Link SDL2

CMakeLists.txt

@@ -1,5 +1,7 @@
 cmake_minimum_required(VERSION 3.13)
 
+set(CMAKE_POLICY_DEFAULT_CMP0077 NEW)
+
 project(fallout2-ce LANGUAGES C)
 
 add_executable(fallout2-ce WIN32
@@ -237,3 +239,4 @@ target_link_libraries(fallout2-ce
 
 add_subdirectory("third_party/fpattern")
 add_subdirectory("third_party/zlib")
+add_subdirectory("third_party/sdl2")

third_party/sdl2/CMakeLists.txt

@@ -0,0 +1,23 @@
+# Build static lib only
+set(BUILD_SHARED_LIBS OFF)
+set(SDL_SHARED OFF)
+set(SDL_STATIC ON)
+
+# Fixes _ftol2_sse already defined
+set(SDL_LIBC ON)
+
+include(FetchContent)
+
+FetchContent_Declare(sdl2
+    GIT_REPOSITORY "https://github.com/libsdl-org/SDL"
+    GIT_TAG "release-2.0.22"
+)
+
+FetchContent_GetProperties(sdl2)
+if (NOT sdl2_POPULATED)
+    FetchContent_Populate(sdl2)
+endif()
+
+add_subdirectory(${sdl2_SOURCE_DIR} ${sdl2_BINARY_DIR} EXCLUDE_FROM_ALL)
+target_include_directories(fallout2-ce PUBLIC ${sdl2_SOURCE_DIR} ${sdl2_BINARY_DIR})
+target_link_libraries(fallout2-ce SDL2-static)