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# Copyright 2013-2021 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 Clapack(MakefilePackage):
"""CLAPACK is a f2c'ed version of LAPACK.
The CLAPACK library was built using a Fortran to C conversion utility
called f2c. The entire Fortran 77 LAPACK library is run through f2c to
obtain C code, and then modified to improve readability. CLAPACK's goal
is to provide LAPACK for someone who does not have access to a Fortran
compiler."""
homepage = "https://www.netlib.org/clapack/"
url = "http://www.netlib.org/clapack/clapack.tgz"
version('3.2.1', sha256='6dc4c382164beec8aaed8fd2acc36ad24232c406eda6db462bd4c41d5e455fac')
variant('external-blas', default=True,
description='Build with external BLAS (ATLAS here).')
depends_on('atlas', when='+external-blas')
def edit(self, spec, prefix):
copy('make.inc.example', 'make.inc')
if '+external-blas' in spec:
make_inc = FileFilter('make.inc')
make_inc.filter(r'^BLASLIB.*',
'BLASLIB = ../../libcblaswr.a -lcblas -latlas')
makefile = FileFilter('Makefile')
makefile.filter(r'^lib.*',
'lib: variants lapacklib tmglib')
def build(self, spec, prefix):
make('f2clib')
make('cblaswrap' if '+external-blas' in spec else 'blaslib')
make('lib')
def install(self, spec, prefix):
install_tree('.', prefix)
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