some cleanup

Firmware/sdk/CMakeLists.txt

@@ -5,35 +5,39 @@ set(CMAKE_CXX_STANDARD 20)
 set(CMAKE_CXX_STANDARD_REQUIRED YES)
 set(CMAKE_CXX_EXTENSIONS NO)
 
-add_library(cardboy_sdk STATIC
-        src/app_system.cpp
-)
+add_library(cardboy_sdk INTERFACE)
 
 target_include_directories(cardboy_sdk
-        PUBLIC
+        INTERFACE
         ${CMAKE_CURRENT_SOURCE_DIR}/include
 )
 
-target_compile_features(cardboy_sdk PUBLIC cxx_std_20)
+target_compile_features(cardboy_sdk INTERFACE cxx_std_20)
 
-add_library(cardboy_apps STATIC
-        apps/menu_app.cpp
-        apps/clock_app.cpp
-        apps/tetris_app.cpp
-        apps/gameboy_app.cpp
+target_sources(cardboy_sdk
+        INTERFACE
+        ${CMAKE_CURRENT_SOURCE_DIR}/src/app_system.cpp
 )
 
+add_library(cardboy_apps INTERFACE)
+
 target_include_directories(cardboy_apps
-        PUBLIC
+        INTERFACE
         ${CMAKE_CURRENT_SOURCE_DIR}/include
 )
 
 target_link_libraries(cardboy_apps
-        PUBLIC
+        INTERFACE
         cardboy_sdk
 )
 
-target_compile_features(cardboy_apps PUBLIC cxx_std_20)
+target_sources(cardboy_apps
+        INTERFACE
+        ${CMAKE_CURRENT_SOURCE_DIR}/apps/menu_app.cpp
+        ${CMAKE_CURRENT_SOURCE_DIR}/apps/clock_app.cpp
+        ${CMAKE_CURRENT_SOURCE_DIR}/apps/tetris_app.cpp
+        ${CMAKE_CURRENT_SOURCE_DIR}/apps/gameboy_app.cpp
+)
 
 option(CARDBOY_BUILD_SFML "Build SFML harness" OFF)
 
@@ -66,5 +70,16 @@ if (CARDBOY_BUILD_SFML)
             SFML::System
     )
 
+    target_include_directories(cardboy_desktop
+            PRIVATE
+            ${CMAKE_CURRENT_SOURCE_DIR}/hosts/include
+    )
+
+    target_compile_definitions(cardboy_desktop
+            PRIVATE
+            CARDBOY_SDK_BACKEND_HEADER=\"cardboy/backend/desktop_backend.hpp\"
+            CARDBOY_SDK_ACTIVE_BACKEND_TYPE=cardboy::backend::DesktopBackend
+    )
+
     target_compile_features(cardboy_desktop PRIVATE cxx_std_20)
 endif ()