Re: [A-a-p-user] How to associate a suffix with several filetypes?

[Bram M. <Br...@mo...>]

Thore Karlsen wrote:

> I'm trying to compile resource files in MSVC. It takes .rc files as
> input, and the output files normally have the suffix .res.
> 
> I've got the following:
> 
> :filetype
>    suffix res res
> :action compile rc
>    :sys rc /Fo$target $source
> :route rc res
>    compile
> 
> However, I can't figure out how to tell AAP that .res files are valid
> objects, libobjects, and dllobjects, so the linker can use these files
> directly.
> 
> I could do something like this instead:
> 
> :filetype
>    suffix res object
> 
> But this would result in an .obj file, and might cause a clash with
> another .obj file, so I'd like to use the .res suffix.

Good point.  I think currently you can only add the ".res" file in $LIBS
or overrule the filetype:

	:program foo : foo.c foo.res (filetype = object)

You do need to specify the building separately then:

	foo.res: foo.rc
		:do compile $source

Somehow we should be able to specify that the linker also accepts "res"
files besides "object" files.  This must be done in a flexible way, so
that various compilers can tell what kind of files they can link
together.  And still disallow things that will fail.

Perhaps we can specify the filetypes that a build action can use.  Oh,
we actually already have that:

	:action build_msvc object,res
		...building...

Tricky is that we only get to "build_msvc" through the default "build"
action that checks $C_BUILD_ACTION (this is in default.aap).  And the
default build action does not specify "res", of course.

It's not easy to think of a simple solution that works in a generic way.
Ideas?

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