[PATCH 2/2] m4: provide additional pkg-config macros

Luca Barbato lu_zero at gentoo.org
Sun Apr 29 23:52:13 PDT 2012

On 29/04/12 22:28, Tollef Fog Heen wrote:
> ]] Luca Barbato 
>> Macros to prepare a --with-variable-prefix triggered check for module.
> These lack documentation, and what's a --with-variable-prefix triggered
> check?  It needs a better name.

I copypasted the first line of the documentation. variable-prefix is one
of the arguments.

> (I'm not opposed to this in principle, but I'd like to see the docs
> explaining properly what the point is.)

The set of macros let you declare optional support for libraries
providing pkg-config using a compact macro instead the usual boilerplate
to have --with-libfoo:

     AS_HELP_STRING(--with-libfoo, enable libfoo support[

followed by some logic around a PKG_CHECK_MODULES

and the usual way to set HAVE_LIBFOO

AS_IF([test "$with_libfoo" = "yes"],
      [AC_DEFINE([HAVE_LIBFOO], 1, [Enable libfoo support])])

And such.

I hope that explains better what the macros do.



Luca Barbato

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