make "make" ignore build errors

[Jona Joachim]

Hi!

I wanted to know if it is possible to tell "make" that it should ignore
when an error occurs in the building process.
I'm the maintainer of the devel/tigcc port which is a collection of
tools to build binaries for the Texas Instruments graphing calculators
which run on Motorola 68k processors. The main part of this collection
is actually a patched gcc built for m68k-coff.
Building gcc 4.0.2 (the version supported by the latest tigcc) for 68k
will always fail because it will try to build stuff for m68k using the
GNU AS which it finds in the path, which will not support the 68k
platform in most cases: "as: unrecognized option `-mc68020'"
This isn't fatal however because when this point is reached in the
Makefile everything that is needed is already built and everything that
follows is not needed. I know that this is a dirty hack but there is no
other trivial way.
Is there a way to ignore this error and resume the build process for the
other tools?

Jona