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-rw-r--r--lib/Driver/InitHeaderSearch.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/Driver/InitHeaderSearch.cpp b/lib/Driver/InitHeaderSearch.cpp
index 3ebca8e175..a2fa826d0c 100644
--- a/lib/Driver/InitHeaderSearch.cpp
+++ b/lib/Driver/InitHeaderSearch.cpp
@@ -81,7 +81,7 @@ void InitHeaderSearch::AddPath(const std::string &Path, IncludeDirGroup Group,
void InitHeaderSearch::AddEnvVarPaths(const char *Name) {
const char* at = getenv(Name);
- if (!at)
+ if (!at || *at == 0) // Empty string should not add '.' path.
return;
const char* delim = strchr(at, llvm::sys::PathSeparator);