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pmsco-public/subprojects/phagen/meson.build

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Meson

# meson build file based on https://numpy.org/doc/stable/f2py/buildtools/meson.html
# the phagen python module is built using numpy.f2py
# note when importing a new phagen version:
# in the phagen_scf.f file, replace "program phagen" with "subroutine phagen"
project('phagen', 'c', 'fortran',
version : '2.3',
meson_version: '>= 1.3',
default_options: [
'c_std=c99',
'cpp_std=c++14',
'fortran_std=legacy',
'python.install_env=auto',
'warning_level=2'
]
)
fs_mod = import('fs')
py_mod = import('python')
py3 = py_mod.find_installation('python3')
py3_dep = py3.dependency()
message(py3.full_path())
message(py3.get_install_dir())
# silence fortran warnings
ff = meson.get_compiler('fortran')
_global_ff_args = ff.get_supported_arguments(
'-fallow-argument-mismatch',
'-Wno-argument-mismatch',
'-Wno-compare-reals',
'-Wno-conversion',
'-Wno-do-subscript',
'-Wno-intrinsic-shadow',
'-Wno-line-truncation',
'-Wno-maybe-uninitialized',
'-Wno-return-type',
'-Wno-tabs',
'-Wno-unused-dummy-argument',
'-Wno-unused-label',
'-Wno-unused-parameter',
'-Wno-unused-variable',
)
add_project_arguments(_global_ff_args, language : 'fortran')
# silence c warnings
cc = meson.get_compiler('c')
_global_cc_args = cc.get_supported_arguments(
'-Wno-cast-function-type',
'-Wno-dangling-else',
'-Wno-format-extra-args',
'-Wno-implicit-function-declaration',
'-Wno-implicit-int',
'-Wno-int-in-bool-context',
'-Wno-maybe-uninitialized',
'-Wno-misleading-indentation',
'-Wno-missing-field-initializers',
'-Wno-return-type',
'-Wno-unused-result',
'-Wno-unused-variable',
'-Wno-unused-function',
'-Wno-unused-parameter',
'-Wno-write-strings',
)
add_project_arguments(_global_cc_args, language : 'c')
# work is in progress in the meson project to simplify dependency detection.
# as of november 2025, it seems to work for numpy but not for numpy.f2py.
# np_dep = dependency('numpy')
# np_dep = dependency('numpy', modules: 'f2py')
# cf. https://github.com/mesonbuild/meson/issues/9598
# the following is adapted from scipy
# https://github.com/scipy/scipy/blob/beb6b2fbe656eae47b117fa8c416cdd88c27c98e/scipy/meson.build
_incdir_numpy_abs = run_command(py3,
['-c', 'import os; os.chdir(".."); import numpy; print(numpy.get_include())'],
check : true
).stdout().strip()
incdir_numpy = fs_mod.relative_to(_incdir_numpy_abs, '.')
inc_np = include_directories(incdir_numpy)
numpy_nodepr_api = ['-DNPY_NO_DEPRECATED_API=NPY_1_9_API_VERSION']
np_dep = declare_dependency(include_directories: inc_np, compile_args: numpy_nodepr_api)
incdir_f2py = run_command(py3,
['-c', 'import os; os.chdir(".."); import numpy.f2py; print(numpy.f2py.get_include())'],
check : true
).stdout().strip()
incdir_f2py = fs_mod.relative_to(incdir_f2py, '.')
inc_f2py = include_directories(incdir_f2py)
fortranobject_c = incdir_f2py / 'fortranobject.c'
fortranobject_lib = static_library('_fortranobject',
fortranobject_c,
c_args: numpy_nodepr_api,
dependencies: py3_dep,
include_directories: [inc_np, inc_f2py],
gnu_symbol_visibility: 'hidden',
)
fortranobject_dep = declare_dependency(
link_with: fortranobject_lib,
include_directories: [inc_np, inc_f2py],
)
f2py = find_program('f2py')
wrapper = custom_target('phagenmodule.c',
input : ['src/phagen_scf.f'],
depend_files : ['src/msxas3.inc', 'src/msxasc3.inc'],
output : ['phagenmodule.c', 'phagen-f2pywrappers.f'],
command : [py3, '-m', 'numpy.f2py', '@INPUT@', '--verbose', '-m', 'phagen', '--build-dir', '@OUTDIR@', 'only:', 'phagen']
)
source = ['src/phagen_scf.f', wrapper]
phagen_lib = py3.extension_module('phagen',
source,
include_directories: ['src'],
dependencies : [py3_dep, np_dep, fortranobject_dep],
link_language: 'fortran',
install : true
)
phagen_dep = declare_dependency(
dependencies : py3_dep,
link_with : phagen_lib,
)
test('phagen', py3, args : ['-c', 'from phagen import phagen; exit(0)'])