Bug 100094 – sys-libs/glibc-2.3.5-r1 filters -march=pentium-m

• Status: RESOLVED FIXED
• Product: Gentoo Linux

[Description Sebastian Bergmann (RETIRED) 2005-07-23 22:47:29 UTC]

While emerging sys-libs/glibc-2.3.5-r1 I noticed that GLIBC was being built with
-mtune=pentium3 instead of -march=pentium-m. I looked at the ebuild and found

  if [ "`gcc-major-version`" -ge "3" -a "`gcc-minor-version`" -ge "4" ] ; then
      # broken in 3.4.x
      replace-flags -march=pentium-m -mtune=pentium3
  fi

I am wondering whether this is still true with GCC 3.4.4 as I remember a similar
problem with xorg-x11 and GCC 3.4 that was solved by GCC 3.4.4 and the xorg-x11
ebuild has been changed since.

Reproducible: Always
Steps to Reproduce:
1.
2.
3.




Portage 2.0.51.22-r2 (default-linux/x86/2005.0, gcc-3.4.4, glibc-2.3.5-r0,
2.6.12-gentoo-r6 i686)
=================================================================
System uname: 2.6.12-gentoo-r6 i686 Intel(R) Pentium(R) M processor 1500MHz
Gentoo Base System version 1.6.13
dev-lang/python:     2.4.1-r1
sys-apps/sandbox:    1.2.11
sys-devel/autoconf:  2.13, 2.59-r7
sys-devel/automake:  1.4_p6, 1.5, 1.6.3, 1.7.9-r1, 1.8.5-r3, 1.9.6
sys-devel/binutils:  2.16.1
sys-devel/libtool:   1.5.18-r1
virtual/os-headers:  2.6.11-r2
ACCEPT_KEYWORDS="x86 ~x86"
AUTOCLEAN="yes"
CBUILD="i686-pc-linux-gnu"
CFLAGS="-march=pentium-m -O2 -pipe"
CHOST="i686-pc-linux-gnu"
CONFIG_PROTECT="/etc /usr/kde/2/share/config /usr/kde/3/share/config
/usr/lib/X11/xkb /usr/share/config /var/qmail/control"
CONFIG_PROTECT_MASK="/etc/gconf /etc/terminfo /etc/env.d"
CXXFLAGS="-march=pentium-m -O2 -pipe"
DISTDIR="/usr/portage/distfiles"
FEATURES="autoaddcvs autoconfig cvs digest distlocks fixpackages sandbox sfperms
sign strict"
GENTOO_MIRRORS="ftp://sunsite.informatik.rwth-aachen.de/pub/Linux/gentoo
ftp://trumpetti.atm.tut.fi/gentoo http://gentoo.oregonstate.edu
http://www.ibiblio.org/pub/Linux/distributions/gentoo"
LINGUAS="de"
PKGDIR="/usr/portage/packages"
PORTAGE_TMPDIR="/var/tmp"
PORTDIR="/usr/portage"
PORTDIR_OVERLAY="/usr/local/portage"
SYNC="rsync://rsync.gentoo.org/gentoo-portage"
USE="x86 X a52 acpi alsa avi berkdb bitmap-fonts cdr crypt cups curl divx4linux
dvd dvdr dvdread emboss encode esd fame firefox font-server foomaticdb fortran
gdbm gif gnome gpm gstreamer gtk gtk2 hal imagemagick imlib ipv6 java jpeg
libg++ libwww lzo mad mikmod mjpeg mmx mono moznocompose moznoirc moznomail mp3
mpeg ncurses nls nomotif nptl nvidia ogg oggvorbis opengl oss pam pdflib perl
png ppds python quicktime readline samba slang spell sse ssl svg tcpd theora
tiff truetype truetype-fonts type1-fonts unicode userlocales vorbis win32codecs
xml2 xv xvid zlib linguas_de userland_GNU kernel_linux elibc_glibc"
Unset:  ASFLAGS, CTARGET, LANG, LC_ALL, LDFLAGS, MAKEOPTS

[Comment 1 SpanKY 2005-07-24 02:14:06 UTC]

why not test it and report back

[Comment 2 Sebastian Bergmann (RETIRED) 2005-07-24 07:10:02 UTC]

I built sys-libs/glibc-2.3.5-r1 with -march=pentium-m by removing the lines (see
above) from the ebuild. My system works as stable as before.

[Comment 3 SpanKY 2005-10-04 20:18:23 UTC]

done, thanks