[gentoo-amd64] Re: revdep-rebuild, Firefox, Thunderbird, GCC

[Duncan]

"John P. Burkett" <burkett@×××.edu> posted 4A2D3554.6050400@×××.edu,
excerpted below, on  Mon, 08 Jun 2009 11:59:16 -0400:

> Last night on a amd64 machine I (perhaps rashly) did emerge --update
> --newuse --deep world emerge --depclean
> revdep-rebuild
>
> The last command produced the following error message:
>  *
>  * ERROR: sci-libs/blas-atlas-3.8.0 failed. * Call stack:
>  *               ebuild.sh, line   49:  Called src_unpack *
>  environment, line 3016:  Called die * The specific snippet of code:
>  *       ../configure --cc="$(tc-getCC)" --cflags="${CFLAGS}"
> --prefix="${D}/${DESTTREE}"
> --libdir="${D}/${DESTTREE}"/$(get_libdir)/atlas
> --incdir="${D}/${DESTTREE}"/include -C ac "$(tc-getCC)" -F ac
> "${CFLAGS}" -C if ${FORTRANC} -F if "${FFLAGS:--O2}" -Ss pmake "\$(MAKE)
> ${MAKEOPTS}" -Si cputhrchk 0 ${archselect} || die "configure failed"
>  *  The die message:
>  *   configure failed
>
> After that, Firefox and Thunderbird wouldn't start.
>
> The error message from Firefox is
> /opt/firefox/firefox-bin: /lib32/libgcc_s.so.1: version `GCC_4.2.0' not
> found (required by
> /usr/lib/gcc/x86_64-pc-linux-gnu/4.3.2/32/libstdc++.so.6)
>
> That from Thunderbird is
> /usr/lib64/mozilla-thunderbird/thunderbird-bin: /lib/libgcc_s.so.1:
> version `GCC_4.2.0' not found (required by
> /usr/lib/gcc/x86_64-pc-linux-gnu/4.3.2/libstdc++.so.6) thunderbird-bin
> exited with non-zero status (1)
>
> The common theme is  "version `GCC_4.2.0' not found"  A more recent GCC
> is installed instead.
>
> I'd be grateful for suggestions about how to resolve the revdep-rebuild
> error and how to get Firefox and Thunderbird running again.

Anytime you see errors due to libstdc++, the first thing to do is to run 
fix_libtool_files.sh.  Run it (as root) without options, and it'll spit 
out some instructions, but basically, you feed it the OLD gcc version and 
it updates any libtool files (*.la files) it finds that point to that 
version, pointing them to the new version also.

Do that first.  Then try revdep-rebuild again and see if you have the 
same problem.  You may have other problems too or that may not fix it in 
this particular case, but as I said, anytime you see libstdc++ issues, 
that's the first thing to try.

Also note that when you upgrade to new gcc versions, at least new slots 
(so 4.2 to 4.3 but not necessarily 4.3.0 to 4.3.1), Gentoo recommends 
that you do an emerge --empty-tree world afterward, or at least before 
you remove the old gcc version.  That's why it's slotted, so you can have 
multiple versions installed at once and can switch between them using gcc-
config, and also to give you a chance to recompile stuff with the new 
version before removing the old, since sometimes the ABIs different gcc 
versions compile aren't completely compatible.  Often, you can get away 
without doing the --empty-tree recompile, but it's recommended, and will 
help avoid problems.

-- 
Duncan - List replies preferred.   No HTML msgs.
"Every nonfree program has a lord, a master --
and if you use the program, he is your master."  Richard Stallman