X-Git-Url: https://diplodocus.org/git/nmh/blobdiff_plain/a12d28cdfd69f447a8cf5815ce5a84284788b86e..52391b538640f320acb25a66b673042c51567f61:/test/getcwidth.c

diff --git a/test/getcwidth.c b/test/getcwidth.c
index 4a8122b6..2c4755b1 100644
--- a/test/getcwidth.c
+++ b/test/getcwidth.c
@@ -38,7 +38,10 @@ main(int argc, char *argv[])
 	wchar_t c;
 	int i;
 
-	setlocale(LC_ALL, "");
+	if (! setlocale(LC_ALL, "")) {
+		fprintf(stderr, "setlocale failed, check your LC_ALL, "
+		    "LC_CTYPE, and LANG environment variables\n");
+	}
 
 	if (argc < 2)
 		usage(argv[0]);