> Date: Wed, 13 Jul 2005 09:20:30 -0400
> From: "Paul D. Smith" <[EMAIL PROTECTED]>
> Cc: [email protected]
>
> %% "Earnie Boyd" <[EMAIL PROTECTED]> writes:
>
> >> My preference would be to keep this behavior identical between
> >> systems (that is, remove the TAB and do not add a space)... one less
> >> difference between ports is a good thing in my book.
>
> eb> I should clarify that I mean when !unixy_shell or whatever the
> eb> variable is.
Yes, please keep the operation under unixy_shell identical to what
Make does on Posix platforms.
> I still think that people make an attempt to use makefiles portable
> between the two systems, even without a unixy_shell on Windows.
This is impossible, by and large: too much of the Posix shell
semantics is unsupported by stock DOS/Windows shells. See below.
> Most Windows commands (other than command.com) take "/" instead of "\",
> etc. so it's possible for some subset of requirements anyway.
That's not the most painful problem: for-loops, if-then-else, tests
with `[', compound commands like "foo && bar", setting an environment
variable only for the subsequent command ("foo=bar do_something"),
`command` expansion, and a few others are the real show-stoppers.
Unix Makefiles are replete with these techniques, as you, Paul, know
only too well; none of them will work without changes with Windows
shells that aren't Unixy.
So I think the Windows port should keep backward compatibility with
Windows shells and change only the Unixy shell behavior.
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