Updates:

- Address PR feedback.
- Add SecureTransport backend for macOS.

CMakeLists.txt

@@ -64,8 +64,9 @@ option(YUZU_DOWNLOAD_TIME_ZONE_DATA "Always download time zone binaries" OFF)
 CMAKE_DEPENDENT_OPTION(YUZU_USE_FASTER_LD "Check if a faster linker is available" ON "NOT WIN32" OFF)
 
 set(DEFAULT_ENABLE_OPENSSL ON)
-if (ANDROID OR WIN32)
+if (ANDROID OR WIN32 OR APPLE)
     # - Windows defaults to the Schannel backend.
+    # - macOS defaults to the SecureTransport backend.
     # - Android currently has no SSL backend as the NDK doesn't include any SSL
     #   library; a proper 'native' backend would have to go through Java.
     # But you can force builds for those platforms to use OpenSSL if you have