Fix 10.5 SDK PowerPC64 libgcc_s.10.5.dylib link errors. #74
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Fixes linking issues for PowerPC64 binaries caused by overwriting the libgcc_s.10.5.dylib in the 10.5 SDK with the equivalent library from the 10.6 SDK--which does not contain a PowerPC64 binary--by copying the PowerPC64 binary from the former into the latter with lipo. Linking a PowerPC64 binary without this patch results in the following: ``` $ powerpc-apple-darwin10-gcc-4.2.1 -m64 -isysroot /Developer/SDKs/MacOSX10.5.sdk -mmacosx-version-min=10.5 test.c ld: warning: in /Developer/SDKs/MacOSX10.5.sdk/usr/lib/libgcc_s.10.5.dylib, missing required architecture ppc64 in file $ otool-classic -L a.out a.out: /usr/lib/libz.1.dylib (compatibility version 1.0.0, current version 1.2.3) /usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 111.1.4) ``` With this patch, instead: ``` $ powerpc-apple-darwin10-gcc-4.2.1 -m64 -isysroot /Developer/SDKs/MacOSX10.5.sdk/ -mmacosx-version-min=10.5 test.c $ otool-classic -L a.out a.out: /usr/lib/libz.1.dylib (compatibility version 1.0.0, current version 1.2.3) /usr/lib/libgcc_s_ppc64.1.dylib (compatibility version 1.0.0, current version 1.0.0) /usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 111.1.4) ```
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Fixes linking issues for PowerPC64 binaries caused by overwriting the libgcc_s.10.5.dylib in the 10.5 SDK with the equivalent library from the 10.6 SDK--which does not contain a PowerPC64 binary. This is done by copying the PowerPC64 binary from the former into the latter with lipo.
Linking a PowerPC64 binary without this patch results in the following:
With this patch, instead:
With more complex programs, I have had this cause link failures due to missing symbols. I've only tested this patch in High Sierra, so please review and test carefully before merging.
Fixes #69.