Fix MS-Windows build broken by make-fingerprint changes

* lib-src/make-fingerprint.c (fseeko) [WNDOWSNT]: Define to
fseeko64 for non-MinGW64 MinGW.

* lib-src/ntlib.c (stat): Fix calculation of file size.
(fstat): New function, a subset of src/w32.c:fstat.  This is
needed because make-fingerprint.c now calls 'fstat', and the
MS version will fail to produce reliable results because
nt/inc/sys/stat.h redefines 'struct stat'.

1 files changed, 5 insertions, 0 deletions

diff --git a/lib-src/make-fingerprint.c b/lib-src/make-fingerprint.c
index dc21fc2aa9a..535e5751320 100644
--- a/lib-src/make-fingerprint.c
+++ b/lib-src/make-fingerprint.c
@@ -50,6 +50,11 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
    is really just insurance.  */
 #undef fopen
 #include <direct.h>
+
+#ifndef MINGW_W64
+# undef fseeko
+# define fseeko fseeko64
+#endif
 #endif /* WINDOWSNT */
 
 int