version_split = meson.project_version().split('.')
major = version_split[0].to_int()
minor = version_split[1].to_int()
patch = version_split[2].to_int()

# convert to the old-style 1.x.y version scheme used up to 1.20.x for backwards compatibility
release = 1 * 10000000 + major * 100000 + minor * 1000 + patch

dri_dep = dependency('dri', required: build_glx)

conf_data = configuration_data()
conf_data.set('_DIX_CONFIG_H_', '1')

conf_data.set('HAVE_TYPEOF', cc.compiles('''
    int foo(int bar) { typeof(bar) baz = 1; return baz; }
''',
    name: 'typeof()') ? '1' : false)

# For feature macros we're using either false (boolean) or '1', which correspond to the macro being
# not defined at all and defined to 1. This is to match autotools behavior and thus preserve
# backwards  compatibility with all the existing code that uses #ifdef to check if feature is
# enabled. This ifdef would pass if the macro is defined to 0 which would silently break code
# in various places.
#
# As a complication when we read the configuration from conf_data back we get either string or
# bool. Meson does not like comparing things of different types so we always convert the returned
# value to an integer using to_int().
conf_data.set('MONOTONIC_CLOCK', cc.has_function('clock_gettime') and
cc.compiles('''
    #define _POSIX_C_SOURCE 200112L
    #include <time.h>
    #include <unistd.h>
    #ifndef CLOCK_MONOTONIC
    #error CLOCK_MONOTONIC not defined
    #endif
''',
    name: 'CLOCK_MONOTONIC') ? '1' : false)

conf_data.set('XSERVER_DTRACE', with_dtrace ? '1' : false)

if host_machine.endian() == 'little'
    conf_data.set('X_BYTE_ORDER', 'X_LITTLE_ENDIAN')
else
    conf_data.set('X_BYTE_ORDER', 'X_BIG_ENDIAN')
endif

glx_align64 = []
if cc.sizeof('unsigned long') == 8
   conf_data.set('_XSERVER64', '1')
   glx_align64 = '-D__GLX_ALIGN64'
endif

conf_data.set('_GNU_SOURCE', '1')

# autoconf checks for /dev/xf86 here, but the test should be based on
# the target, not the build system.  Could we get rid of this and just
# ifdef for openbsd?
conf_data.set('HAS_APERTURE_DRV', host_machine.system() == 'openbsd' ? '1' : false)

if get_option('input_thread') == 'false'
  enable_input_thread = false
else
  enable_input_thread = cc.has_header_symbol('pthread.h',
					     'PTHREAD_MUTEX_RECURSIVE')
  if not enable_input_thread and get_option('input_thread') == 'true'
    error('Input thread enabled and PTHREAD_MUTEX_RECURSIVE not found')
  endif
  if host_machine.system() == 'windows' and get_option('input_thread') == 'auto'
      enable_input_thread = false
  endif
endif
conf_data.set('INPUTTHREAD', enable_input_thread ? '1' : false)

if cc.compiles('''
    #define _GNU_SOURCE 1
    #include <pthread.h>
    void foo(int bar) { pthread_setname_np(pthread_self(), "example"); }
''',
    args: '-Werror-implicit-function-declaration',
    name: 'pthread_setname_np(tid, name)')
    conf_data.set('HAVE_PTHREAD_SETNAME_NP_WITH_TID', 1)
elif cc.compiles('''
    #define _GNU_SOURCE 1
    #include <pthread.h>
    void foo(int bar) { pthread_setname_np("example"); }
''',
    args: '-Werror-implicit-function-declaration',
    name: 'pthread_setname_np(name)')
    conf_data.set('HAVE_PTHREAD_SETNAME_NP_WITHOUT_TID', 1)
endif

conf_data.set('HAVE_LIBBSD', libbsd_dep.found() ? '1' : false)
conf_data.set('HAVE_XSHMFENCE', xshmfence_dep.found() ? '1' : false)
conf_data.set('WITH_LIBDRM', libdrm_required ? '1' : false)
conf_data.set('GLAMOR_HAS_EGL_QUERY_DMABUF',
              epoxy_dep.found() and epoxy_dep.version().version_compare('>= 1.4.4') ? '1' : false)
conf_data.set('GLAMOR_HAS_EGL_QUERY_DRIVER',
              epoxy_dep.found() and epoxy_dep.version().version_compare('>= 1.5.4') ? '1' : false)
conf_data.set('GLXEXT', build_glx ? '1' : false)
conf_data.set('GLAMOR', build_glamor ? '1' : false)
conf_data.set('GLAMOR_HAS_GBM', gbm_dep.found() ? '1' : false)
conf_data.set('GLAMOR_HAS_GBM_LINEAR',
              build_glamor and gbm_dep.found() and gbm_dep.version().version_compare('>= 10.6') ? '1' : false)
conf_data.set('GBM_BO_WITH_MODIFIERS',
              build_glamor and gbm_dep.found() and gbm_dep.version().version_compare('>= 17.1') ? '1' : false)
conf_data.set('GBM_BO_FD_FOR_PLANE',
              build_glamor and gbm_dep.found() and gbm_dep.version().version_compare('>= 21.1') ? '1' : false)

conf_data.set_quoted('SERVER_MISC_CONFIG_PATH', serverconfigdir)
conf_data.set_quoted('PROJECTROOT', get_option('prefix'))
conf_data.set_quoted('SYSCONFDIR', join_paths(get_option('prefix'), get_option('sysconfdir')))
conf_data.set_quoted('COMPILEDDEFAULTFONTPATH', default_font_path)

conf_data.set('HASXDMAUTH', has_xdm_auth ? '1' : false)
conf_data.set('SECURE_RPC', get_option('secure-rpc') ? '1' : false)

conf_data.set('HAVE_DLFCN_H', cc.has_header('dlfcn.h') ? '1' : false)
conf_data.set('HAVE_EXECINFO_H', cc.has_header('execinfo.h') ? '1' : false)
conf_data.set('HAVE_FCNTL_H', cc.has_header('fcntl.h') ? '1' : false)
conf_data.set('HAVE_FNMATCH_H', cc.has_header('fnmatch.h') ? '1' : false)
conf_data.set('HAVE_STDLIB_H', cc.has_header('stdlib.h') ? '1' : false)
conf_data.set('HAVE_STRING_H', cc.has_header('string.h') ? '1' : false)
conf_data.set('HAVE_STRINGS_H', cc.has_header('strings.h') ? '1' : false)
conf_data.set('HAVE_SYS_UTSNAME_H', cc.has_header('sys/utsname.h') ? '1' : false)
conf_data.set('HAVE_SYS_SYSMACROS_H', cc.has_header('sys/sysmacros.h') ? '1' : false)
conf_data.set('HAVE_UNISTD_H', cc.has_header('unistd.h') ? '1' : false)

conf_data.set('HAVE_ARC4RANDOM_BUF', cc.has_function('arc4random_buf', dependencies: libbsd_dep) ? '1' : false)
conf_data.set('HAVE_BACKTRACE', cc.has_function('backtrace') ? '1' : false)
conf_data.set('HAVE_CBRT', cc.has_function('cbrt') ? '1' : false)
conf_data.set('HAVE_EPOLL_CREATE1', cc.has_function('epoll_create1') ? '1' : false)
conf_data.set('HAVE_GETUID', cc.has_function('getuid') ? '1' : false)
conf_data.set('HAVE_GETEUID', cc.has_function('geteuid') ? '1' : false)
conf_data.set('HAVE_ISASTREAM', cc.has_function('isastream') ? '1' : false)
conf_data.set('HAVE_ISSETUGID', cc.has_function('issetugid') ? '1' : false)
conf_data.set('HAVE_GETIFADDRS', cc.has_function('getifaddrs') ? '1' : false)
conf_data.set('HAVE_GETPEEREID', cc.has_function('getpeereid') ? '1' : false)
conf_data.set('HAVE_GETPEERUCRED', cc.has_function('getpeerucred') ? '1' : false)
conf_data.set('HAVE_GETPROGNAME', cc.has_function('getprogname') ? '1' : false)
conf_data.set('HAVE_GETZONEID', cc.has_function('getzoneid') ? '1' : false)
conf_data.set('HAVE_MEMFD_CREATE', cc.has_function('memfd_create') ? '1' : false)
conf_data.set('HAVE_MKOSTEMP', cc.has_function('mkostemp') ? '1' : false)
conf_data.set('HAVE_MMAP', cc.has_function('mmap') ? '1' : false)
conf_data.set('HAVE_POLL', cc.has_function('poll') ? '1' : false)
conf_data.set('HAVE_POLLSET_CREATE', cc.has_function('pollset_create') ? '1' : false)
conf_data.set('HAVE_POSIX_FALLOCATE', cc.has_function('posix_fallocate') ? '1' : false)
conf_data.set('HAVE_PORT_CREATE', cc.has_function('port_create') ? '1' : false)
conf_data.set('HAVE_REALLOCARRAY', cc.has_function('reallocarray', dependencies: libbsd_dep) ? '1' : false)
conf_data.set('HAVE_SETEUID', cc.has_function('seteuid') ? '1' : false)
conf_data.set('HAVE_SETITIMER', cc.has_function('setitimer') ? '1' : false)
conf_data.set('HAVE_SHMCTL64', cc.has_function('shmctl64') ? '1' : false)
conf_data.set('HAVE_SIGACTION', cc.has_function('sigaction') ? '1' : false)
conf_data.set('HAVE_SIGPROCMASK', cc.has_function('sigprocmask') ? '1' : false)
conf_data.set('HAVE_STRCASECMP', cc.has_function('strcasecmp') ? '1' : false)
conf_data.set('HAVE_STRCASESTR', cc.has_function('strcasestr') ? '1' : false)
conf_data.set('HAVE_STRLCAT', cc.has_function('strlcat', dependencies: libbsd_dep) ? '1' : false)
conf_data.set('HAVE_STRLCPY', cc.has_function('strlcpy', dependencies: libbsd_dep) ? '1' : false)
conf_data.set('HAVE_STRNCASECMP', cc.has_function('strncasecmp') ? '1' : false)
conf_data.set('HAVE_STRNDUP', cc.has_function('strndup') and cc.has_header_symbol('string.h', 'strndup') ? '1' : false)
conf_data.set('HAVE_TIMINGSAFE_MEMCMP', cc.has_function('timingsafe_memcmp') ? '1' : false)
conf_data.set('HAVE_VASPRINTF', cc.has_function('vasprintf') ? '1' : false)
conf_data.set('HAVE_VSNPRINTF', cc.has_function('vsnprintf') ? '1' : false)
conf_data.set('HAVE_WALKCONTEXT', cc.has_function('walkcontext') ? '1' : false)

conf_data.set('BUSFAULT', conf_data.get('HAVE_SIGACTION'))

# Don't let X dependencies typedef 'pointer'
conf_data.set('_XTYPEDEF_POINTER', '1')
conf_data.set('_XITYPEDEF_POINTER', '1')

conf_data.set('LISTEN_TCP', get_option('listen_tcp'))
conf_data.set('LISTEN_UNIX', get_option('listen_unix'))
conf_data.set('LISTEN_LOCAL', get_option('listen_local'))

if cc.has_header_symbol('sys/socket.h', 'SCM_RIGHTS')
  conf_data.set('XTRANS_SEND_FDS', '1')
endif

if conf_data.get('HAVE_GETPEEREID').to_int() == 0 and conf_data.get('HAVE_GETPEERUCRED').to_int() == 0
    if not cc.has_header_symbol('sys/socket.h', 'SO_PEERCRED')
        conf_data.set('NO_LOCAL_CLIENT_CRED', 1)
    endif
endif

conf_data.set('TCPCONN', '1')
conf_data.set('UNIXCONN', host_machine.system() != 'windows' ? '1' : false)
conf_data.set('IPv6', build_ipv6 ? '1' : false)

conf_data.set('BIGREQS', '1')
conf_data.set('COMPOSITE', '1')
conf_data.set('DAMAGE', '1')
conf_data.set('DBE', '1')
conf_data.set('DPMSExtension', build_dpms ? '1' : false)
conf_data.set('DRI3', build_dri3 ? '1' : false)
if build_glx
    conf_data.set_quoted('DRI_DRIVER_PATH', dri_dep.get_pkgconfig_variable('dridriverdir'))
endif
conf_data.set('HAS_SHM', build_mitshm ? '1' : false)
conf_data.set('MITSHM', build_mitshm ? '1' : false)
conf_data.set('PANORAMIX', build_xinerama ? '1' : false)
conf_data.set('PRESENT', '1')
conf_data.set('RANDR', '1')
conf_data.set('RES', build_res ? '1' : false)
conf_data.set('RENDER', '1')
conf_data.set('SCREENSAVER', build_screensaver ? '1' : false)
conf_data.set('SHAPE', '1')
conf_data.set('XACE', build_xace ? '1' : false)
conf_data.set('XCMISC', '1')
conf_data.set('XCSECURITY', build_xsecurity ? '1' : false)
conf_data.set('XDMCP', xdmcp_dep.found() ? '1' : false)
conf_data.set('XF86BIGFONT', build_xf86bigfont ? '1' : false)
conf_data.set('XF86VIDMODE', 1)
conf_data.set('XFIXES', '1')
conf_data.set('XINERAMA', build_xinerama ? '1' : false)
conf_data.set('XINPUT', '1')
conf_data.set('XRECORD', '1')
conf_data.set('XSELINUX', build_xselinux ? '1' : false)
conf_data.set('XSYNC', '1')
conf_data.set('XTEST', '1')
conf_data.set('XV', build_xv ? '1' : false)
conf_data.set('XvExtension', build_xv ? '1' : false)

conf_data.set('HAVE_SHA1_IN_' + sha1.to_upper(), '1', description: 'Use @0@ SHA1 functions'.format(sha1))
conf_data.set('HAVE_LIBUNWIND', get_option('libunwind'))

enable_debugging = get_option('buildtype') == 'debug'
conf_data.set('DEBUG', enable_debugging ? '1' : false)

conf_data.set_quoted('XVENDORNAME', get_option('vendor_name'))
conf_data.set_quoted('XVENDORNAMESHORT', get_option('vendor_name_short'))
conf_data.set_quoted('__VENDORDWEBSUPPORT__', get_option('vendor_web'))
conf_data.set_quoted('BUILDERADDR', get_option('builder_addr'))
conf_data.set_quoted('BUILDERSTRING', get_option('builder_string'))

# BSD specifics
supports_pccons = false
supports_pcvt = false
supports_syscons = false
supports_wscons = false
csrg_based = false

if host_machine.system() == 'freebsd' or host_machine.system() == 'dragonfly'
  supports_pccons = true
  supports_pcvt = true
  supports_syscons = true
  csrg_based = true
endif

if host_machine.system() == 'kfreebsd'
  supports_pccons = true
  supports_pcvt = true
  supports_syscons = true
endif

if host_machine.system() == 'netbsd'
  supports_pccons = true
  supports_pcvt = true
  supports_wscons = true
  csrg_based = true
endif

if host_machine.system() == 'openbsd'
  supports_pcvt = true
  supports_wscons = true
  csrg_based = true
endif

if host_machine.system() == 'darwin'
  csrg_based = true
endif

conf_data.set_quoted('XKB_DFLT_RULES', get_option('xkb_default_rules'))
conf_data.set_quoted('__XSERVERNAME__', 'Xorg')
conf_data.set('CSRG_BASED', csrg_based ? '1' : false)

configure_file(output : 'dix-config.h',
               configuration : conf_data)

version_data = configuration_data()
version_data.set('VENDOR_RELEASE', '@0@'.format(release))
version_data.set_quoted('VENDOR_NAME', get_option('vendor_name'))
version_data.set_quoted('VENDOR_NAME_SHORT', get_option('vendor_name_short'))
version_data.set_quoted('VENDOR_WEB', get_option('vendor_web'))
version_data.set_quoted('VENDOR_MAN_VERSION', 'Version @0@.@1@.@2@'.format(major, minor, patch))
configure_file(output : 'version-config.h',
               configuration : version_data)

xkb_data = configuration_data()

xkb_data.set_quoted('XKB_BIN_DIRECTORY', xkb_bin_dir)
xkb_data.set_quoted('XKB_BASE_DIRECTORY', xkb_dir)
xkb_data.set_quoted('XKB_DFLT_RULES', get_option('xkb_default_rules'))
xkb_data.set_quoted('XKB_DFLT_MODEL', get_option('xkb_default_model'))
xkb_data.set_quoted('XKB_DFLT_LAYOUT', get_option('xkb_default_layout'))
xkb_data.set_quoted('XKB_DFLT_VARIANT', get_option('xkb_default_variant'))
xkb_data.set_quoted('XKB_DFLT_OPTIONS', get_option('xkb_default_options'))
xkb_data.set_quoted('XKM_OUTPUT_DIR', xkb_output_dir + '/')

configure_file(output : 'xkb-config.h',
               configuration : xkb_data)

xwayland_data = configuration_data()
xwayland_data.set('XWL_HAS_GLAMOR', build_glamor and (gbm_dep.found() or build_eglstream) ? '1' : false)
xwayland_data.set('XWL_HAS_EGLSTREAM', build_eglstream ? '1' : false)

configure_file(output : 'xwayland-config.h',
               input : 'xwayland-config.h.meson.in',
               configuration : xwayland_data)

dtrace_hdr = []
dtrace_tmpl = files('Xserver.d')
if with_dtrace
    dtrace_header = generator(dtrace,
        output: '@BASENAME@-dtrace.h',
        arguments: ['-h', '-s', '@INPUT@', '-o', '@OUTPUT@']
    )

    dtrace_hdr += dtrace_header.process(dtrace_tmpl)
endif