--- ulogd-1.24/configure.in	2005-11-25 20:58:27.000000000 +0100
+++ ulogd-1.24/configure.in	2009-11-30 08:41:40.000000000 +0100
@@ -20,6 +20,7 @@
 AC_C_CONST
 AC_TYPE_SIZE_T
 AC_STRUCT_TM
+AC_SYS_LARGEFILE
 
 dnl Checks for library functions.
 AC_FUNC_VPRINTF