From ff13256a94285d41db8b9370ff29a6c211b6bf99 Mon Sep 17 00:00:00 2001
From: Joel Rosdahl <joel@rosdahl.net>
Date: Sat, 16 Jul 2011 15:31:05 +0200
Subject: [PATCH] config: Allow empty string (meaning "disabled") in
 verify_absolute_path

---
 conf.c           | 5 ++++-
 test/test_conf.c | 3 +++
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/conf.c b/conf.c
index 6bc8a85ed..0ad48b1cb 100644
--- a/conf.c
+++ b/conf.c
@@ -152,7 +152,10 @@ verify_absolute_path(void *value, char **errmsg)
 {
 	char **path = (char **)value;
 	assert(*path);
-	if (is_absolute_path(*path)) {
+	if (str_eq(*path, "")) {
+		/* The empty string means "disable" in this case. */
+		return true;
+	} else if (is_absolute_path(*path)) {
 		return true;
 	} else {
 		*errmsg = format("not an absolute path: \"%s\"", *path);
diff --git a/test/test_conf.c b/test/test_conf.c
index 6ca5629b2..330e237c2 100644
--- a/test/test_conf.c
+++ b/test/test_conf.c
@@ -262,6 +262,9 @@ TEST(verify_absolute_base_dir)
 	CHECK_STR_EQ_FREE2("ccache.conf:1: not an absolute path: \"relative/path\"",
 	                   errmsg);
 
+	create_file("ccache.conf", "base_dir =");
+	CHECK(conf_read(conf, "ccache.conf", &errmsg));
+
 	conf_free(conf);
 }
 
-- 
2.47.3