Re: _AM_PATH_GPGRT_CONFIG produces spurious error output

[NIIBE Yutaka]

Hello,

Thank you for your report.

Bruno Haible <bruno@clisp.org> wrote:
> dev.gnupg.org's src/libgcrypt.m4 is mirrored into Gnulib.

I didn't know that.  I now understand that it's used for basic crypto
support.

> Building a recent testdir of all of Gnulib on AIX 7.1, I see this
> among the output of 'configure':
>
> ...
> checking for gpgrt-config... no
> ../configure[28123]: --version:  not found
> checking for preferred C# implementation... any
> ...
>
> It looks like the culprit is this commit:
>
> https://dev.gnupg.org/rCad3b599462bdbc459f6c7be867e9a12ab46481b3

I see the problem; In case of Gnulib, for configuration with m4,
AM_PATH_LIBGCRYPT is used but AM_PATH_GPG_ERROR is not used.  This is a
valid use case, but it is not well tested with various situations
(especially, newer libgcrypt.m4 is not tested well with old libgcrypt
installations).

Fixed in:

    https://dev.gnupg.org/rC0fd9ec3403ea66d39f32602dce53bc5219e4c158
--