Re: have headers & libs, but cannot configure/make

[John W. Eaton]

On 01/06/2017 10:18 AM, Mike Miller wrote:
> On Fri, Jan 06, 2017 at 09:55:44 -0500, John W. Eaton wrote:
> > On 01/05/2017 02:37 PM, Mike Miller wrote:

> > Does it work now for linking your pcre library?
>
> I don't think it will, because it doesn't take PCRE_CPPFLAGS into
> account when testing for the presence of pcre.h.

Oh.  Oops.

> Why not use OCTAVE_CHECK_LIB for consistency?

We could do that, but I thought we were aiming to use pkg-config.

There are a few other cases where we use PKG_CHECK_MODULE to get 
FOO_CFLAGS and FOO_LIBS, then we set FOO_CPPFLAGS=$FOO_CFLAGS.  Ugh.

I would prefer setting -I options (only) in CPPFLAGS, -L options (only) 
in LDFLAGS, and the -llibfoo in FOO_LIBS.  So yeah, maybe we should be 
using OCTAVE_CHECK_LIB, possibly modified to use pkg-config if 
pkg-config has info for the library we are looking for?

jwe