CMake build system

cmake/libraries/sdl.cmake

@@ -0,0 +1,51 @@
+set(INTERNAL_SDL_DIR ${SOURCE_DIR}/thirdparty/SDL2-2.32.8)
+
+include(utils/arch)
+
+if(NOT WIN32 AND NOT APPLE)
+    set(SYSTEM_SDL_REQUIRED REQUIRED)
+endif()
+
+find_package(SDL2 QUIET ${SYSTEM_SDL_REQUIRED})
+
+if(NOT SDL2_FOUND)
+    set(SDL2_INCLUDE_DIRS ${INTERNAL_SDL_DIR}/include)
+
+    # On Windows and macOS we have internal SDL binaries we can use
+    if(WIN32)
+        if(ARCH STREQUAL "x86_64")
+            set(LIB_DIR ${SOURCE_DIR}/thirdparty/libs/win64)
+        elseif(ARCH STREQUAL "x86")
+            set(LIB_DIR ${SOURCE_DIR}/thirdparty/libs/win32)
+        else()
+            message(FATAL_ERROR "Unknown ARCH")
+        endif()
+
+        if(MINGW)
+            set(SDL2_LIBRARIES
+                ${LIB_DIR}/libSDL2main.a
+                ${LIB_DIR}/libSDL2.dll.a)
+        elseif(MSVC)
+            set(SDL2_LIBRARIES
+                ${LIB_DIR}/SDL2main.lib
+                ${LIB_DIR}/SDL2.lib)
+        endif()
+
+        list(APPEND CLIENT_DEPLOY_LIBRARIES ${LIB_DIR}/SDL2.dll)
+    elseif(APPLE)
+        set(SDL2_LIBRARIES
+            ${SOURCE_DIR}/thirdparty/libs/macos/libSDL2main.a
+            ${SOURCE_DIR}/thirdparty/libs/macos/libSDL2-2.0.0.dylib)
+        list(APPEND CLIENT_DEPLOY_LIBRARIES
+            ${SOURCE_DIR}/thirdparty/libs/macos/libSDL2-2.0.0.dylib)
+    else()
+        message(FATAL_ERROR "SDL2 not found and no internal binaries available")
+    endif()
+endif()
+
+list(APPEND CLIENT_LIBRARIES ${SDL2_LIBRARIES})
+list(APPEND CLIENT_INCLUDE_DIRS ${SDL2_INCLUDE_DIRS})
+list(APPEND CLIENT_COMPILE_OPTIONS ${SDL2_CFLAGS_OTHER})
+list(APPEND RENDERER_LIBRARIES ${SDL2_LIBRARIES})
+list(APPEND RENDERER_INCLUDE_DIRS ${SDL2_INCLUDE_DIRS})
+list(APPEND RENDERER_COMPILE_OPTIONS ${SDL2_CFLAGS_OTHER})