naddy 53302a19c9 Re-add the gmpxx C++ library. productivity/libalkimia requires the
C++ templates, though not libgmpxx.

Split off the C++ support into a separate cxx subpackage.  Add a
no_cxx bootstrap flavor and use it for the dependency chain up to
lang/gcc/4.9 in order to allow bootstrapping a C++ compiler from
ports.

Based on work by sthen@, tweaks by espie@.
2018-11-02 18:43:56 +00:00

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GNU MP is a library for arbitrary precision arithmetic, operating on
signed integers, rational numbers, and floating point numbers. It has a
rich set of functions, and the functions have a regular interface.
This package contains the C++ class based interface.