Problem getting back-art to run

[jonathon]

I got back-art to build and install on FreeBSD, but here is the error
after I rebuild GNUMail, for example, and then try to run it:

local:~> openapp GNUMail
2003-06-03 23:56:17.251 GNUMail[26334] No local time zone specified.
2003-06-03 23:56:17.251 GNUMail[26334] Using time zone with absolute
offset
0.
2003-06-03 23:56:17.250 GNUMail[26334] NSApplication.m:191  Assertion
failed
in initialize_gnustep_backend.  Unable to find backend
libgnustep-back.bundle
/usr/local/GNUstep/Local/Applications/GNUMail.app/ix86/freebsd/gnu-gnu-gnu/GNUMa
+il:
Uncaught exception NSInternalInconsistencyException, reason:
NSApplication.m:191  Assertion failed in initialize_gnustep_backend. 
Unable
to find backend libgnustep-back.bundle
local:~>

What do I need to fix to get this to work?

jonathon