_host authz_owner authz_user autoindex cache cgi cgid dav dav_fs dav_lock deflate dir disk_cache env expires ext_filter file_cache filter headers include info log_config logio mem_cache mime mime_magic negotiation rewrite setenvif speling status unique_id userdir usertrack vhost_alias" ELIBC="Winnt" INPUT_DEVICES="keyboard mouse" KERNEL="Winnt" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" RUBY_TARGETS="ruby18" USERLAND="GNU" XTABLES_ADDONS="quota2 psd pknock lscan length2 ipv4options ipset ipp2p iface geoip fuzzy condition tee tarpit sysrq steal rawnat logmark ipmark dhcpmac delude chaos account" Unset: CPPFLAGS, CTARGET, EMERGE_DEFAULT_OPTS, FFLAGS, INSTALL_MASK, LINGUAS, MAKEOPTS, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS, PORTDIR_OVERLAY $ i686-mingw32-emerge -pqv =dev-libs/boost-1.42.0-r1 [ebuild U ] dev-libs/boost-1.42.0-r1 [1.42.0] USE="eselect -debug -doc* -icu -mpi -python* -static-libs -test -tools*" I'm not sure why it's listed as an upgrade, the only versions already installed are the native ones, there are no cross-compiled ones installed yet.
Maybe you can work around this with LDFLAGS="-Wl,-z,muldefs" But this would of course not be a proper solution.
*** Bug 330691 has been marked as a duplicate of this bug. ***
I'm not sure what those options do, but unfortunately it just changes the error: $ LDFLAGS="-Wl,-z,muldefs" i686-mingw32-emerge -v boost /usr/libexec/gcc/i686-mingw32/ld: unrecognized option '-z' /usr/libexec/gcc/i686-mingw32/ld: use the --help option for usage information $ LDFLAGS="-Wl,muldefs" i686-mingw32-emerge -v boost /usr/libexec/gcc/i686-mingw32/ld: muldefs: No such file: No such file or directory
Just revisited this, after reinstalling/upgrading mingw32 and the entire cross-compiler environment, now it gets further and instead breaks here: "i686-mingw32-g++" -ftemplate-depth-128 -O2 -pipe -fno-strict-aliasing -finline-functions -Wno-inline -Wall -fPIC -DBOOST_ALL_NO_LIB=1 -DBOOST_PYTHON_SOURCE -DNDEBUG -I"." -I"/usr/include/python2.6" -c -o "bin.v2/libs/python/build/gcc-mingw-4.4/gentoorelease/pch-off/numeric.o" "libs/python/src/numeric.cpp" libs/python/src/numeric.cpp:1: warning: -fPIC ignored for target (all code is position independent) In file included from /usr/include/python2.6/Python.h:58, from ./boost/python/detail/wrap_python.hpp:142, from ./boost/python/detail/prefix.hpp:13, from ./boost/python/numeric.hpp:8, from libs/python/src/numeric.cpp:6: /usr/include/python2.6/pyport.h:261:24: error: sys/select.h: No such file or directory In file included from ./boost/python/object/make_instance.hpp:9, from ./boost/python/object/make_ptr_instance.hpp:8, from ./boost/python/to_python_indirect.hpp:11, from ./boost/python/converter/arg_to_python.hpp:10, from ./boost/python/call.hpp:15, from ./boost/python/object_core.hpp:12, from ./boost/python/object.hpp:9, from ./boost/python/tuple.hpp:10, from ./boost/python/numeric.hpp:10, from libs/python/src/numeric.cpp:6: ./boost/python/object/instance.hpp:14: warning: type attributes ignored after type is already defined ...failed updating 1 target... * ERROR: dev-libs/boost-1.42.0-r2 failed: * building boost failed * * Call stack: * ebuild.sh, line 56: Called src_compile * environment, line 5324: Called die * The specific snippet of code: * ${BJAM} ${NUMJOBS} -q -d+2 gentoorelease ${OPTIONS} threading=single,multi ${LINK_OPTS} runtime-link=shared || die "building boost failed"; Not sure whether it should be looking in /usr/include or /usr/i686-mingw32/include. Has anyone actually succeeded in cross-compiling Boost?
*** Bug 521942 has been marked as a duplicate of this bug. ***
The patch attached in bug #521942 adds support for MinGW toolchains to the boost ebuild. I tested it on a x86_64-w64-mingw32 toolchain, but it should work just as well on i686. No idea about Python support, though.
Created attachment 399800 [details, diff] boost-1.56.0-r1-mingw.patch The patch adds support for compilation on the x86_64-w64-mingw32 target to the dev-libs/boost-1.56.0-r1 ebuild.
Ancient bug, file a fresh one if this is still an issue.
