namespace folly {
namespace detail {
-#if _POSIX_C_SOURCE >= 200112L || _XOPEN_SOURCE >= 600 || \
- (defined(__ANDROID__) && (__ANDROID_API__ > 15))
+#if _POSIX_C_SOURCE >= 200112L || _XOPEN_SOURCE >= 600 || \
+ (defined(__ANDROID__) && (__ANDROID_API__ > 15)) || \
+ (defined(__APPLE__) && (__MAC_OS_X_VERSION_MIN_REQUIRED >= __MAC_10_6 || \
+ __IPHONE_OS_VERSION_MIN_REQUIRED >= __IPHONE_3_0))
#include <errno.h>
// Use posix_memalign, but mimic the behaviour of memalign