+ if (fatal_errors)
+ abort();
+}
+void errorf(const source_position_t pos, const char *const fmt, ...)
+{
+ va_list ap;
+ va_start(ap, fmt);
+ errorvf(pos, fmt, ap);
+ va_end(ap);
+
+ if (fatal_errors)
+ exit(1);
+}
+
+static void warningvf(const source_position_t pos,
+ const char *const fmt, va_list ap)
+{
+ fprintf(stderr, "%s:%u: warning: ", pos.input_name, pos.linenr);
+ ++warning_count;
+ diagnosticvf(fmt, ap);
+ fputc('\n', stderr);