--- a/configure.ac~	2004-11-03 00:29:03 +0300
+++ a/configure.ac	2006-12-20 01:22:06 +0300
@@ -75,9 +75,9 @@ AC_HEADER_TIME
 AC_STRUCT_TM
 
 dnl We use some standard types that some systems don't define.
-dnl We use the AC_UNP_CHECK_TYPE macro here, which checks more headers
+dnl We use the AC_CHECK_TYPE macro here, which checks more headers
 dnl than does the standard AC_CHECK_TYPE macro.
-AC_UNP_CHECK_TYPE(u_int32_t, unsigned int)
+AC_CHECK_TYPE(u_int32_t, unsigned int)
 
 dnl ##################################################################
 dnl The AC_CHECK_FUNC_PROTO checks for function prototypes in specific headers.