2 files changed, 7 insertions, 0 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index e80ec2afb28..85ddee278ba 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,5 +1,8 @@
 2000-11-20  Gerd Moellmann  <gerd@gnu.org>
 
+        * buffer.c (MAP_FAILED): Define it as `((void *) -1)' if it's
+        not defined in mman.h.
+
         * xterm.c (scroll_bar_windows, scroll_bar_windows_size): New
         variables.
         (x_send_scroll_bar_event): Store the window in scroll_bar_windows
diff --git a/src/buffer.c b/src/buffer.c
index 1e31c93ea5c..09732cc9bc9 100644
--- a/src/buffer.c
+++ b/src/buffer.c
@@ -4078,6 +4078,10 @@ buffer_slot_type_mismatch (offset)
 #endif
 #endif
 
+#ifndef MAP_FAILED
+#define MAP_FAILED ((void *) -1)
+#endif
+
 #include <stdio.h>
 #include <errno.h>