anchor.diff:  == Phase 2: Preconfigure Sources
   
    $ cd src/
  - $ make -f ../mak/Makefile.preconfig [BLD\{type}]
  + $ make -f ../mak/Makefile.preconfig [BLD={type}]
   
   Prepare configuration scripts of packages, particularly from source control
  -where autoconf etc have not been invoked yet.
  +where autoconf etc have not been invoked yet. Release and candidate source
  +packages are already distributed with this step completed.
   
   This makefile is run after `Makefile.gather` from the source directory root,
   and must be performed following updates to the source packages as indicated
  
positive.code:     {httpd-pkg}{tag}/    Temporary installation for testing and relocation
  
   pkg/                    Final binary package
      \{httpd-pkg}\{tag}/    Relocateable binaries for distribution
  
  The structure above can be problematic for running many
  different builds in parallel. Specifically, the configured
  
negative.code: 
  The build target is `/opt/pivotal/webserver/httpd-2.4/`
  on Linux and Windows, but is relocatable. Each has a
  longer pathname, e.g. `httpd-2.4.33\{-bldno}/` which is
  symlinked from the 'expected' path. Non-release builds
  have additional pathname components such as `-snapshot`,
  `-bleed`, etc, and may have a TAG to distinguish two
  