Print which argument(s) was unknown before giving usage message

Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>

1 files changed, 9 insertions, 1 deletions

diff --git a/xfd.c b/xfd.c
index 5eae374..8108d19 100644
--- a/xfd.c
+++ b/xfd.c
@@ -194,6 +194,15 @@ main(int argc, char *argv[])
 				xfd_options, XtNumber(xfd_options),
 				&argc, argv, NULL, NULL, 0);
 
+    if (argc != 1) {
+	fputs("Unknown argument(s):", stderr);
+	for (int n = 1; n < argc; n++) {
+	    fprintf(stderr, " %s", argv[n]);
+	}
+	fputs("\n\n", stderr);
+	usage ();
+    }
+    
 #ifdef USE_GETTEXT
     {
 	const char *domaindir;
@@ -214,7 +223,6 @@ main(int argc, char *argv[])
     Resources[3].default_addr = gettext(DEF_START_FORMAT);
     Resources[4].default_addr = gettext(DEF_NOCHAR_FORMAT);
 
-    if (argc != 1) usage ();
     XtAppAddActions (xtcontext, xfd_actions, XtNumber (xfd_actions));
     XtOverrideTranslations
         (toplevel, XtParseTranslationTable ("<Message>WM_PROTOCOLS: Quit()"));