1 files changed, 4 insertions, 0 deletions
diff --git a/lex.c b/lex.c
index 6923b20..28343a6 100644
--- a/lex.c
+++ b/lex.c
@@ -334,6 +334,10 @@ int main(int argc, char *argv[])
 			break;
 			
 		default:
+			if (optopt == 'c') {
+				fprintf(stderr, "ignoring obsolete option -c\n");
+				break;
+			}
 			return 1;
 		}
 	}