path: root/meson.build

project('qemu', ['c'], meson_version: '>=0.55.0',
        default_options: ['warning_level=1', 'c_std=gnu99', 'cpp_std=gnu++11', 'b_lundef=false'],
        version: run_command('head', meson.source_root() / 'VERSION').stdout().strip())

not_found = dependency('', required: false)
keyval = import('unstable-keyval')
ss = import('sourceset')

sh = find_program('sh')
cc = meson.get_compiler('c')
config_host = keyval.load(meson.current_build_dir() / 'config-host.mak')
config_all_disas = keyval.load(meson.current_build_dir() / 'config-all-disas.mak')
enable_modules = 'CONFIG_MODULES' in config_host

add_project_arguments(config_host['QEMU_CFLAGS'].split(),
                      native: false, language: ['c', 'objc'])
add_project_arguments(config_host['QEMU_CXXFLAGS'].split(),
                      native: false, language: 'cpp')
add_project_link_arguments(config_host['QEMU_LDFLAGS'].split(),
                           native: false, language: ['c', 'cpp', 'objc'])
add_project_arguments(config_host['QEMU_INCLUDES'].split(),
                      language: ['c', 'cpp', 'objc'])

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

link_language = meson.get_external_property('link_language', 'cpp')
if link_language == 'cpp'
  add_languages('cpp', required: true, native: false)
endif
if host_machine.system() == 'darwin'
  add_languages('objc', required: false, native: false)
endif

if 'SPARSE_CFLAGS' in config_host
  run_target('sparse',
             command: [find_program('scripts/check_sparse.py'),
                       config_host['SPARSE_CFLAGS'].split(),
                       'compile_commands.json'])
endif

configure_file(input: files('scripts/ninjatool.py'),
               output: 'ninjatool',
               configuration: config_host)

supported_oses = ['windows', 'freebsd', 'netbsd', 'openbsd', 'darwin', 'sunos', 'linux']
supported_cpus = ['ppc', 'ppc64', 's390x', 'sparc64', 'riscv32', 'riscv64', 'x86', 'x86_64',
  'arm', 'aarch64', 'mips', 'mips64', 'sparc', 'sparc64']

cpu = host_machine.cpu_family()
targetos = host_machine.system()

m = cc.find_library('m', required: false)
util = cc.find_library('util', required: false)
winmm = []
socket = []
version_res = []
coref = []
iokit = []
cocoa = []
hvf = []
if targetos == 'windows'
  socket = cc.find_library('ws2_32')
  winmm = cc.find_library('winmm')

  win = import('windows')
  version_res = win.compile_resources('version.rc',
                                      depend_files: files('pc-bios/qemu-nsis.ico'),
                                      include_directories: include_directories('.'))
elif targetos == 'darwin'
  coref = dependency('appleframeworks', modules: 'CoreFoundation')
  iokit = dependency('appleframeworks', modules: 'IOKit')
  cocoa = dependency('appleframeworks', modules: 'Cocoa')
  hvf = dependency('appleframeworks', modules: 'Hypervisor')
elif targetos == 'sunos'
  socket = [cc.find_library('socket'),
            cc.find_library('nsl'),
            cc.find_library('resolv')]
elif targetos == 'haiku'
  socket = [cc.find_library('posix_error_mapper'),
            cc.find_library('network'),
            cc.find_library('bsd')]
endif
glib = declare_dependency(compile_args: config_host['GLIB_CFLAGS'].split(),
                          link_args: config_host['GLIB_LIBS'].split())
gio = not_found
if 'CONFIG_GIO' in config_host
  gio = declare_dependency(compile_args: config_host['GIO_CFLAGS'].split(),
                           link_args: config_host['GIO_LIBS'].split())
endif
lttng = not_found
if 'CONFIG_TRACE_UST' in config_host
  lttng = declare_dependency(link_args: config_host['LTTNG_UST_LIBS'].split())
endif
urcubp = not_found
if 'CONFIG_TRACE_UST' in config_host
  urcubp = declare_dependency(link_args: config_host['URCU_BP_LIBS'].split())
endif
nettle = not_found
if 'CONFIG_NETTLE' in config_host
  nettle = declare_dependency(compile_args: config_host['NETTLE_CFLAGS'].split(),
                              link_args: config_host['NETTLE_LIBS'].split())
endif
gnutls = not_found
if 'CONFIG_GNUTLS' in config_host
  gnutls = declare_dependency(compile_args: config_host['GNUTLS_CFLAGS'].split(),
                              link_args: config_host['GNUTLS_LIBS'].split())
endif
pixman = declare_dependency(compile_args: config_host['PIXMAN_CFLAGS'].split(),
                            link_args: config_host['PIXMAN_LIBS'].split())
pam = not_found
if 'CONFIG_AUTH_PAM' in config_host
  pam = cc.find_library('pam')
endif
libaio = cc.find_library('aio', required: false)
zlib = not_found
if 'CONFIG_ZLIB' in config_host
  zlib = declare_dependency(compile_args: config_host['ZLIB_CFLAGS'].split(),
                            link_args: config_host['ZLIB_LIBS'].split())
endif
linux_io_uring = not_found
if 'CONFIG_LINUX_IO_URING' in config_host
  linux_io_uring = declare_dependency(compile_args: config_host['LINUX_IO_URING_CFLAGS'].split(),
                                      link_args: config_host['LINUX_IO_URING_LIBS'].split())
endif
libxml2 = not_found
if 'CONFIG_LIBXML2' in config_host
  libxml2 = declare_dependency(compile_args: config_host['LIBXML2_CFLAGS'].split(),
                               link_args: config_host['LIBXML2_LIBS'].split())
endif
libnfs = not_found
if 'CONFIG_LIBNFS' in config_host
  libnfs = declare_dependency(link_args: config_host['LIBNFS_LIBS'].split())
endif
libattr = not_found
if 'CONFIG_ATTR' in config_host
  libattr = declare_dependency(link_args: config_host['LIBATTR_LIBS'].split())
endif
seccomp = not_found
if 'CONFIG_SECCOMP' in config_host
  seccomp = declare_dependency(compile_args: config_host['SECCOMP_CFLAGS'].split(),
                               link_args: config_host['SECCOMP_LIBS'].split())
endif
libcap_ng = not_found
if 'CONFIG_LIBCAP_NG' in config_host
  libcap_ng = declare_dependency(link_args: config_host['LIBCAP_NG_LIBS'].split())
endif
xkbcommon = not_found
if 'CONFIG_XKBCOMMON' in config_host
  xkbcommon = declare_dependency(compile_args: config_host['XKBCOMMON_CFLAGS'].split(),
                                 link_args: config_host['XKBCOMMON_LIBS'].split())
endif
slirp = not_found
if config_host.has_key('CONFIG_SLIRP')
  slirp = declare_dependency(compile_args: config_host['SLIRP_CFLAGS'].split(),
                             link_args: config_host['SLIRP_LIBS'].split())
endif
vde = not_found
if config_host.has_key('CONFIG_VDE')
  vde = declare_dependency(link_args: config_host['VDE_LIBS'].split())
endif
pulse = not_found
if 'CONFIG_LIBPULSE' in config_host
  pulse = declare_dependency(compile_args: config_host['PULSE_CFLAGS'].split(),
                             link_args: config_host['PULSE_LIBS'].split())
endif
alsa = not_found
if 'CONFIG_ALSA' in config_host
  alsa = declare_dependency(compile_args: config_host['ALSA_CFLAGS'].split(),
                            link_args: config_host['ALSA_LIBS'].split())
endif
jack = not_found
if 'CONFIG_LIBJACK' in config_host
  jack = declare_dependency(link_args: config_host['JACK_LIBS'].split())
endif
spice = not_found
if 'CONFIG_SPICE' in config_host
  spice = declare_dependency(compile_args: config_host['SPICE_CFLAGS'].split(),
                             link_args: config_host['SPICE_LIBS'].split())
endif
rt = cc.find_library('rt', required: false)
libmpathpersist = not_found
if config_host.has_key('CONFIG_MPATH')
  libmpathpersist = cc.find_library('mpathpersist')
endif
libiscsi = not_found
if 'CONFIG_LIBISCSI' in config_host
  libiscsi = declare_dependency(compile_args: config_host['LIBISCSI_CFLAGS'].split(),
                                link_args: config_host['LIBISCSI_LIBS'].split())
endif
zstd = not_found
if 'CONFIG_ZSTD' in config_host
  zstd = declare_dependency(compile_args: config_host['ZSTD_CFLAGS'].split(),
                            link_args: config_host['ZSTD_LIBS'].split())
endif
gbm = not_found
if 'CONFIG_GBM' in config_host
  gbm = declare_dependency(compile_args: config_host['GBM_CFLAGS'].split(),
                           link_args: config_host['GBM_LIBS'].split())
endif
virgl = not_found
if 'CONFIG_VIRGL' in config_host
  virgl = declare_dependency(compile_args: config_host['VIRGL_CFLAGS'].split(),
                             link_args: config_host['VIRGL_LIBS'].split())
endif
curl = not_found
if 'CONFIG_CURL' in config_host
  curl = declare_dependency(compile_args: config_host['CURL_CFLAGS'].split(),
                            link_args: config_host['CURL_LIBS'].split())
endif
libudev = not_found
if 'CONFIG_LIBUDEV' in config_host
  libudev = declare_dependency(link_args: config_host['LIBUDEV_LIBS'].split())
endif
brlapi = not_found
if 'CONFIG_BRLAPI' in config_host
  brlapi = declare_dependency(link_args: config_host['BRLAPI_LIBS'].split())
endif
sdl = not_found
if 'CONFIG_SDL' in config_host
  sdl = declare_dependency(compile_args: config_host['SDL_CFLAGS'].split(),
                           link_args: config_host['SDL_LIBS'].split())
endif
rbd = not_found
if 'CONFIG_RBD' in config_host
  rbd = declare_dependency(link_args: config_host['RBD_LIBS'].split())
endif
glusterfs = not_found
if 'CONFIG_GLUSTERFS' in config_host
  glusterfs = declare_dependency(compile_args: config_host['GLUSTERFS_CFLAGS'].split(),
                                 link_args: config_host['GLUSTERFS_LIBS'].split())
endif
libssh = not_found
if 'CONFIG_LIBSSH' in config_host
  libssh = declare_dependency(compile_args: config_host['LIBSSH_CFLAGS'].split(),
                              link_args: config_host['LIBSSH_LIBS'].split())
endif
libbzip2 = not_found
if 'CONFIG_BZIP2' in config_host
  libbzip2 = declare_dependency(link_args: config_host['BZIP2_LIBS'].split())
endif
liblzfse = not_found
if 'CONFIG_LZFSE' in config_host
  liblzfse = declare_dependency(link_args: config_host['LZFSE_LIBS'].split())
endif
oss = not_found
if 'CONFIG_AUDIO_OSS' in config_host
  oss = declare_dependency(link_args: config_host['OSS_LIBS'].split())
endif
dsound = not_found
if 'CONFIG_AUDIO_DSOUND' in config_host
  dsound = declare_dependency(link_args: config_host['DSOUND_LIBS'].split())
endif
coreaudio = not_found
if 'CONFIG_AUDIO_COREAUDIO' in config_host
  coreaudio = declare_dependency(link_args: config_host['COREAUDIO_LIBS'].split())
endif
opengl = not_found
if 'CONFIG_OPENGL' in config_host
  opengl = declare_dependency(link_args: config_host['OPENGL_LIBS'].split())
else
endif
gtk = not_found
if 'CONFIG_GTK' in config_host
  gtk = declare_dependency(compile_args: config_host['GTK_CFLAGS'].split(),
                              link_args: config_host['GTK_LIBS'].split())
endif
vte = not_found
if 'CONFIG_VTE' in config_host
  vte = declare_dependency(compile_args: config_host['VTE_CFLAGS'].split(),
                           link_args: config_host['VTE_LIBS'].split())
endif
x11 = not_found
if 'CONFIG_X11' in config_host
  x11 = declare_dependency(compile_args: config_host['X11_CFLAGS'].split(),
                           link_args: config_host['X11_LIBS'].split())
endif
curses = not_found
if 'CONFIG_CURSES' in config_host
  curses = declare_dependency(compile_args: config_host['CURSES_CFLAGS'].split(),
                              link_args: config_host['CURSES_LIBS'].split())
endif
iconv = not_found
if 'CONFIG_ICONV' in config_host
  iconv = declare_dependency(compile_args: config_host['ICONV_CFLAGS'].split(),
                             link_args: config_host['ICONV_LIBS'].split())
endif
gio = not_found
if 'CONFIG_GIO' in config_host
  gio = declare_dependency(compile_args: config_host['GIO_CFLAGS'].split(),
                           link_args: config_host['GIO_LIBS'].split())
endif
png = not_found
if 'CONFIG_VNC_PNG' in config_host
  png = declare_dependency(compile_args: config_host['PNG_CFLAGS'].split(),
                           link_args: config_host['PNG_LIBS'].split())
endif
jpeg = not_found
if 'CONFIG_VNC_JPEG' in config_host
  jpeg = declare_dependency(compile_args: config_host['JPEG_CFLAGS'].split(),
                            link_args: config_host['JPEG_LIBS'].split())
endif
sasl = not_found
if 'CONFIG_VNC_SASL' in config_host
  sasl = declare_dependency(compile_args: config_host['SASL_CFLAGS'].split(),
                            link_args: config_host['SASL_LIBS'].split())
endif
fdt = not_found
if 'CONFIG_FDT' in config_host
  fdt = declare_dependency(compile_args: config_host['FDT_CFLAGS'].split(),
                           link_args: config_host['FDT_LIBS'].split())
endif
snappy = not_found
if 'CONFIG_SNAPPY' in config_host
  snappy = declare_dependency(link_args: config_host['SNAPPY_LIBS'].split())
endif
lzo = not_found
if 'CONFIG_LZO' in config_host
  lzo = declare_dependency(link_args: config_host['LZO_LIBS'].split())
endif
rdma = not_found
if 'CONFIG_RDMA' in config_host
  rdma = declare_dependency(link_args: config_host['RDMA_LIBS'].split())
endif
numa = not_found
if 'CONFIG_NUMA' in config_host
  numa = declare_dependency(link_args: config_host['NUMA_LIBS'].split())
endif
xen = not_found
if 'CONFIG_XEN_BACKEND' in config_host
  xen = declare_dependency(compile_args: config_host['XEN_CFLAGS'].split(),
                           link_args: config_host['XEN_LIBS'].split())
endif
cacard = not_found
if 'CONFIG_SMARTCARD' in config_host
  cacard = declare_dependency(compile_args: config_host['SMARTCARD_CFLAGS'].split(),
                              link_args: config_host['SMARTCARD_LIBS'].split())
endif
usbredir = not_found
if 'CONFIG_USB_REDIR' in config_host
  usbredir = declare_dependency(compile_args: config_host['USB_REDIR_CFLAGS'].split(),
                                link_args: config_host['USB_REDIR_LIBS'].split())
endif
libusb = not_found
if 'CONFIG_USB_LIBUSB' in config_host
  libusb = declare_dependency(compile_args: config_host['LIBUSB_CFLAGS'].split(),
                              link_args: config_host['LIBUSB_LIBS'].split())
endif

create_config = find_program('scripts/create_config')
minikconf = find_program('scripts/minikconf.py')
target_dirs = config_host['TARGET_DIRS'].split()
have_user = false
have_system = false
config_devices_mak_list = []
config_devices_h = {}
config_target_mak = {}
kconfig_external_symbols = [
  'CONFIG_KVM',
  'CONFIG_XEN',
  'CONFIG_TPM',
  'CONFIG_SPICE',
  'CONFIG_IVSHMEM',
  'CONFIG_OPENGL',
  'CONFIG_X11',
  'CONFIG_VHOST_USER',
  'CONFIG_VHOST_KERNEL',
  'CONFIG_VIRTFS',
  'CONFIG_LINUX',
  'CONFIG_PVRDMA',
]
foreach target : target_dirs
  have_user = have_user or target.endswith('-user')
  config_target = keyval.load(meson.current_build_dir() / target / 'config-target.mak') + config_host

  if target.endswith('-softmmu')
    have_system = true

    base_kconfig = []
    foreach sym : kconfig_external_symbols
      if sym in config_target
        base_kconfig += '@0@=y'.format(sym)
      endif
    endforeach

    config_devices_mak = target + '-config-devices.mak'
    config_devices_mak = configure_file(
      input: ['default-configs' / target + '.mak', 'Kconfig'],
      output: config_devices_mak,
      depfile: config_devices_mak + '.d',
      capture: true,
      command: [minikconf, config_host['CONFIG_MINIKCONF_MODE'],
                config_devices_mak, '@DEPFILE@', '@INPUT@',
                base_kconfig])
    config_devices_h += {target: custom_target(
      target + '-config-devices.h',
      input: config_devices_mak,
      output: target + '-config-devices.h',
      capture: true,
      command: [create_config, '@INPUT@'])}
    config_devices_mak_list += config_devices_mak
    config_target += keyval.load(config_devices_mak)
  endif
  config_target_mak += {target: config_target}
endforeach
have_tools = 'CONFIG_TOOLS' in config_host
have_block = have_system or have_tools

grepy = find_program('scripts/grepy.sh')
# This configuration is used to build files that are shared by
# multiple binaries, and then extracted out of the "common"
# static_library target.
#
# We do not use all_sources()/all_dependencies(), because it would
# build literally all source files, including devices only used by
# targets that are not built for this compilation.  The CONFIG_ALL
# pseudo symbol replaces it.

if have_system
  config_all_devices_mak = configure_file(
    output: 'config-all-devices.mak',
    input: config_devices_mak_list,
    capture: true,
    command: [grepy, '@INPUT@'],
  )
  config_all_devices = keyval.load(config_all_devices_mak)
else
  config_all_devices = {}
endif
config_all = config_all_devices
config_all += config_host
config_all += config_all_disas
config_all += {
  'CONFIG_XEN': config_host.has_key('CONFIG_XEN_BACKEND'),
  'CONFIG_SOFTMMU': have_system,
  'CONFIG_USER_ONLY': have_user,
  'CONFIG_ALL': true,
}

# Generators

genh = []
hxtool = find_program('scripts/hxtool')
shaderinclude = find_program('scripts/shaderinclude.pl')
qapi_gen = find_program('scripts/qapi-gen.py')
qapi_gen_depends = [ meson.source_root() / 'scripts/qapi/__init__.py',
                     meson.source_root() / 'scripts/qapi/commands.py',
                     meson.source_root() / 'scripts/qapi/common.py',
                     meson.source_root() / 'scripts/qapi/doc.py',
                     meson.source_root() / 'scripts/qapi/error.py',
                     meson.source_root() / 'scripts/qapi/events.py',
                     meson.source_root() / 'scripts/qapi/expr.py',
                     meson.source_root() / 'scripts/qapi/gen.py',
                     meson.source_root() / 'scripts/qapi/introspect.py',
                     meson.source_root() / 'scripts/qapi/parser.py',
                     meson.source_root() / 'scripts/qapi/schema.py',
                     meson.source_root() / 'scripts/qapi/source.py',
                     meson.source_root() / 'scripts/qapi/types.py',
                     meson.source_root() / 'scripts/qapi/visit.py',
                     meson.source_root() / 'scripts/qapi/common.py',
                     meson.source_root() / 'scripts/qapi/doc.py',
                     meson.source_root() / 'scripts/qapi-gen.py'
]

tracetool = [
  python, files('scripts/tracetool.py'),
   '--backend=' + config_host['TRACE_BACKENDS']
]

qemu_version_cmd = [find_program('scripts/qemu-version.sh'),
                    meson.current_source_dir(),
                    config_host['PKGVERSION'], config_host['VERSION']]
qemu_version = custom_target('qemu-version.h',
                             output: 'qemu-version.h',
                             command: qemu_version_cmd,
                             capture: true,
                             build_by_default: true,
                             build_always_stale: true)
genh += qemu_version

config_host_h = custom_target('config-host.h',
                              input: meson.current_build_dir() / 'config-host.mak',
                              output: 'config-host.h',
                              capture: true,
                              command: [create_config, '@INPUT@'])
genh += config_host_h

hxdep = []
hx_headers = [
  ['qemu-options.hx', 'qemu-options.def'],
  ['qemu-img-cmds.hx', 'qemu-img-cmds.h'],
]
if have_system
  hx_headers += [
    ['hmp-commands.hx', 'hmp-commands.h'],
    ['hmp-commands-info.hx', 'hmp-commands-info.h'],
  ]
endif
foreach d : hx_headers
  hxdep += custom_target(d[1],
                input: files(d[0]),
                output: d[1],
                capture: true,
                build_by_default: true, # to be removed when added to a target
                command: [hxtool, '-h', '@INPUT0@'])
endforeach
genh += hxdep

# Collect sourcesets.

util_ss = ss.source_set()
stub_ss = ss.source_set()
trace_ss = ss.source_set()
block_ss = ss.source_set()
blockdev_ss = ss.source_set()
qmp_ss = ss.source_set()
common_ss = ss.source_set()
softmmu_ss = ss.source_set()
user_ss = ss.source_set()
bsd_user_ss = ss.source_set()
linux_user_ss = ss.source_set()
specific_ss = ss.source_set()

modules = {}
hw_arch = {}
target_arch = {}
target_softmmu_arch = {}

###############
# Trace files #
###############

trace_events_subdirs = [
  'accel/kvm',
  'accel/tcg',
  'crypto',
  'monitor',
]
if have_user
  trace_events_subdirs += [ 'linux-user' ]
endif
if have_block
  trace_events_subdirs += [
    'authz',
    'block',
    'io',
    'nbd',
    'scsi',
  ]
endif
if have_system
  trace_events_subdirs += [
    'audio',
    'backends',
    'backends/tpm',
    'chardev',
    'hw/9pfs',
    'hw/acpi',
    'hw/alpha',
    'hw/arm',
    'hw/audio',
    'hw/block',
    'hw/block/dataplane',
    'hw/char',
    'hw/display',
    'hw/dma',
    'hw/hppa',
    'hw/hyperv',
    'hw/i2c',
    'hw/i386',
    'hw/i386/xen',
    'hw/ide',
    'hw/input',
    'hw/intc',
    'hw/isa',
    'hw/mem',
    'hw/mips',
    'hw/misc',
    'hw/misc/macio',
    'hw/net',
    'hw/nvram',
    'hw/pci',
    'hw/pci-host',
    'hw/ppc',
    'hw/rdma',
    'hw/rdma/vmw',
    'hw/rtc',
    'hw/s390x',
    'hw/scsi',
    'hw/sd',
    'hw/sparc',
    'hw/sparc64',
    'hw/ssi',
    'hw/timer',
    'hw/tpm',
    'hw/usb',
    'hw/vfio',
    'hw/virtio',
    'hw/watchdog',
    'hw/xen',
    'hw/gpio',
    'hw/riscv',
    'migration',
    'net',
    'ui',
  ]
endif
trace_events_subdirs += [
  'hw/core',
  'qapi',
  'qom',
  'target/arm',
  'target/hppa',
  'target/i386',
  'target/mips',
  'target/ppc',
  'target/riscv',
  'target/s390x',
  'target/sparc',
  'util',
]

subdir('qapi')
subdir('qobject')
subdir('stubs')
subdir('trace')
subdir('util')
subdir('qom')
subdir('authz')
subdir('crypto')
subdir('ui')


if enable_modules
  libmodulecommon = static_library('module-common', files('module-common.c') + genh, pic: true, c_args: '-DBUILD_DSO')
  modulecommon = declare_dependency(link_whole: libmodulecommon, compile_args: '-DBUILD_DSO')
endif

# Build targets from sourcesets

stub_ss = stub_ss.apply(config_all, strict: false)

util_ss.add_all(trace_ss)
util_ss = util_ss.apply(config_all, strict: false)
libqemuutil = static_library('qemuutil',
                             sources: util_ss.sources() + stub_ss.sources() + genh,
                             dependencies: [util_ss.dependencies(), m, glib, socket])
qemuutil = declare_dependency(link_with: libqemuutil,
                              sources: genh + version_res)

decodetree = generator(find_program('scripts/decodetree.py'),
                       output: 'decode-@BASENAME@.c.inc',
                       arguments: ['@INPUT@', '@EXTRA_ARGS@', '-o', '@OUTPUT@'])

subdir('audio')
subdir('io')
subdir('chardev')
subdir('fsdev')
subdir('libdecnumber')
subdir('target')
subdir('dump')

block_ss.add(files(
  'block.c',
  'blockjob.c',
  'job.c',
  'qemu-io-cmds.c',
))
block_ss.add(when: 'CONFIG_REPLICATION', if_true: files('replication.c'))

subdir('nbd')
subdir('scsi')
subdir('block')

blockdev_ss.add(files(
  'blockdev.c',
  'blockdev-nbd.c',
  'iothread.c',
  'job-qmp.c',
))

# os-posix.c contains POSIX-specific functions used by qemu-storage-daemon,
# os-win32.c does not
blockdev_ss.add(when: 'CONFIG_POSIX', if_true: files('os-posix.c'))
softmmu_ss.add(when: 'CONFIG_WIN32', if_true: [files('os-win32.c')])

softmmu_ss.add_all(blockdev_ss)
softmmu_ss.add(files(
  'bootdevice.c',
  'dma-helpers.c',
  'qdev-monitor.c',
), sdl)

softmmu_ss.add(when: 'CONFIG_TPM', if_true: files('tpm.c'))
softmmu_ss.add(when: 'CONFIG_SECCOMP', if_true: [files('qemu-seccomp.c'), seccomp])
softmmu_ss.add(when: ['CONFIG_FDT', fdt],  if_true: [files('device_tree.c')])

common_ss.add(files('cpus-common.c'))

subdir('softmmu')
subdir('backends')
subdir('disas')
subdir('migration')
subdir('monitor')
subdir('net')
subdir('replay')
subdir('hw')
subdir('accel')
subdir('bsd-user')
subdir('linux-user')

bsd_user_ss.add(files('gdbstub.c'))
specific_ss.add_all(when: 'CONFIG_BSD_USER', if_true: bsd_user_ss)

linux_user_ss.add(files('gdbstub.c', 'thunk.c'))
specific_ss.add_all(when: 'CONFIG_LINUX_USER', if_true: linux_user_ss)

# needed for fuzzing binaries
subdir('tests/qtest/libqos')

block_mods = []
softmmu_mods = []
foreach d, list : modules
  foreach m, module_ss : list
    if enable_modules and targetos != 'windows'
      module_ss = module_ss.apply(config_host, strict: false)
      sl = static_library(d + '-' + m, [genh, module_ss.sources()],
                          dependencies: [modulecommon, module_ss.dependencies()], pic: true)
      if d == 'block'
        block_mods += sl
      else
        softmmu_mods += sl
      endif
    else
      if d == 'block'
        block_ss.add_all(module_ss)
      else
        softmmu_ss.add_all(module_ss)
      endif
    endif
  endforeach
endforeach

nm = find_program('nm')
undefsym = find_program('scripts/undefsym.sh')
block_syms = custom_target('block.syms', output: 'block.syms',
                             input: [libqemuutil, block_mods],
                             capture: true,
                             command: [undefsym, nm, '@INPUT@'])
qemu_syms = custom_target('qemu.syms', output: 'qemu.syms',
                             input: [libqemuutil, softmmu_mods],
                             capture: true,
                             command: [undefsym, nm, '@INPUT@'])

block_ss = block_ss.apply(config_host, strict: false)
libblock = static_library('block', block_ss.sources() + genh,
                          dependencies: block_ss.dependencies(),
                          link_depends: block_syms,
                          name_suffix: 'fa',
                          build_by_default: false)

block = declare_dependency(link_whole: [libblock],
                           link_args: '@block.syms',
                           dependencies: [crypto, io])

qmp_ss = qmp_ss.apply(config_host, strict: false)
libqmp = static_library('qmp', qmp_ss.sources() + genh,
                        dependencies: qmp_ss.dependencies(),
                        name_suffix: 'fa',
                        build_by_default: false)

qmp = declare_dependency(link_whole: [libqmp])

foreach m : block_mods + softmmu_mods
  shared_module(m.name(),
                name_prefix: '',
                link_whole: m,
                install: true,
                install_dir: config_host['qemu_moddir'])
endforeach

common_ss.add_all(when: 'CONFIG_SOFTMMU', if_true: softmmu_ss)
common_ss.add_all(when: 'CONFIG_USER_ONLY', if_true: user_ss)

common_all = common_ss.apply(config_all, strict: false)
common_all = static_library('common',
                            build_by_default: false,
                            sources: common_all.sources() + genh,
                            dependencies: common_all.dependencies(),
                            name_suffix: 'fa')

foreach target : target_dirs
  config_target = config_target_mak[target]
  target_name = config_target['TARGET_NAME']
  arch = config_target['TARGET_BASE_ARCH']
  arch_srcs = []

  target_inc = [include_directories('target' / config_target['TARGET_BASE_ARCH'])]
  if targetos == 'linux'
    target_inc += include_directories('linux-headers', is_system: true)
  endif
  if target.endswith('-softmmu')
    qemu_target_name = 'qemu-system-' + target_name
    target_type='system'
    t = target_softmmu_arch[arch].apply(config_target, strict: false)
    arch_srcs += t.sources()

    hw_dir = target_name == 'sparc64' ? 'sparc64' : arch
    hw = hw_arch[hw_dir].apply(config_target, strict: false)
    arch_srcs += hw.sources()

    arch_srcs += config_devices_h[target]
  else
    abi = config_target['TARGET_ABI_DIR']
    target_type='user'
    qemu_target_name = 'qemu-' + target_name
    if 'CONFIG_LINUX_USER' in config_target
      base_dir = 'linux-user'
      target_inc += include_directories('linux-user/host/' / config_host['ARCH'])
    else
      base_dir = 'bsd-user'
    endif
    target_inc += include_directories(
      base_dir,
      base_dir / abi,
    )
    if 'CONFIG_LINUX_USER' in config_target
      dir = base_dir / abi
      arch_srcs += files(dir / 'signal.c', dir / 'cpu_loop.c')
      if config_target.has_key('TARGET_SYSTBL_ABI')
        arch_srcs += \
          syscall_nr_generators[abi].process(base_dir / abi / config_target['TARGET_SYSTBL'],
                                             extra_args : config_target['TARGET_SYSTBL_ABI'])
      endif
    endif
  endif

  t = target_arch[arch].apply(config_target, strict: false)
  arch_srcs += t.sources()

  target_common = common_ss.apply(config_target, strict: false)
  objects = common_all.extract_objects(target_common.sources())

  # TODO: Change to generator once obj-y goes away
  config_target_h = custom_target(target + '-config-target.h',
                              input: meson.current_build_dir() / target / 'config-target.mak',
                              output: target + '-config-target.h',
                              capture: true,
                              command: [create_config, '@INPUT@'])

  target_specific = specific_ss.apply(config_target, strict: false)
  arch_srcs += target_specific.sources()

  static_library('qemu-' + target,
                 sources: arch_srcs + [config_target_h] + genh,
                 objects: objects,
                 include_directories: target_inc,
                 c_args: ['-DNEED_CPU_H',
                          '-DCONFIG_TARGET="@0@-config-target.h"'.format(target),
                          '-DCONFIG_DEVICES="@0@-config-devices.h"'.format(target)],
                 name_suffix: 'fa')
endforeach

# Other build targets

if 'CONFIG_GUEST_AGENT' in config_host
  subdir('qga')
endif

if have_tools
  qemu_img = executable('qemu-img', [files('qemu-img.c'), hxdep],
             dependencies: [authz, block, crypto, io, qom, qemuutil], install: true)
  qemu_io = executable('qemu-io', files('qemu-io.c'),
             dependencies: [block, qemuutil], install: true)
  if targetos == 'linux' or targetos == 'sunos' or targetos.endswith('bsd')
    qemu_nbd = executable('qemu-nbd', files('qemu-nbd.c'),
               dependencies: [block, qemuutil], install: true)
  endif

  subdir('storage-daemon')
  subdir('contrib/rdmacm-mux')
  subdir('contrib/elf2dmp')

  if 'CONFIG_XKBCOMMON' in config_host
    executable('qemu-keymap', files('qemu-keymap.c', 'ui/input-keymap.c'),
               dependencies: [qemuutil, xkbcommon], install: true)
  endif

  executable('qemu-edid', files('qemu-edid.c', 'hw/display/edid-generate.c'),
             dependencies: qemuutil,
             install: true)

  if 'CONFIG_VHOST_USER' in config_host
    subdir('contrib/libvhost-user')
    subdir('contrib/vhost-user-blk')
    if 'CONFIG_LINUX' in config_host
      subdir('contrib/vhost-user-gpu')
    endif
    subdir('contrib/vhost-user-input')
    subdir('contrib/vhost-user-scsi')
  endif

  if targetos == 'linux'
    executable('qemu-bridge-helper', files('qemu-bridge-helper.c'),
               dependencies: [qemuutil, libcap_ng],
               install: true,
               install_dir: get_option('libexecdir'))

    executable('qemu-pr-helper', files('scsi/qemu-pr-helper.c', 'scsi/utils.c'),
               dependencies: [authz, crypto, io, qom, qemuutil,
                              libcap_ng, libudev, libmpathpersist],
               install: true)
  endif

  if 'CONFIG_IVSHMEM' in config_host
    subdir('contrib/ivshmem-client')
    subdir('contrib/ivshmem-server')
  endif
endif

subdir('tools')
subdir('pc-bios')
subdir('tests')

summary_info = {}
summary_info += {'Install prefix':    config_host['prefix']}
summary_info += {'BIOS directory':    config_host['qemu_datadir']}
summary_info += {'firmware path':     config_host['qemu_firmwarepath']}
summary_info += {'binary directory':  config_host['bindir']}
summary_info += {'library directory': config_host['libdir']}
summary_info += {'module directory':  config_host['qemu_moddir']}
summary_info += {'libexec directory': config_host['libexecdir']}
summary_info += {'include directory': config_host['includedir']}
summary_info += {'config directory':  config_host['sysconfdir']}
if targetos != 'windows'
  summary_info += {'local state directory': config_host['qemu_localstatedir']}
  summary_info += {'Manual directory':      config_host['mandir']}
else
  summary_info += {'local state directory': 'queried at runtime'}
endif
summary_info += {'Build directory':   meson.current_build_dir()}
summary_info += {'Source path':       meson.current_source_dir()}
summary_info += {'GIT binary':        config_host['GIT']}
summary_info += {'GIT submodules':    config_host['GIT_SUBMODULES']}
summary_info += {'C compiler':        meson.get_compiler('c').cmd_array()[0]}
summary_info += {'Host C compiler':   meson.get_compiler('c', native: true).cmd_array()[0]}
if link_language == 'cpp'
  summary_info += {'C++ compiler':      meson.get_compiler('cpp').cmd_array()[0]}
else
  summary_info += {'C++ compiler':      false}
endif
if targetos == 'darwin'
  summary_info += {'Objective-C compiler': meson.get_compiler('objc').cmd_array()[0]}
endif
summary_info += {'ARFLAGS':           config_host['ARFLAGS']}
summary_info += {'CFLAGS':            config_host['CFLAGS']}
summary_info += {'QEMU_CFLAGS':       config_host['QEMU_CFLAGS']}
summary_info += {'QEMU_LDFLAGS':      config_host['QEMU_LDFLAGS']}
summary_info += {'make':              config_host['MAKE']}
summary_info += {'install':           config_host['INSTALL']}
summary_info += {'python':            '@0@ (version: @1@)'.format(python.full_path(), python.language_version())}
summary_info += {'sphinx-build':      config_host['SPHINX_BUILD']}
summary_info += {'genisoimage':       config_host['GENISOIMAGE']}
# TODO: add back version
summary_info += {'slirp support':     config_host.has_key('CONFIG_SLIRP')}
if config_host.has_key('CONFIG_SLIRP')
  summary_info += {'smbd':            config_host['CONFIG_SMBD_COMMAND']}
endif
summary_info += {'module support':    config_host.has_key('CONFIG_MODULES')}
if config_host.has_key('CONFIG_MODULES')
  summary_info += {'alternative module path': config_host.has_key('CONFIG_MODULE_UPGRADES')}
endif
summary_info += {'host CPU':          cpu}
summary_info += {'host endianness':   build_machine.endian()}
summary_info += {'target list':       config_host['TARGET_DIRS']}
summary_info += {'gprof enabled':     config_host.has_key('CONFIG_GPROF')}
summary_info += {'sparse enabled':    meson.get_compiler('c').cmd_array().contains('cgcc')}
summary_info += {'strip binaries':    get_option('strip')}
summary_info += {'profiler':          config_host.has_key('CONFIG_PROFILER')}
summary_info += {'static build':      config_host.has_key('CONFIG_TOOLS')}
if targetos == 'darwin'
  summary_info += {'Cocoa support': config_host.has_key('CONFIG_COCOA')}
endif
# TODO: add back version
summary_info += {'SDL support':       config_host.has_key('CONFIG_SDL')}
summary_info += {'SDL image support': config_host.has_key('CONFIG_SDL_IMAGE')}
# TODO: add back version
summary_info += {'GTK support':       config_host.has_key('CONFIG_GTK')}
summary_info += {'GTK GL support':    config_host.has_key('CONFIG_GTK_GL')}
# TODO: add back version
summary_info += {'VTE support':       config_host.has_key('CONFIG_VTE')}
summary_info += {'TLS priority':      config_host['CONFIG_TLS_PRIORITY']}
summary_info += {'GNUTLS support':    config_host.has_key('CONFIG_GNUTLS')}
# TODO: add back version
summary_info += {'libgcrypt':         config_host.has_key('CONFIG_GCRYPT')}
if config_host.has_key('CONFIG_GCRYPT')
   summary_info += {'  hmac':            config_host.has_key('CONFIG_GCRYPT_HMAC')}
   summary_info += {'  XTS':             not config_host.has_key('CONFIG_QEMU_PRIVATE_XTS')}
endif
# TODO: add back version
summary_info += {'nettle':            config_host.has_key('CONFIG_NETTLE')}
if config_host.has_key('CONFIG_NETTLE')
   summary_info += {'  XTS':             not config_host.has_key('CONFIG_QEMU_PRIVATE_XTS')}
endif
summary_info += {'libtasn1':          config_host.has_key('CONFIG_TASN1')}
summary_info += {'PAM':               config_host.has_key('CONFIG_AUTH_PAM')}
summary_info += {'iconv support':     config_host.has_key('CONFIG_ICONV')}
summary_info += {'curses support':    config_host.has_key('CONFIG_CURSES')}
# TODO: add back version
summary_info += {'virgl support':     config_host.has_key('CONFIG_VIRGL')}
summary_info += {'curl support':      config_host.has_key('CONFIG_CURL')}
summary_info += {'mingw32 support':   targetos == 'windows'}
summary_info += {'Audio drivers':     config_host['CONFIG_AUDIO_DRIVERS']}
summary_info += {'Block whitelist (rw)': config_host['CONFIG_BDRV_RW_WHITELIST']}
summary_info += {'Block whitelist (ro)': config_host['CONFIG_BDRV_RO_WHITELIST']}
summary_info += {'VirtFS support':    config_host.has_key('CONFIG_VIRTFS')}
summary_info += {'Multipath support': config_host.has_key('CONFIG_MPATH')}
summary_info += {'VNC support':       config_host.has_key('CONFIG_VNC')}
if config_host.has_key('CONFIG_VNC')
  summary_info += {'VNC SASL support':  config_host.has_key('CONFIG_VNC_SASL')}
  summary_info += {'VNC JPEG support':  config_host.has_key('CONFIG_VNC_JPEG')}
  summary_info += {'VNC PNG support':   config_host.has_key('CONFIG_VNC_PNG')}
endif
summary_info += {'xen support':       config_host.has_key('CONFIG_XEN_BACKEND')}
if config_host.has_key('CONFIG_XEN_BACKEND')
  summary_info += {'xen ctrl version':  config_host['CONFIG_XEN_CTRL_INTERFACE_VERSION']}
endif
summary_info += {'brlapi support':    config_host.has_key('CONFIG_BRLAPI')}
summary_info += {'Documentation':     config_host.has_key('BUILD_DOCS')}
summary_info += {'PIE':               get_option('b_pie')}
summary_info += {'vde support':       config_host.has_key('CONFIG_VDE')}
summary_info += {'netmap support':    config_host.has_key('CONFIG_NETMAP')}
summary_info += {'Linux AIO support': config_host.has_key('CONFIG_LINUX_AIO')}
summary_info += {'Linux io_uring support': config_host.has_key('CONFIG_LINUX_IO_URING')}
summary_info += {'ATTR/XATTR support': config_host.has_key('CONFIG_ATTR')}
summary_info += {'Install blobs':     config_host.has_key('INSTALL_BLOBS')}
# TODO: add back KVM/HAX/HVF/WHPX/TCG
#summary_info += {'KVM support':       have_kvm'}
#summary_info += {'HAX support':       have_hax'}
#summary_info += {'HVF support':       have_hvf'}
#summary_info += {'WHPX support':      have_whpx'}
#summary_info += {'TCG support':       have_tcg'}
#if get_option('tcg')
#  summary_info += {'TCG debug enabled': config_host.has_key('CONFIG_DEBUG_TCG')}
#  summary_info += {'TCG interpreter':   config_host.has_key('CONFIG_TCG_INTERPRETER')}
#endif
summary_info += {'malloc trim support': config_host.has_key('CONFIG_MALLOC_TRIM')}
summary_info += {'RDMA support':      config_host.has_key('CONFIG_RDMA')}
summary_info += {'PVRDMA support':    config_host.has_key('CONFIG_PVRDMA')}
summary_info += {'fdt support':       config_host.has_key('CONFIG_FDT')}
summary_info += {'membarrier':        config_host.has_key('CONFIG_MEMBARRIER')}
summary_info += {'preadv support':    config_host.has_key('CONFIG_PREADV')}
summary_info += {'fdatasync':         config_host.has_key('CONFIG_FDATASYNC')}
summary_info += {'madvise':           config_host.has_key('CONFIG_MADVISE')}
summary_info += {'posix_madvise':     config_host.has_key('CONFIG_POSIX_MADVISE')}
summary_info += {'posix_memalign':    config_host.has_key('CONFIG_POSIX_MEMALIGN')}
summary_info += {'libcap-ng support': config_host.has_key('CONFIG_LIBCAP_NG')}
summary_info += {'vhost-net support': config_host.has_key('CONFIG_VHOST_NET')}
summary_info += {'vhost-crypto support': config_host.has_key('CONFIG_VHOST_CRYPTO')}
summary_info += {'vhost-scsi support': config_host.has_key('CONFIG_VHOST_SCSI')}
summary_info += {'vhost-vsock support': config_host.has_key('CONFIG_VHOST_VSOCK')}
summary_info += {'vhost-user support': config_host.has_key('CONFIG_VHOST_KERNEL')}
summary_info += {'vhost-user-fs support': config_host.has_key('CONFIG_VHOST_USER_FS')}
summary_info += {'vhost-vdpa support': config_host.has_key('CONFIG_VHOST_VDPA')}
summary_info += {'Trace backends':    config_host['TRACE_BACKENDS']}
if config_host['TRACE_BACKENDS'].split().contains('simple')
  summary_info += {'Trace output file': config_host['CONFIG_TRACE_FILE'] + '-<pid>'}
endif
# TODO: add back protocol and server version
summary_info += {'spice support':     config_host.has_key('CONFIG_SPICE')}
summary_info += {'rbd support':       config_host.has_key('CONFIG_RBD')}
summary_info += {'xfsctl support':    config_host.has_key('CONFIG_XFS')}
summary_info += {'smartcard support': config_host.has_key('CONFIG_SMARTCARD')}
summary_info += {'libusb':            config_host.has_key('CONFIG_USB_LIBUSB')}
summary_info += {'usb net redir':     config_host.has_key('CONFIG_USB_REDIR')}
summary_info += {'OpenGL support':    config_host.has_key('CONFIG_OPENGL')}
summary_info += {'OpenGL dmabufs':    config_host.has_key('CONFIG_OPENGL_DMABUF')}
summary_info += {'libiscsi support':  config_host.has_key('CONFIG_LIBISCSI')}
summary_info += {'libnfs support':    config_host.has_key('CONFIG_LIBNFS')}
summary_info += {'build guest agent': config_host.has_key('CONFIG_GUEST_AGENT')}
if targetos == 'windows'
  if 'WIN_SDK' in config_host
    summary_info += {'Windows SDK':       config_host['WIN_SDK']}
  endif
  summary_info += {'QGA VSS support':   config_host.has_key('CONFIG_QGA_VSS')}
  summary_info += {'QGA w32 disk info': config_host.has_key('CONFIG_QGA_NTDDSCSI')}
  summary_info += {'QGA MSI support':   config_host.has_key('CONFIG_QGA_MSI_ENABLED')}
endif
summary_info += {'seccomp support':   config_host.has_key('CONFIG_SECCOMP')}
summary_info += {'coroutine backend': config_host['CONFIG_COROUTINE_BACKEND']}
summary_info += {'coroutine pool':    config_host['CONFIG_COROUTINE_POOL'] == '1'}
summary_info += {'debug stack usage': config_host.has_key('CONFIG_DEBUG_STACK_USAGE')}
summary_info += {'mutex debugging':   config_host.has_key('CONFIG_DEBUG_MUTEX')}
summary_info += {'crypto afalg':      config_host.has_key('CONFIG_AF_ALG')}
summary_info += {'GlusterFS support': config_host.has_key('CONFIG_GLUSTERFS')}
summary_info += {'gcov':              get_option('b_coverage')}
summary_info += {'TPM support':       config_host.has_key('CONFIG_TPM')}
summary_info += {'libssh support':    config_host.has_key('CONFIG_LIBSSH')}
summary_info += {'QOM debugging':     config_host.has_key('CONFIG_QOM_CAST_DEBUG')}
summary_info += {'Live block migration': config_host.has_key('CONFIG_LIVE_BLOCK_MIGRATION')}
summary_info += {'lzo support':       config_host.has_key('CONFIG_LZO')}
summary_info += {'snappy support':    config_host.has_key('CONFIG_SNAPPY')}
summary_info += {'bzip2 support':     config_host.has_key('CONFIG_BZIP2')}
summary_info += {'lzfse support':     config_host.has_key('CONFIG_LZFSE')}
summary_info += {'zstd support':      config_host.has_key('CONFIG_ZSTD')}
summary_info += {'NUMA host support': config_host.has_key('CONFIG_NUMA')}
summary_info += {'libxml2':           config_host.has_key('CONFIG_LIBXML2')}
summary_info += {'tcmalloc support':  config_host.has_key('CONFIG_TCMALLOC')}
summary_info += {'jemalloc support':  config_host.has_key('CONFIG_JEMALLOC')}
summary_info += {'avx2 optimization': config_host.has_key('CONFIG_AVX2_OPT')}
summary_info += {'avx512f optimization': config_host.has_key('CONFIG_AVX512F_OPT')}
summary_info += {'replication support': config_host.has_key('CONFIG_REPLICATION')}
summary_info += {'bochs support':     config_host.has_key('CONFIG_BOCHS')}
summary_info += {'cloop support':     config_host.has_key('CONFIG_CLOOP')}
summary_info += {'dmg support':       config_host.has_key('CONFIG_DMG')}
summary_info += {'qcow v1 support':   config_host.has_key('CONFIG_QCOW1')}
summary_info += {'vdi support':       config_host.has_key('CONFIG_VDI')}
summary_info += {'vvfat support':     config_host.has_key('CONFIG_VVFAT')}
summary_info += {'qed support':       config_host.has_key('CONFIG_QED')}
summary_info += {'parallels support': config_host.has_key('CONFIG_PARALLELS')}
summary_info += {'sheepdog support':  config_host.has_key('CONFIG_SHEEPDOG')}
summary_info += {'capstone':          config_host.has_key('CONFIG_CAPSTONE')}
summary_info += {'libpmem support':   config_host.has_key('CONFIG_LIBPMEM')}
summary_info += {'libdaxctl support': config_host.has_key('CONFIG_LIBDAXCTL')}
summary_info += {'libudev':           config_host.has_key('CONFIG_LIBUDEV')}
summary_info += {'default devices':   config_host['CONFIG_MINIKCONF_MODE'] == '--defconfig'}
summary_info += {'plugin support':    config_host.has_key('CONFIG_PLUGIN')}
summary_info += {'fuzzing support':   config_host.has_key('CONFIG_FUZZ')}
if config_host.has_key('HAVE_GDB_BIN')
  summary_info += {'gdb':             config_host['HAVE_GDB_BIN']}
endif
summary_info += {'thread sanitizer':  config_host.has_key('CONFIG_TSAN')}
summary_info += {'rng-none':          config_host.has_key('CONFIG_RNG_NONE')}
summary_info += {'Linux keyring':     config_host.has_key('CONFIG_SECRET_KEYRING')}
summary(summary_info, bool_yn: true)

if not supported_cpus.contains(cpu)
  message()
  warning('SUPPORT FOR THIS HOST CPU WILL GO AWAY IN FUTURE RELEASES!')
  message()
  message('CPU host architecture ' + cpu + ' support is not currently maintained.')
  message('The QEMU project intends to remove support for this host CPU in')
  message('a future release if nobody volunteers to maintain it and to')
  message('provide a build host for our continuous integration setup.')
  message('configure has succeeded and you can continue to build, but')
  message('if you care about QEMU on this platform you should contact')
  message('us upstream at qemu-devel@nongnu.org.')
endif

if not supported_oses.contains(targetos)
  message()
  warning('WARNING: SUPPORT FOR THIS HOST OS WILL GO AWAY IN FUTURE RELEASES!')
  message()
  message('Host OS ' + targetos + 'support is not currently maintained.')
  message('The QEMU project intends to remove support for this host OS in')
  message('a future release if nobody volunteers to maintain it and to')
  message('provide a build host for our continuous integration setup.')
  message('configure has succeeded and you can continue to build, but')
  message('if you care about QEMU on this platform you should contact')
  message('us upstream at qemu-devel@nongnu.org.')
endif