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Diffstat (limited to 'Build/source/texk/seetexk/dviconcat.c')
-rw-r--r--Build/source/texk/seetexk/dviconcat.c12
1 files changed, 7 insertions, 5 deletions
diff --git a/Build/source/texk/seetexk/dviconcat.c b/Build/source/texk/seetexk/dviconcat.c
index 0184829e609..18e3c14c890 100644
--- a/Build/source/texk/seetexk/dviconcat.c
+++ b/Build/source/texk/seetexk/dviconcat.c
@@ -404,11 +404,13 @@ main(int argc, char **argv)
int ac;
char **av, *enc;
- kpse_set_program_name(argv[0], "dviconcat");
- enc = kpse_var_value("command_line_encoding");
- if (get_command_line_args_utf8(enc, &ac, &av)) {
- argc = ac;
- argv = av;
+ if (argc>1) {
+ kpse_set_program_name(argv[0], "dviconcat");
+ enc = kpse_var_value("command_line_encoding");
+ if (get_command_line_args_utf8(enc, &ac, &av)) {
+ argc = ac;
+ argv = av;
+ }
}
#endif