Similar to the change done in Corrade, see the commit for details:
878624ac36
Wow, this is probably the most backwards-compatibility code I've ever
written. Can't wait until I can drop all that.
It limits the support for CMake 3.12+, but it's much less verbose and I
don't expect people to use ancient CMake versions with IDEs like Xcode
or VS anyway, so this should be fine.
This makes it possible to:
- finally use Magnum as a CMake subproject on Windows and have your
executables not fail to run with a "DLL missing" error (and the
setting is put to cache so superprojects just implicitly make use of
that)
- run tests on Windows without having to install first
- use dynamic plugins from a CMake subproject on any platform without
having to install first or load them by filename --- and the plugin
directory is now easily discovered as relative to
libraryLocation() of the library implementing given plugin interface
As with Corrade, this is not exactly backwards compatible, but for
common use case without OBJECT libraries this should not be a problem.
In any case, recreate the build dir and update your copy of all
Find*.cmake modules to avoid weird things happening.
User-facing changes:
* Documentation of all Find*.cmake modules converted to
reStructuredText to follow official CMake guidelines.
* The newfangled way to use the libraries is to link to Magnum::Shaders
instead of adding ${MAGNUM_SHADERS_INCLUDE_DIRS} to include path and
linking to ${MAGNUM_SHADERS_LIBRARIES}.
* The old ${MAGNUM_*_LIBRARIES} are deprecated and now just expand to
Magnum::* target. Use the target directly. These are also enabled
only when building with MAGNUM_BUILD_DEPRECATED.
* The old ${MAGNUM_*_INCLUDE_DIRS} are removed as the Magnum::* targets
cover these too.
Internal changes:
* Global state such as include_directories() was replaced with
target-specific settings.
The camera now accepts generic projection matrix instead of providing
functions for setting orthographic/perspective projection. This allowed
to completely get rid of the AbstractCamera->Camera*D inheritance
hierarchy and everything is now done through one templated Camera class.
The Camera2D::setProjection(), Camera3D::setOrthographic() and
Camera3D::setPerspective() are deprecated, use
Camera*D::setProjectionMatrix() in combination with
Matrix3::projection(), Matrix4::orthographicProjection() and
Matrix4::perspectiveProjection() instead.
The Camera3D::near() and Camera3D::far() getters are removed. The user
is advised to cache the values on application side if they are really
needed. More general queries for all six clipping planes (*not*
distance) might be implemented later.
The AbstractCamera, AbstractBasicCamera2D, AbstractBaseicCamera3D,
AbstractCamera2D and AbstractCamera3D types are deprecated as there is
no such type anymore, use Camera, BasicCamera2D, BasicCamera3D, Camera2D
and Camera3D instead.
The AbstractCamera.h, AbstractCamera.hpp, Camera2D.h, Camera2D.hpp,
Camera3D.h and Camera3D.hpp headers are deprecated, use Camera.h and
Camera.hpp instead.
As always, all deprecated features will be removed in some future
release.
New in 2.8.9, much cleaner than the previous "solution". Also cleaned up
the surroundings a bit. Fixed cases where PIC was forced independently
of the settings, for plugins the PIC is now also set only when
needed/requested.
Makes it possible to have both debug and release libraries installed. If
both libraries are present when finding the package, proper version is
used based on what configuration is used in depending project.
As we are now using absolute includes, there is no need to prefix
everything with "magnum<Namespace>" etc. All generated configuration
files are renamed to configure.h and their path is included _before_
everything else to avoid accidental collisions.
Everything what was in src/ is now in src/Corrade, everything from
src/Plugins is now in src/MagnumPlugins, everything from external/ is in
src/MagnumExternal. Added new CMakeLists.txt file and updated the other
ones for the moves, no other change was made. If MAGNUM_BUILD_DEPRECATED
is set, everything compiles and installs like previously except for the
plugins, which are now in MagnumPlugins and not in Magnum/Plugins.
Moved almost everything into one file, instead of compiling ~50k LOC
seven times it is now compiling 56k LOC only once. This saves another ~5
seconds of compilation time (before ~4:11, now ~4:06).
Also explicitly saying that we are instantiating Float version of all
classes. In the future we might have compile switch for building also
Double one, this helps with consistency.
Constructor, destructor and all virtual functions are moved into
implementation file, so they don't need to be recreated and add into
binary on every usage. Should save a bit on resulting file size.
Created less-templated base for FeatureGroup and moved its
implementation into *.hpp file, allowing to remove <algorithm> header
from FeatureGroup.h (and meanwhile removing forgotten one also from
AbstractGroupedFeature.h). Saved another ~10 seconds of compilation time
(previously ~4:21, now ~4:11).
* Calling enable_testing() only in root path.
* Using CORRADE_CXX_FLAGS instead of our own set to make things easier
to maintain.
* Various cleanup and reorganization.
Vladimír Vondruš