64bit Ubuntu problem

Wait a minute i have that already :O

Any other ideas before i panic and run back to the cover of safe 32bit?
Also getting when i try and rebuild all modules :

Compiling:blitz_app.c
In file included from /usr/include/features.h:345,
                 from /usr/include/ctype.h:27,
                 from /home/dan/BlitzMax/mod/pub.mod/stdc.mod/stdc.h:5,
                 from /home/dan/BlitzMax/mod/brl.mod/blitz.mod/blitz.h:5,
                 from /home/dan/BlitzMax/mod/brl.mod/blitz.mod/blitz_app.c:2:
/usr/include/gnu/stubs.h:7:27: gnu/stubs-32.h: No such file or directory
Build Error: failed to compile /home/dan/BlitzMax/mod/brl.mod/blitz.mod/blitz_app.c
Process complete

mabe relevent