cmake: find python using FindPython3

CMake/Python.cmake

@@ -1,23 +1,9 @@
-# Check if Python vars have been set in CLI
-
-message(STATUS "Checking if Python paths have been set...")
-
-if (NOT DEFINED PYTHON_INCLUDE_DIR)
-	message(FATAL_ERROR "Please provide Python include directory as CMake argument! Usage: -DPYTHON_INCLUDE_DIR=/path/to/python/include")
-else()
-	message(STATUS "PYTHON_INCLUDE_DIR=${PYTHON_INCLUDE_DIR}")
-endif()
-
-if (NOT DEFINED PYTHON_LIB_DIR)
-	message(FATAL_ERROR "Please provide Python lib directory as CMake argument! Usage: -DPYTHON_LIB_DIR=/path/to/python/lib")
-else()
-	message(STATUS "PYTHON_LIB_DIR=${PYTHON_LIB_DIR}")
-endif()
-
-if (NOT DEFINED PYTHON_LIB)
-	message(FATAL_ERROR "Please provide Python library as CMake argument! Usage -DPYTHON_LIB=python3.11")
-else()
-	message(STATUS "PYTHON_LIB=${PYTHON_LIB}")
-endif()
-
-message(STATUS "Python OK!")
+# Check if Python environment variables have been set
+
+find_package(Python3 COMPONENTS Interpreter Development)
+
+if (NOT DEFINED Python3_Development_FOUND)
+	message(FATAL_ERROR "Please make sure Python3 (including development artifacts) installed correctly on your system!")
+else()
+	message(STATUS "Linking Python ${Python3_VERSION}")
+endif()

CMakeLists.txt

@@ -5,13 +5,13 @@ set(BUILD_DIR ${CMAKE_CURRENT_BINARY_DIR})
 set(EXTERN_DIR ${ROOT_DIR}/Extern)
 set(SCRIPTS_DIR ${ROOT_DIR}/CMake)
 set(SAMPLE_PLUGINS_DIR ${ROOT_DIR}/Samples)
-include("${SCRIPTS_DIR}/Python.cmake")
 
 set(CMAKE_CXX_STANDARD 17)
 set(CMAKE_CXX_STANDARD_REQUIRED true)
 
 project(Source2Py LANGUAGES CXX)
 
+include("${SCRIPTS_DIR}/Python.cmake")
 include("${SCRIPTS_DIR}/Source2SDK.cmake")
 include("${SCRIPTS_DIR}/Metamod.cmake")
 
@@ -25,15 +25,12 @@ target_include_directories(Source2Py PRIVATE
 	${SOURCE2SDK_INCLUDE_DIRS}
 	${METAMOD_INCLUDE_DIRS}
 	${EXTERN_DIR}/pybind11/include
-	${PYTHON_INCLUDE_DIR}
-)
-target_link_directories(Source2Py PRIVATE
-	${PYTHON_LIB_DIR}
+	${Python3_INCLUDE_DIRS}
 )
 target_link_libraries(Source2Py PRIVATE
 	Source2SDK
 	Metamod
-	${PYTHON_LIB}
+	${Python3_LIBRARIES}
 )
 set_target_properties(Source2Py PROPERTIES
 	OUTPUT_NAME "Source2Py"