[committed] Add ultrix to file mmap blacklist

[John David Anglin]

Mmap from a file fails on vax-ultrix, the only remaining ultrix port.  The
old version of configure used to detect this but this fact was lost when
the blacklist for file mmap was introduced.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)

2003-10-31  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

	* aclocal.m4: Blacklist ultrix* for mmap file.
	* configure: Rebuilt.

Index: aclocal.m4
===================================================================
RCS file: /cvs/gcc/gcc/gcc/aclocal.m4,v
retrieving revision 1.80
diff -u -3 -p -r1.80 aclocal.m4
--- aclocal.m4	14 Oct 2003 21:21:07 -0000	1.80
+++ aclocal.m4	1 Nov 2003 02:24:47 -0000
@@ -424,7 +424,7 @@ else
    # read() to the same fd.  The only system known to have a problem here
    # is VMS, where text files have record structure.
    case "$host_os" in
-     vms*) 
+     vms* | ultrix*) 
         gcc_cv_func_mmap_file=no ;;
      *)
         gcc_cv_func_mmap_file=yes;;