- reduces unexpected interactions between various make elements

- The dirToString -strip option is simple, but reduces effort for the caller.

- also add some comments about the side-effects

- For convenience, let "wmake some/path/filename.C"
  behave similar to    "wmake some/path"
  and trace back for the Make directory.

Eg,
    librunTimePostProcessing.so
    librunTimePostProcessing.so.7 -> librunTimePostProcessing.so.7.1.0
    librunTimePostProcessing.so.7.1.0

- centralize handling of paraview/vtk versioning into wmake/cmakeFunctions

Examples,

    wmakePrintBuild -plus

Check if value is known
(ie, everything configured and also OpenFOAM+):

    if wmakePrintBuild -plus >/dev/null 2>&1
    then
        echo YES
    else
        echo NO
    fi

Check if version is new enough

    if ofver=$(wmakePrintBuild -plus 2>/dev/null) && [ "$ofver" -ge 1612 ]
    then
        echo YES
    else
        echo NO
    fi

Conditionals

    ofver=$(wmakePrintBuild -plus 2>/dev/null)
    case "${ofver:=0}" in
    1612)
        echo "something for 1612
        ;;
    1706)
        echo "something for 1706
        ;;
    esac

- use "-pvMAJ.MIN" suffix for similarity with the paraview convention

- use sentinel file to ensure clean change of intermediate targets

- ensure all library files are being properly removed

- Could be related to interrupted builds.
  So if there are any parts of the build that rely on an explicit
  'wmakeLnInclude', make sure that the contents are properly updated.

--

ENH: improved feedback from top-level Allwmake

- Report which section (libraries, applications) is being built.

- Provide final summary of date, version, etc, which can be helpful
  for later diagnosis or record keeping.

- The -log=XXX option for Allwmake now accepts a directory name
  and automatically appends an appropriate log name.
  Eg,
      ./Allwmake -log=logs/  ->> logs/log.linux64GccDPInt32Opt

  The default name is built from the value of WM_OPTIONS.

--

BUG: shell not exiting properly in combination with -log option

- the use of 'tee' causes the shell to hang around.
  Added an explicit exit to catch this.

--

- Detecting the '-k' (-non-stop) option at the top-level Allwmake, which
  may improve robustness.

- Explicit continue-on-error for foamyMesh (as optional component)

- unify format of script messages for better readability

COMP: reduce warnings when building Pstream (old-style casts in openmpi)

- now defaults to 'log.$WM_OPTIONS' (eg, log.linux64GccDPInt32Opt)
  for more clarity and fewer potential name clashes when building
  multiple versions.

- helpful when testing various builds

- slightly odd. Building CGAL on other Linux systems have a proper
  ldd dependency for gmp/mpfr, but ubuntu doesn't

- now that adios_config flags are largely working in ThirdParty

- support gperftools-none, gperftools-system configurations
  as per other third-party packages.

STYLE: clean up more environment variables

CONFIG: testing adios rule

- these directories are sometimes used for a central, non-thirdparty, non-system
  installation

- leave gmp and mpfr as is, since it is not clear how these would interact with system
  versions

when Allwmake is called from wmake -all

Avoids a lot of unnecessary clutter in the compilation log.

Changed 'ld' line to include path of target library or executable.

'set -x' should be used for debugging.

Added command printing into wmake and Allwmake as a replacement for
'set -x' to log current target.

Based on patch contributed by Alexey Matveichev
Resolves feature request http://bugs.openfoam.org/view.php?id=2328

On 64-bit systems, the system installations of boost, cgal are under
lib64/. The behaviour for a ThirdParty build is mostly lib/ but this
can also be changing.

    Boost 1_62_0 and older build into 'lib/'.
    CGAL-4.9 builds into 'lib64/', older versions into 'lib/'.

Future-proof things by using lib$WM_COMPILER_LIB_ARCH for boost and
cgal build rules, and forcing these as build targets in the ThirdParty
makeCGAL as well.

--
STYLE: check for boost/version.hpp, CGAL/version.h instead their directories

Resolves bug-report http://bugs.openfoam.org/view.php?id=2283

- CGAL itself includes its library dependencies, we only need to
  provide the -L... option to the proper ThirdParty locations.

  Should help improve general build robustness.

- 64-bit builds of gcc/mpfr/gmp use lib64/ for their installation path.
  Use this for the wmake rules as well.

Patch contributed by Bruno Santos
Resolves bug-report http://bugs.openfoam.org/view.php?id=2218

Patch contributed by Paul Edwards, Intel.