common/io_priority: include <errno.h> on osx

Signed-off-by: Kefu Chai <kchai@redhat.com>

diff --git a/src/common/io_priority.cc b/src/common/io_priority.cc
index c635555ad682dc6534bafd241ba6939fbc67e665..3e9712508c992b9a51125e06c64d69db30a6c529 100644 (file)
--- a/src/common/io_priority.cc
+++ b/src/common/io_priority.cc
@@ -13,7 +13,7 @@
  */
 
 #include <unistd.h>
-#if defined(__FreeBSD__)
+#if defined(__FreeBSD__) || defined(__APPLE__)
 #include <errno.h>
 #endif
 #ifdef __linux__