From: Paul Eggert <eggert@cs.ucla.edu>
Date: Sat, 5 Aug 2017 05:34:45 +0000 (-0700)
Subject: Port recent rename changes to Ubuntu 14.04
X-Git-Tag: emacs-26.0.90~517^2~22
X-Git-Url: http://git.eshelyaron.com/gitweb/?a=commitdiff_plain;h=0a24f47f0eeba688f92043ef8733e0f7d9836c18;p=emacs.git

Port recent rename changes to Ubuntu 14.04

* src/sysdep.c (renameat_noreplace) [!RENAME_NOREPLACE]:
Don’t use syscall.  Problem reported by Tino Calancha (Bug#27946#10).
---

diff --git a/src/sysdep.c b/src/sysdep.c
index 22446b25d16..9eb733221e4 100644
--- a/src/sysdep.c
+++ b/src/sysdep.c
@@ -2691,7 +2691,7 @@ set_file_times (int fd, const char *filename,
 int
 renameat_noreplace (int srcfd, char const *src, int dstfd, char const *dst)
 {
-#ifdef SYS_renameat2
+#if defined SYS_renameat2 && defined RENAME_NOREPLACE
   return syscall (SYS_renameat2, srcfd, src, dstfd, dst, RENAME_NOREPLACE);
 #else
   errno = ENOSYS;