diff --git a/ConfigureChecks.cmake b/ConfigureChecks.cmake
index 0faa3150..7103f303 100644
--- a/ConfigureChecks.cmake
+++ b/ConfigureChecks.cmake
@@ -375,6 +375,23 @@ int main(void) {
     return 0;
 }" HAVE_FALLTHROUGH_ATTRIBUTE)
 
+check_c_source_compiles("
+#define WEAK __attribute__((weak))
+
+WEAK int sum(int a, int b)
+{
+    return a + b;
+}
+
+int main(void)
+{
+    int i = sum(2, 2);
+
+    (void)i;
+
+    return 0;
+}" HAVE_WEAK_ATTRIBUTE)
+
 if (NOT WIN32)
     check_c_source_compiles("
     #define __unused __attribute__((unused))
diff --git a/config.h.cmake b/config.h.cmake
index 5c358fb4..1357615b 100644
--- a/config.h.cmake
+++ b/config.h.cmake
@@ -225,6 +225,7 @@
 
 #cmakedefine HAVE_FALLTHROUGH_ATTRIBUTE 1
 #cmakedefine HAVE_UNUSED_ATTRIBUTE 1
+#cmakedefine HAVE_WEAK_ATTRIBUTE 1
 
 #cmakedefine HAVE_CONSTRUCTOR_ATTRIBUTE 1
 #cmakedefine HAVE_DESTRUCTOR_ATTRIBUTE 1