The compile fails if -msse2 is in CFLAGS. The emerge is successful if the -msse2 flag is removed. I noticed the problem with -r3 and -r4 but I haven't tried other ebuilds with the problematic flag. BTW in the forums I noticed a discussion that might be related even if speaking about Mozilla: http://forums.gentoo.org/viewtopic.php?t=15193 I attach the output of the failed emerge. Reproducible: Always Steps to Reproduce: 1. emerge mozilla-firebird with -msse2 in the CFLAGS Actual Results: {standard input}: Assembler messages: {standard input}:181: Error: suffix or operands invalid for `movd' Expected Results: Successful emerge. Portage 2.0.48-r1 (default-x86-1.4, gcc-3.2.3, glibc-2.3.2-r1) ================================================================= System uname: 2.4.20 i686 Intel(R) Pentium(R) 4 CPU 2.40GHz GENTOO_MIRRORS="ftp://sunsite.cnlab-switch.ch/mirror/gentoo http://gentoo.oregonstate.edu http://www.ibiblio.org/pub/Linux/distributions/gentoo" CONFIG_PROTECT="/etc /var/qmail/control /usr/kde/2/share/config /usr/kde/3/share/config /usr/X11R6/lib/X11/xkb /usr/kde/3.1/share/config /usr/share/config" CONFIG_PROTECT_MASK="/etc/gconf /etc/env.d" PORTDIR="/usr/portage" DISTDIR="/usr/portage/distfiles" PKGDIR="/usr/portage/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR_OVERLAY="/usr/local/portage" USE="oss libg++ libwww mikmod ncurses nls spell zlib gdbm berkdb slang guile gpm perl python imlib motif -3dfx -3dnow aalib -acpi alsa apache2 -apm -arts avi cdr crypt cups dga dvd encode -esd gif gnome gpgme gtk gtk2 java jpeg -kde -matrox mmx -mozilla mpeg oggvorbis opengl pam pdflib png -qt qtmt quicktime readline samba sasl sdl snmp sse ssl -svga tcpd tiff truetype usb -voodoo3 wmf X xml2 xmms xv x86" COMPILER="gcc3" CHOST="i686-pc-linux-gnu" CFLAGS="-march=pentium4 -mfpmath=sse -mmmx -msse2 -Os -pipe" CXXFLAGS="-march=pentium4 -mfpmath=sse -mmmx -msse2 -Os -pipe" ACCEPT_KEYWORDS="x86 ~x86" MAKEOPTS="-j2" AUTOCLEAN="yes" SYNC="rsync://rsync.gentoo.org/gentoo-portage" FEATURES="sandbox ccache"
Created attachment 12939 [details] Output of the failed emerge
Seems that filter-flags -msse2 should be added in the case where it ratchets Pentium4 down to Pentium3, otherwise evil things will happen.
This bug seems to affect the Mozilla ebuild as well
Fixed in -r5