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-rw-r--r--Source/cmGccDepfileReader.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/Source/cmGccDepfileReader.h b/Source/cmGccDepfileReader.h
index 395dd77..59ed7fd 100644
--- a/Source/cmGccDepfileReader.h
+++ b/Source/cmGccDepfileReader.h
@@ -2,6 +2,8 @@
file Copyright.txt or https://cmake.org/licensing for details. */
#pragma once
+#include <cm/optional>
+
#include "cmGccDepfileReaderTypes.h"
-cmGccDepfileContent cmReadGccDepfile(const char* filePath);
+cm::optional<cmGccDepfileContent> cmReadGccDepfile(const char* filePath);