buildroot

config BR2_PACKAGE_GSL

    bool "gsl"

    help

      The GNU Scientific Library (GSL) is a numerical library for

      C and C++ programmers. The library provides a wide range of

      mathematical routines such as random number generators,

      special functions and least-squares fitting. There are over

      1000 functions in total with an extensive test suite.

​

      http://www.gnu.org/software/gsl