Force Linux builds to use gnu++98 (C++98 + GNU extensions) mode to be
the most compatible with our old code base rather than relying on the
compiler default mode. Compiling in C++11 or newer
Force Linux builds to use gnu++98 (C++98 + GNU extensions) mode to be
the most compatible with our old code base rather than relying on the
compiler default mode. Compiling in C++11 or newer mode is very noisy
due to deprecation warnings about our use of std::auto_ptr. If the
compiler defaults to C++17 mode or newer, the build would be totally
broken because std::auto_ptr is removed from C++17.
There is an unknown amount of porting effort needed to convert to
std::unique_ptr, which has somewhat different semantics and which is
not available before C++11, which would break building with older versions
of gcc which default to gnu++98 mode.
std::shared_ptr, might be an alternative since there is a BOOST
implementation.
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