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From: Simon Wright <simon@pushface.org>
Newsgroups: comp.lang.ada
Subject: Re: Thick bindings to a C library and gnattest: suggestions?
Date: Mon, 01 Jul 2013 13:47:03 +0100
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Date: 2013-07-01T13:47:03+01:00
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"Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> writes:

> There are other options, but they are incredibly intrusive, especially
> when your bindings are themselves a library. Linker options are
> ignored for library projects. They are not "transitive". I.e. each
> client project will need to specify ever changing linker switches.

In TASH[1], the GPR has

  for Library_Name use "tash";
  for Library_Kind use "static";
  for Library_Dir use "../../lib/tash/lib-static";
  for Source_Dirs use ("../../include/tash");
  for Externally_Built use "true";

  package Linker is
     for Linker_Options use Tash_Options.Linker_Options;
  end Linker;

where tash_options.gpr is generated in the configure stage for the
library; here it contains

   Linker_Options :=
     (
      "-L/usr/lib",
      "-ltk8.5",
      "-ltcl8.5"
     );

and to use it I just 'with "tash";' in my own GPR, and the linker
options get applied as you would hope.

[1] https://sourceforge.net/projects/tcladashell/