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from spack import *
import sys
import os
class Openblas(Package):
"""OpenBLAS: An optimized BLAS library"""
homepage = "http://www.openblas.net"
url = "http://github.com/xianyi/OpenBLAS/archive/v0.2.15.tar.gz"
version('0.2.17', '664a12807f2a2a7cda4781e3ab2ae0e1')
version('0.2.16', 'fef46ab92463bdbb1479dcec594ef6dc')
version('0.2.15', 'b1190f3d3471685f17cfd1ec1d252ac9')
variant('shared', default=True, description="Build shared libraries as well as static libs.")
# virtual dependency
provides('blas')
provides('lapack')
def install(self, spec, prefix):
make_defs = ['CC=%s' % spack_cc,
'FC=%s' % spack_fc]
make_targets = ['libs', 'netlib']
# Build shared if variant is set.
if '+shared' in spec:
make_targets += ['shared']
else:
make_defs += ['NO_SHARED=1']
# fix missing _dggsvd_ and _sggsvd_
if spec.satisfies('@0.2.16'):
make_defs += ['BUILD_LAPACK_DEPRECATED=1']
make_args = make_defs + make_targets
make(*make_args)
make("tests", *make_defs)
# no quotes around prefix (spack doesn't use a shell)
make('install', "PREFIX=%s" % prefix, *make_defs)
# Blas virtual package should provide blas.a and libblas.a
with working_dir(prefix.lib):
symlink('libopenblas.a', 'blas.a')
symlink('libopenblas.a', 'libblas.a')
if '+shared' in spec:
symlink('libopenblas.%s' % dso_suffix, 'libblas.%s' % dso_suffix)
# Lapack virtual package should provide liblapack.a
with working_dir(prefix.lib):
symlink('libopenblas.a', 'liblapack.a')
if '+shared' in spec:
symlink('libopenblas.%s' % dso_suffix, 'liblapack.%s' % dso_suffix)
def setup_dependent_package(self, module, dspec):
# This is WIP for a prototype interface for virtual packages.
# We can update this as more builds start depending on BLAS/LAPACK.
libdir = find_library_path('libopenblas.a', self.prefix.lib64, self.prefix.lib)
self.spec.blas_static_lib = join_path(libdir, 'libopenblas.a')
self.spec.lapack_static_lib = self.spec.blas_static_lib
if '+shared' in self.spec:
self.spec.blas_shared_lib = join_path(libdir, 'libopenblas.%s' % dso_suffix)
self.spec.lapack_shared_lib = self.spec.blas_shared_lib
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