Bugfix/cmake

[jwsblokland]

Hello Mathis,

Here at Shell we make use of the HDF5 to store large files. A colleague of mine came across your libaec library and mentioned it a drop-in replacement of the Szip compression library in HDF5. To make this drop-in replacement more smooth, I made several improvements regarding the cmake files for building the libaec library:

• Building shared and static library in one go,
• The both shared and static version szip library contains all required objects,
• Rewritten the generation of the cmake config file:
  • Option to select either the shared or static library,
  • Introduce libaec variables which can be use in cmake,
  • Introduce szip variables which can be used in cmake.

With these changes in place, I could easily build HDF5 library from scratch with the option to include either the shared or static szip library provided by your libaec library. For the static version I needed to make a little modification the HDF5 CMakeFilters.cmake file which I upload to HDF group once this pull request has been approved.

Best regards, Jan-Willem

[MathisRosenhauer]

Hello Jan-Willem,

I'm not totally comfortable with just ignoring BUILD_SHARED_LIBS but I guess there is no better way. I will make a new release once your HDF5 changes are accepted.

Cheers, Mathis