Improved CMakeLists files.

CMakeLists.txt

@@ -8,11 +8,11 @@ include (${CMAKE_CURRENT_LIST_DIR}/_cmake/common_options.cmake)
 
 # Add executable (sources are added later, depending on frontend/backend)
 add_executable(${PROJECT_NAME})
-set_common_options(${PROJECT_NAME})
+target_link_libraries(${PROJECT_NAME} PUBLIC core-target)
 
 set(PREJS_FILE ${CMAKE_SOURCE_DIR}/frontend/source/frontend/js/module.js)
 
-if (EMSCRIPTEN)  
+if (EMSCRIPTEN)
     add_subdirectory(${CMAKE_SOURCE_DIR}/frontend/source/frontend)
 else()
 	add_subdirectory(${CMAKE_SOURCE_DIR}/backend/source/backend)

_cmake/common_options.cmake

@@ -1,12 +1,10 @@
-function(set_common_options TARGET)
-    if (${MSVC})
-        set(WARNINGS -Wmost)
-    else()
-        set(WARNINGS -Wall -Wextra -Wpedantic)
-    endif()
-    set(COMMON_OPTIONS ${WARNINGS} -fexceptions -pedantic -fconstexpr-steps=1271242)
-    set(DEBUG_OPTIONS  -g ${COMMON_OPTIONS})
-    set(RELEASE_OPTIONS -O3 ${COMMON_OPTIONS})
-    target_compile_options(${TARGET} PUBLIC "$<$<CONFIG:DEBUG>:${DEBUG_OPTIONS}>")
-    target_compile_options(${TARGET} PUBLIC "$<$<CONFIG:RELEASE>:${RELEASE_OPTIONS}>")
-endfunction()
+add_library(core-target INTERFACE)
+
+if (${MSVC})
+    target_compile_options(core-target INTERFACE -Wmost)
+else()
+    target_compile_options(core-target INTERFACE -Wall -Wextra -Wpedantic)
+endif()
+target_compile_options(core-target INTERFACE -fexceptions -pedantic $<$<CONFIG:DEBUG>:-g;-Werror=return-type> $<$<CONFIG:RELEASE>:-O3>)
+target_link_options(core-target INTERFACE $<$<CONFIG:RELEASE>:-s;-static-libgcc;-static-libstdc++>)
+target_compile_features(core-target INTERFACE cxx_std_20)