Solaris 8 compilation errors

Hello,

Am new to list (and Solaris for that matter). I have tried a couple of times
to compile postgres 7.0.3 under solaris 8 and it fails consistently,
reporting an error 2 in string_info.c (I can supply the full text of the
build if it's helpful.)
Have tried a couple of different configurations all have --with-tcl in
common. Configure always completes correctly...
Am using gmake 3.79.1 and gcc 2.95.

I don't see Solaris 8 on the list of supported platforms, but Solaris 7 is
there, so I had hoped 8 would work pretty much the same. Has anyone else run
into this problem?
 -john