--- a/project_files/hwc/rtl/system.h	Tue Oct 09 12:54:40 2018 -0400
+++ b/project_files/hwc/rtl/system.h	Thu Oct 11 23:43:31 2018 +0200
@@ -28,7 +28,9 @@
 /*
  * Insert a shortstring in another at a specified index
  */
-void        fpcrtl_insert__vars(string255 *src, string255 *dst, SizeInt index);
+void                                                        fpcrtl_insert__vars(string255 *src, string255 *dst, SizeInt index);
+void        __attribute__((overloadable))                   fpcrtl_insert__vars(astring *src, astring *dst, SizeInt index);
+
 #define     fpcrtl_insert(src, dst, index)                  fpcrtl_insert__vars(&(src), &(dst), index);
 #define     fpcrtl_Insert                                   fpcrtl_insert