2 * Copyright 2012 Facebook, Inc.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
17 #ifndef FOLLY_PORTABILITY_H_
18 #define FOLLY_PORTABILITY_H_
20 #include "folly-config.h"
22 #ifdef FOLLY_HAVE_SCHED_H
24 #ifndef FOLLY_HAVE_PTHREAD_YIELD
25 #define pthread_yield sched_yield
29 // Define macro wrappers for C++11's "final" and "override" keywords, which
30 // are supported in gcc 4.7 but not gcc 4.6.
32 // TODO(tudorb/agallagher): Autotoolize this.
37 # if __GNUC_PREREQ(4,7)
38 # define FOLLY_FINAL final
39 # define FOLLY_OVERRIDE override
47 #ifndef FOLLY_OVERRIDE
48 # define FOLLY_OVERRIDE
52 #endif // FOLLY_PORTABILITY_H_