[Vm-dev] [OpenSmalltalk/opensmalltalk-vm] Revise docs on HowToBuild on Windows: cygwin tools must be in PATH [ci skip] (PR #657)

Eliot Miranda notifications at github.com
Sat Nov 5 20:45:32 UTC 2022

Hi Nicolas, Hi Christoph,

On Fri, Nov 4, 2022 at 2:09 PM Nicolas Cellier ***@***.***>

> Hi Christoph,
> historically, we don't use M$ compilers, notably because of buggish
> pre-processor.
> We use the mingw layer as target architecture instead.
> Cygwin offers all the necessary tools to cross-compile for mingw target
> for a long time, so we used that.
> Nowadays, it could be wsl as well as it can perform cross-compilation for
> mingw target easily too.
> Now that Eliot added makefiles for using LLVM compiler, we could
> completely avoid mingw layer, but the makefiles still use some unixy
> commands, so we still need a unix layer; I guess that Eliot just reused the
> already existing cygwin dependency...
Exactly. Lazy, but it saved me a lot of time.

> If you want to replace it with something simpler (maybe msys minimal
> shell), you're welcome!
> Still, I find it nice to have a choice, compilers gradually exploit the
> presumed absence of undefined behavior more and more aggressively, compiler
> bugs happens too, we might also depend on some implementation details like
> stack handling, so keeping a mingw target (either thru gcc or clang) still
> has some value IMO.

Right.  At the time Andreas wrote the Win32 subsystem there was no
community edition of the M$ compilers; the only free option was gcc &
mingw.  So using the M$ compilers wasn't an option (and they weren't up to
the job).  Now things are different.  But throwing away the mingw build is
silly.  It doesn't cost us anything.
best, Eliot

Reply to this email directly or view it on GitHub:
You are receiving this because you are subscribed to this thread.

Message ID: <OpenSmalltalk/opensmalltalk-vm/pull/657/c1304638557 at github.com>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.squeakfoundation.org/pipermail/vm-dev/attachments/20221105/57a2eadc/attachment.html>

More information about the Vm-dev mailing list