diff --git a/include/llvm/Config/config.h.cmake b/include/llvm/Config/config.h.cmake
index 180e8c52385..cfe98528d4a 100644
--- a/include/llvm/Config/config.h.cmake
+++ b/include/llvm/Config/config.h.cmake
@@ -364,13 +364,13 @@
 #undef HAVE_STRDUP
 
 /* Define to 1 if you have the `strerror' function. */
-#cmakedefine HAVE_STRERROR
+#cmakedefine HAVE_STRERROR ${HAVE_STRERROR}
 
 /* Define to 1 if you have the `strerror_r' function. */
-#cmakedefine HAVE_STRERROR_R
+#cmakedefine HAVE_STRERROR_R ${HAVE_STRERROR_R}
 
 /* Define to 1 if you have the `strerror_s' function. */
-#cmakedefine HAVE_STRERROR_S
+#cmakedefine HAVE_STRERROR_S ${HAVE_STRERROR_S}
 
 /* Define to 1 if you have the <strings.h> header file. */
 #undef HAVE_STRINGS_H