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-rw-r--r--Modules/CheckCCompilerFlag.cmake1
1 files changed, 1 insertions, 0 deletions
diff --git a/Modules/CheckCCompilerFlag.cmake b/Modules/CheckCCompilerFlag.cmake
index 5a7298b81..9d2c74dbd 100644
--- a/Modules/CheckCCompilerFlag.cmake
+++ b/Modules/CheckCCompilerFlag.cmake
@@ -32,6 +32,7 @@ effect or even a specific one is beyond the scope of this module.
in such variables may cause a false negative for this check.
#]=======================================================================]
+include_guard(GLOBAL)
include(CheckCSourceCompiles)
include(CMakeCheckCompilerFlagCommonPatterns)