# Make a local copy of the substitutions.
config.substitutions = list(config.substitutions)

config.substitutions.insert(0, ('%check-in-clang',
  '%%clang -fsyntax-only -x objective-c-header -fobjc-arc -fmodules '
  '-I %%clang-include-dir '
  '-fmodules-cache-path=%%t/clang-module-cache '
  '-isysroot %r/Inputs/clang-importer-sdk' % config.test_source_root) )

Check the generated headers with -fsyntax-only.
[swift2objc] Check the generated headers with -fsyntax-only.

Swift SVN r13619
