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
- replace with an alternative workaround.
Unset the _foamAddLib function prior to sourcing config.sh/CGAL:
- LD_LIBRARY_PATH will not be adjusted.
- cgal_version/boost_version variables will be retained.
Note: for ThirdParty builds, it is important that the boost and CGAL
paths are added into LD_LIBRARY_PATH even if before they are created.
This ensures that the OpenFOAM environment is functional after the
build.
The '*-none' and '*-system' specifications can still be used to avoid
setting them at all.
etc/config.sh and etc/config.csh
This structure is more convenient to add support for other shells, e.g. zsh, fish etc.
Resolves feature request to simplify support for other shells in
http://www.openfoam.org/mantisbt/view.php?id=1232
