(Fwrite_region) [DOS_NT]: Remove O_TRUNC from open

flags argument to emacs_open; it seems to conflict with O_EXCL.

2 files changed, 7 insertions, 2 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index 14e557e3827..68964536ae7 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,8 @@
+2001-03-09  Gerd Moellmann  <gerd@gnu.org>
+
+        * fileio.c (Fwrite_region) [DOS_NT]: Remove O_TRUNC from open
+        flags argument to emacs_open; it seems to conflict with O_EXCL.
+
 2001-03-09  Kenichi Handa  <handa@etl.go.jp>
 
         * composite.h (struct composition): Change types of members;
diff --git a/src/fileio.c b/src/fileio.c
index dc087873988..fb40e549710 100644
--- a/src/fileio.c
+++ b/src/fileio.c
@@ -4684,8 +4684,8 @@ This does code conversion according to the value of\n\
 #else /* not VMS */
 #ifdef DOS_NT
   desc = emacs_open (fn,
-                     O_WRONLY | O_TRUNC | O_CREAT | buffer_file_type
-                     | (mustbenew == Qexcl ? O_EXCL : 0),
+                     O_WRONLY | O_CREAT | buffer_file_type
+                     | (EQ (mustbenew, Qexcl) ? O_EXCL : O_TRUNC),
                      S_IREAD | S_IWRITE);
 #else  /* not DOS_NT */
   desc = emacs_open (fn, O_WRONLY | O_TRUNC | O_CREAT