diff -U2 -r asterisk-1.4.25.1.orig/autoconf/ast_prog_ld.m4 asterisk-1.4.25.1/autoconf/ast_prog_ld.m4
--- asterisk-1.4.25.1.orig/autoconf/ast_prog_ld.m4	2008-10-20 06:45:56.000000000 +0200
+++ asterisk-1.4.25.1/autoconf/ast_prog_ld.m4	2009-06-07 15:54:41.000000000 +0200
@@ -8,5 +8,5 @@
     [test "$withval" = no || with_gnu_ld=yes],
     [with_gnu_ld=no])
-AC_REQUIRE([AST_PROG_SED])dnl
+AC_REQUIRE([AC_PROG_SED])dnl
 AC_REQUIRE([AC_PROG_CC])dnl
 AC_REQUIRE([AC_CANONICAL_HOST])dnl
diff -U2 -r asterisk-1.4.25.1.orig/autoconf/ast_prog_sed.m4 asterisk-1.4.25.1/autoconf/ast_prog_sed.m4
--- asterisk-1.4.25.1.orig/autoconf/ast_prog_sed.m4	2009-03-10 23:02:18.000000000 +0100
+++ asterisk-1.4.25.1/autoconf/ast_prog_sed.m4	2009-06-07 15:54:50.000000000 +0200
@@ -3,19 +3,2 @@
 # Check for a fully functional sed program that truncates
 # as few characters as possible.  Prefer GNU sed if found.
-AC_DEFUN([AST_PROG_SED],
-[AC_CACHE_CHECK([for a sed that does not truncate output], ac_cv_path_SED,
-    [dnl ac_script should not contain more than 99 commands (for HP-UX sed),
-     dnl but more than about 7000 bytes, to catch a limit in Solaris 8 /usr/ucb/sed.
-     ac_script=s/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb/
-     for ac_i in 1 2 3 4 5 6 7; do
-       ac_script="$ac_script$as_nl$ac_script"
-     done
-     echo "$ac_script" | sed 99q >conftest.sed
-     $as_unset ac_script || ac_script=
-     ifdef([_AC_PATH_PROGS_FEATURE_CHECK], [_AC_PATH_PROGS_FEATURE_CHECK], [_AC_PATH_PROG_FEATURE_CHECK])(SED, [sed gsed],
-	[_AC_FEATURE_CHECK_LENGTH([ac_path_SED], [ac_cv_path_SED],
-		["$ac_path_SED" -f conftest.sed])])])
- SED="$ac_cv_path_SED"
- AC_SUBST([SED])dnl
- rm -f conftest.sed
-])# AST_PROG_SED