Building from source packages

[Jon Turney]

On 13/05/2016 20:44, Andrew Schulman wrote:
>> * a few packages mistakenly use DEPENDS
>>
>> A few packages mistakenly use DEPENDS rather than DEPEND, which is
>> silently ignored
>
> I'm surprised none of them are mine.  It confuses me every time that I have to
> use REQUIRES, but DEPEND instead of DEPENDS. I have to go look it up again once
> or twice a month.
>
> To minimize the cognitive load on maintainers' brains, I humbly propose that
> cygport honor both REQUIRE and REQUIRES, and DEPEND and DEPENDS.
>
> Or it that's too ugly, make them both of the same form, i.e. REQUIRE and DEPEND.
> A one-time backwards-incompatible change that would make things easier in the
> future.

Yes, I get confused by it too, which is how I noticed this problem.  But 
I'm not sure how to fix this.

I wonder if it's possible to check the set of variables which exist 
after evaluating the cygport file, and warn if there are unexpected ones.

(Any existing uses of temporary variables inside a cygport file would 
have to be unset before it exits to avoid warning about them, but that 
seems a fair price to pay...)