From bccd81cefce332b33f5ddbf968c18f68a28888d2 Mon Sep 17 00:00:00 2001
From: Andrew Tridgell <tridge@samba.org>
Date: Thu, 25 Sep 2003 07:49:50 +0200
Subject: [PATCH] make sure we hash the cpp extension to ensure we don't
 mistake a .i for a .ii

---
 ccache.c |  9 +++++++--
 test.sh  | 11 ++++++++++-
 2 files changed, 17 insertions(+), 3 deletions(-)

diff --git a/ccache.c b/ccache.c
index 23d572a20..c4d3f695b 100644
--- a/ccache.c
+++ b/ccache.c
@@ -273,6 +273,10 @@ static void find_hash(ARGS *args)
 		hash_string(input_file);
 	}
 
+	/* we have to hash the extension, as a .i file isn't treated the same
+	   by the compiler as a .ii file */
+	hash_string(i_extension);
+
 	/* first the arguments */
 	for (i=1;i<args->argc;i++) {
 		/* some arguments don't contribute to the hash. The
@@ -353,8 +357,9 @@ static void find_hash(ARGS *args)
 		status = execute(args->argv, path_stdout, path_stderr);
 		args_pop(args, 2);
 	} else {
-		/* we are compiling a .i or .ii file - that means we can skip the cpp stage
-		   and directly form the correct i_tmpfile */
+		/* we are compiling a .i or .ii file - that means we
+		   can skip the cpp stage and directly form the
+		   correct i_tmpfile */
 		path_stdout = input_file;
 		if (create_empty_file(path_stderr) != 0) {
 			stats_update(STATS_ERROR);
diff --git a/test.sh b/test.sh
index aca52d4e8..4ff1e3e96 100755
--- a/test.sh
+++ b/test.sh
@@ -220,8 +220,17 @@ basetests() {
     $CCACHE_COMPILE -c test1.i
     checkstat 'cache hit' 10
     checkstat 'cache miss' 38
-    
 
+    testname="direct .ii file"
+    mv test1.i test1.ii
+    $CCACHE_COMPILE -c test1.ii
+    checkstat 'cache hit' 10
+    checkstat 'cache miss' 39
+
+    $CCACHE_COMPILE -c test1.ii
+    checkstat 'cache hit' 11
+    checkstat 'cache miss' 39
+    
     testname="zero-stats"
     $CCACHE -z > /dev/null
     checkstat 'cache hit' 0
-- 
2.47.2