X-Git-Url: https://diplodocus.org/git/nmh/blobdiff_plain/fbbc1d8078ecaf1cbfbade84cf54913ad4409220..9acf7ea2c5f9e428d3791f224b54f2e757ace36b:/test/getcwidth.c

diff --git a/test/getcwidth.c b/test/getcwidth.c
index 9e1ba65c..c1717e17 100644
--- a/test/getcwidth.c
+++ b/test/getcwidth.c
@@ -30,13 +30,18 @@ int
 main(int argc, char *argv[])
 {
 #ifndef MULTIBYTE_SUPPORT
+	(void) argc;
+	(void) argv;
 	fprintf(stderr, "Nmh was not configured with multibyte support\n");
 	exit(1);
 #else /* MULTIBYTE_SUPPORT */
 	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]);
@@ -109,7 +114,7 @@ getwidth(const char *string)
 	 * at a time.
 	 */
 
-	mbtowc(NULL, NULL, 0);
+	if (mbtowc(NULL, NULL, 0)) {}
 
 	while (charleft > 0) {
 		int clen;
@@ -159,5 +164,5 @@ dumpwidth(void)
 	if (width == lastwidth)
 		printf("%04lX - %04lX = %d\n", (unsigned long int) low,
 		       (unsigned long int) (wc), width);
-}
 #endif /* MULTIBYTE_SUPPORT */
+}