Legal: Add NO WARRANTY everywhere

[subdirmk.git] / generate

diff --git a/generate b/generate
index ad8c9eadecf8ae1df38183cdb8e010cd53fff865..bcbbf79dde7d86b5ad1b3ff5ba3b30b1ca2359d8 100755 (executable)
--- a/generate
+++ b/generate
@@ -3,6 +3,7 @@
 # subdirmk - &-filter (makefile generation program)
 #  Copyright 2019 Ian Jackson
 # SPDX-License-Identifier: LGPL-2.0-or-later
+# There is NO WARRANTY.
 #
 # $(srcdir)/subdirmk/generate [--srcdir=SRCDIR] [--] SUBDIR...
 #
@@ -187,7 +188,9 @@ our %warn_unk;
 
 sub err ($) {
     my ($m) = @_;
-    die "subdirmk: ${err_file}:$.: $m\n";
+    die defined $err_file
+       ? "subdirmk: ${err_file}:$.: $m\n"
+       : "subdirmk: $m\n";
 }
 
 sub wrncore ($$) {