Include sys/syscall.h to SysMembarrier

Summary: It calls syscall, but does not include the header.

Reviewed By: knekritz

Differential Revision: D3586636

fbshipit-source-id: 2ef05fc4b88f236a84b79afa708e98fe21529685

diff --git a/folly/portability/SysMembarrier.cpp b/folly/portability/SysMembarrier.cpp
index 7801000fad2a60f70fbc76d92229ec0b716bbac8..cc4b43ac827279dbf7f30a389c8f5c08b33ed5ff 100644 (file)
--- a/folly/portability/SysMembarrier.cpp
+++ b/folly/portability/SysMembarrier.cpp
@@ -19,6 +19,7 @@
 #include <mutex>
 
 #include <folly/Portability.h>
+#include <folly/portability/SysSyscall.h>
 #include <folly/portability/Unistd.h>
 
 #if !defined(__NR_membarrier) && FOLLY_X64 && !FOLLY_MOBILE && \