Merge: 927194da 43fc0325
Author: Frediano Ziglio <freddy77@gmail.com>
Date:   Wed Aug 18 11:09:33 2021 +0100

    Merge 1.3 release into master

Author: Jan umgarten <marsupilami79@gmx.de>
Date:   Mon Aug 16 15:07:58 2021 +0200

    Keep make from failing if the source path contains spaces.

Author: Jan umgarten <marsupilami79@gmx.de>
Date:   Mon Aug 16 15:07:58 2021 +0200

    Keep make from failing if the source path contains spaces.

Author: Degaart <user.email>
Date:   Sun Jul 11 15:56:08 2021 +0300

    Fix errors when including cspublic.h in a C++ source file

Author: Frediano Ziglio <freddy77@gmail.com>
Date:   Thu May 27 13:14:19 2021 +0100

    Improve unit tests section in user guide

    Make clean they are not unit tests and how to setup PWD file.

Author: Frediano Ziglio <freddy77@gmail.com>
Date:   Thu May 27 13:11:33 2021 +0100

    Update file names in user guide

Author: Frediano Ziglio <freddy77@gmail.com>
Date:   Sun May 23 09:12:07 2021 +0100

    Upgrade ACX_PTHREAD

    Use new version of M4 macros.

Author: Craig A. Berry <craigberry@mac.com>
Date:   Sun May 23 09:20:41 2021 +0100

    Make VMS build successfully

Author: Frediano Ziglio <freddy77@gmail.com>
Date:   Sun May 23 09:13:16 2021 +0100

    Fix compilation of user guide if out-of-tree build is used

    userguide.xsl file has to be available in out of tree doc
    directory.

