We currently use CMake 3.16 for compatibility with Ubuntu 18.04 LTS.
The `NAME_MISMATCHED` argument which turns off a CMake warning
when using `FIND_PACKAGE_HANDLE_STANDARD_ARGS`, is not available
in CMake 3.16 and can prevent a successful build.
See
https://github.com/colobot/colobot/pull/1478#issuecomment-986204233
Make them export targets instead of variables.
Some platforms need libintl, abstract it to a Find*.cmake module.
Static linking requires linking to dependencies of dependencies (it is
as horrific as it sounds). This commit handles this only for libsndfile.
SDL2_image and SDL2_ttf probably also have some hidden dependencies.
FindGLEW module is now bundled with CMake, hence it is deleted.
Added Copyright.txt since some modules are taken from CMake.
* removed -mod argument
* removed -datadir argument
* removed -lang argument
* removed some dead ui code
* added resource manager and file loaders (stream and SDL)
* changed interface textures location to match new directory structure
* removed CGameData for mod support
* added PhysFS support
* localename library is now used to determine the actual locale used
* added patched version of FindGettext.cmake to fix
installation path of translation files
* changed win32 implementation to QueryPerformaceTimer system function
* refactored system utils code
* proper tests for time utils and update event creation in application
* should fix issue #134
- added support for cross-compiling with MXE (http://mxe.cc/)
- refactored CMake files, adding some options and moving definitions
to more suitable places
MrSimbax