[tlbuild] trial builds for TL'13 -- Solaris 10 i386/x86_64

[Karl Berry]

    /opt/csw/lib/64/libgcc_s.so.1
    /opt/csw/lib/64/libstdc++.so.6
    /opt/csw/lib/64/libz.so.1

    (no /64/ for the i386 build, of course).  I may need to play with the RPATH.

Setting RPATH won't help users who don't happen to have those shared
libraries in /opt/csw/lib.  Does linking with -static make any of them
go away, perchance?

Bowman said he is working on a new (smallish) release of asy, though
that's not likely to be relevant to the above.

k