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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)
import collections
import re
import spack.compiler
import llnl.util.tty as tty
class Xlc(Package):
"""IBM XL C/C++ is an advanced, high-performance compiler that can be
used for developing complex, computationally intensive programs, including
interlanguage calls with C and Fortran programs.
"""
homepage = "https://www.ibm.com/support/knowledgecenter/SSXVZZ_16.1.1/com.ibm.compilers.linux.doc/welcome.html"
variant('r', default=True, description='The _r version of compilers')
def install(self, spec, prefix):
raise InstallError(
'XL compilers are not installable yet, but can be '
'detected on a system where they are supplied by vendor'
)
executables = [r'xlc', r'xlC', r'xlc\+\+']
@classmethod
def determine_version(cls, exe):
version_regex = re.compile(r'([0-9]?[0-9]\.[0-9])')
try:
output = spack.compiler.get_compiler_version_output(
exe, '-qversion'
)
# Exclude spurious Fortran compilers
if 'Fortran' in output:
return None
match = version_regex.search(output)
if match:
return match.group(1)
except spack.util.executable.ProcessError:
pass
except Exception as e:
tty.debug(str(e))
@classmethod
def determine_variants(cls, exes, version_str):
variants = collections.defaultdict(dict)
for exe in exes:
# Determine the variant of the spec
variant_str = '+r' if '_r' in exe else '~r'
if 'xlc++' in exe:
variants[variant_str]['cxx'] = exe
continue
if 'xlc' in exe:
variants[variant_str]['c'] = exe
continue
results = []
for variant_str, compilers in variants.items():
results.append((variant_str, {'compilers': compilers}))
return results
@property
def cc(self):
if self.spec.external:
return self.spec.extra_attributes['compilers']['c']
msg = "cannot retrieve C compiler [spec is not concrete]"
assert self.spec.concrete, msg
@property
def cxx(self):
if self.spec.external:
return self.spec.extra_attributes['compilers']['cxx']
msg = "cannot retrieve C compiler [spec is not concrete]"
assert self.spec.concrete, msg
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