Is it viable to do a big compile?

[labeas]

I'd really like to have `wily`: my favorite app; which I used under
x86 & RPi, running on this TC64. It was written in the 90's and I
can't find a binary.tgz [like for RPi] so I'd need to compile the
x86-package-with-sources that I've got.

Perhaps that's not possible?
Perhaps the package only <Makes> with 32-bit compilers?
And the compileris big, just to make one package?

[nitram]

The 'wily' extracted from the i386 .deb link worked fine in 32bit TC7, maybe the amd64 .deb will work for you, just extract the .deb and data contents and move the binaries into ~/.local/bin/: https://packages.debian.org/wheezy/wily

[Misalf]

Why shouldn't it be possible?
I'd say start with installing  compiletc.tcz , then try  ./configure  and  make  and see if anything is missing.
If a specific file is reported to be missing, you can easily find the extension that provides it via Apps browser's "Provides" feature.