[libc++abi] Specify unwind lib before other system libraries when linking
This matters on OSX because static linking orders is also the order dyld
uses to search for libs (the default - Two-level namespace). If system
libs (including unwind lib) are specified before local unwind lib, local
unwind lib would never be picked up by dyld.
Before:
$ otool -L lib/libc++abi.dylib
@rpath/libc++abi.1.dylib (compatibility version 1.0.0, current version 1.0.0)
/usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 1252.200.5)
@rpath/libunwind.1.dylib (compatibility version 1.0.0, current version 1.0.0)
After:
$ otool -L lib/libc++abi.dylib
@rpath/libc++abi.1.dylib (compatibility version 1.0.0, current version 1.0.0)
@rpath/libunwind.1.dylib (compatibility version 1.0.0, current version 1.0.0)
/usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 1252.200.5)
Thanks to Yuanfang Chen for the patch.
Differential Revision: https://reviews.llvm.org/D57496
git-svn-id: https://llvm.org/svn/llvm-project/libcxxabi/trunk@355241 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed
