[squid-dev] [PATCH] detect compiler support for c++11 "override" keyword

[Kinkie]

Hi,
     the attached patch sets up a new autoconf test to detect whether the
compiler supports c++11's "override" keyword, and defines a
generally-available "OVERRIDE" preprocessor macro which expands to
"override" if support is present and nothing if it isn't.

This patch is necessary to support icc 13.1.3 which claims to be c++11 but
doesn't support this keyword.

As soon as patch this goes in, I expect that trunk will once again compile
correctly across the whole build farm.

-- 
    Francesco
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