diff -r d2bbf907a189 -r 3b985a4eb05b src/ucx.c
--- a/src/ucx.c	Fri Sep 28 21:47:30 2018 +0200
+++ b/src/ucx.c	Sun Oct 07 09:00:08 2018 +0200
@@ -45,8 +45,7 @@
 
 #include "ucx/ucx.h"
 
-#ifndef UCX_MUL_BUILTIN
-int ucx_szmul(size_t a, size_t b, size_t *result) {
+int ucx_szmul_impl(size_t a, size_t b, size_t *result) {
     if(a == 0 || b == 0) {
         *result = 0;
         return 0;
@@ -60,5 +59,4 @@
         return 1;
     }
 }
-#endif