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-rw-r--r--Modules/CMakeCCompilerId.c.in6
1 files changed, 6 insertions, 0 deletions
diff --git a/Modules/CMakeCCompilerId.c.in b/Modules/CMakeCCompilerId.c.in
index 75e9d1a..1f19c00 100644
--- a/Modules/CMakeCCompilerId.c.in
+++ b/Modules/CMakeCCompilerId.c.in
@@ -11,6 +11,12 @@
# define volatile
#endif
+#if !defined(__has_include)
+/* If the compiler does not have __has_include, pretend the answer is
+ always no. */
+# define __has_include(x) 0
+#endif
+
@CMAKE_C_COMPILER_ID_CONTENT@
/* Construct the string literal in pieces to prevent the source from