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# Copyright 2013-2019 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 import *


class Cblas(Package):
    """The BLAS (Basic Linear Algebra Subprograms) are routines that
       provide standard building blocks for performing basic vector and
       matrix operations."""

    homepage = "http://www.netlib.org/blas/_cblas/"

    # tarball has no version, but on the date below, this MD5 was correct.
    version('2015-06-06', sha256='0f6354fd67fabd909baf57ced2ef84e962db58fae126e4f41b21dd4fec60a2a3',
            url='http://www.netlib.org/blas/blast-forum/cblas.tgz')

    depends_on('blas')
    parallel = False

    def patch(self):
        mf = FileFilter('Makefile.in')

        mf.filter('^BLLIB =.*', 'BLLIB = {0}'.format(
                  ' '.join(self.spec['blas'].libs.libraries)))
        mf.filter('^CC =.*', 'CC = cc')
        mf.filter('^FC =.*', 'FC = fc')

    def install(self, spec, prefix):
        make('all')
        mkdirp(prefix.lib)
        mkdirp(prefix.include)

        # Rename the generated lib file to libcblas.a
        install('lib/cblas_LINUX.a', prefix.lib.join('libcblas.a'))
        install('include/cblas.h', prefix.include)
        install('include/cblas_f77.h', prefix.include)