3 files changed, 41 insertions, 0 deletions
diff --git a/winsup/mingw/include/io.h b/winsup/mingw/include/io.h
index 265f42bc5..66d59b5a8 100644
--- a/winsup/mingw/include/io.h
+++ b/winsup/mingw/include/io.h
@@ -144,6 +144,14 @@ _CRTIMP __int64 __cdecl _telli64(int);
 _CRTIMP intptr_t __cdecl _findfirst64(const char*, struct __finddata64_t*);
 _CRTIMP intptr_t __cdecl _findnext64(intptr_t, struct __finddata64_t*); 
 #endif /* __MSVCRT_VERSION__ >= 0x0601 */
+
+#ifndef __NO_MINGW_LFS
+__CRT_INLINE off64_t lseek64 (int fd, off64_t offset, int whence) 
+{
+  return _lseeki64(fd, (__int64) offset, whence);
+}
+#endif
+
 #endif /* __MSVCRT__ */
 
 #ifndef _NO_OLDNAMES
diff --git a/winsup/mingw/include/stdio.h b/winsup/mingw/include/stdio.h
index 63ff1d6ca..9b53fbfb1 100644
--- a/winsup/mingw/include/stdio.h
+++ b/winsup/mingw/include/stdio.h
@@ -392,6 +392,30 @@ _CRTIMP int __cdecl	fileno (FILE*);
 #define fileno(__F) ((__F)->_file)
 #endif
 
+#if defined (__MSVCRT__) && !defined (__NO_MINGW_LFS)
+#include <sys/types.h>
+__CRT_INLINE FILE* __cdecl fopen64 (const char* filename, const char* mode)
+{
+  return fopen (filename, mode); 
+}
+
+int __cdecl fseeko64 (FILE*, off64_t, int);
+
+#ifdef __USE_MINGW_FSEEK
+int __cdecl __mingw_fseeko64 (FILE *, off64_t, int);
+#define fseeko64(fp, offset, whence)  __mingw_fseeko64(fp, offset, whence)
+#endif
+
+__CRT_INLINE off64_t __cdecl ftello64 (FILE * stream)
+{
+  fpos_t pos;
+  if (fgetpos(stream, &pos))
+    return  -1LL;
+  else
+   return ((off64_t) pos);
+}
+#endif /* __NO_MINGW_LFS */
+
 #endif	/* Not __STRICT_ANSI__ */
 
 /* Wide  versions */
diff --git a/winsup/mingw/include/sys/types.h b/winsup/mingw/include/sys/types.h
index 333013399..2bc04e755 100644
--- a/winsup/mingw/include/sys/types.h
+++ b/winsup/mingw/include/sys/types.h
@@ -105,6 +105,15 @@ typedef _ssize_t ssize_t;
 #endif
 #endif /* Not _SSIZE_T_ */ 
 
+#ifndef _FPOS64_T_
+#define _FPOS64_T_
+typedef long long fpos64_t;
+#endif
+
+#ifndef _OFF64_T_
+#define _OFF64_T_
+typedef long long off64_t;
+#endif
 
 #endif	/* Not RC_INVOKED */