Address comments

libcxx/CMakeLists.txt

@@ -97,6 +97,7 @@ option(LIBCXX_ENABLE_UNICODE
   "Whether to include support for Unicode in the library. Disabling Unicode can
    be useful when porting to platforms that don't support UTF-8 encoding (e.g.
    embedded)." ON)
+option(LIBCXX_HAS_TERMINAL_AVAILABLE "Build libc++ with terminal checking support" OFF)
 option(LIBCXX_ENABLE_WIDE_CHARACTERS
   "Whether to include support for wide characters in the library. Disabling
    wide character support can be useful when porting to platforms that don't
@@ -297,7 +298,6 @@ option(LIBCXX_HAS_WIN32_THREAD_API "Ignore auto-detection and force use of win32
 option(LIBCXX_HAS_EXTERNAL_THREAD_API
   "Build libc++ with an externalized threading API.
    This option may only be set to ON when LIBCXX_ENABLE_THREADS=ON." OFF)
-option(LIBCXX_HAS_TERMINAL_AVAILABLE "Build libc++ with terminal checking support" ON)
 
 if (LIBCXX_ENABLE_THREADS)
   set(LIBCXX_PSTL_BACKEND "std_thread" CACHE STRING "Which PSTL backend to use")

libcxx/utils/libcxx/test/features.py

@@ -378,6 +378,7 @@ def _mingwSupportsModules(cfg):
     "_LIBCPP_HAS_NO_FILESYSTEM": "no-filesystem",
     "_LIBCPP_HAS_NO_RANDOM_DEVICE": "no-random-device",
     "_LIBCPP_HAS_NO_LOCALIZATION": "no-localization",
+    "_LIBCPP_HAS_NO_TERMINAL": "no-terminal",
     "_LIBCPP_HAS_NO_WIDE_CHARACTERS": "no-wide-characters",
     "_LIBCPP_HAS_NO_TIME_ZONE_DATABASE": "no-tzdb",
     "_LIBCPP_HAS_NO_UNICODE": "libcpp-has-no-unicode",