From: Joel Rosdahl <joel@rosdahl.net>
Date: Mon, 3 Jan 2011 20:41:36 +0000 (+0100)
Subject: Cope with file systems (e.g. FAT) that don't handle symlinks
X-Git-Tag: v3.1.4~1
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=aef5f35d2c314273e926983498a6d76667d81f54;p=thirdparty%2Fccache.git

Cope with file systems (e.g. FAT) that don't handle symlinks
---

diff --git a/lockfile.c b/lockfile.c
index ef48e19a0..1e1d0afe6 100644
--- a/lockfile.c
+++ b/lockfile.c
@@ -99,6 +99,14 @@ lockfile_acquire(const char *path, unsigned staleness_limit)
 			goto out;
 		}
 		cc_log("lockfile_acquire: symlink %s: %s", lockfile, strerror(errno));
+		if (errno == EPERM) {
+			/*
+			 * The file system does not support symbolic links. We have no choice but
+			 * to grant the lock anyway.
+			 */
+			acquired = true;
+			goto out;
+		}
 		if (errno != EEXIST) {
 			/* Directory doesn't exist or isn't writable? */
 			goto out;