Add -isystem-prefix and -ino-system-prefix arguments, which can be used to
override whether headers are system headers by checking for prefixes of the
header name specified in the #include directive.

This allows warnings to be disabled for third-party code which is found in
specific subdirectories of include paths.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158418 91177308-0d34-0410-b5e6-96231b3b80d8
14 files changed