When emerging xorg-x11-6.8.1.902 I get an "gamma_state.c:1614: internal compiler error: Segmentation fault" error. Reproducible: Always Steps to Reproduce: 1. emerge -u xorg-x11 2. 3. Actual Results: i686-pc-linux-gnu-gcc -c -march=pentium3 -O3 -fomit-frame-pointer -fstack-protector -pipe -mno-sse2 -mno-sse3 -fno-strict-aliasing -ansi -pedantic -Wno-return-type -w -I../../../../../../exports/include/X11 -I../../../../../../include/extensions -I../../../../../../extras/Mesa/src/mesa -I../../../../../../extras/Mesa/src/mesa/main -I../../../../../../extras/Mesa/src/mesa/glapi -I../../../../../../extras/Mesa/src/mesa/shader -I../../../../../../extras/Mesa/include -I../../../../../../extras/Mesa/src/mesa/drivers/dri/common -I../../../../../../extras/Mesa/src/mesa/drivers/dri/gamma -I../../../../../../lib/GL/dri -I../../../../../../exports/include/X11 -I../../../../../../lib/GL/glx -I../../../../../../lib/GL/include -I../../../../../../programs/Xserver/GL/dri -I../../../../../../programs/Xserver/hw/xfree86/os-support -I../../../../../../extras/drm/shared -I../../../../../../programs/Xserver/hw/xfree86/drivers/glint -I../../../../../../lib/GL/dri/drm -I../../../../../.. -I../../../../../../exports/include -Dlinux -D__i386__ -D_POSIX_C_SOURCE=199309L -D_POSIX_SOURCE -D_XOPEN_SOURCE -D_BSD_SOURCE -D_SVID_SOURCE -D_GNU_SOURCE -DFUNCPROTO=15 -DNARROWPROTO -DXTHREADS -D_REENTRANT -DXUSE_MTSAFE_API -DMALLOC_0_RETURNS_NULL -DGLXEXT -DXF86DRI -DGLX_DIRECT_RENDERING -DGLX_USE_DLOPEN -DGLX_USE_MESA -DX_BYTE_ORDER=X_LITTLE_ENDIAN -DUSE_X86_ASM -DUSE_MMX_ASM -DUSE_SSE_ASM -fPIC gamma_state.c gamma_state.c: In function `gammaEmitHwState': gamma_state.c:1614: internal compiler error: Segmentation fault Please submit a full bug report, with preprocessed source if appropriate. See <URL:http://bugs.gentoo.org/> for instructions. The bug is not reproducible, so it is likely a hardware or OS problem. Expected Results: Correct emerge of xorg-x11. Portage 2.0.51-r13 (default-linux/x86/2004.3, gcc-3.4.3, glibc-2.3.4.20041102-r0, 2.6.10-hardened-r2 i686) ================================================================= System uname: 2.6.10-hardened-r2 i686 Pentium III (Katmai) Gentoo Base System version 1.6.8 Python: dev-lang/python-2.3.4 [2.3.4 (#1, Aug 8 2004, 23:07:16)] ccache version 2.3 [enabled] dev-lang/python: 2.3.4 sys-devel/autoconf: 2.59-r6, 2.13 sys-devel/automake: 1.8.5-r2, 1.5, 1.4_p6, 1.6.3, 1.7.9, 1.9.4 sys-devel/binutils: 2.15.92.0.2-r2 sys-devel/libtool: 1.5.10-r2 virtual/os-headers: 2.4.19, 2.4.22 ACCEPT_KEYWORDS="x86 ~x86" AUTOCLEAN="yes" CFLAGS="-march=pentium3 -O3 -fomit-frame-pointer -fstack-protector -funroll-loops -ffast-math -pipe" CHOST="i686-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/X11R6/lib/X11/xkb /usr/kde/2/share/config /usr/kde/3.3/env /usr/kde/3.3/share/config /usr/kde/3.3/shutdown /usr/kde/3/share/config /usr/lib/X11/xkb /usr/lib/mozilla/defaults/pref /usr/share/config /usr/share/texmf/dvipdfm/config/ /usr/share/texmf/dvips/config/ /usr/share/texmf/tex/generic/config/ /usr/share/texmf/tex/platex/config/ /usr/share/texmf/xdvi/ /var/qmail/control" CONFIG_PROTECT_MASK="/etc/gconf /etc/terminfo /etc/env.d" CXXFLAGS="-march=pentium3 -O3 -fomit-frame-pointer -fstack-protector -funroll-loops -ffast-math -pipe" DISTDIR="/usr/portage/distfiles" FEATURES="autoaddcvs autoconfig buildpkg ccache distlocks fixpackages sandbox sfperms" GENTOO_MIRRORS="http://gentoo.chem.wisc.edu/gentoo/ http://gentoo.oregonstate.edu http://distro.ibiblio.org/pub/Linux/distributions/gentoo" MAKEOPTS="-j2" PKGDIR="/usr/portage/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" PORTDIR_OVERLAY="/usr/local/portage" SYNC="rsync://rsync.namerica.gentoo.org/gentoo-portage" USE="X aalib alsa apm avi berkdb bitmap-fonts bonobo cdr crd crypt cups dga encode esd f77 fam flac font-server foomaticdb fortran gdbm gif gmail gnome gstreamer gtk gtk2 gtkhtml imagemagick imlib ipv6 java jpeg junit libg++ libwww mad maildir mikmod mmx motif mozilla mpeg mysql ncurses nls oggvorbis opengl oss pam pdflib perl png ppds python qt quicktime readline samba sdl slang spell sse ssl svga tcltk tcpd tetex tiff truetype truetype-fonts type1-fonts usb x86 xml xml2 xmms xv zlib" Unset: LDFLAGS
please reopen, if you can reproduce this without the -ffast-math flag
Created attachment 48843 [details] Update to the xorg-x11 ebuild that filters out -ffast-math. If we know that -ffast-math causes a problem prehaps we should filter it out. This ebuild fixes the problem without having to change the CFLAGS manually.
No, -ffast-math is not supported. You can read in the gcc manual why it is not sane to use this flag in general.
"This option should never be turned on by any -O option since it can result in incorrect output for programs which depend on an exact implementation of IEEE or ISO rules/specifications for math functions." I stand corrected...
