CMake: Directly link to SDL2-static when appropriate

Trying to be lazy and alias SDL2 to SDL2-static causes issues in later
versions of CMake. Just use the same condition to tell which one to use.

externals/CMakeLists.txt

@@ -69,7 +69,6 @@ if (YUZU_USE_EXTERNAL_SDL2)
     set(SDL_SHARED OFF)
 
     add_subdirectory(SDL EXCLUDE_FROM_ALL)
-    add_library(SDL2 ALIAS SDL2-static)
 endif()
 
 # ENet

src/audio_core/CMakeLists.txt

@@ -226,6 +226,10 @@ if(ENABLE_CUBEB)
     target_compile_definitions(audio_core PRIVATE -DHAVE_CUBEB=1)
 endif()
 if(ENABLE_SDL2)
+    if (YUZU_USE_EXTERNAL_SDL2)
+        target_link_libraries(audio_core PRIVATE SDL2-static)
+    else()
         target_link_libraries(audio_core PRIVATE SDL2)
+    endif()
     target_compile_definitions(audio_core PRIVATE HAVE_SDL2)
 endif()

src/input_common/CMakeLists.txt

@@ -55,7 +55,11 @@ if (ENABLE_SDL2)
         drivers/sdl_driver.cpp
         drivers/sdl_driver.h
     )
+    if (YUZU_USE_EXTERNAL_SDL2)
+        target_link_libraries(input_common PRIVATE SDL2-static)
+    else()
         target_link_libraries(input_common PRIVATE SDL2)
+    endif()
     target_compile_definitions(input_common PRIVATE HAVE_SDL2)
 endif()
 

src/yuzu/CMakeLists.txt

@@ -387,7 +387,11 @@ if (YUZU_USE_BUNDLED_QT AND QT_VERSION VERSION_LESS 6)
 endif()
 
 if (ENABLE_SDL2)
+    if (YUZU_USE_EXTERNAL_SDL2)
+        target_link_libraries(yuzu PRIVATE SDL2-static)
+    else()
         target_link_libraries(yuzu PRIVATE SDL2)
+    endif()
     target_compile_definitions(yuzu PRIVATE HAVE_SDL2)
 endif()