locale.cpp: Tweak for Win32.

src/locale.cpp

@@ -18,7 +18,20 @@
 #include "cstring"
 #include "cwctype"
 #include "__sso_allocator"
+#ifdef __MINGW32__
+#define iswctype_l _iswctype_l
+#define strcoll_l _strcoll_l
+#define strftime_l _strftime_l
+#define strxfrm_l _strxfrm_l
+#define tolower_l _tolower_l
+#define toupper_l _toupper_l
+#define towlower_l _towlower_l
+#define towupper_l _towupper_l
+#define wcscoll_l _wcscoll_l
+#define wcsxfrm_l _wcsxfrm_l
+#else
 #include <langinfo.h>
+#endif
 #include <stdlib.h>
 
 _LIBCPP_BEGIN_NAMESPACE_STD