inline strcmp(s, "-") [actually macro-ize it for now - gcc is too stupid]
diff --git a/archival/bunzip2.c b/archival/bunzip2.c
index 757001f..a6cd176 100644
--- a/archival/bunzip2.c
+++ b/archival/bunzip2.c
@@ -23,7 +23,7 @@
 
 	/* Set input filename and number */
 	filename = argv[optind];
-	if ((filename) && (filename[0] != '-') && (filename[1] != '\0')) {
+	if (filename && NOT_LONE_DASH(filename)) {
 		/* Open input file */
 		src_fd = xopen(filename, O_RDONLY);
 	} else {