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Diffstat (limited to 'boost/spirit/home/classic/utility.hpp')
| -rw-r--r-- | boost/spirit/home/classic/utility.hpp | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/boost/spirit/home/classic/utility.hpp b/boost/spirit/home/classic/utility.hpp index 8eec51a7f7..d04c51dc60 100644 --- a/boost/spirit/home/classic/utility.hpp +++ b/boost/spirit/home/classic/utility.hpp @@ -34,7 +34,9 @@ // Utility.Support #include <boost/spirit/home/classic/utility/flush_multi_pass.hpp> +#ifdef BOOST_SPIRIT_THREADSAFE #include <boost/spirit/home/classic/utility/scoped_lock.hpp> +#endif #endif // !defined(BOOST_SPIRIT_UTILITY_MAIN_HPP) |