>>> Source prepared. >>> Configuring source in /var/tmp/portage/cross-x86_64-pc-linux-gnu/glibc-2.20/work/glibc-2.20 ... * strip-flags: CFLAGS: changed '-O2 -march=core2 -msse2 -msse -fforce-addr -fomit-frame-pointer -pipe' to '-O2 -march=core2 -pipe' * strip-flags: CXXFLAGS: changed '-O2 -march=core2 -msse2 -msse -fforce-addr -fomit-frame-pointer -pipe' to '-O2 -march=core2 -pipe' <builtin>: recipe for target 'glibc-test' failed * Auto adding -march=x86_64 to CFLAGS_x86 #185404 * strip-flags: CFLAGS: changed '-O2 -march=core2 -msse2 -msse -fforce-addr -fomit-frame-pointer -pipe' to '-O2 -march=core2 -pipe' * strip-flags: CXXFLAGS: changed '-O2 -march=core2 -msse2 -msse -fforce-addr -fomit-frame-pointer -pipe' to '-O2 -march=core2 -pipe' <builtin>: recipe for target 'glibc-test' failed * Auto adding -march=x86_64 to CFLAGS_x86 #185404 * Running toolchain-glibc_src_configure for ABI x86 Reproducible: Always Steps to Reproduce: 1. emerge cross-x86_64-pc-linux-gnu/glibc 2. 3. Expected Results: Should compile. The config.log says: configure:2740: checking for suffix of object files configure:2762: x86_64-pc-linux-gnu-gcc -m32 -march=x86_64 -c -pipe -O2 -fno-strict-aliasing conftest.c >&5 conftest.c:1:0: error: bad value (x86_64) for -march= switch Basically, * Auto adding -march=x86_64 to CFLAGS_x86 #185404 is conflicting with the new 4.9.2 gcc which does not recognise the x86_64 as a valid -march value.
1) Please post your `cross-emerge --info' output in a comment. 2) Please attach the entire build log to this bug report.
# x86_64-pc-linux-gnu-emerge --info Portage 2.2.14 (python 2.7.8-final-0, unavailable, gcc-4.9.2, glibc-2.20, 3.16.4 x86_64) ================================================================= System uname: Linux-3.16.4-x86_64-Intel-R-_Core-TM-_i7_CPU_920_@_2.67GHz-with-gentoo-2.2 KiB Mem: 12297380 total, 826376 free KiB Swap: 12582892 total, 11656260 free Timestamp of tree: Mon, 10 Nov 2014 00:15:01 +0000 ld GNU ld (Gentoo 2.24 p1.4) 2.24 distcc 3.2rc1 i686-pc-linux-gnu [disabled] ccache version 3.1.10 [disabled] app-shells/bash: 4.3_p30-r1 dev-java/java-config: 2.2.0 dev-lang/perl: 5.20.1-r2 dev-lang/python: 2.7.8, 3.3.5-r1 dev-util/ccache: 3.1.10-r1 dev-util/cmake: 3.0.2 dev-util/pkgconfig: 0.28-r2 sys-apps/baselayout: 2.2 sys-apps/openrc: 0.13.3 sys-apps/sandbox: 2.6-r1 sys-devel/autoconf: 2.13, 2.69 sys-devel/automake: 1.11.6, 1.14.1 sys-devel/binutils: 2.24-r3 sys-devel/gcc: 4.7.2-r1, 4.8.2-r1, 4.9.2 sys-devel/gcc-config: 1.8 sys-devel/libtool: 2.4.3-r2 sys-devel/make: 4.1-r1 sys-kernel/linux-headers: 3.17-r1 (virtual/os-headers) sys-libs/glibc: 2.20 Repositories: gentoo ACCEPT_LICENSE="* -@EULA" CBUILD="i686-pc-linux-gnu" CFLAGS="" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/share/config /usr/share/gnupg/qualified.txt /usr/share/themes/oxygen-gtk/gtk-2.0 /usr/share/themes/oxygen-gtk/gtk-3.0 /var/bind" CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/dconf /etc/env.d /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/revdep-rebuild /etc/sandbox.d /etc/splash /etc/terminfo" CXXFLAGS="" DISTDIR="/usr/portage/distfiles" FCFLAGS="" FEATURES="assume-digests binpkg-logs config-protect-if-modified distlocks ebuild-locks fixlafiles merge-sync news parallel-fetch preserve-libs protect-owned sandbox sfperms strict unknown-features-warn unmerge-logs unmerge-orphans userfetch userpriv usersandbox usersync xattr" FFLAGS="" GENTOO_MIRRORS="http://distfiles.gentoo.org" LDFLAGS="" PKGDIR="/usr/portage/packages" PORTAGE_CONFIGROOT="/usr/x86_64-pc-linux-gnu/" PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --omit-dir-times --compress --force --whole-file --delete --stats --human-readable --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" PORTDIR_OVERLAY="" USE="" Unset: ACCEPT_KEYWORDS, CPPFLAGS, CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LANG, LC_ALL, MAKEOPTS, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS, SYNC, USE_PYTHON
Created attachment 388982 [details] build.log
configure: error: in `/var/tmp/portage/cross-x86_64-pc-linux-gnu/glibc-2.20/work/build-x86-x86_64-pc-linux-gnu-nptl': configure: error: cannot compute suffix of object files: cannot compile See `config.log' for more details Please attach that too.
Created attachment 389062 [details] config.log I had added the snippet of the config.log in the bug originally. And I think that snippet alone really points to the issue. The -march=x86_64 is no longer valid with 4.9.2 (this started happening after upgrade to gcc 4.9.2).
Looks like the damage was done by fixes for #185404 #199334 Any plans of fixing this? Why is common.eblit auto-adding a flag which is removed in gcc-4.9.2 and compiler barfs on it?
the multilib code path isn't often tested which is why no one noticed
should be all set now in the tree; thanks for the report! Commit message: Fix -march setting when building x86 multilib on x86_64 http://sources.gentoo.org/sys-libs/glibc/files/eblits/common.eblit?r1=1.45&r2=1.46
