http://www.midnight-commander.org/ticket/1459

Patch from upstream git

diff -ur mc-4.7.0-pre1.orig/configure.ac mc-4.7.0-pre1/configure.ac
--- mc-4.7.0-pre1.orig/configure.ac	2009-07-31 19:36:24.000000000 +0300
+++ mc-4.7.0-pre1/configure.ac	2009-08-05 15:16:25.000000000 +0300
@@ -535,7 +535,7 @@
 AM_CONDITIONAL(USE_EDIT, [test -n "$use_edit"])
 AM_CONDITIONAL(USE_VFS, [test "x$use_vfs" = xyes])
 AM_CONDITIONAL(USE_VFS_NET, [test x"$use_net_code" = xtrue])
-AM_CONDITIONAL(USE_UNDEL_FS, [test -n "$use_undelfs"])
+AM_CONDITIONAL(USE_UNDEL_FS, [test -n "$enable_vfs_undelfs"])
 AM_CONDITIONAL(USE_SAMBA_FS, [test -n "$use_smbfs"])
 AM_CONDITIONAL(ENABLE_MCSERVER, [test x"$enable_mcserver" = "xyes"])
 AM_CONDITIONAL(CHARSET, [test -n "$have_charset"])