[CMake] Enable unicode data support

Stubs has a macro define for enabling or disabling the embedded
unicode data tables, which are required for doing things like counting
characters in strings. Add that option and default it to 'on' for full
unicode support.

Author: etcwilde

Runtimes/Core/CMakeLists.txt

@@ -88,6 +88,7 @@ defaulted_option(SwiftCore_ENABLE_STATIC_PRINT "Disable full print")
 defaulted_option(SwiftCore_ENABLE_UNICODE_DATA "Embed Unicode info in Swift Core")
 defaulted_option(SwiftCore_ENABLE_COMPACT_ABSOLUTE_FUNCTION_POINTERS "Resolve absolute function pointer as identity")
 defaulted_option(SwiftCore_ENABLE_BACKDEPLOYMENT_SUPPORT "Add symbols for runtime backdeployment")
+option(SwiftCore_ENABLE_UNICODE_DATA "Include unicode data in Swift runtimes" ON)
 
 defaulted_option(SwiftCore_ENABLE_BACKTRACING "Enable backtracing runtime support")
 defaulted_set(SwiftCore_BACKTRACER_PATH STRING "Set a fixed path to the Swift backtracer")

Runtimes/Core/stubs/CMakeLists.txt

@@ -26,7 +26,9 @@ if(SwiftCore_ENABLE_OBJC_INTEROP)
 endif()
 
 
-target_compile_definitions(swiftStdlibStubs PRIVATE swiftCore_EXPORTS)
+target_compile_definitions(swiftStdlibStubs PRIVATE
+  swiftCore_EXPORTS
+  $<$<BOOL:${SwiftCore_ENABLE_UNICODE_DATA}>:-DSWIFT_STDLIB_ENABLE_UNICODE_DATA>)
 target_link_libraries(swiftStdlibStubs PRIVATE swiftShims)
 target_include_directories(swiftStdlibStubs PRIVATE
   "${PROJECT_BINARY_DIR}/include"