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CMake: Major cleanup to support find_package(raylib)

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Remove that link_libraries_to_executable() hack and defines a proper
raylib target that can be used with target_link_libraries.

The same target is also available for external (user) code by using
find_package(raylib).

This results in:

- Remove hardcoded build directories from examples and games CMakeLists.txt
- Allow rlgl_standalone and other special examples to be built easily
- Allow CMake projects to find_package(raylib instead of fiddling with pkg-config
- Makes code a little more maintainable
- Fixes #471, #606.
- Makes code less confusing by removing the double use of PLATFORM (#584).

Note that this is still not _The Right Way_(TM), because normally
raylib-config.cmake (or its includes) would be automatically generated.
I didn't manage to get that to work though, so I went the easier route
of just wrapping pkg_check_modules for consumption by find_package.
This commit is contained in:
Ahmad Fatoum 2018-07-28 16:08:41 +02:00
parent 3e5093eab0
commit 3f09726331
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17 changed files with 321 additions and 264 deletions
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CMakeLists.txt
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@ -6,7 +6,7 @@ option(BUILD_EXAMPLES "Build the examples." ON)
option(BUILD_GAMES "Build the example games." ON)
option(ENABLE_ASAN "Enable AddressSanitizer (ASAN) for debugging (degrades performance)" OFF)
option(ENABLE_UBSAN "Enable UndefinedBehaviorSanitizer (UBSan) for debugging" OFF)
option(ENABLE_MSAN "Enable MemorySanitizer (MSan) for debugging (not recommended for run with ASAN)" OFF)
option(ENABLE_MSAN "Enable MemorySanitizer (MSan) for debugging (not recommended to run with ASAN)" OFF)
if(CMAKE_VERSION VERSION_LESS "3.1")
if(CMAKE_C_COMPILER_ID STREQUAL "GNU")