Description of Problem:

There is a compilation issue in 'drivers/video'.  Namely 'fbgen.o' is
used by some other objects ('pm2fb.o', 'pm3fb.o', 'clgenfb.o',
'tridentfb.o', 'tgafb.o', 'stifb.o').  Now if at least one of these
"users" is configured as built-in, implying that fbgen.o will be compiled
as an integral part of a kernel, and some other(s) as modules then you
will see from 'depmod' complaints about unresolved symbols for functions
provided by fbgen.  This actually hits, for example, when one tries to
use a default configuration on Alpha with 'tgafb' built-in.

A fix is obvious.  Add missing EXPORT_SYMBOL(...) to 'fbgen.c' and
'fbgen.o' to a list of export-objs in drivers/video/Makefile.
Attached is a patch for 2.4.18-4 sources.