+enable_chroot=yes
+AC_CHECK_HEADERS([sys/capability.h],,enable_chroot=no)
+AC_CHECK_HEADERS([sys/prctl.h],,enable_chroot=no)
+AC_CHECK_FUNCS([chroot],,enable_chroot=no)
+
+AM_CONDITIONAL(ENABLE_CHROOT, test "x$enable_chroot" = "xyes")
+
+if test "x$enable_chroot" = "xyes" ; then
+ AC_DEFINE([ENABLE_CHROOT], 1, [Enable chroot() usage])
+fi
+