--- a/configure.in	2010-06-20 12:48:58.356043542 +0400
+++ b/configure.in	2010-06-20 12:48:47.550195355 +0400
@@ -33,7 +33,7 @@
 AC_FUNC_MMAP
 AC_TYPE_SIGNAL
 AC_FUNC_VPRINTF
-AC_CHECK_FUNCS(select strdup strerror ioperm)
+AC_CHECK_FUNCS(select strdup strerror)
 
 dnl setup options.
 AC_PATH_PROGS(jfb_gzip_path, gunzip, :)