X-Git-Url: https://code.delx.au/gnu-emacs/blobdiff_plain/114f9c96795aff3b51b9060d7c9c1b77debcc99a..986fb647cc1df1edeeaa2c0e7cb34c100eb9efb9:/src/filelock.c

diff --git a/src/filelock.c b/src/filelock.c
index 3c92d49506..b11338c58b 100644
--- a/src/filelock.c
+++ b/src/filelock.c
@@ -47,9 +47,6 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 #endif /* __FreeBSD__ */
 
 #include <errno.h>
-#ifndef errno
-extern int errno;
-#endif
 
 #include "lisp.h"
 #include "buffer.h"
@@ -63,7 +60,9 @@ Lisp_Object Vtemporary_file_directory;
 
 #ifdef CLASH_DETECTION
 
+#ifdef HAVE_UTMP_H
 #include <utmp.h>
+#endif
 
 #if !defined (S_ISLNK) && defined (S_IFLNK)
 #define S_ISLNK(m) (((m) & S_IFMT) == S_IFLNK)