CMake fix transitive target properties, and macos rpath handling

prepending target properties with INTERFACE_ makes the property transitive to consumers.
add normal MSVC_RUNTIME_LIBRARY to windows properties
add INTERFACE_ to BUILD_RPATH_USE_ORIGIN
add INTERFACE_ to POSITION_INDEPENDENT_CODE
add INTERFACE_ to OSX_ARCHITECTURES
enable INTERFACE_MACOSX_RPATH for origin rpath on macos

Author: enetheru

cmake/godotcpp.cmake

@@ -298,8 +298,9 @@ function( godotcpp_generate )
                 CXX_VISIBILITY_PRESET ${GODOT_SYMBOL_VISIBILITY}
 
                 COMPILE_WARNING_AS_ERROR ${GODOT_WARNING_AS_ERROR}
+
                 POSITION_INDEPENDENT_CODE ON
-                BUILD_RPATH_USE_ORIGIN ON
+                INTERFACE_POSITION_INDEPENDENT_CODE ON
 
                 PREFIX lib
                 OUTPUT_NAME "${PROJECT_NAME}.${SYSTEM_NAME}.${TARGET_ALIAS}${DEV_TAG}.${SYSTEM_ARCH}"

cmake/macos.cmake

@@ -36,7 +36,9 @@ function( macos_generate )
     set_target_properties( ${TARGET_NAME}
             PROPERTIES
 
+            # Specify multiple architectures for universal builds
             OSX_ARCHITECTURES "${OSX_ARCH}"
+            GODOT_ARCH ${SYSTEM_ARCH}
     )
 
     target_compile_definitions(${TARGET_NAME}

test/CMakeLists.txt

@@ -55,13 +55,15 @@ if( CMAKE_SYSTEM_NAME STREQUAL Darwin )
 
     set_target_properties( godot-cpp-test
             PROPERTIES
-            LIBRARY_OUTPUT_DIRECTORY "$<1:${OUTPUT_DIR}>"
-            RUNTIME_OUTPUT_DIRECTORY "$<1:${OUTPUT_DIR}>"
 
             OUTPUT_NAME "gdexample.macos.${TEST_TARGET}${DEV}"
             SUFFIX ""
 
             #macos options
             OSX_ARCHITECTURES "${OSX_ARCH}"
+
+            # enable RPATH on MACOS, with the BUILD_RPATH_USE_ORIGIN
+            # this should allow loading libraries from relative paths on macos.
+            MACOSX_RPATH ON
     )
 endif ()