Check for GCC paths that have the target triple in them.  This is required for a lot of cross-compile toolchains.  Also add some slightly better support for -B.

llvm-svn: 140645
3 files changed
tree: 5d8e847681418bdbd3a70b0b1edc770b4497c25c
  1. clang/
  2. compiler-rt/
  3. debuginfo-tests/
  4. libcxx/
  5. libcxxabi/
  6. lldb/
  7. llvm/
  8. polly/