llvm/clang/test/Modules/Inputs/crash-recovery/usr/include/module.modulemap

module cstd [system] {
  // Only in system headers directory
  module stdio {
    header "stdio.h"
  }

  module pthread {
    header "pthread.h"
    export *

    module impl {
      header "pthread_impl.h"
      export *
    }
  }
}