acm-5.0-14 fails after start :
[stein@slave3 stein]$ acm
ACM version 5.0, Copyright (C) 1991-1998 Riley Rainey
ACM comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to distribute it under the
conditions described in the COPYING file.
DIS protocol active.
xwud: XWD file format version mismatch.xwud: Error => exiting.
xwud: No such file or directory
Rebuilding it against XFree86-4.0.1-0.43 solves the problem. fixed.