make CC='gcc -arch ppc -arch ppc64 -arch i386 -arch x86_64 -isysroot /Developer/SDKs/MacOSX10.4u.sdk -mmacosx-version-min=10.4' LD='ld -arch ppc -arch ppc64 -arch i386 -arch x86_64' -f makefile.u hadd all libf2c.a libf2c.2.1.dylib