diff -up SQUIRREL2/configure.ac.automake-1_13 SQUIRREL2/configure.ac
--- SQUIRREL2/configure.ac.automake-1_13	2013-01-10 02:14:03.473573758 +0100
+++ SQUIRREL2/configure.ac	2013-01-10 02:15:09.740951419 +0100
@@ -4,12 +4,11 @@ AC_INIT([squirrel], [2.2.5], [])
 AC_CANONICAL_TARGET
 AC_CONFIG_SRCDIR([configure.ac])
 AM_INIT_AUTOMAKE
-AM_CONFIG_HEADER([config.h])
+AC_CONFIG_HEADERS([config.h])
 
 ## Checks for programs.
 AC_PROG_CC
 AC_PROG_CXX
-AM_PROG_CC_STDC
 AC_PROG_INSTALL
 AC_PROG_MAKE_SET
 AC_PROG_LIBTOOL