project('harfbuzz', 'c', 'cpp',
  version: '1.7.6')

cpp = meson.get_compiler('cpp')

python3 = import('python').find_installation('python3')

check_headers = [
  ['unistd.h'],
  ['sys/mman.h'],
  ['xlocale.h'],
  ['stdbool.h'],
]

check_funcs = [
  ['atexit'],
  ['mprotect'],
  ['sysconf'],
  ['getpagesize'],
  ['mmap'],
  ['isatty'],
  ['newlocale'],
  ['strtod_l'],
  ['round'],
]

check_freetype_funcs = [
  ['FT_Get_Var_Blend_Coordinates'],
  ['FT_Set_Var_Blend_Coordinates'],
  ['FT_Done_MM_Var'],
]

check_alignofs = [
  ['struct{char;}', {'conf-name': 'ALIGNOF_STRUCT_CHAR__'}]
]

freetype_dep = dependency('freetype2', required: false)
glib_dep = dependency('glib-2.0', required: false)
gobject_dep = dependency('gobject-2.0', required: false)
cairo_dep = dependency('cairo', required: false)
cairo_ft_dep = dependency('cairo-ft', required: false)
fontconfig_dep = dependency('fontconfig', required: false)
graphite2_dep = dependency('graphite2', required: false)
icu_dep = dependency('icu-uc', required: false)
m_dep = cpp.find_library('m')

deps = [m_dep]

conf = configuration_data()
incbase = include_directories('.')
cpp_args = ['-DHAVE_CONFIG_H']

warn_cflags = [
  '-Wno-non-virtual-dtor',
]

cpp_args += cpp.get_supported_arguments(warn_cflags)

if glib_dep.found()
  conf.set('HAVE_GLIB', 1)
  deps += [glib_dep]
endif

if gobject_dep.found()
  conf.set('HAVE_GOBJECT', 1)
  deps += [gobject_dep]
endif

if cairo_dep.found()
  conf.set('HAVE_CAIRO', 1)
  deps += [cairo_dep]
endif

if cairo_ft_dep.found()
  conf.set('HAVE_CAIRO_FT', 1)
  deps += [cairo_ft_dep]
endif

if graphite2_dep.found()
  conf.set('HAVE_GRAPHITE2', 1)
  deps += [graphite2_dep]
endif

if icu_dep.found()
  conf.set('HAVE_ICU', 1)
  conf.set('HAVE_ICU_BUILTIN', 1)
  deps += [icu_dep]
endif

if freetype_dep.found()
  conf.set('HAVE_FREETYPE', 1)
  deps += [freetype_dep]

  if freetype_dep.type_name() == 'internal'
    foreach func: check_freetype_funcs
      name = func[0]
      conf.set('HAVE_@0@'.format(name.to_upper()), 1)
    endforeach
  else
    check_funcs += check_freetype_funcs
  endif
endif

if fontconfig_dep.found()
  conf.set('HAVE_FONTCONFIG', 1)
  deps += [fontconfig_dep]
endif

if host_machine.system() != 'windows'
  thread_dep = dependency('threads', required: false)

  if thread_dep.found()
    conf.set('HAVE_PTHREAD', 1)
    deps += [thread_dep]
  else
    check_headers += ['sched.h']
    check_funcs += ['sched_yield', {'link_with': 'rt'}]
  endif
endif

conf.set('HAVE_OT', true)
conf.set('HAVE_FALLBACK', true)
conf.set_quoted('PACKAGE_NAME', 'HarfBuzz')
conf.set_quoted('PACKAGE_VERSION', meson.project_version())

foreach check : check_headers
  name = check[0]

  if cpp.has_header(name)
    conf.set('HAVE_@0@'.format(name.to_upper().underscorify()), 1)
  endif
endforeach

foreach check : check_funcs
  name = check[0]
  opts = check.length() > 1 ? check[1] : {}
  link_withs = opts.get('link_with', [])
  extra_deps = []
  found = true

  # First try without linking

  found = cpp.has_function(name)

  if not found and link_withs.length() > 0
    found = true

    foreach link_with : link_withs
      dep = cpp.find_library(link_with, required: false)
      if dep.found()
	extra_deps += dep
      else
	found = false
      endif
    endforeach

    if found
      found = cpp.has_function(name, dependencies: extra_deps)
    endif
  endif

  if found
    deps += extra_deps
    conf.set('HAVE_@0@'.format(name.to_upper()), 1)
  endif
endforeach

foreach check : check_alignofs
  type = check[0]
  opts = check.length() > 1 ? check[1] : {}

  conf_name = opts.get('conf-name', 'ALIGNOF_@0@'.format(type.to_upper()))

  conf.set(conf_name, cpp.alignment(type))
endforeach

if cpp.links(files('meson-cc-tests/intel-atomic-primitives-test.c'), name: 'Intel atomics')
  conf.set('HAVE_INTEL_ATOMIC_PRIMITIVES', 1)
endif

if cpp.links(files('meson-cc-tests/solaris-atomic-operations.c'), name: 'Solaris atomic ops')
  conf.set('HAVE_SOLARIS_ATOMIC_OPS', 1)
endif

subdir('src')
subdir('util')
subdir('test')

configure_file(output: 'config.h', configuration: conf)