diff --git a/ConfigureChecks.cmake b/ConfigureChecks.cmake
index 913cebd7..3530b579 100644
--- a/ConfigureChecks.cmake
+++ b/ConfigureChecks.cmake
@@ -370,6 +370,8 @@ int main(void) {
     return 0;
 }" HAVE_COMPILER__FUNCTION__)
 
+# This is only available with OpenBSD's gcc implementation */
+if (OPENBSD)
 check_c_source_compiles("
 #define ARRAY_LEN 16
 void test_attr(const unsigned char *k)
@@ -378,6 +380,7 @@ void test_attr(const unsigned char *k)
 int main(void) {
     return 0;
 }" HAVE_GCC_BOUNDED_ATTRIBUTE)
+endif(OPENBSD)
 
 # Stop treating warnings as errors
 unset(CMAKE_REQUIRED_FLAGS)