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# Copyright 2013-2024 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 llnl.util.tty as tty
import spack.compiler
from spack.package import *
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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