Use MRB_PRId instead of "%d"; fix #3515

mrbgems/mruby-proc-ext/src/proc.c

@@ -52,7 +52,10 @@ mrb_proc_inspect(mrb_state *mrb, mrb_value self)
 
     line = mrb_debug_get_line(irep, 0);
     if (line != -1) {
-      mrb_str_append(mrb, str, mrb_fixnum_value(line));
+      char buf[32];
+
+      snprintf(buf, sizeof(buf), "%"MRB_PRId, line);
+      mrb_str_cat_cstr(mrb, str, buf);
     }
     else {
       mrb_str_cat_lit(mrb, str, "-");

src/error.c

@@ -152,7 +152,7 @@ exc_inspect(mrb_state *mrb, mrb_value exc)
     char buf[32];
 
     str = mrb_str_dup(mrb, file);
-    snprintf(buf, sizeof(buf), ":%d: ", mrb_fixnum(line));
+    snprintf(buf, sizeof(buf), ":%"MRB_PRId": ", mrb_fixnum(line));
     mrb_str_cat_cstr(mrb, str, buf);
     if (append_mesg) {
       mrb_str_cat_str(mrb, str, mesg);