configure.in: Build .gdbinit for top level build dir here.

	* configure.in: Build .gdbinit for top level build dir here.
	(AC_OUTPUT): Pass oldstyle_subdirs to configure.lang.

From-SVN: r14630

gcc/configure.in

@@ -3009,6 +3009,24 @@ do
 	echo "lang.$t: $x" >> Make-hooks
 done
 
+# If we're not building in srcdir, create .gdbinit.
+
+if [[ ! -f Makefile.in ]]; then
+	echo "dir ." > .gdbinit
+	echo "dir ${srcdir}" >> .gdbinit
+	if [[ x$gdb_needs_out_file_path = xyes ]]
+	then
+		echo "dir ${srcdir}/config/"`dirname ${out_file}` >> .gdbinit
+	fi
+	if [[ "x$subdirs" != x ]]; then
+		for s in $subdirs
+		do
+			echo "dir ${srcdir}/$s" >> .gdbinit
+		done
+	fi
+	echo "source ${srcdir}/.gdbinit" >> .gdbinit
+fi
+
 # Process the language and host/target makefile fragments.
 ${CONFIG_SHELL-/bin/sh} $srcdir/configure.frag $srcdir "$subdirs" "$dep_host_xmake_file" "$dep_tmake_file"
 
@@ -3107,6 +3125,7 @@ target='${target}'
 target_alias='${target_alias}'
 srcdir='${srcdir}'
 subdirs='${subdirs}'
+oldstyle_subdirs='${oldstyle_subdirs}'
 symbolic_link='${symbolic_link}'
 program_transform_set='${program_transform_set}'
 program_transform_name='${program_transform_name}'