Re: VPATH and vpath problems

[Dan Clarke]

On 2006-6-7 16:44 UTC, Dan Clarke wrote:
> > / / / VPATH = w:/modules7/graphics/pc/vshaders/effects/ / vpath %.hvs
> > w:/modules7/graphics/pc/vshaders/effects/ / / / %.hvo: %.hvs/ / / /
> > and I get the following error .../ / / / gnumake: *** No rule to make
> > target/ / `\gamedir\vshaders\effects\ccorrect.hvo', needed by
> > `project.exe'.  Stop./
>
> Try building in the object directory. Then you can specify the
> object files as, e.g.,
>  ccorrect.hvo
> and vpath can find
>  w:/modules7/graphics/pc/vshaders/effects/ccorrect.hvo
> as expected. I'm guessing that you're specifying objects like this:
>  /gamedir/vshaders/effects/ccorrect.hvo
> so that with vpath you can find
>  gamedir/vshaders/effects/ccorrect.hvo
>
> w:/modules7/graphics/pc/vshaders/effects/ccorrect.hvo/gamedir/vshaders/effects/ccorrect.hvo 
>
>
> neither of which is what you want. See:
>  http://make.paulandlesley.org/vpath.html
>
>
>
>
>
> Yes, you're right - I am specifying objects as
> "/gamedir/vshaders/effects/ccorrect.hvo".  The ".hvo" objects are not
> intermediate files.  They are actually used by my final program and
> cannot be in the same directory as my makefile - they must go into the
> directories specified in the example below.  The main makefile is in the
> gamedir directory, and my .hvo files need to end up off the
> "/gamedir/vshaders/" directory.
>
> For example ...
>
> "\modules7\graphics\pc\vshaders\effects\ccorrect.hvs" --->
> "\gamedir\vshaders\effects\ccorrect.hvo"
> "\modules7\graphics\pc\vshaders\effects\contrast.hvs" --->
> "\gamedir\vshaders\effects\contrast.hvo"
> "\modules7\graphics\pc\vshaders\effects\blur.hvs" --->
> "\gamedir\vshaders\effects\blur.hvo"
>
> "\modules7\graphics\pc\vshaders\prelit\spec.hvs" --->
> "\gamedir\vshaders\prelit\spec.hvo"
> "\modules7\graphics\pc\vshaders\prelit\reflect.hvs" --->
> "\gamedir\vshaders\prelit\reflect.hvo"
>
> "\modules7\graphics\pc\vshaders\unlit\spec2.hvs" --->
> "\gamedir\vshaders\unlit\spec2.hvo"
> "\modules7\graphics\pc\vshaders\unlit\reflect2.hvs" --->
> "\gamedir\vshaders\unlit\reflect2.hvo"
>
> etc.
>
> There's loads more directories like this, all going into some directory
> coming off "\gamedir\vshaders\".  The path relative to
> "\gamedir\vshaders\" matches the path relative to
> "\modules7\graphics\pc\vshaders\".
>
> In each directory containing the source ".hvs" files, I have another
> included makefile which has a list of all the .hvo files that need
> building in that directory.
>
> As there's lots of target directories for these .hvo files, then I can't
> just change directory into them (or can I?).
>
> Any ideas?
>
> Thanks again,
> - Dan



I think I've worked out how to do it.  As each .hvs source directory has 
a sub-makefile in it anyway - I'm just putting an implicit rule at the 
top of each sub-makefile which says which directory it should go in.  
Seems to work quite nicely.

- Dan