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Merge pull request #42 from lukaswittmann/main
Added the meson build system.
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‎.gitignore‎

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*.smod
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# API-doc
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API-doc/
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API-doc/
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# Meson subprojects
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subprojects/test-drive

‎README.md‎

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## Build with CMake
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This library can also be built using CMake. For instructions see [Running CMake](https://cmake.org/runningcmake/). CMake version 3.24 or higher is required.
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## Build with Meson
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This library can also be built using Meson. The following dependencies are required:
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- a Fortran compiler
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- [meson](https://mesonbuild.com) version 0.57 or newer
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- a build-system backend, *i.e.* [ninja](https://ninja-build.org) version 1.7 or newer
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Setup a build with
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```sh
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meson setup build
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```
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You can select the Fortran compiler by the `FC` environment variable.
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To compile and run the projects testsuite use
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```sh
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meson test -C build --print-errorlogs
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```
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If the testsuite passes you can install with
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```sh
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meson configure build --prefix=/path/to/install
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meson install -C build
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```
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## Links
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- [netlib/dfftpack1.0(fftpack4.0)](http://www.netlib.org/fftpack/)
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- [Documents of fft routines in GNU/gsl based on `netlib/fftpack`](https://www.gnu.org/software/gsl/doc/html/fft.html#)

‎configure/install-mod.py‎

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#!/usr/bin/env python3
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from os import environ, listdir, makedirs
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from os.path import join, isdir, exists
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from sys import argv
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from shutil import copy
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build_dir = environ["MESON_BUILD_ROOT"]
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if "MESON_INSTALL_DESTDIR_PREFIX" in environ:
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install_dir = environ["MESON_INSTALL_DESTDIR_PREFIX"]
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else:
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install_dir = environ["MESON_INSTALL_PREFIX"]
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include_dir = argv[1] if len(argv) > 1 else "include"
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module_dir = join(install_dir, include_dir)
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modules = []
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for d in listdir(build_dir):
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bd = join(build_dir, d)
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if isdir(bd):
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for f in listdir(bd):
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if f.endswith(".mod"):
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modules.append(join(bd, f))
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if not exists(module_dir):
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makedirs(module_dir)
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for mod in modules:
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print("Installing", mod, "to", module_dir)
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copy(mod, module_dir)

‎configure/meson.build‎

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os = host_machine.system()
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fc = meson.get_compiler('fortran')
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cc = fc
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fc_id = fc.get_id()
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if fc_id == 'gcc'
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add_project_arguments(
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'-ffree-line-length-none',
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'-fbacktrace',
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language: 'fortran',
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)
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elif fc_id == 'intel'
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add_project_arguments(
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'-traceback',
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language: 'fortran',
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)
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elif fc_id == 'pgi' or fc_id == 'nvidia_hpc'
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add_project_arguments(
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'-Mbackslash',
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'-Mallocatable=03',
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'-traceback',
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language: 'fortran',
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)
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endif

‎meson.build‎

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project(
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'fftpack',
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'fortran',
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version: '4.0.0',
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meson_version: '>=0.57',
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default_options: [
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'buildtype=debugoptimized',
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'default_library=both',
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'c_std=c11',
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],
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)
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install = not (meson.is_subproject() and get_option('default_library') == 'static')
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# Collect source of the project
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srcs = []
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subdir('src')
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# General configuration information
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inc_dirs = []
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lib_deps = []
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subdir('configure')
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# Library target
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fftpack_lib = library(
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meson.project_name(),
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sources: srcs,
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version: meson.project_version(),
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dependencies: lib_deps,
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include_directories: inc_dirs,
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install: install,
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)
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# Export dependency for other projects and test suite
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fftpack_dep = declare_dependency(
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link_with: fftpack_lib,
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dependencies: lib_deps,
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variables: {'includedir': meson.current_source_dir() / 'include'},
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)
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# add the testsuite
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subdir('test')
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if install
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module_id = meson.project_name() / fc_id + '-' + fc.version()
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meson.add_install_script(
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find_program(files('configure'/'install-mod.py')),
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get_option('includedir') / module_id,
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)
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pkg = import('pkgconfig')
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pkg.generate(
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fftpack_lib,
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description: 'fftpack',
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subdirs: ['', module_id],
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)
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endif

‎src/meson.build‎

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srcs += files(
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'cfftb1.f90',
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'dsinqi.f90',
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'fftpack_utils.f90',
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'radbg.f90',
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'cfftf1.f90',
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'dsint.f90',
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'passb2.f90',
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'radf2.f90',
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'cffti1.f90',
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'dsinti.f90',
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'passb3.f90',
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'radf3.f90',
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'cosqb1.f90',
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'dzfftb.f90',
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'passb4.f90',
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'radf4.f90',
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'cosqf1.f90',
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'dzfftf.f90',
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'passb5.f90',
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'radf5.f90',
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'dcosqb.f90',
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'dzffti.f90',
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'passb.f90',
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'radfg.f90',
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'dcosqf.f90',
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'ezfft1.f90',
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'passf2.f90',
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'rfftb1.f90',
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'dcosqi.f90',
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'fftpack_dct.f90',
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'passf3.f90',
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'rfftf1.f90',
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'dcost.f90',
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'fftpack.f90',
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'passf4.f90',
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'rffti1.f90',
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'dcosti.f90',
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'fftpack_fft.f90',
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'passf5.f90',
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'rk.f90',
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'dfftb.f90',
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'fftpack_fftshift.f90',
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'passf.f90',
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'sint1.f90',
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'dfftf.f90',
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'fftpack_ifft.f90',
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'radb2.f90',
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'zfftb.f90',
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'dffti.f90',
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'fftpack_ifftshift.f90',
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'radb3.f90',
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'zfftf.f90',
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'dsinqb.f90',
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'fftpack_irfft.f90',
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'radb4.f90',
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'zffti.f90',
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'dsinqf.f90',
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'fftpack_rfft.f90',
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'radb5.f90'
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)

‎subprojects/test-drive.wrap‎

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[wrap-git]
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directory = test-drive
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url = https://github.com/fortran-lang/test-drive
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revision = v0.4.0

‎test/meson.build‎

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testdrive_dep = dependency('test-drive', fallback: ['test-drive', 'testdrive_dep'])
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tests = [
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'fft',
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'rfft',
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'dct',
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'utils'
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]
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test_srcs = files(
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'test_fftpack.f90'
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)
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foreach t : tests
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test_srcs += files('test_fftpack_@[email protected]'.format(t.underscorify()))
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endforeach
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tester = executable(
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'tester',
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sources: test_srcs,
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dependencies: [fftpack_dep, testdrive_dep]
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)
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foreach t : tests
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test(t, tester, args: t)
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endforeach

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