b579f4fd5c
There were two problems preventing GHC 7.0.2 from being built on MacOS. For one, the 'configure' script automatically added the flag -isysroot /Developer/SDKs/MacOSX10.5.sdk to the command-line that's being passed to GCC. This setting doesn't work with our GCC, and resulted in build errors because standard headers like <stdargs.h> could no longer be found. Secondly, the build depends on install_name_tool, which has been added as a buildInput. These changes trigger a re-build on all platforms, not just on Darwin. I realize that this could have been avoided by adding some cruft. However, I didn't want to add cruft, so there you are. svn path=/nixpkgs/trunk/; revision=26513