shithub: scc

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[driver] update usage, exit when exclusive flags given

--- a/driver/posix/scc.c

+++ b/driver/posix/scc.c

@@ -194,7 +194,7 @@

 static void

 usage(void)

 {

-	die("usage: %s [-m arch] input ...");

+	die("usage: %s [-E|-kS] [-m arch] input ...", argv0);

 }

 int

@@ -227,6 +227,9 @@

 	default:

 		usage();

 	} ARGEND

+

+	if (Eflag && (Sflag || kflag))

+		usage();

 	if (!argc)

 		die("scc: fatal error: no input files");