[CMake] Exclude FoundationNetworking and _CFURLSessionInterface on WASI

Because networking is not a part of WASI Preview 1. We can add it back
when it is available.

Author: kateinoigakukun

Sources/CMakeLists.txt

@@ -14,10 +14,14 @@
 
 add_subdirectory(CoreFoundation)
 add_subdirectory(_CFXMLInterface)
-add_subdirectory(_CFURLSessionInterface)
+if(NOT CMAKE_SYSTEM_NAME STREQUAL "WASI")
+    add_subdirectory(_CFURLSessionInterface)
+endif()
 add_subdirectory(Foundation)
 add_subdirectory(FoundationXML)
-add_subdirectory(FoundationNetworking)
+if(NOT CMAKE_SYSTEM_NAME STREQUAL "WASI")
+    add_subdirectory(FoundationNetworking)
+endif()
 if(FOUNDATION_BUILD_TOOLS)
 	add_subdirectory(plutil)
 endif()