gmp: libgmpxx.4.dylib: No such file or directory about legacy-linuxbrew HOT 13 CLOSED

gmp hasn't yet been patched to remove the MacOS-specific stuff. A pull request would be happily accepted. Use if OS.mac? as necessary.

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@sjackman How to use and where to place if OS.mac??

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@sjackman I have figured out how to add if OS.mac? for gmp4 and mpfr2, so where should these changes be pulled?

from legacy-linuxbrew.

@sjackman Hi, I found make check failed because it can not find keg-only library. For example, when make check mpfr2, gmp4's lib directory should be in LD_LIBRARY_PATH. Currently, I made the following changes:

system "make check" if OS.mac?
system "export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:#{gmp4.opt_prefix}/lib && make check" if OS.linux?

Is that OK?

from legacy-linuxbrew.

If the patch won't be merged upstream into Homebrew, I prefer as small a patch as possible, to reduce merge conflicts. In this case, I'd just use:

    system "make check" unless OS.linux? # Fails without LD_LIBRARY_PATH

The real solution is to make sure on Linux systems that the LD_LIBRARY_PATH environment variable is not cleared by superenv.

from legacy-linuxbrew.

@sjackman I think we can not put the installed gmp4, mpfr2 and so on into LD_LIBRARY_PATH, since they may cause conflicts with the system ones. I don't know why it is OK in Mac.

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@sjackman I have successfully installed gcc49, but libgcc_s.so in .linuxbrew/opt/gcc49/lib/gcc/x86_64-unknown-linux-gnu/{lib32, lib64} is not linked into .linuxbrew/opt/gcc49/lib/gcc/x86_64-unknown-linux-gnu/4.9.0, and this cause

/usr/bin/ld: cannot find -lgcc_s
collect2: error: ld returned 1 exit status

When I $ export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:~/.linuxbrew/opt/gcc49/lib/gcc/x86_64-unknown-linux-gnu/lib64, the error is gone.

from legacy-linuxbrew.

@dongli On Mac OS, the path to libgcc_s.1.dylib is hardcoded in the executable:

$ gcc-4.8 hello.c -o hello
$ otool -L hello
hello:
    /usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 1197.1.1)
    /usr/local/Cellar/gcc48/4.8.2/gcc/lib/libgcc_s.1.dylib (compatibility version 1.0.0, current version 1.0.0)
$ otool -l hello |grep gcc_s
         name /usr/local/Cellar/gcc48/4.8.2/gcc/lib/libgcc_s.1.dylib (offset 24)

from legacy-linuxbrew.

@dongli I've compiled gcc48 on Linux and reproduced your error:

$ gcc-4.8 hello.c -o hello
/usr/bin/ld: cannot find -lgcc_s
collect2: error: ld returned 1 exit status

from legacy-linuxbrew.

So what should we do to remove this little inconvenience?

from legacy-linuxbrew.

I don't have a quick fix. It's going to require some troubleshooting.

from legacy-linuxbrew.

This appears to be a known issue, bug 32415.

This workaround worked for me:

cd `brew --prefix gcc48`/lib/gcc/x86_64-unknown-linux-gnu/4.8.2
ln -s ../lib64/libgcc_s.so* .

from legacy-linuxbrew.

I've created a new issue, #66.

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