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### Linkage Options

macro | description
--- | ---
BOOST_REGEX_DYN_LINK | For Microsoft and Borland C++ builds, this tells Boost.Regex that it should link to the dll build of the Boost.Regex. By default boost.regex will link to its static library build, even if the dynamic C runtime library is in use.
BOOST_REGEX_NO_LIB | For Microsoft and Borland C++ builds, this tells Boost.Regex that it should not automatically select the library to link to.
BOOST_REGEX_NO_FASTCALL | For Microsoft builds, this tells Boost.Regex to use the `__cdecl` calling convention rather than `__fastcall`. Useful if you want to use the same library from both managed and unmanaged code.