CMakeLists: merge changes from PyWinRT

Various fixes and improvements.

Author: dlech

CMakeLists.txt

@@ -1,12 +1,9 @@
-cmake_minimum_required(VERSION 3.16)
-project(winsdk)
+cmake_minimum_required(VERSION 3.24)
+cmake_policy(SET CMP0091 NEW)
+project(winsdk LANGUAGES CXX)
 
 file(GLOB sources "${CMAKE_CURRENT_SOURCE_DIR}/pywinrt/${CMAKE_PROJECT_NAME}/src/*.cpp")
 
-file(GLOB headers RELATIVE "${CMAKE_CURRENT_SOURCE_DIR}"
-    "pywinrt/${CMAKE_PROJECT_NAME}/src/py.*.h"
-)
-
 set(CMAKE_CXX_STANDARD 20)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
 set(CMAKE_MSVC_RUNTIME_LIBRARY "MultiThreaded$<$<CONFIG:Debug>:Debug>")
@@ -24,6 +21,12 @@ if (MSVC)
     endif()
 else()
     add_compile_options(-Werror)
+
+    if (MINGW)
+        add_definitions(-D_WIN32_WINNT=_WIN32_WINNT_WIN10)
+        # fixes "file too big"
+        add_compile_options(-Wa,-mbig-obj)   
+    endif()
 endif()
 
 find_package(Python3 REQUIRED COMPONENTS Development.Module)
@@ -32,13 +35,17 @@ Python3_add_library (_winrt MODULE ${sources})
 set_target_properties(_winrt PROPERTIES LIBRARY_OUTPUT_NAME_DEBUG _winrt_d)
 target_precompile_headers(_winrt PRIVATE ${headers})
 target_include_directories(_winrt PUBLIC "${CMAKE_CURRENT_SOURCE_DIR}/cppwinrt" "${CMAKE_CURRENT_SOURCE_DIR}/pywinrt/${CMAKE_PROJECT_NAME}/src")
-target_link_libraries(_winrt PRIVATE onecore)
 
-if($ENV{CI})
-    # CI has limited resources (runs out of heap space), so we limit the number
-    # of concurrent processes to combat this
-    set_property(GLOBAL PROPERTY JOB_POOLS compile_job=2)
-    set_property(TARGET _winrt PROPERTY JOB_POOL_COMPILE compile_job)
-endif()
+# speed up builds by precompiling commonly used headers
+target_precompile_headers(_winrt PRIVATE
+    "pywinrt/winsdk/src/py.Windows.Foundation.h"
+    "pywinrt/winsdk/src/py.Windows.Storage.Streams.h"
+)
+# needed because including windows.h affects winrt
+set_property(SOURCE "${CMAKE_CURRENT_SOURCE_DIR}/pywinrt/winsdk/src/runtime.cpp" PROPERTY SKIP_PRECOMPILE_HEADERS ON)
+# needed because including Shobjidl.h affects winrt
+set_property(SOURCE "${CMAKE_CURRENT_SOURCE_DIR}/pywinrt/winsdk/src/_winrt.cpp" PROPERTY SKIP_PRECOMPILE_HEADERS ON)
+# needed because including unknwn.h affects winrt
+set_property(SOURCE "${CMAKE_CURRENT_SOURCE_DIR}/pywinrt/winsdk/src/py.Windows.Graphics.Capture.Interop.cpp" PROPERTY SKIP_PRECOMPILE_HEADERS ON)
 
 install(TARGETS _winrt DESTINATION "pywinrt/${CMAKE_PROJECT_NAME}")