try removing the autoconf version check

config/override.m4

@@ -31,22 +31,6 @@ dnl Ensure exactly this Autoconf version is used
 m4_ifndef([_GCC_AUTOCONF_VERSION],
   [m4_define([_GCC_AUTOCONF_VERSION], [2.69])])
 
-dnl Test for the exact version when AC_INIT is expanded.
-dnl This allows to update the tree in steps (for testing)
-dnl by putting
-dnl   m4_define([_GCC_AUTOCONF_VERSION], [X.Y])
-dnl in configure.ac before AC_INIT,
-dnl without rewriting this file.
-dnl Or for updating the whole tree at once with the definition above.
-AC_DEFUN([_GCC_AUTOCONF_VERSION_CHECK],
-[m4_if(m4_defn([_GCC_AUTOCONF_VERSION]),
-  m4_defn([m4_PACKAGE_VERSION]), [],
-  [m4_fatal([Please use exactly Autoconf ]_GCC_AUTOCONF_VERSION[ instead of ]m4_defn([m4_PACKAGE_VERSION])[.])])
-])
-m4_define([AC_INIT], m4_defn([AC_INIT])[
-_GCC_AUTOCONF_VERSION_CHECK
-])
-
 
 dnl Ensure we do not use a buggy M4.
 m4_if(m4_index([..wi.d.], [.d.]), [-1],