Merge pull request #508 from boostorg/pr/boost-clang-version-3

Update BOOST_CLANG_VERSION for Xcode 16.0, .1, .2

Author: jzmaddock

include/boost/config/compiler/clang_version.hpp

@@ -11,7 +11,10 @@
 
 // https://en.wikipedia.org/wiki/Xcode#Toolchain_versions
 
-# if BOOST_CLANG_REPORTED_VERSION >= 150000
+# if BOOST_CLANG_REPORTED_VERSION >= 160000
+#   define BOOST_CLANG_VERSION 170006
+
+# elif BOOST_CLANG_REPORTED_VERSION >= 150000
 #   define BOOST_CLANG_VERSION 160000
 
 # elif BOOST_CLANG_REPORTED_VERSION >= 140003