Re: Merging rules

[Basin Ilya]

Hi Sébastien.


> Then make will think that with only one invocation all the different
> types of files will be produced, which is of course wrong.

I think you've got a wrong impression. Make will run the rule as many times as 
needed to make all the targets.


13.06.2018 20:38, Sébastien Hinderer пишет:
> Dear all,
> 
> Assume the following fragment of a Makefile
> 
> %.$(O): %.c
>         $(CC) ...
> 
> %.pic.$(O): %.c
>         $(CC) ...
> 
> %.p.$(O): %.c
>         $(CC) ...
> 
> %.i.$(O): %.c
>         $(CC) ...
> 
> %.d.$(O): %.c
>         $(CC) ...
> 
> That is, these rules build different types of object files from C
> sources.
> 
> Until recently the commands in these rules were different but now,
> thanks to target-specific variables, I managed to make all the commands
> in these rule look exactly the same.
> 
> I am now wondering: is there a way to "merge" all these rules in just
> one generic rule?
> 
> I assume if I write something like
> 
> %.$(O) %.pic.$(O) %.p.$(O) %.i.$(O) %.d.$(O): %.c
>         $(CC) ...
> 
> Then make will think that with only one invocation all the different
> types of files will be produced, which is of course wrong.
> 
> Is there another way to achieve this?
> 
> Many thanks in advance!
> 
> Sébastien.
> 
> 
> _______________________________________________
> Help-make mailing list
> address@hidden
> https://lists.gnu.org/mailman/listinfo/help-make
>