When we have an umbrella directory in a module map, recursively walk
the subdirectories to find headers in submodules.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@146398 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Frontend/FrontendActions.cpp b/lib/Frontend/FrontendActions.cpp
index 5dabe81..a97a32b 100644
--- a/lib/Frontend/FrontendActions.cpp
+++ b/lib/Frontend/FrontendActions.cpp
@@ -161,7 +161,8 @@
llvm::error_code EC;
llvm::SmallString<128> DirNative;
llvm::sys::path::native(UmbrellaDir->getName(), DirNative);
- for (llvm::sys::fs::directory_iterator Dir(DirNative.str(), EC), DirEnd;
+ for (llvm::sys::fs::recursive_directory_iterator Dir(DirNative.str(), EC),
+ DirEnd;
Dir != DirEnd && !EC; Dir.increment(EC)) {
// Check whether this entry has an extension typically associated with
// headers.