Now that we are specifying the config at build time, the hack to re-write CMAKE_CXX_FLAGS[_DEBUG] flags is no longer needed.

Refactor HOT_RELOAD to use generator expressions
Turn on WINDOWS_ENABLED based on WIN32, not IS_MSVC
Refactor SYSTEM_NAME and BUILD_TYPE to use generator expressions

CMAKE_BUILD_TYPE is no longer depended upon, eliminating config errors for multi-config builds like Visual Studio, and Ninja-MultiConfig

Author: enetheru

CMakeLists.txt

@@ -4,16 +4,6 @@ project(godot-cpp LANGUAGES CXX)
 # Get Python
 find_package(Python3 3.4 REQUIRED) # pathlib should be present
 
-# Configure CMake
-# https://discourse.cmake.org/t/how-do-i-remove-compile-options-from-target/5965
-# https://stackoverflow.com/questions/74426638/how-to-remove-rtc1-from-specific-target-or-file-in-cmake
-if(${CMAKE_CXX_COMPILER_ID} STREQUAL MSVC)
-    if(NOT CMAKE_BUILD_TYPE MATCHES Debug)
-        STRING(REGEX REPLACE "/RTC(su|[1su])" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
-        string(REPLACE "/RTC1" "" CMAKE_CXX_FLAGS_DEBUG ${CMAKE_CXX_FLAGS_DEBUG})
-    endif ()
-endif ()
-
 if( CMAKE_C_COMPILER)
     #Silence warning from unused CMAKE_C_COMPILER from toolchain
 endif ()

cmake/common_compiler_flags.cmake

@@ -10,7 +10,12 @@ set( GNU_LT_V11 "$<VERSION_LESS:$<CXX_COMPILER_VERSION>,11>" )
 set( GNU_GE_V12 "$<VERSION_GREATER_EQUAL:$<CXX_COMPILER_VERSION>,12>" )
 
 set( WARNING_AS_ERROR "$<BOOL:${GODOT_WARNING_AS_ERROR}>")
-set( HOT_RELOAD "$<BOOL:${GODOT_USE_HOT_RELOAD}>")
+
+set( NOT_RELEASE "$<NOT:$<CONFIG:Release>>")
+
+set( HOT_RELOAD-UNSET "$<STREQUAL:${GODOT_USE_HOT_RELOAD},>")
+set( HOT_RELOAD "$<IF:${HOT_RELOAD-UNSET},${NOT_RELEASE},$<BOOL:${GODOT_USE_HOT_RELOAD}>>" )
+
 set( DISABLE_EXCEPTIONS "$<BOOL:${GODOT_DISABLE_EXCEPTIONS}>")
 
 target_compile_features(${PROJECT_NAME}
@@ -101,8 +106,9 @@ target_compile_definitions(${PROJECT_NAME}
         PUBLIC
         GDEXTENSION
 
+        $<$<BOOL:${WIN32}>:WINDOWS_ENABLED>
+
         $<${IS_MSVC}:
-            WINDOWS_ENABLED
             TYPED_METHOD_BIND
             NOMINMAX
             $<${DISABLE_EXCEPTIONS}:_HAS_EXCEPTIONS=0>

cmake/godotcpp.cmake

@@ -66,16 +66,6 @@ function( godotcpp_generate )
         set( GODOT_SYMBOL_VISIBILITY "default" )
     endif ()
 
-    # Default build type is Debug in the SConstruct
-    if("${CMAKE_BUILD_TYPE}" STREQUAL "")
-        set(CMAKE_BUILD_TYPE Debug)
-    endif()
-
-    # Hot reload is enabled by default in Debug-builds
-    if( GODOT_USE_HOT_RELOAD STREQUAL "" AND NOT CMAKE_BUILD_TYPE STREQUAL "Release")
-        set(GODOT_USE_HOT_RELOAD ON)
-    endif()
-
     ### Generate Bindings
     if(NOT DEFINED BITS)
         set(BITS 32)
@@ -145,10 +135,9 @@ function( godotcpp_generate )
 
     include(${PROJECT_SOURCE_DIR}/cmake/common_compiler_flags.cmake)
 
-
     ### Create the correct name (godot.os.build_type.system_bits)
-    string(TOLOWER "${CMAKE_SYSTEM_NAME}" SYSTEM_NAME)
-    string(TOLOWER "${CMAKE_BUILD_TYPE}" BUILD_TYPE)
+    set( SYSTEM_NAME "$<LOWER_CASE:${CMAKE_SYSTEM_NAME}>" )
+    set( BUILD_TYPE "$<LOWER_CASE:$<CONFIG>>" )
 
     if(ANDROID)
         # Added the android abi after system name