Re: RFC on building the header bits

[Benjamin Kosnik <bkoz at redhat dot com>]

> I've got a working solution to the problem of picking up the
> ISO-compliant headers on Solaris 8 (or others, if available).  The
> catch is, the headers need to be built.  I notice the shadow headers
> also need to be built.  The shadow headers won't work right now,
> because they are built by the src/Makefile, but required by the
> libsupc++ build, which is a dependency of the src build (you get the
> idea?).

Right. 

You can do this at the point of configure.in where we make std_limits.h.

> I've tried a few klever tricks, but automake is being very difficult
> about building header files for you, at least the way we need it done. 
> Some built header files are generated directly by the configure script,
> and while inelegant, that will work (you just lose the dependency
> tracking make can bring).

this is what mkcshadow does

> What I'm proposing, and soliciting comments on, is the idea that ALL
> headers in the c/c_std/c_shadow thing get built (with the c_std headers
> just being links or copies from the src to the bld area).  To get
> around the automake limitations, I would add a shell script that is
> invoked at confiure time that will generate the target bits from the
> appropriate source (rather than just including the code in the
> configure script).  This will make some of the later build
> dependencies a little simpler, and installations will be a little
> simpler, and I can finish this project and move on to something else.

Ok. Try this approach, so that you can post a clean working patch. Once 
we can see what you've done perhaps somebody can up with something really 
clever. 

thanks,
benjamin