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# Copyright 2013-2019 The Meson development team
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
# http://www.apache.org/licenses/LICENSE-2.0
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# This file contains the detection logic for miscellaneous external dependencies.
import subprocess
from pathlib import Path
from .. import mlog
from ..mesonlib import split_args
from .base import DependencyException, ExternalDependency, ExternalProgram, PkgConfigDependency
class HDF5Dependency(ExternalDependency):
def __init__(self, environment, kwargs):
language = kwargs.get('language', 'c')
super().__init__('hdf5', environment, language, kwargs)
kwargs['required'] = False
kwargs['silent'] = True
self.is_found = False
# 1. pkg-config
pkgconfig_files = ['hdf5', 'hdf5-serial']
# some distros put hdf5-1.2.3.pc with version number in .pc filename.
try:
ret = subprocess.run(['pkg-config', '--list-all'], stdout=subprocess.PIPE, stderr=subprocess.DEVNULL,
universal_newlines=True)
if ret.returncode == 0:
for pkg in ret.stdout.split('\n'):
if pkg.startswith(('hdf5')):
pkgconfig_files.append(pkg.split(' ', 1)[0])
pkgconfig_files = list(set(pkgconfig_files)) # dedupe
except FileNotFoundError:
# pkg-config was not available
pass
if language not in ('c', 'cpp', 'fortran'):
raise DependencyException('Language {} is not supported with HDF5.'.format(language))
for pkg in pkgconfig_files:
pkgdep = PkgConfigDependency(pkg, environment, kwargs, language=self.language)
if not pkgdep.found():
continue
self.compile_args = pkgdep.get_compile_args()
# some broken pkgconfig don't actually list the full path to the needed includes
newinc = []
for arg in self.compile_args:
if arg.startswith('-I'):
stem = 'static' if kwargs.get('static', False) else 'shared'
if (Path(arg[2:]) / stem).is_dir():
newinc.append('-I' + str(Path(arg[2:]) / stem))
self.compile_args += newinc
# derive needed libraries by language
pd_link_args = pkgdep.get_link_args()
link_args = []
for larg in pd_link_args:
lpath = Path(larg)
# some pkg-config hdf5.pc (e.g. Ubuntu) don't include the commonly-used HL HDF5 libraries,
# so let's add them if they exist
# additionally, some pkgconfig HDF5 HL files are malformed so let's be sure to find HL anyway
if lpath.is_file():
hl = []
if language == 'cpp':
hl += ['_hl_cpp', '_cpp']
elif language == 'fortran':
hl += ['_hl_fortran', 'hl_fortran', '_fortran']
hl += ['_hl'] # C HL library, always needed
suffix = '.' + lpath.name.split('.', 1)[1] # in case of .dll.a
for h in hl:
hlfn = lpath.parent / (lpath.name.split('.', 1)[0] + h + suffix)
if hlfn.is_file():
link_args.append(str(hlfn))
# HDF5 C libs are required by other HDF5 languages
link_args.append(larg)
else:
link_args.append(larg)
self.link_args = link_args
self.version = pkgdep.get_version()
self.is_found = True
self.pcdep = pkgdep
return
# 2. compiler wrapper fallback
wrappers = {'c': 'h5cc', 'cpp': 'h5c++', 'fortran': 'h5fc'}
comp_args = []
link_args = []
# have to always do C as well as desired language
for lang in set([language, 'c']):
prog = ExternalProgram(wrappers[lang], silent=True)
if not prog.found():
return
cmd = prog.get_command() + ['-show']
p = subprocess.run(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE, universal_newlines=True, timeout=15)
if p.returncode != 0:
mlog.debug('Command', mlog.bold(cmd), 'failed to run:')
mlog.debug(mlog.bold('Standard output\n'), p.stdout)
mlog.debug(mlog.bold('Standard error\n'), p.stderr)
return
args = split_args(p.stdout)
for arg in args[1:]:
if arg.startswith(('-I', '-f', '-D')) or arg == '-pthread':
comp_args.append(arg)
elif arg.startswith(('-L', '-l', '-Wl')):
link_args.append(arg)
elif Path(arg).is_file():
link_args.append(arg)
self.compile_args = comp_args
self.link_args = link_args
self.is_found = True
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