From 64b429d6f82111d02ab27e2b41373acfb88abeed Mon Sep 17 00:00:00 2001
From: Holger Vogt <holger.vogt@uni-due.de>
Date: Sun, 18 Sep 2022 16:00:21 +0200
Subject: [PATCH] Don't send error message to stdout, but to stderr.

---
 src/frontend/inp.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/frontend/inp.c b/src/frontend/inp.c
index f1d0173a3..ad7099ccd 100644
--- a/src/frontend/inp.c
+++ b/src/frontend/inp.c
@@ -1305,10 +1305,10 @@ inp_dodeck(
 
                 if (p == dd->error) {
                     if (strstr(dd->line, ".model"))
-                        out_printf("Warning: Model issue on line %d :\n  %.*s ...\n%s\n",
+                        fprintf(stderr, "Warning: Model issue on line %d :\n  %.*s ...\n%s\n",
                                    dd->linenum_orig, 72, dd->line, dd->error);
                     else {
-                        out_printf("Error on line %d or its substitute:\n  %s\n%s\n",
+                        fprintf(stderr, "Error on line %d or its substitute:\n  %s\n%s\n",
                                    dd->linenum_orig, dd->line, dd->error);
                         have_err = TRUE;
                         return 1;