more on NULL versus functions.

Function pointers are not void*.  See also
ce4ea956d24eab5089a143bba38126f2b11b55b6
8427fca49bd85205f5a8766292dd893f003c0e48

1 files changed, 2 insertions, 1 deletions

diff --git a/dln.c b/dln.c
index 78c4c45a1f..2251547c54 100644
--- a/dln.c
+++ b/dln.c
@@ -1254,7 +1254,8 @@ static bool
 dln_incompatible_library_p(void *handle)
 {
     void *ex = dlsym(handle, EXTERNAL_PREFIX"ruby_xmalloc");
-    return ex && ex != ruby_xmalloc;
+    void *const fp = (void *)ruby_xmalloc;
+    return ex && ex != fp;
 }
 COMPILER_WARNING_POP
 #endif