[pkg-gnupg-maint] Bug#643341: Bug#643341: libgpg-error-dev: cross-compiling anything based on libgpg-error is painful

[NIIBE Yutaka]

Simon McVittie <smcv at debian.org> wrote:
> The wontfix tag was because upstream are not willing to add pkg-config
> metadata

It was.  Now, it has been changed.

In the next version of libgpg-error (1.33), we will offer gpg-error.pc
(if nothing is going wrong).  I believe this change helps
cross-compiling other packages with libgpg-error.

IIUC, Debian offers its (special) script named pkg-config-crosswrapper,
then, users can use <triplet>-pkg-config command generated by
pkg-config-dpkghook.

Currently, in our development version (to be 1.33), gpg-error-config
script itself is not architecture independent (having architecture
dependent string), because it needs to find the gpg-error.pc file in
architecture dependent path, just like pkg-config does.

I'm not sure if it's worth to have <triplet>-gpg-error-config command,
when we have gpg-error.pc.

Nevertheless, I think that it is possible to improve gpg-error-config
script to detect architecture dependent path dynamically... to be Debian
friendly (possibly), so that Debian can offer <triplet>-gpg-error-config
command.
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