Bug 465642 – revdep-rebuild misses libmpc.so.2 dependency in gcc

• Product: Portage Development
• Status: RESOLVED DUPLICATE

[Description aditsu 2013-04-12 08:23:43 UTC]

I upgraded dev-libs/mpc (0.8.2 to 1.0.1) on this machine, was prompted about old library versions, so I manually ran "revdep-rebuild --library '/usr/lib64/libmpc.so.2' -- -av" which said "There are no dynamic links to /usr/lib64/libmpc.so.2... All done."
So I deleted libmpc.so.2 and then I found that gcc stopped working when trying to compile anything: "/usr/libexec/gcc/x86_64-pc-linux-gnu/4.5.4/cc1: error while loading shared libraries: libmpc.so.2: cannot open shared object file: No such file or directory"
I ran "revdep-rebuild -i -- -av" to check again, and it said "Dynamic linking on your system is consistent... All done."

Reproducible: Always

Steps to Reproduce:
1. Upgrade dev-libs/mpc from 0.8.2 to 1.0.1 (having gcc previously compiled with the old mpc)
2. revdep-rebuild --library '/usr/lib64/libmpc.so.2'
Actual Results:  
There are no dynamic links to /usr/lib64/libmpc.so.2... All done.

Expected Results:  
Recompile gcc

emerge --info (after switching to gcc 4.4.5 which still works):
Portage 2.1.11.55 (default/linux/amd64/13.0, gcc-4.4.5, glibc-2.15-r3, 2.6.35.4-rscloud x86_64)
=================================================================
System uname: Linux-2.6.35.4-rscloud-x86_64-Quad-Core_AMD_Opteron-tm-_Processor_2374_HE-with-gentoo-2.1
KiB Mem:      251140 total,     15696 free
KiB Swap:    2097144 total,   1848740 free
Timestamp of tree: Tue, 02 Apr 2013 00:30:01 +0000
ld GNU ld (GNU Binutils) 2.22
distcc 3.1 x86_64-pc-linux-gnu [disabled]
app-shells/bash:          4.2_p37
dev-java/java-config:     2.1.12-r1
dev-lang/python:          2.7.3-r3, 3.2.3-r2
dev-util/pkgconfig:       0.28
sys-apps/baselayout:      2.1-r1
sys-apps/openrc:          0.9.8.4
sys-apps/sandbox:         2.5
sys-devel/autoconf:       2.69
sys-devel/automake:       1.11.6
sys-devel/binutils:       2.22-r1
sys-devel/gcc:            4.4.5, 4.5.4
sys-devel/gcc-config:     1.7.3
sys-devel/libtool:        2.4-r1
sys-devel/make:           3.82-r4
sys-kernel/linux-headers: 3.7 (virtual/os-headers)
sys-libs/glibc:           2.15-r3
Repositories: gentoo aditsu
ACCEPT_KEYWORDS="amd64"
ACCEPT_LICENSE="* -@EULA"
CBUILD="x86_64-pc-linux-gnu"
CFLAGS="-O2 -pipe -march=native"
CHOST="x86_64-pc-linux-gnu"
CONFIG_PROTECT="/etc /usr/share/openvpn/easy-rsa /var/bind"
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"
CXXFLAGS="-O2 -pipe -march=native"
DISTDIR="/usr/portage/distfiles"
FCFLAGS="-O2 -pipe"
FEATURES="assume-digests binpkg-logs config-protect-if-modified distlocks ebuild-locks fixlafiles merge-sync news parallel-fetch protect-owned sandbox sfperms strict unknown-features-warn unmerge-logs unmerge-orphans userfetch"
FFLAGS="-O2 -pipe"
GENTOO_MIRRORS="http://gentoo.cites.uiuc.edu/pub/gentoo/"
LANG="en_US.UTF-8"
LDFLAGS="-Wl,-O1 -Wl,--as-needed"
MAKEOPTS="-j1"
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="/home/aditsu/ebuilds"
SYNC="rsync://rsync.gentoo.org/gentoo-portage"
USE="acl amd64 berkdb bzip2 cjk cli cracklib crypt cxx dovecot-sasl dri gdbm geoip iconv ipv6 java managesieve mmx modules mudflap multilib ncurses nls nptl openmp pam pcre postgres readline session sieve sse sse2 ssl tcpd threads unicode vhosts zlib zsh-completion" 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" 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="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" CAMERAS="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="keyboard mouse evdev" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LIBREOFFICE_EXTENSIONS="presenter-console presenter-minimizer" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php5-3" PYTHON_SINGLE_TARGET="python2_7" PYTHON_TARGETS="python2_7 python3_2" RUBY_TARGETS="ruby18 ruby19" USERLAND="GNU" VIDEO_CARDS="fbdev glint intel mach64 mga nouveau nv r128 radeon savage sis tdfx trident vesa via vmware dummy v4l" 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

[Comment 1 aditsu 2013-04-12 08:32:20 UTC]

revdep-rebuild (and gentoolkit) version 0.3.0.6-r3
gcc version 4.5.4

[Comment 2 Samuli Suominen (RETIRED) 2013-04-12 08:56:52 UTC]

You should have used `revdep-rebuild --library libmpc.so.2` without the path.

Unfortunately a known bug wrt bug 357225

*** This bug has been marked as a duplicate of bug 357225 ***

[Comment 3 aditsu 2013-04-12 09:14:06 UTC]

(In reply to comment #2)
> You should have used `revdep-rebuild --library libmpc.so.2` without the path.

I used the path because that's what the emerge message said. If you expect people to do revdep-rebuild without the path then the message needs to be modified.

[Comment 4 aditsu 2013-04-12 09:23:28 UTC]

Also, what about revdep-rebuild with no library argument? Why does it not detect the broken gcc after deleting libmpc.so.2?

[Comment 5 Paul Varner (RETIRED) 2013-04-12 13:23:35 UTC]

I saw your note in the portage preserved-rebuild bug and have tried duplicating your issue several times. Unfortunately, it works for me.

[Comment 6 aditsu 2013-04-15 16:44:10 UTC]

(In reply to comment #5)
> I saw your note in the portage preserved-rebuild bug and have tried
> duplicating your issue several times. Unfortunately, it works for me.

Let me know if there's anything you'd like me to do to help investigate it.