Fix some -Wundef issues.
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@228266 91177308-0d34-0410-b5e6-96231b3b80d8
Change-Id: Ib53cc3c6d89254376a34d795f6bf34b32f7c1577
(cherry picked from commit 3727be521a9b4c5fcf95c53adc8abe85f7105188)
diff --git a/include/__refstring b/include/__refstring
index 6866bf1..61ccc75 100644
--- a/include/__refstring
+++ b/include/__refstring
@@ -13,7 +13,7 @@
#include <__config>
#include <cstddef>
#include <cstring>
-#if __APPLE__
+#ifdef __APPLE__
#include <dlfcn.h>
#include <mach-o/dyld.h>
#endif
@@ -49,7 +49,7 @@
return data + sizeof(*rep);
}
-#if __APPLE__
+#ifdef __APPLE__
static
const char*
compute_gcc_empty_string_storage() _NOEXCEPT