fix macos

cmake/libraries/boost.cmake

@@ -98,7 +98,7 @@ if(PROJECT_ENABLE_BOOST)
         set(BOOST_CXX_STANDARD 17)
         set(BOOST_OPTIONS cxxflags=-Wno-enum-constexpr-conversion)
         if (PROJECT_IS_DARWIN)
-          set(BOOST_OPTIONS   
+          set(BOOST_OPTIONS
             ${BOOST_OPTIONS}
             define=BOOST_NO_CXX98_FUNCTION_BASE
           )
@@ -108,12 +108,18 @@ if(PROJECT_ENABLE_BOOST)
         set(BOOST_OPTIONS define=BOOST_ASIO_HAS_STD_STRING_VIEW)
       endif()
 
+      if (PROJECT_IS_DARWIN)
+        set(BOOST_CXX_STD_DIALECT iso)
+      else()
+        set(BOOST_CXX_STD_DIALECT gnu)
+      endif()
+
       set(BOOST_BUILD_ARGS
         --openssldir=$ENV{OPENSSL_ROOT_DIR}
         --prefix=${PROJECT_EXTERNAL_BUILD_ROOT}
         address-model=64
         architecture=${BOOST_ARCH}
-        cxxstd-dialect=gnu
+        cxxstd-dialect=${BOOST_CXX_STD_DIALECT}
         cxxstd=${BOOST_CXX_STANDARD}
         define=BOOST_SYSTEM_NO_DEPRECATED
         link=${BOOST_LINK}