anchor.diff:  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, libxml2 and zlib
  -will not be gathered or compiled.
  +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
  
positive.code: 
  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; 
  
   $ 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 
  
  === 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)
   . Info-zip command line zip
   . curl and awk (or name gawk from unxutils as awk)
   . Subversion and GIT command line tools
  
negative.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 use CPAN for the packages not distributed with the OS as listed above; 
  
   $ cpan install Protocol::HTTP2::Client
  
  