arpack_sources = [
  'ARPACK/SRC/cgetv0.f',
  'ARPACK/SRC/cnaitr.f',
  'ARPACK/SRC/cnapps.f',
  'ARPACK/SRC/cnaup2.f',
  'ARPACK/SRC/cnaupd.f',
  'ARPACK/SRC/cneigh.f',
  'ARPACK/SRC/cneupd.f',
  'ARPACK/SRC/cngets.f',
  'ARPACK/SRC/csortc.f',
  'ARPACK/SRC/cstatn.f',
  'ARPACK/SRC/dgetv0.f',
  'ARPACK/SRC/dnaitr.f',
  'ARPACK/SRC/dnapps.f',
  'ARPACK/SRC/dnaup2.f',
  'ARPACK/SRC/dnaupd.f',
  'ARPACK/SRC/dnconv.f',
  'ARPACK/SRC/dneigh.f',
  'ARPACK/SRC/dneupd.f',
  'ARPACK/SRC/dngets.f',
  'ARPACK/SRC/dsaitr.f',
  'ARPACK/SRC/dsapps.f',
  'ARPACK/SRC/dsaup2.f',
  'ARPACK/SRC/dsaupd.f',
  'ARPACK/SRC/dsconv.f',
  'ARPACK/SRC/dseigt.f',
  'ARPACK/SRC/dsesrt.f',
  'ARPACK/SRC/dseupd.f',
  'ARPACK/SRC/dsgets.f',
  'ARPACK/SRC/dsortc.f',
  'ARPACK/SRC/dsortr.f',
  'ARPACK/SRC/dstatn.f',
  'ARPACK/SRC/dstats.f',
  'ARPACK/SRC/dstqrb.f',
  'ARPACK/SRC/sgetv0.f',
  'ARPACK/SRC/snaitr.f',
  'ARPACK/SRC/snapps.f',
  'ARPACK/SRC/snaup2.f',
  'ARPACK/SRC/snaupd.f',
  'ARPACK/SRC/snconv.f',
  'ARPACK/SRC/sneigh.f',
  'ARPACK/SRC/sneupd.f',
  'ARPACK/SRC/sngets.f',
  'ARPACK/SRC/ssaitr.f',
  'ARPACK/SRC/ssapps.f',
  'ARPACK/SRC/ssaup2.f',
  'ARPACK/SRC/ssaupd.f',
  'ARPACK/SRC/ssconv.f',
  'ARPACK/SRC/sseigt.f',
  'ARPACK/SRC/ssesrt.f',
  'ARPACK/SRC/sseupd.f',
  'ARPACK/SRC/ssgets.f',
  'ARPACK/SRC/ssortc.f',
  'ARPACK/SRC/ssortr.f',
  'ARPACK/SRC/sstatn.f',
  'ARPACK/SRC/sstats.f',
  'ARPACK/SRC/sstqrb.f',
  'ARPACK/SRC/zgetv0.f',
  'ARPACK/SRC/znaitr.f',
  'ARPACK/SRC/znapps.f',
  'ARPACK/SRC/znaup2.f',
  'ARPACK/SRC/znaupd.f',
  'ARPACK/SRC/zneigh.f',
  'ARPACK/SRC/zneupd.f',
  'ARPACK/SRC/zngets.f',
  'ARPACK/SRC/zsortc.f',
  'ARPACK/SRC/zstatn.f',
  'ARPACK/UTIL/cmout.f',
  'ARPACK/UTIL/cvout.f',
  'ARPACK/UTIL/dmout.f',
  'ARPACK/UTIL/dvout.f',
  'ARPACK/UTIL/icnteq.f',
  'ARPACK/UTIL/icopy.f',
  'ARPACK/UTIL/iset.f',
  'ARPACK/UTIL/iswap.f',
  'ARPACK/UTIL/ivout.f',
  'ARPACK/UTIL/second_NONE.f',
  'ARPACK/UTIL/smout.f',
  'ARPACK/UTIL/svout.f',
  'ARPACK/UTIL/zmout.f',
  'ARPACK/UTIL/zvout.f'
]

arpack_lib = static_library('arpack_lib',
  arpack_sources,
  fortran_args: fortran_ignore_warnings,
  include_directories: ['ARPACK/SRC']
)

arpack_module = custom_target('arpack_module',
  output: ['_arpackmodule.c', '_arpack-f2pywrappers.f'],
  input: 'arpack.pyf.src',
  command: [py3, generate_f2pymod, '@INPUT@', '-o', '@OUTDIR@']
)

_arpack = py3.extension_module('_arpack',
  [arpack_module, fortranobject_c, g77_abi_wrappers],
  c_args: numpy_nodepr_api,
  link_with: [arpack_lib],
  include_directories: [incdir_numpy, incdir_f2py],
  dependencies: [py3_dep, lapack],
  install: true,
  link_language: 'fortran',
  subdir: 'scipy/sparse/linalg/_eigen/arpack'
)

py3.install_sources([
    '__init__.py',
    'arpack.py',
    'ARPACK/COPYING'
  ],
  pure: false,
  subdir: 'scipy/sparse/linalg/_eigen/arpack'
)

subdir('tests')