--- __locale	2017-10-27 01:51:25.516580511 -0500
+++ __locale_new	2017-10-27 02:21:41.157925656 -0500
@@ -36,7 +36,7 @@
 # include <support/newlib/xlocale.h>
 #elif (defined(__GLIBC__) || defined(__APPLE__)      || defined(__FreeBSD__) \
     || defined(__EMSCRIPTEN__) || defined(__IBMCPP__))
-# include <xlocale.h>
+# include <locale.h>
 #elif defined(_LIBCPP_HAS_MUSL_LIBC)
 # include <support/musl/xlocale.h>
 #endif // __GLIBC__ || __APPLE__ || __FreeBSD__ || __sun__ || __EMSCRIPTEN__ || __IBMCPP__