From 8d121763f2aea8028034b78353250f16448bed9e Mon Sep 17 00:00:00 2001
From: Joel Rosdahl <joel@rosdahl.net>
Date: Wed, 9 Dec 2009 20:08:06 +0100
Subject: [PATCH] Handle missing dependency file in cache correctly

---
 ccache.c |  2 --
 test.sh  | 26 ++++++++++++++++++++++++++
 2 files changed, 26 insertions(+), 2 deletions(-)

diff --git a/ccache.c b/ccache.c
index d746ce3..6631ee1 100644
--- a/ccache.c
+++ b/ccache.c
@@ -814,8 +814,6 @@ static void from_cache(enum fromcache_call_mode mode, int put_object_in_manifest
 	if (produce_dep_file && stat(dep_file, &st) != 0) {
 		cc_log("Dependency file missing in cache\n");
 		close(fd_stderr);
-		unlink(stderr_file);
-		unlink(object_path);
 		free(stderr_file);
 		return;
 	}
diff --git a/test.sh b/test.sh
index 1c53917..35f1324 100755
--- a/test.sh
+++ b/test.sh
@@ -480,6 +480,32 @@ EOF
     checkstat 'cache miss' 1
     checkfile other.d "test.o: test.c test1.h test3.h test2.h"
 
+    ##################################################################
+    # Check that a missing .d file in the cache is handled correctly.
+    testname="missing dependency file"
+    $CCACHE -z >/dev/null
+    $CCACHE -C >/dev/null
+
+    $CCACHE $COMPILER -c -MD test.c
+    checkstat 'cache hit (direct)' 0
+    checkstat 'cache hit (preprocessed)' 0
+    checkstat 'cache miss' 1
+    checkfile other.d "test.o: test.c test1.h test3.h test2.h"
+
+    $CCACHE $COMPILER -c -MD test.c
+    checkstat 'cache hit (direct)' 1
+    checkstat 'cache hit (preprocessed)' 0
+    checkstat 'cache miss' 1
+    checkfile other.d "test.o: test.c test1.h test3.h test2.h"
+
+    find $CCACHE_DIR -name '*.d' -exec rm -f '{}' \;
+
+    $CCACHE $COMPILER -c -MD test.c
+    checkstat 'cache hit (direct)' 1
+    checkstat 'cache hit (preprocessed)' 1
+    checkstat 'cache miss' 1
+    checkfile other.d "test.o: test.c test1.h test3.h test2.h"
+
     ##################################################################
     # Reset things.
     CCACHE_NODIRECT=1