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# Copyright 2013-2023 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 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 = "https://www.netlib.org/clapack/clapack.tgz"
license("BSD-3-Clause")
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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