Bug 234841 – USE="-openmp" sys-devel/gcc-4.3.1-r1 install openmp support

• Status: RESOLVED FIXED
• Product: Gentoo Linux

[Description Petteri Räty (RETIRED) 2008-08-15 17:15:55 UTC]

betelgeuse@pena ~/pokerit $ make omp
cc -march=native -O3 -pipe -Wl,-O1 -fopenmp omp.c -o omp
betelgeuse@pena ~/pokerit $ ./omp
Hello World from thread 1
Hello World from thread 0
There are 2 threads

betelgeuse@pena ~ $ qlist gcc | grep omp
/etc/eselect/compiler/i686-pc-linux-gnu-4.3.1.conf
/usr/lib/gcc/i686-pc-linux-gnu/4.3.1/libgomp.a
/usr/lib/gcc/i686-pc-linux-gnu/4.3.1/libgomp.la
/usr/lib/gcc/i686-pc-linux-gnu/4.3.1/libgomp.so
/usr/lib/gcc/i686-pc-linux-gnu/4.3.1/libgomp.so.1.0.0
/usr/lib/gcc/i686-pc-linux-gnu/4.3.1/libgomp.so.1
/usr/lib/gcc/i686-pc-linux-gnu/4.3.1/libgomp.spec
/usr/lib/gcc/i686-pc-linux-gnu/4.3.1/include/omp.h
/usr/lib/gcc/i686-pc-linux-gnu/4.3.1/include/g++-v4/tr1/complex
/usr/lib/gcc/i686-pc-linux-gnu/4.3.1/include/g++-v4/tr1/complex.h
/usr/lib/gcc/i686-pc-linux-gnu/4.3.1/include/g++-v4/tr1/ccomplex
/usr/lib/gcc/i686-pc-linux-gnu/4.3.1/include/g++-v4/complex
/usr/lib/gcc/i686-pc-linux-gnu/4.3.1/include/g++-v4/complex.h
/usr/lib/gcc/i686-pc-linux-gnu/4.3.1/include/g++-v4/parallel/compatibility.h
/usr/lib/gcc/i686-pc-linux-gnu/4.3.1/include/g++-v4/parallel/omp_loop_static.h
/usr/lib/gcc/i686-pc-linux-gnu/4.3.1/include/g++-v4/parallel/compiletime_settings.h
/usr/lib/gcc/i686-pc-linux-gnu/4.3.1/include/g++-v4/parallel/omp_loop.h
/usr/lib/gcc/i686-pc-linux-gnu/4.3.1/include/g++-v4/tr1_impl/complex
/usr/lib/gcc/i686-pc-linux-gnu/4.3.1/include/g++-v4/ccomplex
/usr/share/gcc-data/i686-pc-linux-gnu/4.3.1/info/libgomp.info.bz2
epena betelgeuse # emerge -pv gcc

These are the packages that would be merged, in order:

Calculating dependencies... done!
[ebuild   R   ] sys-devel/gcc-4.3.1-r1  USE="libffi (-altivec) -bootstrap -build -doc -fortran -gcj -gtk (-hardened) -ip28 -ip32r10k -mudflap (-multilib) -multislot (-n32) (-n64) -nls -nocxx -objc -objc++ -objc-gc -openmp -test -vanilla" 0 kB

pena betelgeuse # emerge --info
Portage 2.2_rc8 (default/linux/x86/2008.0/desktop, gcc-4.3.1, glibc-2.8_p20080602-r0, 2.6.26-gentoo i686)
=================================================================
System uname: Linux-2.6.26-gentoo-i686-Intel-R-_Core-TM-2_CPU_6600_@_2.40GHz-with-glibc2.0
Timestamp of tree: Unknown
distcc 2.18.3 i686-pc-linux-gnu (protocols 1 and 2) (default port 3632) [disabled]
ccache version 2.4 [enabled]
app-shells/bash:     3.2_p39
dev-java/java-config: 1.3.7, 2.1.6-r2
dev-lang/python:     2.5.2-r7
dev-util/ccache:     2.4-r7
sys-apps/baselayout: 2.0.0
sys-apps/openrc:     0.2.5
sys-apps/sandbox:    1.2.18.1-r3
sys-devel/autoconf:  2.13, 2.62-r1
sys-devel/automake:  1.5, 1.7.9-r1, 1.9.6-r2, 1.10.1-r1
sys-devel/binutils:  2.18-r3
sys-devel/gcc-config: 1.4.0-r4
sys-devel/libtool:   2.2.4
virtual/os-headers:  2.6.25-r4
ACCEPT_KEYWORDS="x86 ~x86"
CBUILD="i686-pc-linux-gnu"
CFLAGS="-O2 -march=native -pipe -fomit-frame-pointer"
CHOST="i686-pc-linux-gnu"
CONFIG_PROTECT="/etc /usr/kde/3.5/env /usr/kde/3.5/share/config /usr/kde/3.5/shutdown /usr/kde/4.0/env /usr/kde/4.0/share/config /usr/kde/4.0/shutdown /usr/share/config"
CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /etc/env.d/java/ /etc/eselect/postgresql /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/revdep-rebuild /etc/splash /etc/terminfo /etc/texmf/web2c /etc/udev/rules.d"
CXXFLAGS="-O2 -march=native -pipe -fomit-frame-pointer"
DISTDIR="/var/distfiles"
FEATURES="ccache collision-protect distlocks fixpackages parallel-fetch preserve-libs sandbox sfperms sign strict unmerge-orphans userfetch userpriv usersandbox verify-rdepend"
GENTOO_MIRRORS=" http://trumpetti.atm.tut.fi/gentoo"
LANG="en_US.utf8"
LC_ALL="en_US.utf8"
LDFLAGS="-Wl,--as-needed -Wl,-O1"
LINGUAS="fi"
PKGDIR="/home/pkg/"
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"
PORTDIR_OVERLAY="/mnt/checkouts/overlays/flameeyes-overlay /mnt/checkouts/overlays/openrc /mnt/checkouts/overlays/jokey /mnt/checkouts/overlays/postgresql-testing /mnt/checkouts/overlays/sunrise /mnt/checkouts/overlays/betelgeuse"
SYNC="rsync://192.168.150.1/portage"
USE="a52 aac acl acpi alsa audiofile bash-completion berkdb bluetooth branding bzip2 cairo caps cdb cddb cdparanoia cdr cli cracklib crypt cups dbus dri dts dvd dvdr dvdread emboss evo fam ffmpeg firefox gif gstreamer hal iconv ipv6 isdnlog java jpeg kde kdeenablefinal kdehiddenvisibility libnotify logitech-mouse mad mikmod mjpeg mmx mp3 mpeg mudflap ncurses network nptl nptlonly nsplugin nvidia offensive ogg opengl openmp pam pcre pdf png ppds pppd pulseaudio qt3 qt3support quicktime readline real reflection rtc samba session spell spl sse sse2 ssl startup-notification subversion svg symlink sysfs theora threads tiff truetype udev unicode usb userlocales vim-syntax vorbis win32codecs x86 xcb xcomposite xinerama xml xorg xv xvid xvmc zlib" ALSA_CARDS="hda-intel" 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 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="glibc" INPUT_DEVICES="evdev" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LINGUAS="fi" USERLAND="GNU" VIDEO_CARDS="none nvidia"
Unset:  CPPFLAGS, CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, MAKEOPTS, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS

[Comment 1 Ryan Hill (RETIRED) 2008-08-25 00:13:21 UTC]

Created attachment 163733 [details, diff]
toolchain.eclass.diff

pass --disable-libgomp to configure.

[Comment 2 Ryan Hill (RETIRED) 2008-10-18 19:15:33 UTC]

Any objections to me applying this?

[Comment 3 Petteri Räty (RETIRED) 2008-10-18 20:47:29 UTC]

(In reply to comment #2)
> Any objections to me applying this?
> 

No timely response --> just do it yourself IMHO.

[Comment 4 Ryan Hill (RETIRED) 2008-10-18 22:36:06 UTC]

i'd rather not touch toolchain stuff w/o permission

[Comment 5 Mark Loeser (RETIRED) 2008-10-19 16:30:22 UTC]

(In reply to comment #2)
> Any objections to me applying this?
> 

Go for it.