# Copyright 2013-2022 Lawrence Livermore National Security, LLC and other
# Spack Project Developers. See the top-level COPYRIGHT file for details.
#
# SPDX-License-Identifier: (Apache-2.0 OR MIT)

from spack.package import *


class Cminpack(CMakePackage):
    """This is a C version of the minpack minimization package.
    Minpack includes software for solving nonlinear equations
    and nonlinear least squares problems.
    """

    homepage = "http://devernay.free.fr/hacks/cminpack"
    url      = "https://github.com/devernay/cminpack/archive/v1.3.6.tar.gz"
    git      = 'https://github.com/devernay/cminpack.git'

    version('master', branch='master')
    version('1.3.6', sha256='3c07fd21308c96477a2c900032e21d937739c233ee273b4347a0d4a84a32d09f')

    variant('shared', default=False, description='Build shared libraries')
    variant('blas', default=True, description='Compile with BLAS')

    depends_on('blas', when='+blas')

    # Backport a pull request for correctly linking blas.
    # See https://github.com/devernay/cminpack/pull/21
    patch('link_with_blas_pr_21.patch', when='@:1.3.6')

    def cmake_args(self):
        args = [
            self.define_from_variant('BUILD_SHARED_LIBS', 'shared'),
            '-DUSE_BLAS=%s' % (
                'ON' if 'blas' in self.spec else 'OFF')
        ]

        return args