Sync config/ from GCC:

--- config/ChangeLog
+++ config/ChangeLog
@@ -19,6 +19,10 @@
 	* tls.m4 (GCC_CHECK_TLS): Also test TLS in a shared library when
 	cross-compiling.

+2009-06-25  Olivier Hainque  <hainque@adacore.com>
+
+	* config/mh-ppc-aix (BOOT_ADAFLAGS): Remove -mminimal-toc.
+
 2009-05-26  Rafael Avila de Espindola  <espindola@google.com>

 	* plugins.m4: New.
@@ -39,6 +43,27 @@
 	"# no Tcl configs found".
 	(SC_LOAD_TKCONFIG): Similarily for TK_BIN_DIR.

+2009-04-09  Jakub Jelinek  <jakub@redhat.com>
+
+	* lead-dot.m4: Change copyright header to refer to version
+	3 of the GNU General Public License and to point readers at the
+	COPYING3 file and the FSF's license web page.
+	* warnings.m4: Likewise.
+
+2009-02-11  Kai Tietz  <kai.tietz@onevision.com>
+
+	* mh-cygwin (LDFLAGS): Add linker option to increase stack limit
+	up to 8MB.
+
+2009-01-23  Jie Zhang  <jie.zhang@analog.com>
+
+	* tls.m4 (GCC_CHECK_EMUTLS): Define.
+
+2008-12-21  Andrew Pinski  <pinskia@gmail.com>
+
+	PR target/38300
+	* unwind_ipinfo.m4: Darwin before 9 does not have _Unwind_GetIPInfo.
+
 2008-11-21  Kai Tietz  <kai.tietz@onevision.com>

 	Fix PR/25502

config/unwind_ipinfo.m4

@@ -22,7 +22,13 @@ AC_DEFUN([GCC_CHECK_UNWIND_GETIPINFO], [
       *) have_unwind_getipinfo=yes ;;
     esac
   else
-     have_unwind_getipinfo=yes
+    # Darwin before version 9 does not have _Unwind_GetIPInfo.
+    changequote(,)
+    case ${target} in
+      *-*-darwin[3-8]|*-*-darwin[3-8].*) have_unwind_getipinfo=no ;;
+      *) have_unwind_getipinfo=yes ;;
+    esac
+    changequote([,])
   fi
 
   if test x$have_unwind_getipinfo = xyes; then