Mercurial > hg > xemacs-beta

diff src/dumper.c @ 456:e7ef97881643 r21-2-43
Import from CVS: tag r21-2-43
author: cvs
date: Mon, 13 Aug 2007 11:41:24 +0200
parents: 3d3049ae1304
children: c33ae14dd6d0
--- a/src/dumper.c	Mon Aug 13 11:40:56 2007 +0200
+++ b/src/dumper.c	Mon Aug 13 11:41:24 2007 +0200
@@ -1249,6 +1249,11 @@
   lseek (fd, 0, SEEK_SET);
 
 #ifdef HAVE_MMAP
+/* Unix 98 requires that sys/mman.h define MAP_FAILED,
+   but many earlier implementations don't. */
+# ifndef MAP_FAILED
+#  define MAP_FAILED ((void *) -1L)
+# endif
   pdump_start = (char *) mmap (0, pdump_length, PROT_READ|PROT_WRITE, MAP_PRIVATE, fd, 0);
   if (pdump_start != (char *) MAP_FAILED)
     {
@@ -1256,7 +1261,7 @@
       close (fd);
       return 1;
     }
-#endif
+#endif /* HAVE_MMAP */
 
   pdump_mallocadr = xmalloc (pdump_length+255);
   pdump_free = pdump_file_free;