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- from __future__ import division, absolute_import, print_function
- from subprocess import PIPE, Popen
- import sys
- import re
- import pytest
- from numpy.linalg import lapack_lite
- from numpy.testing import assert_
- class FindDependenciesLdd(object):
- def __init__(self):
- self.cmd = ['ldd']
- try:
- p = Popen(self.cmd, stdout=PIPE, stderr=PIPE)
- stdout, stderr = p.communicate()
- except OSError:
- raise RuntimeError("command %s cannot be run" % self.cmd)
- def get_dependencies(self, lfile):
- p = Popen(self.cmd + [lfile], stdout=PIPE, stderr=PIPE)
- stdout, stderr = p.communicate()
- if not (p.returncode == 0):
- raise RuntimeError("failed dependencies check for %s" % lfile)
- return stdout
- def grep_dependencies(self, lfile, deps):
- stdout = self.get_dependencies(lfile)
- rdeps = dict([(dep, re.compile(dep)) for dep in deps])
- founds = []
- for l in stdout.splitlines():
- for k, v in rdeps.items():
- if v.search(l):
- founds.append(k)
- return founds
- class TestF77Mismatch(object):
- @pytest.mark.skipif(not(sys.platform[:5] == 'linux'),
- reason="no fortran compiler on non-Linux platform")
- def test_lapack(self):
- f = FindDependenciesLdd()
- deps = f.grep_dependencies(lapack_lite.__file__,
- [b'libg2c', b'libgfortran'])
- assert_(len(deps) <= 1,
- """Both g77 and gfortran runtimes linked in lapack_lite ! This is likely to
- cause random crashes and wrong results. See numpy INSTALL.txt for more
- information.""")
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