Do not overwrite NETGEN_VERSION that might be cached. Use a new variable instead, NETGEN_VERSION_C.
Use cmake internal system to specify std=c++14, else you can end up with `c++ -DFOO -std=c++14 -Ibar -std=c++11`, and the latter is used.
Netgen provided cmake file, and the internal detection, had different casing
for the _FOUND variable
When detecting the Netgen include-directories, we only want the /include in
addition to the global one. To include a given header file, specify which
part of the library, or use the one from the project/include directory.
Upstream changed:
https://sourceforge.net/p/netgen-mesher/git/ci/7e4892a
There is also a pending request to fix NETGEN build, installation and version detection after 6.1:
https://sourceforge.net/p/netgen-mesher/git/merge-requests/1/
Just a note:
NETGEN development happens on https://gitlab.asc.tuwien.ac.at/jschoeberl/netgen but it is a very hard/strange way to find that out and get in contact with NETGEN developers as well as getting permission to fork the repository there to create a pull request.
Maybe some other developer can get in contact with NETGEN developers ...
* New 'UseLibPack' cmake file sets CMAKE_PREFIX_PATH so that find_package
can be used for most packages.
* Mimic fc_wrap_cpp defined in other 'UseLibPack' files. Some file
dependencies did not get set correctly otherwise.
* OCE 0.16 does not have Standard_ctype.hxx
* shfolder.h can't be used with Win SDK 7.0
