Hu Chunming / sip_server

<?xml version="1.0" encoding="utf-8"?>
<explicit-failures-markup>
    <!-- url -->
    <library name="url">
        <mark-unusable>
            <toolset name="*c++98"/>
            <toolset name="*gnu98"/>
            <toolset name="*c++0x"/>
            <toolset name="*gnu0x"/>
            <toolset name="gcc-4.7*"/>
            <toolset name="gcc-8~c++2a"/>
            <toolset name="clang-linux-3.4*"/>
            <toolset name="clang-linux-3.5*"/>
            <toolset name="clang-linux-3.6*"/>
            <toolset name="clang-linux-3.7*"/>
            <toolset name="msvc-7.1"/>
            <toolset name="msvc-8.*"/>
            <toolset name="msvc-9.*"/>
            <toolset name="msvc-10.*"/>
            <toolset name="msvc-11.*"/>
            <toolset name="msvc-12.*"/>
            <toolset name="msvc-14.0"/>
            <note author="Vinnie Falco">C++11 is the minimum requirement.</note>
        </mark-unusable>
    </library>
</explicit-failures-markup>