fix: counter breaks while loop

src/gen.c

@@ -42,7 +42,7 @@ bool gen_cmd() {
   info(_("Copying all the targets"));
   bar_init();
 
-  while (cur && counter++) {
+  while (cur && ++counter > 0) {
     if(!target_copy(cur, true)){
       error(_("Failed to copy the target:"));
       details(errch);