libgmp-dev - 2:6.3.0+dfsg-2+b2 main

This development package provides the header files and the symbolic
links to allow compilation and linking of programs that use the libraries
provided in the libgmp10 package.
.
Both C and C++ bindings are present in this package. Package
libstdc++-dev is required to use the C++ bindings.
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The MPFR library (multiple-precision floating-point) used to be
included, but has since been moved to package libmpfr-dev.