Similar to libc++ in C++17 mode, some types like std::auto_ptr are indeed
removed in C++17 mode by default, and need _HAS_AUTO_PTR_ETC=1 to be enabled
(see <https://blogs.msdn.microsoft.com/vcblog/2017/12/08/c17-feature-removals-
and-deprecations/>).

Unlike libc++, also std::binary_function and std::unary_function are removed
(and need the same _HAS_AUTO_PTR_ETC=1 to enable).  So either set that flag to
make external code build, or use patches (for external/mdds) to make externals'
files included in LO proper still work there.

Change-Id: I886cc0de8196255334ee03ec48cb4bc54d460afd
Reviewed-on: https://gerrit.libreoffice.org/46514Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>