When updating chromium (stable) to version 31.0.1650.48 (from 30.0.1599.101) with gcc 4.5.4 in place (more precisely, set to x86_64-pc-linux-gnu-4.5.4 using gcc-config), compilation fails with various error messages regarding "#pragma GCC diagnostic" not being allowed within functions. With gcc 4.6.3 (changed using gcc-config to x86_64-pc-linux-gnu-4.6.3) update works fine, as did a reinstall of the old version with gcc 4.5.4. Chromium's newer ebuilds should be changed to make sure gcc 4.6.3 (or whatever least version appropriate) is used (like libreoffice's ebuild does). See bug #475494 for a similar problem. Reproducible: Always Output of emerge --info '=www-client/chromium-31.0.1650.48::gentoo': Portage 2.2.7 (default/linux/amd64/13.0/desktop/kde, gcc-4.5.4, glibc-2.15-r3, 3.8.13-gentoo x86_64) ================================================================= System Settings ================================================================= System uname: Linux-3.8.13-gentoo-x86_64-AMD_Phenom-tm-_II_X6_1100T_Processor-with-gentoo-2.2 KiB Mem: 16439068 total, 6107300 free KiB Swap: 25165820 total, 25165820 free Timestamp of tree: Fri, 15 Nov 2013 14:15:01 +0000 ld GNU ld (GNU Binutils) 2.23.1 app-shells/bash: 4.2_p45 dev-java/java-config: 2.1.12-r1 dev-lang/python: 2.7.5-r3, 3.2.5-r3 dev-util/cmake: 2.8.11.2 dev-util/pkgconfig: 0.28 sys-apps/baselayout: 2.2 sys-apps/openrc: 0.11.8 sys-apps/sandbox: 2.6-r1 sys-devel/autoconf: 2.13, 2.69 sys-devel/automake: 1.9.6-r3, 1.10.3, 1.11.6, 1.12.6, 1.13.4 sys-devel/binutils: 2.23.1 sys-devel/gcc: 4.3.6-r1, 4.4.7, 4.5.4, 4.6.3, 4.7.3-r1 sys-devel/gcc-config: 1.7.3 sys-devel/libtool: 2.4.2 sys-devel/make: 3.82-r4 sys-kernel/linux-headers: 3.9 (virtual/os-headers) sys-libs/glibc: 2.15-r3 Repositories: gentoo kde-sunset local_overlay ACCEPT_KEYWORDS="amd64" ACCEPT_LICENSE="* -@EULA" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-march=native -O2 -pipe" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/kde/3.5/env /usr/kde/3.5/share/config /usr/kde/3.5/shutdown /usr/share/config /usr/share/gnupg/qualified.txt /usr/share/themes/oxygen-gtk/gtk-2.0" CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo /etc/texmf/language.dat.d /etc/texmf/language.def.d /etc/texmf/updmap.d /etc/texmf/web2c" CXXFLAGS="-march=native -O2 -pipe" DISTDIR="/usr/portage/distfiles" FCFLAGS="-march=native -O2 -pipe" 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" FFLAGS="-march=native -O2 -pipe" GENTOO_MIRRORS="http://ftp.halifax.rwth-aachen.de/gentoo http://distfiles.gentoo.org" LANG="de_DE" LDFLAGS="-Wl,-O1 -Wl,--as-needed" MAKEOPTS="-j7" PKGDIR="/usr/portage/packages" PORTAGE_CONFIGROOT="/" 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="/dev/shm" PORTDIR="/usr/portage" PORTDIR_OVERLAY="/var/lib/layman/kde-sunset /usr/local/portage" SYNC="rsync://ftp.halifax.rwth-aachen.de/gentoo-portage" USE="3dnow 3dnowext X a52 aac aacplus aacs acl acpi alsa amd64 amr avahi berkdb bittorrent blas bluetooth bluray branding bzip2 cairo caps cblas-external cdda cddb cdparanoia cdr cg chm cli consolekit cracklib crypt cuda cups cxx dbus declarative dga djvu dri dts dv dvb dvd dvdr dvi ebook emboss encode exif fam ffmpeg fftw firefox flac fontconfig fortran g3dvl gdbm gif git glew glut gphoto2 gpm graphviz gsm gstreamer gtk http iconv id3tag idn ieee1394 imagemagick java jpeg kde kdeprefix kipi kpathsea ladspa lame lapack latex lcms ldap libnotify libvisual lzma mad mercurial mms mmx mmxext mng modules mozilla mp3 mp4 mpeg mplayer mudflap multilib musepack musicbrainz ncurses network nls nptl nsplugin nvidia ogg okular openal opencl opengl openmp openssl pam pango pcre pdf phonon plasma png policykit postproc postscript ppds pstricks qt3 qt3support qt4 qthelp quicktime readline rtmp samba scanner schroedinger sdl semantic-desktop session sndfile speex spell sse sse2 sse3 sse4a ssl startup-notification subversion svg t1lib tcpd theora threads thumbnail tiff truetype udev udisks upower usb v4l v4l2 vcd vdpau vorbis vpx wavpack windeco wmf wxwidgets x264 xcb xcomposite xine xml xscreensaver xv xvid xvmc zlib" ABI_X86="64" ALSA_CARDS="ali5451 als4000 atiixp atiixp-modem bt87x ca0106 cmipci emu10k1x ens1370 ens1371 es1938 es1968 fm801 hda-intel intel8x0 intel8x0m maestro3 trident usb-audio via82xx via82xx-modem ymfpci" APACHE2_MODULES="authn_core authz_core socache_shmcb unixd 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 cgi cgid 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" CALLIGRA_FEATURES="kexi words flow plan sheets stage tables krita karbon braindump author" CAMERAS="ptp2 agfa_cl20" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" ELIBC="glibc" GPSD_PROTOCOLS="ashtech aivdm earthmate evermore fv18 garmin garmintxt gpsclock itrax mtk3301 nmea ntrip navcom oceanserver oldstyle oncore rtcm104v2 rtcm104v3 sirf superstar2 timing tsip tripmate tnt ubx" INPUT_DEVICES="evdev" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LIBREOFFICE_EXTENSIONS="presenter-console presenter-minimizer" LINGUAS="de en ru" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php5-5" PYTHON_SINGLE_TARGET="python2_7" PYTHON_TARGETS="python2_7 python3_2" RUBY_TARGETS="ruby19 ruby18" SANE_BACKENDS="snapscan hp" USERLAND="GNU" VIDEO_CARDS="nvidia fbdev" XTABLES_ADDONS="quota2 psd pknock lscan length2 ipv4options ipset ipp2p iface geoip fuzzy condition tee tarpit sysrq steal rawnat logmark ipmark dhcpmac delude chaos account" Unset: CPPFLAGS, CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LC_ALL, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS, USE_PYTHON ================================================================= Package Settings ================================================================= www-client/chromium-31.0.1650.48 was built with the following: USE="cups -bindist -custom-cflags -gnome -gnome-keyring -gps -kerberos (-neon) -pulseaudio (-selinux) (-system-sqlite) (-tcmalloc) -test" LINGUAS="de ru -am -ar -bg -bn -ca -cs -da -el -en_GB -es -es_LA -et -fa -fi -fil -fr -gu -he -hi -hr -hu -id -it -ja -kn -ko -lt -lv -ml -mr -ms -nb -nl -pl -pt_BR -pt_PT -ro -sk -sl -sr -sv -sw -ta -te -th -tr -uk -vi -zh_CN -zh_TW"
Created attachment 363350 [details] build.log from emerge -B chromium with gcc 4.5.4
I am hesitant to add a dependency on gcc; in theory you could build chromium with another compiler (like clang). Maybe a pkg_pretend check on CXX?
(In reply to Mike Gilbert from comment #2) > I am hesitant to add a dependency on gcc; in theory you could build chromium > with another compiler (like clang). Totally agreed. :) Dependency is out of question, and I'd be fine with a pkg_pretend check similar to one in libreoffice, but I'd still prefer to avoid it - for multiple reasons, clang being one of them. Actually please test this and report if it works (it does for me): 16 Nov 2013; Pawel Hajdan jr chromium-32.0.1700.14.ebuild, chromium-33.0.1707.0.ebuild: Reconfigure bundled ffmpeg to enable build with gcc-4.5, bug #491378 by Ulrich Fieseler. I wonder what happens with gcc-4.4 and older... obviously we can't support all versions of gcc, and if chromium compiles with an old enough version it'd be a further argument against any pkg_pretend check.
Currently chromium doesn't compile with gcc-4.4 even with above changes, but it does with some small patches. I plan to take that upstream. By the way, I hit bug #357287 while trying to emerge gcc-4.4 on my system. Adding -mno-avx to CFLAGS in make.conf worked for me as a workaround.
Building 32.0.1700.14 with gcc 4.5.4 works (after adding it as well as =dev-libs/protobuf-2.5.0 to package.accept_keywords) and can be run (simple go/no-go check). Building 33.0.1707.0 fails (having added it to package.unmask first, of course) after quite a while of compiling with error message '../../chrome/browser/ui/libgtk2ui/gconf_titlebar_listener.h:8:32: fatal error: gconf/gconf-client.h: No such file or directory', so that's probably a different problem (and it occurs with gcc 4.6.3 as well!). See attachment for log with gcc 4.5.4 (compressed because of its length).
Created attachment 363546 [details] gzipped build.log for 33.0.1707.0 with gcc 4.5.4
I think this is fixed now with chromium-32.x stable.
