1 files changed, 2 insertions, 4 deletions
diff --git a/Source/cmGccDepfileReader.h b/Source/cmGccDepfileReader.h
index 66ff75d..c8a3748 100644
--- a/Source/cmGccDepfileReader.h
+++ b/Source/cmGccDepfileReader.h
@@ -8,10 +8,8 @@
 
 #include "cmGccDepfileReaderTypes.h"
 
-cm::optional<cmGccDepfileContent> cmReadGccDepfile(const char* filePath);
-
 /*
  * Read dependencies file and append prefix to all relative paths
  */
-cm::optional<cmGccDepfileContent> cmReadGccDepfile(const char* filePath,
-                                                   const std::string& prefix);
+cm::optional<cmGccDepfileContent> cmReadGccDepfile(
+  const char* filePath, const std::string& prefix = {});