There is no longer an in-tree version of DejaGnu in src/dejagnu.  This
patch just keeps the gdb Makefile up to date.  Okay for mainline?

2005-06-30  Ben Elliston  <bje@gnu.org>

        * Makefile.in (RUNTEST): Set to runtest.

Index: Makefile.in
===================================================================
RCS file: /cvs/src/src/gdb/Makefile.in,v
retrieving revision 1.738
diff -u -p -r1.738 Makefile.in
--- Makefile.in 25 Jun 2005 11:54:29 -0000      1.738
+++ Makefile.in 29 Jun 2005 20:36:13 -0000
@@ -389,10 +389,7 @@ LINTFLAGS= $(GDB_CFLAGS) $(OPCODES_CFLAG
        $(BFD_CFLAGS) $(INCLUDE_CFLAGS) \
        $(INTL_CFLAGS)
 
-RUNTEST = `if [ -f $${rootsrc}/../dejagnu/runtest ] ; then \
-               echo $${rootsrc}/../dejagnu/runtest ; else echo runtest; \
-          fi`
-
+RUNTEST = runtest
 RUNTESTFLAGS=
 
 # This is ser-unix.o for any system which supports a v7/BSD/SYSV/POSIX