Found a libtool issue (vas: Avoid gawkextlib as a separate shared library)

[Manuel Collado]

El 19/05/2022 a las 11:28, Eli Zaretskii escribió:
> > Cc: aschorr@telemetry-investments.com, arnold@skeeve.com, bug-gawk@gnu.org
> > From: Manuel Collado <mcollado2011@gmail.com>
> > Date: Wed, 18 May 2022 23:54:19 +0200
> >
> > [...]
> > *** Warning: linker path does not have real file for library -lgawkextlib.
> > *** I have the capability to make that library automatically link in when
> > *** you link to this library.  But I can only do this if you have a
> > *** shared version of the library, which you do not appear to have
> > *** because I did check the linker path looking for a file starting
> > *** with libgawkextlib and none of the candidates passed a file format test
> > *** using a file magic. Last file checked: /c/gnu/lib/libgawkextlib.dll.a
>
> This seems to say that libtool didn't like your libgawkextlib.dll.a
> import library for some reason or other.  I have no idea why that
> happened.

Well, the libtool script generated while building gawk-mpfr contains the 
following:

----------------
#! /bin/sh
# Guess values for system-dependent variables and create Makefiles.
# Generated by GNU Autoconf 2.69 for Gawk MPFR Extension 1.1.0.
[....]
*** Warning: the command libtool uses to detect shared libraries,
*** $file_magic_cmd, produces output that libtool cannot recognize.
*** The result is that libtool may fail to recognize shared libraries
*** as such.  This will affect the creation of libtool libraries that
*** depend on shared libraries, but programs linked with such libtool
*** libraries will work regardless of this problem.  Nevertheless, you
*** may want to report the problem to your system manager and/or to
*** bug-libtool@gnu.org
--------------

Has this bug been fixed in more recent versions of autotools or other 
developing tools?

So perhaps it is necessary to upgrade a standard MinGW platform with 
newer tools from third-party sources. In order to successfully build 
gawkextlib extensions that require the gawkextlib base library.

Thanks.

--
Manuel Collado - http://mcollado.z15.es