build/asan: Fix ASAN build for i386, for reasons I don't really understand we
get the DARWIN_UNIX03 definition on x86_64 but not on i386.

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@145657 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed