llvm-gcc42: can't find bits/c++config.h on Leopard/PPC

[mklein-de (Michael Klein)]

My llvm-g++-4.2 isn't able to compile anything using STL:

$ echo "#include <vector>" | /opt/local/bin/llvm-g++-4.2 -xc++ - 2>&1 | head -10
In file included from /usr/include/c++/4.0.0/vector:66,
                 from <stdin>:1:
/usr/include/c++/4.0.0/bits/stl_algobase.h:64:28: error: bits/c++config.h: No such file or directory
In file included from /usr/include/c++/4.0.0/bits/stl_algobase.h:69,
                 from /usr/include/c++/4.0.0/vector:66,
                 from <stdin>:1:
/usr/include/c++/4.0.0/iosfwd:45:29: error: bits/c++locale.h: No such file or directory
/usr/include/c++/4.0.0/iosfwd:46:25: error: bits/c++io.h: No such file or directory
In file included from /usr/include/c++/4.0.0/vector:67,
                 from <stdin>:1:

llvm-gcc42 and the headers in /usr/include/c++/4.0.0 seem to disagree on the platform name:

$ /opt/local/bin/llvm-g++-4.2 -dumpmachine
ppc-apple-darwin9

but:

$ ls -d /usr/include/c++/4.0.0/*apple-darwin9 | cat
/usr/include/c++/4.0.0/i686-apple-darwin9
/usr/include/c++/4.0.0/powerpc-apple-darwin9
/usr/include/c++/4.0.0/powerpc64-apple-darwin9
/usr/include/c++/4.0.0/x86_64-apple-darwin9

As a workaround I created symlink ppc-apple-darwin9 pointing to powerpc-apple-darwin9, which seems to make llvm-gcc42 work flawlessly.

$ ln -s powerpc-apple-darwin9 /usr/include/c++/4.0.0/ppc-apple-darwin9

[jeremyhu (Jeremy Huddleston Sequoia)]

This was fixed in r101497

[jeremyhu (Jeremy Huddleston Sequoia)]

(ie, llvm-gcc42 doesn't support ppc)