diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 20e8580aef..74cf44ce98 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,10 @@
+Mon Nov 20 11:12:34 1995  Fred Fish  <fnf@cygnus.com>
+
+	* objfiles.c (allocate_objfile): Change warning message about mapped
+	symbol tables so that it is obvious that they are not supported on
+	this particular machine rather than implying they are not supported
+	at all in this version of gdb.
+
 Sun Nov 19 05:20:53 1995  Peter Schauer  (pes@regent.e-technik.tu-muenchen.de)
 
 	* irix5-nat.c, osfsolib.c (solib_address):  Return the name of the
diff --git a/gdb/objfiles.c b/gdb/objfiles.c
index d652215099..6688e2d14c 100644
--- a/gdb/objfiles.c
+++ b/gdb/objfiles.c
@@ -208,7 +208,7 @@ allocate_objfile (abfd, mapped)
 
   if (mapped)
     {
-      warning ("this version of gdb does not support mapped symbol tables.");
+      warning ("mapped symbol tables are not supported on this machine; missing or broken mmap().");
 
       /* Turn off the global flag so we don't try to do mapped symbol tables
 	 any more, which shuts up gdb unless the user specifically gives the