ISA specific dependencies

[Peter FELECAN]

I'm struggling to provide a multi ISA guile which will enable a 64 bit
libopts build.

The issue that I encounter is that the runtime dependencies for 32 and
64 bit ISAs are different.

I looked for directions in our build documentation and in the current
recipes and I didn't found a solution.

There is the possibility to write:

RUNTIME_DEP_PKGS_CSWlibguile2-0-22_sparc	+=	CSWlibltdl7

But how can I write a more specific one for sparcv9 or amd64?

Thank you in advance
-- 
Peter