Daniel Sanders d5b0d52a8c Fix builds for older macOS deployment targets after r354365
Surprisingly, check_symbol_exists is not sufficient. The macOS linker checks the
called functions against a compatibility list for the given deployment target
and check_symbol_exists doesn't trigger this check as it never calls the
function.

This fixes the GreenDragon bots where the deployment target is 10.9

llvm-svn: 354374
2019-02-19 19:45:03 +00:00
..
2017-07-21 22:48:47 +00:00

See docs/CMake.html for instructions on how to build LLVM with CMake.