Fix problems with warnings in dependencies

example/Jamfile

@@ -7,8 +7,6 @@
 
 import os ;
 
-project : requirements <library>/boost/mysql//boost_mysql ;
-
 path-constant this_dir : . ;
 
 # The hostname to use for examples

test/Jamfile

@@ -15,8 +15,6 @@ import ac ;
 import indirect ;
 import config : requires ;
 
-project : requirements <library>/boost/mysql//boost_mysql ;
-
 # Support header-only builds
 feature.feature boost.mysql.separate-compilation : on off : propagated composite ;
 
@@ -67,6 +65,7 @@ local requirements =
         <toolset>msvc:<define>_SILENCE_CXX17_ALLOCATOR_VOID_DEPRECATION_WARNING
         <toolset>msvc:<define>_SILENCE_CXX17_ADAPTOR_TYPEDEFS_DEPRECATION_WARNING
         <toolset>msvc:<define>_SILENCE_CXX17_ITERATOR_BASE_CLASS_DEPRECATION_WARNING
+        <toolset>msvc:<define>_CRT_SECURE_NO_WARNINGS # Required by Asio
         # gcc-13+ doesn't understand view types and issues array bound warnings that don't make sense.
         # -Wno-implicit-fallthrough is required by Asio SSL components
         <toolset>gcc:<cxxflags>"-Wno-dangling-reference -Wno-array-bounds -Wno-implicit-fallthrough"
@@ -90,7 +89,7 @@ local requirements =
 
 alias boost_mysql
     :
-        /boost/charconv//boost_charconv
+        $(boost_dependencies)/<warnings-as-errors>off
         /openssl//ssl/<link>shared
         /openssl//crypto/<link>shared
     : requirements