The name of the find module was changed to match the name used by
the reference implementation of Vorbis. Likely the target names were
taken from what the reference implementation names those targets.
This is a lighitly modified copy of CMake 3.27.4's FindOpenAL.cmake
module. This gives us access to the OpenAL::OpenAL target which was
not added until CMake 3.25.
My goal is to reduce our need on sfml_find_package until it can
finally be removed. It's preferred to simply use find_package to
find 3rd party projects.
I had to add IMPORTED targets to some of our find modules so that
we could get away from using INTERFACE libraries for external code.
That also implied that our find moduels need to be installed so that
users have access to them when processing SFML's config module.
Ported sfml-pi DRM/KMS backend written by @mickelson
Port co-authored by @substring
Co-authored-by: Andrew Mickelson <andrew.mickelson@gmail.com>
Co-authored-by: Gil Delescluse <frog2wah@gmail.com>
This commit fixes the FindXCB.cmake module for the case no components
are requested. The previous version assigned `XCB_FIND_COMPONENTS`
list to an empty variable name.
I was lucky enough to catch the bug in a corner case where both
`XCB_COMPONENTS` and `XCB_FIND_COMPONENTS` were empty and `set()`
command failed, but note this awesome CMake language supports more annoying
corner cases like `XCB_COMPONENTS` empty and `XCB_FIND_COMPONENTS`
with two elements, which results in the following `set()` invocation:
``` cmake
set(${XCB_FIND_COMPONENTS[0]} ${XCB_FIND_COMPONENTS[1]})
```
So always beware of CMake secret charms...
Environment variables (e.g. PATH on Windows) are looked up early by CMake, and libraries found there are prioritized over those in SFML's own folder. To avoid paths to wrong libraries, this commit modifies the CMake find_library() call, such that environment variables are no longer considered as suitable paths.
* Added FindXCB.cmake script
* Added AutoPointer wrapper for automatically free'ing pointers
* Huge commit: Ported linux implementation of sfml-window to xcb
* Xcb is now used for window creation, event loop etc
* As GLX is linked to Xlib, that part of the implementation
still uses Xlib.
* Also, some keyboard related (such as XLookupString) stuff
is still Xlib, as xcb does not have it (yet?).
* Replaced some enums with the xcb equivalents
