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meson.build
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project(
'pyavl',
'c',
version: '1.8.0',
license: 'GPL-2.0',
meson_version: '>= 0.64.0',
default_options: [
'buildtype=debugoptimized',
'c_std=c99',
'fortran_std=legacy',
'blas=openblas',
'lapack=openblas'
],
)
cc = meson.get_compiler('c')
# We need -lm for all C code (assuming it uses math functions, which is safe to
# assume for SciPy). For C++ it isn't needed, because libstdc++/libc++ is
# guaranteed to depend on it. For Fortran code, Meson already adds `-lm`.
m_dep = cc.find_library('m', required : false)
if m_dep.found()
add_project_link_arguments('-lm', language : 'c')
endif
# Adding at project level causes many spurious -lgfortran flags.
add_languages('fortran', native: false)
ff = meson.get_compiler('fortran')
# if ff.has_argument('-Wno-conversion')
# add_project_arguments('-Wno-conversion', language: 'fortran')
# endif
is_windows = host_machine.system() == 'windows'
is_mingw = is_windows and cc.get_id() == 'gcc'
message('is_windows', is_windows, 'is_mingw', is_mingw)
if is_windows
# For mingw-w64, link statically against the UCRT.
gcc_link_args = ['-lucrt', '-static']
if is_mingw
add_project_link_arguments(gcc_link_args, language: ['c', 'cpp'])
# Force gcc to float64 long doubles for compatibility with MSVC
# builds, for C only.
add_project_arguments('-mlong-double-64', language: ['c', 'fortran'])
add_project_arguments('-mcmodel=medium', language: ['c', 'cpp', 'fortran'])
# Make fprintf("%zd") work (see https://github.com/rgommers/scipy/issues/118)
add_project_arguments('-D__USE_MINGW_ANSI_STDIO=1', language: ['c', 'cpp'])
# Manual add of MS_WIN64 macro when not using MSVC.
# https://bugs.python.org/issue28267
bitness = run_command('_build_utils/gcc_build_bitness.py').stdout().strip()
message('windows bitness is ', bitness)
if bitness == '64'
add_project_arguments('-DMS_WIN64', language: ['c', 'cpp', 'fortran'])
endif
endif
if meson.get_compiler('fortran').get_id() == 'gcc'
add_project_link_arguments(gcc_link_args, language: ['fortran'])
# Flag needed to work around BLAS and LAPACK Gfortran dependence on
# undocumented C feature when passing single character string
# arguments.
# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90329
# https://github.com/wch/r-source/blob/838f9d5a7be08f2a8c08e47bcd28756f5d0aac90/src/gnuwin32/MkRules.rules#L121
add_project_arguments('-fno-optimize-sibling-calls', language: ['fortran'])
endif
endif
# _linker_script = meson.project_source_root() / '_build_utils/link-version-pyinit.map'
# link_args = ['-Wl,--version-script=' + _linker_script]
# link_args = ['-Wl,--image-base,0x10000000']
# link_args = ['-mcmodel=medium']
link_args = []
# https://mesonbuild.com/Python-module.html
py_mod = import('python')
py3 = py_mod.find_installation(pure: false)
py3_dep = py3.dependency()
incdir_numpy = run_command(py3,
[
'-c',
'import os; os.chdir(".."); import numpy; print(numpy.get_include())'
],
check: true
).stdout().strip()
inc_np = include_directories(incdir_numpy)
incdir_f2py = incdir_numpy / '..' / '..' / 'f2py' / 'src'
inc_f2py = include_directories(incdir_f2py)
# TODO: 64-bit BLAS and LAPACK
#
# Note that this works as long as BLAS and LAPACK are detected properly via
# pkg-config. By default we look for OpenBLAS, other libraries can be configured via
# `meson configure -Dblas=blas -Dlapack=lapack` (example to build with Netlib
# BLAS and LAPACK).
# For MKL and for auto-detecting one of multiple libs, we'll need a custom
# dependency in Meson (like is done for scalapack) - see
# https://github.com/mesonbuild/meson/issues/2835
blas_name = get_option('blas')
lapack_name = get_option('lapack')
# pkg-config uses a lower-case name while CMake uses a capitalized name, so try
# that too to make the fallback detection with CMake work
if blas_name == 'openblas'
blas_name = ['openblas', 'OpenBLAS']
endif
if lapack_name == 'openblas'
lapack_name = ['openblas', 'OpenBLAS']
endif
blas = dependency(blas_name)
lapack = dependency(lapack_name)
dependency_map = {
'BLAS': blas,
'LAPACK': lapack,
}
# Fortran warning flags
_fflag_Wno_maybe_uninitialized = ff.get_supported_arguments('-Wno-maybe-uninitialized')
_fflag_Wno_unused_variable = ff.get_supported_arguments('-Wno-unused-variable')
_fflag_Wno_align_commons = ff.get_supported_arguments('-Wno-align-commons')
_fflag_Wno_unused_label = ff.get_supported_arguments('-Wno-unused-label')
_fflag_Wno_character_truncation = ff.get_supported_arguments('-Wno-character-truncation')
_fflag_Wno_unused_dummy_argument = ff.get_supported_arguments('-Wno-unused-dummy-argument')
# The default list of warnings to ignore from Fortran code. There is a lot of
# old, vendored code that is very bad and we want to compile it silently (at
# least with GCC and Clang)
ff_args = ff.get_supported_arguments(
_fflag_Wno_maybe_uninitialized,
_fflag_Wno_unused_variable,
_fflag_Wno_align_commons,
_fflag_Wno_unused_label,
_fflag_Wno_character_truncation,
_fflag_Wno_unused_dummy_argument
)
ff_args += [
'-ffixed-line-length-80',
'-std=legacy',
'-fdefault-real-8',
'-fdefault-double-8',
'-fPIC',
'-O2'
]
numpy_nodepr_api = '-DNPY_NO_DEPRECATED_API=NPY_1_9_API_VERSION'
cc_args = [numpy_nodepr_api]
if is_windows
ff_args += ff.get_supported_arguments('-fomit-frame-pointer')
cc_args += cc.get_supported_arguments('-fomit-frame-pointer')
endif
fortranobject_c = incdir_f2py / 'fortranobject.c'
# Share this object across multiple modules.
fortranobject_lib = static_library('_fortranobject',
fortranobject_c,
c_args: cc_args,
dependencies: py3_dep,
include_directories: [inc_np, inc_f2py],
)
fortranobject_dep = declare_dependency(
link_with: fortranobject_lib,
include_directories: [inc_np, inc_f2py],
)
c = run_command('src' / 'grab-all-fortran-files.py', check: true)
avl_source_files = c.stdout().strip().split('\n')
avl_inc = include_directories('src/includes')
avl_c_wrapper = custom_target('libavlmodule.c',
input : ['src/f2py/libavl.pyf'],
output : ['libavlmodule.c', 'libavl-f2pywrappers.f'],
command: [py3, '-m', 'numpy.f2py', '@INPUT@', ]
)
py3.extension_module('libavl',
avl_source_files,
avl_c_wrapper,
fortranobject_c,
include_directories: [inc_np, inc_f2py, avl_inc],
dependencies: [lapack, blas, fortranobject_dep],
subdir: 'pyavl',
link_args: link_args,
fortran_args: ff_args,
c_args: cc_args,
install : true,
link_language: 'fortran'
)
py3.install_sources([
'pyavl/__init__.py',
'pyavl/pyAVL.py',
'pyavl/MExt.py',
'pyavl/om_wrapper.py',
],
subdir: 'pyavl'
)