* dir.cc (readdir_workdir): Only fill out d_ino when linked into older app.

* include/cygwin/version.h: Bump api minor number to 147, reflecting
obsolescence of d_ino.
(CYGWIN_VERSION_USER_API_VERSION_COMBINED): New convenience macro.
(CYGWIN_VERSION_CHECK_FOR_NEEDS_D_INO): New convenience macro.

winsup/cygwin/include/sys/dirent.h

@@ -20,7 +20,7 @@
 struct dirent
 {
   long d_version;	/* Used since Cygwin 1.3.3. */
-  __ino64_t d_ino;	/* still junk but with more bits */
+  __ino64_t __deprecated_d_ino;	/* still junk but with more bits */
   long d_fd;		/* File descriptor of open directory.
 			   Used since Cygwin 1.3.3. */
   unsigned __ino32;