LFS for wingrass: another old name. use typedef instead of define?

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@43137 15284696-431f-4ddb-bdfa-cd5b030d7da7

include/config.h.in

@@ -282,6 +282,7 @@
 #define	_NO_OLDNAMES
 /* but... */
 #define pid_t _pid_t
+#define mode_t _mode_t
 /* ...and these old names from fcntl.h: */
 #define O_RDONLY	_O_RDONLY
 #define O_WRONLY	_O_WRONLY