[m-dev.] Problematic Mmake dependencies

[Warwick Harvey]

I wrote:
> The *only* reason this (and similar) dependencies are difficult to implement 
> is because you cannot refer to variables set by the user in the Mmakefile in 
> the dependencies generated in a .dep file.  [...]
> 
> [...]  This would appear to make quite a few headaches disappear.

Of course, it leaves a few big ones lying around.  GNU Make, in its infinite 
wisdom, does not define the variable `$@' in the dependency list of a rule 
--- only in the body.  So this still isn't going to interact gracefully with 
per-program/file variable definitions, but maybe that can be hacked around.

Sigh.

Warwick

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