--- dx-4.4.4/configure.ac.orig	2006-08-21 23:56:08.000000000 +0200
+++ dx-4.4.4/configure.ac	2008-11-13 12:11:34.000000000 +0100
@@ -5,6 +5,7 @@
 AC_INIT([dx],[4.4.4])
 
 dnl Process this file with autoconf to produce a configure script.
+AC_CONFIG_MACRO_DIR([m4])
 AC_CONFIG_SRCDIR([include/dx/arch.h])
 AC_CONFIG_HEADERS([include/dxconfig.h])
 AM_INIT_AUTOMAKE
@@ -218,9 +219,9 @@
 dnl End of command line options configuration
 
 dnl Start DX configuration
-AC_LANG([C++])
 AC_CHECK_HEADERS(stdlib.h)
 AC_LANG([C])
+AC_LANG([C++])
 
 #
 # Check for large file support
@@ -871,7 +873,6 @@
 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[int a = false;]])],
   [AC_DEFINE(CXX_HAS_FALSE, 1, [Define to 1 if c++ compiler defines false])],
   [AC_DEFINE(CXX_HAS_FALSE, 0)])
-AC_CHECK_FUNCS(getdtablesize)
 
 AC_LANG([C])
 
@@ -882,7 +883,7 @@
         pipe _pipe _popen popen _pclose pclose random rand srandom \
 	shmat getopt srand opendir _findfirst strrstr strcasecmp \
 	stricmp getpid _getpid unlink _unlink getlogin isatty _isatty \
-	setsockopt isnan finite )
+	setsockopt isnan finite getdtablesize)
 
 AC_MSG_CHECKING(if RAND_MAX defined)
 AC_COMPILE_IFELSE(