1 // Copyright 2012 Google Inc. All Rights Reserved.
2 //
3 // Licensed under the Apache License, Version 2.0 (the "License");
4 // you may not use this file except in compliance with the License.
5 // You may obtain a copy of the License at
6 //
7 //     http://www.apache.org/licenses/LICENSE-2.0
8 //
9 // Unless required by applicable law or agreed to in writing, software
10 // distributed under the License is distributed on an "AS IS" BASIS,
11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 // See the License for the specific language governing permissions and
13 // limitations under the License.
14 
15 #ifndef NINJA_EXPLAIN_H_
16 #define NINJA_EXPLAIN_H_
17 
18 #include <stdio.h>
19 
20 #define EXPLAIN(fmt, ...) {                                             \
21   if (g_explaining)                                                     \
22     fprintf(stderr, "ninja explain: " fmt "\n", __VA_ARGS__);           \
23 }
24 
25 extern bool g_explaining;
26 
27 extern bool g_keep_depfile;
28 
29 extern bool g_keep_rsp;
30 
31 extern bool g_experimental_statcache;
32 
33 #endif // NINJA_EXPLAIN_H_
34