__config_site change

llvm/llvm-project#112094

Author: aheejin

system/lib/libcxx/include/__config_site

@@ -1,10 +1,27 @@
 // Set the LIBCPP ABI version 2 under emscripten so that we get nicely aligned string
 // data and other nice fixes.
 #define _LIBCPP_ABI_VERSION 2
-#define _LIBCPP_HAS_NO_VENDOR_AVAILABILITY_ANNOTATIONS
-#define _LIBCPP_HAS_MUSL_LIBC
 #define _LIBCPP_ABI_NAMESPACE __2
-// Emscripten doesn't use PSTL at the moment.
+#define _LIBCPP_ABI_FORCE_ITANIUM 0
+#define _LIBCPP_ABI_FORCE_MICROSOFT 0
+#define _LIBCPP_HAS_THREADS 1
+#define _LIBCPP_HAS_MONOTONIC_CLOCK 1
+#define _LIBCPP_HAS_MUSL_LIBC 1
+#define _LIBCPP_HAS_THREAD_API_PTHREAD 1
+#define _LIBCPP_HAS_THREAD_API_EXTERNAL 0
+#define _LIBCPP_HAS_THREAD_API_WIN32 0
+#define _LIBCPP_HAS_THREAD_API_C11 0
+#define _LIBCPP_HAS_VENDOR_AVAILABILITY_ANNOTATIONS 0
+#define _LIBCPP_HAS_FILESYSTEM 1
+#define _LIBCPP_HAS_RANDOM_DEVICE 1
+#define _LIBCPP_HAS_LOCALIZATION 1
+#define _LIBCPP_HAS_UNICODE 1
+#define _LIBCPP_HAS_WIDE_CHARACTERS 1
+#define _LIBCPP_HAS_TIME_ZONE_DATABASE 0
+#define _LIBCPP_INSTRUMENTED_WITH_ASAN 0
+
+// PSTL backends: Emscripten doesn't use PSTL at the moment.
 #define _LIBCPP_PSTL_BACKEND_SERIAL
+
+// Hardening
 #define _LIBCPP_HARDENING_MODE_DEFAULT _LIBCPP_HARDENING_MODE_NONE
-#define _LIBCPP_HAS_NO_TIME_ZONE_DATABASE