Re: Generating missing depfiles by an automake based makefile

[Jan Engelhardt]

On Thursday 2023-02-09 22:53, Dmitry Goncharov wrote:
>
>> If you try this with e.g.
>> OpenBSD make, it will complain.
>
>That's why i asked those questions about portability.
>Do i understand it correctly, that a need to support bmake forces
>automake to abandon a good mechanism to rebuild depfiles?

Maybe not. autoconf is big on text substitution, and there already is an 
AM_MAKE_INCLUDE m4 macro to test for the type of include directive.

It would probably take a new m4 macro AM_MAKE_SILENT_INCLUDE that tests 
for the availability of "-include", and if found, also somehow changes 
the rest of the depfile logic to use absent-depfiles rather than 
empty-depfiles.