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MalleRIM
Guru
Joined: 23 Jul 2007
Posts: 563
Location: China
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 Posted: Tue Jun 17, 2008 2:10 pm Post subject: gcc downgrade: ld: GLIBCXX_3.4.9 problem |
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Hi,
I had gcc-4.2.3 installed for icedtea. But now, as icedtea does not need it anymore, I did a downgrade to stable (4.1.2). I rebuilt the toolchain and I also had to rebuild several other programs that didn't work anymore (paludis (using portage), openoffice, vlc). reconcilio and revdep-rebuild didn't discover the breakage. But now I'm facing the problem that I don't know what to recompile. Compiling gnome-system-monitor (which doesn't work either) stops with an ld warning:
| Code: | /usr/lib64/libcairomm-1.0.so: undefined reference to `std::basic_ostream<char, std::char_traits<char> >& std::__ostream_insert<char, std::char_traits<char> >(std::basic_ostream<char, std::char_traits<char> >&, char const*, long)@GLIBCXX_3.4.9'
collect2: ld returned 1 exit status |
ld /usr/lib64/libcairomm-1.0.so prints a very similar warning:
| Code: | ld: warning: cannot find entry symbol _start; not setting start address
/usr/lib64/libcairomm-1.0.so: undefined reference to `std::basic_ostream<char, std::char_traits<char> >& std::__ostream_insert<char, std::char_traits<char> >(std::basic_ostream<char, std::char_traits<char> >&, char const*, long)@GLIBCXX_3.4.9' |
so it doesn't have anything to do with the gnome-system-monitor package, recompiling cairo doesn't help. /usr/bin/ld and the file it points at (/usr/bin/x86_64-pc-linux-gnu-ld) seem to be orphaned as they don't belong to any package installed.
So which package do I have to recompile to solve that problem?
edit: i found out, that /usr/bin/x86_64-pc-linux-gnu-ld is a link, pointing to a file in the gcc directory being a link, pointing to another file in that directory, being another link pointing to a file in the binutils directory so I recompiled binutils - without any success. The file are probably not orphaned but created by gcc-config. |
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Carlo
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Joined: 12 Aug 2002
Posts: 3356
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| Posted: Tue Jun 17, 2008 3:05 pm Post subject: |
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Downgrading is not trivial. You need to rebuild all interdepending software linked against libstdc++ built with the newer compiler. And please: Read and learn about the toolchain you are using or stay with stable keyworded ebuilds. There's no point using the newer GCC when you don't know what you do.
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MalleRIM
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Joined: 23 Jul 2007
Posts: 563
Location: China
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| Posted: Tue Jun 17, 2008 3:18 pm Post subject: |
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Thanks for your reply,
Breakages are not too bad for me since I don't use my computer for productivity tasks but for playing around with the software. And when I need a working computer I can still use an other one. I had to use gcc-4.2 for icedtea so it wasn't just for fun.
I guess I will just rebuild any package compiled with 4.2, using a script to check out the environment.bz2 of my installed packages. That will most certainly fix all breakages. |
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