Path discovery and simplification of libffi-unix.lisp

[Luís Oliveira]

On Sat, Jul 11, 2015 at 9:45 PM, Liam Healy <lnp at healy.washington.dc.us> wrote:
> I'm trying to catch up on recent changes made to CFFI with regard to
> path discovery with the idea of simplifying code, both in CFFI itself,
> and in GSLL (which uses CFFI). The grovel option pkg-config-cflags
> seems to permit the elimination of some other code in e.g.
> libffi-unix.lisp. With the presence of (pkg-config-cflags "libffi"
> :optional t), it seems like these could be eliminated:
>
> #+darwin
> (cc-flags "-I/opt/local/include/")
>
> #+openbsd
> (cc-flags "-I/usr/local/include")
>
> and these
>
> #+darwin
> (include "ffi/ffi.h")
> #-darwin
> (include "ffi.h")
>
> could be replaced with
> (include "ffi.h")

That would have been a nice simplification. Alas, AFAICT, OS X does
not ship with pkg-config. (And even if one installs pkg-config, the
system-installed libffi is not registered in the pkg-config database.)

I don't know about OpenBSD.

Cheers,

-- 
Luís Oliveira
http://kerno.org/~luis/