--- configure.orig	2010-07-18 17:37:18.232382812 +0200
+++ configure	2010-07-18 17:39:12.338202369 +0200
@@ -13006,7 +13006,7 @@
 done
 
 		;;
-		linux*)
+		linux*|kfreebsd*-gnu)
 		ac_os_implementation="linux"
 		for ac_header in pwd.h signal.h stdio.h string.h sys/resource.h \
 				sys/stat.h sys/types.h unistd.h