mingw-w64-headers/include/langinfo.h - mingw-w64 - Git at Google

 #ifndef _LANGINFO_H
 #define _LANGINFO_H

 #include <nl_types.h>

 char *nl_langinfo(nl_item);

 #endif
	#ifndef _LANGINFO_H
	#define _LANGINFO_H

	#include <nl_types.h>

	char *nl_langinfo(nl_item);

	#endif