--- a/project_files/hwc/rtl/system.c	Mon Oct 15 19:43:30 2018 +0300
+++ b/project_files/hwc/rtl/system.c	Mon Oct 15 13:08:29 2018 -0400
@@ -74,7 +74,7 @@
     return result;
 }
 
-void fpcrtl_insert__vars(string255 *src, string255 *dst, SizeInt index) {
+void __attribute__((overloadable)) fpcrtl_insert__vars(string255 *src, string255 *dst, SizeInt index) {
     int num_insert;
     int num_shift;
     int num_preshift;