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[gnulib.git] / tests / test-argp.c

diff --git a/tests/test-argp.c b/tests/test-argp.c
index 7af1af8..85de5f4 100644 (file)
--- a/tests/test-argp.c
+++ b/tests/test-argp.c
@@ -348,7 +348,7 @@ test6 (struct argp *argp)
 
 void
 test_optional (struct argp *argp, int argc, char **argv,
-              struct test_args *args, char *val, char *a)
+              struct test_args *args, const char *val, const char *a)
 {
   int index;
   if (argp_parse (argp, argc, argv, 0, &index, args))