fix MAP_ANONYMOUS for old Mac OS X

boostorg · Jul 9, 2014 · 1005688 · 1005688
1 parent 6def88c
commit 1005688
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/include/boost/coroutine/posix/protected_stack_allocator.hpp b/include/boost/coroutine/posix/protected_stack_allocator.hpp
@@ -53,7 +53,11 @@ struct basic_protected_stack_allocator
         BOOST_ASSERT( size_ <= size);
 
         // conform to POSIX.4 (POSIX.1b-1993, _POSIX_C_SOURCE=199309L)
+#if defined(MAP_ANON)
+        void * limit = ::mmap( 0, size_, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANON, -1, 0);
+#else
         void * limit = ::mmap( 0, size_, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+#endif
         if ( MAP_FAILED == limit) throw std::bad_alloc();
 
         // conforming to POSIX.1-2001