Disable `max` macro expanding (#467)
Disable `max` macro expanding (#467)

MSVC will report "warning C4003: not enough actual parameters for macro 'max'" with the compile option `/WX`.
If the `windows.h` header file is included, it will be expanded as a `max` function macro, and the compilation will fail.
Prevent the macro from being expanded to avoid the problem.
jtv/libpqxx,jtv/libpqxx,jtv/libpqxx,jtv/libpqxx