Port renameat_noreplace to openSUSE 12.3

Problem reported by M. Nomiya in:
http://lists.gnu.org/archive/html/emacs-devel/2017-09/msg00363.html
* src/sysdep.c (renameat_noreplace):
Call renameat2 only if CYGWIN.

diff --git a/src/sysdep.c b/src/sysdep.c
index 318d4eb380cb563b73c278128495e82d201d0176..1e6e0d011ba7d4eec8a8336997d142e79cece21d 100644 (file)
--- a/src/sysdep.c
+++ b/src/sysdep.c
@@ -2689,7 +2689,7 @@ renameat_noreplace (int srcfd, char const *src, int dstfd, char const *dst)
 {
 #if defined SYS_renameat2 && defined RENAME_NOREPLACE
   return syscall (SYS_renameat2, srcfd, src, dstfd, dst, RENAME_NOREPLACE);
-#elif defined RENAME_NOREPLACE /* Cygwin >= 2.9.0. */
+#elif defined CYGWIN && defined RENAME_NOREPLACE
   return renameat2 (srcfd, src, dstfd, dst, RENAME_NOREPLACE);
 #elif defined RENAME_EXCL
   return renameatx_np (srcfd, src, dstfd, dst, RENAME_EXCL);