# HG changeset patch
# User Mike Becker <universe@uap-core.de>
# Date 1720721639 -7200
# Node ID ce67b1b2e97960cdede78726242eba8911651608
# Parent  9e483a0e3f52de456bcf4b0498d044f23796066b
hotfix: do not try to append file when none is specified

fixes #395

diff -r 9e483a0e3f52 -r ce67b1b2e979 src/frontend.c
--- a/src/frontend.c	Thu Jul 11 20:05:26 2024 +0200
+++ b/src/frontend.c	Thu Jul 11 20:13:59 2024 +0200
@@ -44,6 +44,7 @@
 } Settings;
 
 static int appendfile(const char *filename, FILE *fout, const char *errmsg) {
+    if (filename == NULL) return 0; // nothing to append
     FILE *fin = fopen(filename, "r");
     if (!fin) {
         perror(errmsg);