Today I tried to install mesa-progs-9999 from the x11 overlay with egl, gles1 and gles2 USE flags set and it bombed out with the following error during configure phase: checking for GLEW... no checking GL/glew.h usability... no checking GL/glew.h presence... no checking for GL/glew.h... no configure: error: GLEW required Accordingly, if I emerge media-libs/glew (either stable or latest ~amd64 version) it works. With USE="-egl -gles1 -gles2" no glew is necessary. Reproducible: Always Steps to Reproduce: 1. USE="egl gles1 gles2" emerge -1v =mesa-progs-9999 Actual Results: configure: error: GLEW required Expected Results: It should depend on media-libs/glew if any USE flag is set. # emerge --info Portage 2.1.11.9 (default/linux/amd64/10.0/desktop/kde, gcc-4.6.3, glibc-2.15-r2, 3.6.0-rc5 x86_64) ================================================================= System uname: Linux-3.6.0-rc5-x86_64-Intel-R-_Core-TM-_i7-2600_CPU_@_3.40GHz-with-gentoo-2.1 Timestamp of tree: Mon, 17 Sep 2012 07:15:01 +0000 distcc 3.1 x86_64-pc-linux-gnu [enabled] ccache version 3.1.7 [enabled] app-shells/bash: 4.2_p37 dev-java/java-config: 2.1.11-r3 dev-lang/python: 2.7.3-r2, 3.2.3 dev-util/ccache: 3.1.7 dev-util/cmake: 2.8.8-r3 dev-util/pkgconfig: 0.27.1 sys-apps/baselayout: 2.1-r1 sys-apps/openrc: 0.10.5 sys-apps/sandbox: 2.5 sys-devel/autoconf: 2.13, 2.68 sys-devel/automake: 1.9.6-r3, 1.11.6 sys-devel/binutils: 2.22-r1 sys-devel/gcc: 4.6.3 sys-devel/gcc-config: 1.7.3 sys-devel/libtool: 2.4-r1 sys-devel/make: 3.82-r3 sys-kernel/linux-headers: 3.4-r2 (virtual/os-headers) sys-libs/glibc: 2.15-r2 Repositories: gentoo x11 x-portage ACCEPT_KEYWORDS="amd64" ACCEPT_LICENSE="* -@EULA" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-march=corei7-avx -O2 -pipe -fomit-frame-pointer" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/share/config /usr/share/gnupg/qualified.txt /usr/share/openvpn/easy-rsa /var/lib/hsqldb" CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /etc/env.d/java/ /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/php/apache2-php5.4/ext-active/ /etc/php/cgi-php5.4/ext-active/ /etc/php/cli-php5.4/ext-active/ /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo" CXXFLAGS="-march=corei7-avx -O2 -pipe -fomit-frame-pointer" DISTDIR="/usr/portage/distfiles" EMERGE_DEFAULT_OPTS="--keep-going y --with-bdeps y" FCFLAGS="-O2 -pipe" FEATURES="assume-digests binpkg-logs ccache compress-build-logs config-protect-if-modified distcc distlocks ebuild-locks news parallel-fetch parse-eapi-ebuild-head protect-owned sandbox sfperms split-elog split-log strict test unknown-features-warn unmerge-logs unmerge-orphans userfetch userpriv usersandbox usersync xattr" FFLAGS="-O2 -pipe" GENTOO_MIRRORS="http://gentoo.wheel.sk/ http://gentoo.mneisen.org/ http://mirrors.linuxant.fr/distfiles.gentoo.org/ http://mirror.switch.ch/ftp/mirror/gentoo/ ftp://gentoo.wheel.sk/pub/linux/gentoo/" LANG="it_IT.UTF-8" LDFLAGS="-Wl,-O1 -Wl,--as-needed" LINGUAS="it" MAKEOPTS="-j11" PKGDIR="/usr/portage/packages" PORTAGE_CONFIGROOT="/" PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --compress --force --whole-file --delete --stats --human-readable --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" PORTDIR_OVERLAY="/var/lib/layman/x11 /usr/local/portage" SYNC="rsync://rsync.europe.gentoo.org/gentoo-portage" USE="X a52 aac aalib acl acpi alsa amd64 ao audiofile bash-completion bluetooth branding bzip2 cairo caps cdda cddb cdparanoia cdr cli consolekit cracklib crypt css cups curl cxx dbus declarative dga djvu dri dts dvd dvdr emboss encode exif expat fam fbcon ffmpeg fftw firefox flac fontconfig foomaticdb fortran ftp gd gdbm geoip ggi gif gimp gmp gnutls gphoto2 gpm graphviz gstreamer gtk handbook iconv icu idn ieee1394 imagemagick imlib ipv6 java javascript jbig jpeg jpeg2k kde kipi lame lcms libcaca libnotify libsamplerate lm_sensors lua lzma lzo mad mmap mmx mng modules mp3 mp4 mpeg mplayer mudflap multilib musicbrainz ncurses nls nptl nsplugin offensive ogg openal openexr opengl openmp pam pango pcre pdf phonon plasma png policykit postscript ppds pppd qt3support qt4 rdesktop readline recode sdl semantic-desktop session smartcard sndfile sockets speex spell sqlite sqlite3 sse sse2 ssl startup-notification subversion svg symlink syslog sysvipc taglib tcpd theora threads tidy tiff truetype udev udisks unicode upower usb vcd vim-syntax vnc vorbis wmf wxwidgets x264 xattr xcb xcomposite xinerama xml xpm xscreensaver xv xvid yahoo zlib" ALSA_CARDS="hda-intel virmidi" 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 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" CAMERAS="kodak ptp2" 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="it" PHP_TARGETS="php5-3" PYTHON_TARGETS="python3_2 python2_7" RUBY_TARGETS="ruby18 ruby19" USERLAND="GNU" VIDEO_CARDS="radeon r600" 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, INSTALL_MASK, LC_ALL, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS, USE_PYTHON
Confirmed. I see that I missed a few other dependencies as well. Thanks for the bug report, I'll fix this today.
Ugh, so nothing /actually/ needs libGLEW or libGLU. The build system is stupid and links in -lGLEW -lGLU. If no USE flag it set, we just compile glxgears/glxinfo manually, which doesn't use the build system, so no -lGLEW -lGLU.
Okay, fixed. Nothing installed uses GLEW or GLU, but if we're building EGL (or GLESv1 or v2) programs then we have to use the autotools build system which checks for GLEW and GLU. As a result, I've put them in DEPEND only. Maybe I can fix this upsteam sometime. Again, thanks for the report!
