2008-08-27  Stepan Kasal  <skasal@redhat.com>

	* config/gnulib/extensions.m4 (gl_USE_SYSTEM_EXTENSIONS):
	Require Autoconf 2.61.
	(AC_USE_SYSTEM_EXTENSIONS): Do not redefine.

--- amanda/config/gnulib/extensions.m4.orig	2008-08-27 10:11:24.000000000 +0200
+++ amanda/config/gnulib/extensions.m4	2008-08-27 10:16:13.000000000 +0200
@@ -16,7 +16,7 @@
 # ------------------------
 # Enable extensions on systems that normally disable them,
 # typically due to standards-conformance issues.
-AC_DEFUN([AC_USE_SYSTEM_EXTENSIONS],
+AC_DEFUN([do_not_redefine_AC_USE_SYSTEM_EXTENSIONS],
 [
   AC_BEFORE([$0], [AC_COMPILE_IFELSE])
   AC_BEFORE([$0], [AC_RUN_IFELSE])
@@ -55,4 +55,4 @@
 # Enable extensions on systems that normally disable them,
 # typically due to standards-conformance issues.
 AC_DEFUN([gl_USE_SYSTEM_EXTENSIONS],
-  [AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])])
+  [AC_PREREQ(2.61) AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])])