anchor.diff:  
   Perl is used by the openssl documentation schema (Text::Template)
   and many Perl packages are used by the httpdtest perl framework.
  -
   To deploy these using Ubuntu 16.04 packages, use;
   
    $ apt install perl-modules libtext-template-perl libcrypt-ssleay-perl libnet-sslglue-perl libhttp-dav-perl libanyevent-http-perl libdatetime-perl libmodule-build-perl libmodule-build-tiny-perl libtest-leaktrace-perl libtest-tcp-perl
   
  -And finally use CPAN for the packages not distributed with the OS; 
  +And use CPAN for the packages not distributed with the OS as listed above; 
   
    $ cpan install Protocol::HTTP2::Client
   
   These base packages are required for deployment (and are incidently installed
   with the -devel packages above; most are already present by default);
   
  - $ apt-get -y install libexpat1 libjansson4 libpcre3 libxml2 liblua5.3-0 
  + $ apt-get -y install libexpat1 libjansson4 libpcre3 libxml2 \
  +     liblua5.3-0 zlib1g 
   
   === Microsoft Windows dependencies
   
    . Microsoft Visual Studio 2017 or 2015
    . NASM Assembler
    . ActiveState or Strawberry Perl
  - . unxutils or gnuwin32 Windows-native unix command line tools 
  -(Note mingw and cygwin are not supported)
  + . unxutils or gnuwin32 Windows-native unix command line tools (Note mingw and cygwin are not supported)
    . Info-zip command line zip
    . curl and awk (or name gawk from unxutils as awk)
    . Subversion and GIT command line tools
  
positive.code: For the actual `Makefile.build` phase, a number of system component -devel
  packages are needed.
  
   $ yum install libuuid-devel expat-devel jansson-devel libxml2-devel lua-devel pcre-devel zlib-devel docbook2X
  
  Perl is used by the openssl documentation schema (Text::Template)
  and many Perl packages are used by the httpdtest perl framework.
  
  To deploy these using RHEL 7 packages, use
  
   $ yum install perl-core perl-Text-Template perl-Module-Load-Conditional perl-HTTP-DAV perl-LWP-Protocol-https perl-AnyEvent-HTTP perl-Crypt-SSLeay perl-Net-SSLGlue perl-DateTime perl-Module-Build-Tiny perl-Test-LeakTrace perl-Test-TCP
  
  And finally use CPAN for the packages not distributed with the OS; 
  
   $ cpan install Protocol::HTTP2::Client
  
  
negative.code: into the source tree, and generates a version and directory name manifest.
  
  This will gather all components if GRP=complete is specified, otherwise
  the linux system package sources of expat, lua, pcre, jansson, libxml2
  and zlib will not be gathered or compiled.
  
  Each component is designed for persistence, if from git or svn it performs
  a fetch / update, if from a most recent release package, it fetches and
  