Bug 577706 – www-servers/apache-2.4.18 cannot emerge with proxy_balancer USE flag

• Product: Gentoo Linux
• Status: RESOLVED INVALID

[Description Yarda 2016-03-18 12:54:40 UTC]

It seems that the slotmem_shm USE flag/module was removed from apache-2.4.18 and it seems it is no longer possible to USE the flag/module "proxy_balancer". I think the ebuild should be fixed to allow emerge with "proxy_balancer" USE flag or the "proxy_balancer" USE flag should be removed.

>>> Emerging (1 of 1) www-servers/apache-2.4.18::gentoo
 * httpd-2.4.18.tar.bz2 SHA256 SHA512 WHIRLPOOL size ;-) ...                                                                                                   [ ok ]
 * gentoo-apache-2.4.10-r1-20140731.tar.bz2 SHA256 SHA512 WHIRLPOOL size ;-) ...                                                                               [ ok ]
 * 
 * Selected default threaded MPM: event
 * 
 * Module 'proxy_balancer' depends on 'slotmem_shm'
 * ERROR: www-servers/apache-2.4.18::gentoo failed (setup phase):
 *   invalid use flag combination
 * 
 * Call stack:
 *              ebuild.sh, line 133:  Called pkg_setup
 *   apache-2.4.18.ebuild, line 137:  Called apache-2_pkg_setup
 *        apache-2.eclass, line 402:  Called setup_modules
 *        apache-2.eclass, line 319:  Called check_module_depends
 *        apache-2.eclass, line 235:  Called die
 * The specific snippet of code:
 *              die "invalid use flag combination"
 * 
 * If you need support, post the output of `emerge --info '=www-servers/apache-2.4.18::gentoo'`,
 * the complete build log and the output of `emerge -pqv '=www-servers/apache-2.4.18::gentoo'`.
 * The complete build log is located at '/var/tmp/portage/www-servers/apache-2.4.18/temp/build.log'.
 * The ebuild environment file is located at '/var/tmp/portage/www-servers/apache-2.4.18/temp/die.env'.
 * Working directory: '/usr/lib64/python2.7/site-packages'
 * S: '/var/tmp/portage/www-servers/apache-2.4.18/work/httpd-2.4.18'

# emerge --info
Portage 2.2.26 (python 2.7.10-final-0, default/linux/amd64/13.0/desktop, gcc-4.8.5, glibc-2.21-r2, 4.1.15-gentoo-r1 x86_64)
=================================================================
System uname: Linux-4.1.15-gentoo-r1-x86_64-AMD_Athlon-tm-_64_X2_Dual_Core_Processor_6400+-with-gentoo-2.2
KiB Mem:     8181508 total,   4787008 free
KiB Swap:   17407996 total,  17407996 free
Timestamp of repository gentoo: Fri, 18 Mar 2016 08:15:01 +0000
sh bash 4.3_p42-r1
ld GNU ld (Gentoo 2.25.1 p1.1) 2.25.1
distcc 3.2rc1 x86_64-pc-linux-gnu [disabled]
ccache version 3.1.9 [enabled]
app-shells/bash:          4.3_p42-r1::gentoo
dev-java/java-config:     2.2.0::gentoo
dev-lang/perl:            5.20.2::gentoo
dev-lang/python:          2.7.10-r1::gentoo, 3.3.5-r1::gentoo, 3.4.3-r1::gentoo
dev-util/ccache:          3.1.9-r4::gentoo
dev-util/cmake:           3.3.1-r1::gentoo
dev-util/pkgconfig:       0.28-r2::gentoo
sys-apps/baselayout:      2.2::gentoo
sys-apps/openrc:          0.20.5::gentoo
sys-apps/sandbox:         2.10-r1::gentoo
sys-devel/autoconf:       2.13::gentoo, 2.69::gentoo
sys-devel/automake:       1.11.6-r1::gentoo, 1.12.6::gentoo, 1.13.4::gentoo, 1.14.1::gentoo, 1.15::gentoo
sys-devel/binutils:       2.25.1-r1::gentoo
sys-devel/gcc:            4.7.4::gentoo, 4.8.5::gentoo, 4.9.3::gentoo
sys-devel/gcc-config:     1.7.3::gentoo
sys-devel/libtool:        2.4.6::gentoo
sys-devel/make:           4.1-r1::gentoo
sys-kernel/linux-headers: 4.3::gentoo (virtual/os-headers)
sys-libs/glibc:           2.21-r2::gentoo
Repositories:

gentoo
    location: /usr/portage
    sync-type: rsync
    sync-uri: rsync://rsync.europe.gentoo.org/gentoo-portage
    priority: -1000

fedora
    location: /var/lib/layman/fedora
    masters: gentoo
    priority: 0

steam-overlay
    location: /var/lib/layman/steam-overlay
    masters: gentoo
    priority: 1

x-portage
    location: /usr/local/portage
    masters: gentoo
    priority: 2

Installed sets: @system
ACCEPT_KEYWORDS="amd64"
ACCEPT_LICENSE="*"
CBUILD="x86_64-pc-linux-gnu"
CFLAGS="-O2 -march=athlon64 -mtune=athlon64 -pipe -fstack-protector"
CHOST="x86_64-pc-linux-gnu"
CONFIG_PROTECT="/etc /usr/lib64/libreoffice/program/sofficerc /usr/share/config /usr/share/gnupg/qualified.txt /var/lib/hsqldb"
CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/dconf /etc/env.d /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/php/apache2-php5.5/ext-active/ /etc/php/apache2-php5.6/ext-active/ /etc/php/cgi-php5.5/ext-active/ /etc/php/cgi-php5.6/ext-active/ /etc/php/cli-php5.5/ext-active/ /etc/php/cli-php5.6/ext-active/ /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="-O2 -march=athlon64 -mtune=athlon64 -pipe -fstack-protector"
DISTDIR="/usr/portage/distfiles"
FCFLAGS="-O2 -pipe"
FEATURES="assume-digests binpkg-logs ccache 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 xattr"
FFLAGS="-O2 -pipe"
GENTOO_MIRRORS="http://distfiles.gentoo.org ftp://ftp.sh.cvut.cz/MIRRORS/gentoo/gentoo"
LANG="cs_CZ.UTF-8"
LDFLAGS="-Wl,-O1 -Wl,--as-needed"
MAKEOPTS="-j4 -l2.0"
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="/var/tmp"
USE="3dnow 3dnowext 7zip X X509 a52 aac aalib acl acpi additions afterimage aio alsa amd64 amr amrnb amrwb apache2 apng artswrappersuid authfile auto-hinter bash-completion berkdb blender-game bluetooth branding bzip2 cairo ccache cdda cddb cdio cdr cdrom cdsound cgi chroot clamav clamd clang cli cmdsubmenu consolekit cracklib crypt cscope cuda cups custom-cflags custom-optimization cxx dbus declarative dedicated device-mapper dia directfb doc down-root dri dts dv dvb dvd dvdnav dvdr dynload emboss emerald enca encode exif extensions extra fam fat fbcon ffmpeg fftw firefox flac flash fontconfig fortran freetts ftp fts3 fuse g3dvl gallium games gbm gd gdbm gdu geoip gif glamor glitz glut gmp gpm graphics gstreamer gtk gudev harfbuzz hddtemp hpn humanities iconv icq icu ident iptv ipv6 irc jabber jadetex jamu java javascript jit joystick jpeg kdrive kerberos kpathsea laptop lcms ldap libcaca libnotify libsamplerate lirc lm_sensors logrotate logwatch lzma lzo mad mainmenuhooks math mbrola md5sum mikmod minizip mmx mmxext mng mod modules mouse mozdevelop mp2 mp3 mp4 mpeg mpeg2 mpeg3 mplayer msn multilib multiuser music mysql nas ncurses nls nptl nsplugin ntfs ntfsprogs nvidia nvram ogg opencl opengl openmp pam pango pcre pda pdf php pixbuf png policykit ppds pstricks publishers python qt3support qt4 rar rdesktop readline rss rtc rtsp samba sasl savedconfig science screen sdl seamonkey seccomp sensord session setup setup-plugin sip sipim slang smime sound sounds sox spell srt sse sse2 sse3 ssl startup-notification stream submenu subtitles subversion suid svg sysfs syslog system-cairo system-icu system-jpeg system-sqlite tcpd tex4ht theora threads threadsafe tiff timercmd timerinfo tk truetype ttxtsubs udev udisks unicode unsupported upnp upower usb uvm v4l2 vcd vdpau vdr vim-syntax vim-with-x vlc vnc volctrl vorbis wav wifi wmf wxwidgets wxwindows x264 xattr xcb xcomposite xetex xft xine xinerama xml xosd xplanet xpm xscreensaver xv xvid xvmc zip 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="actions alias auth_basic auth_digest authn_anon authn_dbd 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 dbd deflate dir disk_cache env expires ext_filter file_cache filter headers ident imagemap include info log_config logio mem_cache mime mime_magic negotiation proxy proxy_ajp proxy_balancer proxy_connect proxy_http rewrite setenvif so speling status unique_id userdir usertrack vhost_alias" CALLIGRA_FEATURES="kexi words flow plan sheets stage tables krita karbon braindump author" CAMERAS="ptp2" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" CPU_FLAGS_X86="3dnow 3dnowext mmx mmxext sse sse2 sse3" 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 ublox ubx" INPUT_DEVICES="evdev keyboard joystick" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LIBREOFFICE_EXTENSIONS="presenter-console presenter-minimizer" LINGUAS="cs en" LIRC_DEVICES="devinput" NETBEANS_MODULES="cnd dlight enterprise ergonomics groovy identity mobility php profiler ruby apisupport harness ide java nb websvccommon" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php5-5" PYTHON_SINGLE_TARGET="python2_7" PYTHON_TARGETS="python2_7 python3_4" RUBY_TARGETS="ruby20 ruby21" USERLAND="GNU" VIDEO_CARDS="nvidia" 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:  CC, CPPFLAGS, CTARGET, CXX, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LC_ALL, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS, USE_PYTHON

[Comment 1 Yarda 2016-03-18 13:02:48 UTC]

Probably misconfiguration, I had proxy_balancer module specified in my make.conf.

[Comment 2 Yarda 2016-03-18 13:06:21 UTC]

Reopening, the proxy_balancer module support is manifested, thus it shouldn't be broken.

[Comment 3 Yarda 2016-03-18 13:21:16 UTC]

Addition of slotmem_shm module to my make.conf seems to resolve the issue. It was probably removed from the base profile. I don't know why it was removed, so feel free to reopen if you think it's  bug.

[Comment 4 Guy 2016-10-13 01:27:44 UTC]

I encounterd the same problem while trying to install www-app/owncloud.

Updating APACHE2_MODULES in /etc/portage/make.conf resolved the problem.

This is informational only. I suspect this isn't a bug in the usual sense. Rather, it's probably an historical artifact dating to when APACHE2_MODULES was added to make.conf. At that time, I believe that not setting APACHE2_MODULES in make.conf resulted in apache attempting to install all possible compatible modules. APACHE2_MODULES was supposed to be set to restrict the list of installed modules to ones you actually needed. 

From what I can tell, this is no longer true. The list of apache modules to install if APACHE2_MODUELS isn't set in make.conf is much more minimal than I expected.

Therefore, manually adding 'slotmem_shm' to APACHE2_MODULES in make.conf is probably simplest all around.