From e4859569295d3fd108b5ab91ae12b66bd12fa186 Mon Sep 17 00:00:00 2001
From: Joel Rosdahl <joel@rosdahl.net>
Date: Sat, 27 Feb 2010 10:56:22 +0100
Subject: [PATCH] Improve detection of program name being MYNAME

---
 ccache.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/ccache.c b/ccache.c
index 839dc0921..c3d31aea4 100644
--- a/ccache.c
+++ b/ccache.c
@@ -1779,6 +1779,7 @@ static void setup_uncached_err(void)
 int main(int argc, char *argv[])
 {
 	char *p;
+	char *program_name;
 
 	current_working_dir = get_cwd();
 	cache_dir = getenv("CCACHE_DIR");
@@ -1790,8 +1791,8 @@ int main(int argc, char *argv[])
 	}
 
 	/* check if we are being invoked as "ccache" */
-	if (strlen(argv[0]) >= strlen(MYNAME) &&
-	    strcmp(argv[0] + strlen(argv[0]) - strlen(MYNAME), MYNAME) == 0) {
+	program_name = str_basename(argv[0]);
+	if (strcmp(program_name, MYNAME) == 0) {
 		if (argc < 2) {
 			fputs(USAGE_TEXT, stderr);
 			exit(1);
@@ -1802,6 +1803,7 @@ int main(int argc, char *argv[])
 			return ccache_main(argc, argv);
 		}
 	}
+	free(program_name);
 
 	check_cache_dir();
 
-- 
2.47.3