configure.ac - weston - Git Browser for ODROID

 m4_define([weston_major_version], [1])
 m4_define([weston_minor_version], [4])
 m4_define([weston_micro_version], [0])
 m4_define([weston_version],
           [weston_major_version.weston_minor_version.weston_micro_version])

 AC_PREREQ([2.64])
 AC_INIT([weston],
         [weston_version],
         [https://bugs.freedesktop.org/enter_bug.cgi?product=Wayland&component=weston&version=weston_version],
         [weston],
         [http://wayland.freedesktop.org/])

 AC_SUBST([WESTON_VERSION_MAJOR], [weston_major_version])
 AC_SUBST([WESTON_VERSION_MINOR], [weston_minor_version])
 AC_SUBST([WESTON_VERSION_MICRO], [weston_micro_version])
 AC_SUBST([WESTON_VERSION], [weston_version])

 AC_CONFIG_AUX_DIR([build-aux])
 AC_CONFIG_HEADERS([config.h])

 AC_USE_SYSTEM_EXTENSIONS
 AC_SYS_LARGEFILE

 AM_INIT_AUTOMAKE([1.11 parallel-tests foreign no-dist-gzip dist-xz color-tests subdir-objects])

 AM_SILENT_RULES([yes])

 # Check for programs
 AC_PROG_CC
 AC_PROG_SED

 # Initialize libtool
 LT_PREREQ([2.2])
 LT_INIT([disable-static])

 AC_ARG_VAR([WESTON_NATIVE_BACKEND],
            [Set the native backend to use, if Weston is not running under Wayland nor X11. @<:@default=drm-backend.so@:>@])
 AC_ARG_VAR([WESTON_SHELL_CLIENT],
            [Set the default desktop shell client to load if none is specified in weston.ini. @<:@default=weston-desktop-shell@:>@])

 PKG_PROG_PKG_CONFIG()

 AC_CHECK_FUNC([dlopen], [],
               AC_CHECK_LIB([dl], [dlopen], DLOPEN_LIBS="-ldl"))
 AC_SUBST(DLOPEN_LIBS)

 AC_CHECK_DECL(SFD_CLOEXEC,[],
 	      [AC_MSG_ERROR("SFD_CLOEXEC is needed to compile weston")],
 	      [[#include <sys/signalfd.h>]])
 AC_CHECK_DECL(TFD_CLOEXEC,[],
 	      [AC_MSG_ERROR("TFD_CLOEXEC is needed to compile weston")],
 	      [[#include <sys/timerfd.h>]])
 AC_CHECK_DECL(CLOCK_MONOTONIC,[],
 	      [AC_MSG_ERROR("CLOCK_MONOTONIC is needed to compile weston")],
 	      [[#include <time.h>]])
 AC_CHECK_HEADERS([execinfo.h])

 AC_CHECK_FUNCS([mkostemp strchrnul initgroups posix_fallocate])

 COMPOSITOR_MODULES="wayland-server >= 1.3.90 pixman-1"

 AC_ARG_ENABLE(egl, [  --disable-egl],,
               enable_egl=yes)
 AM_CONDITIONAL(ENABLE_EGL, test x$enable_egl = xyes)
 if test x$enable_egl = xyes; then
 	AC_DEFINE([ENABLE_EGL], [1], [Build Weston with EGL support])
 	PKG_CHECK_MODULES(EGL, [egl >= 7.10 glesv2])
         PKG_CHECK_MODULES([EGL_TESTS], [egl >= 7.10 glesv2 wayland-client wayland-egl])
 fi

 AC_ARG_ENABLE(xkbcommon,
 	      AS_HELP_STRING([--disable-xkbcommon], [Disable libxkbcommon
 			      support: This is only useful in environments
 			      where you do not have a hardware keyboard. If
 			      libxkbcommon support is disabled clients will not
 			      be sent a keymap and and must know how to
 			      interpret the keycode sent for any key event.]),,
 	      enable_xkbcommon=yes)
 if test x$enable_xkbcommon = xyes; then
 	AC_DEFINE(ENABLE_XKBCOMMON, [1], [Build Weston with libxkbcommon support])
 	COMPOSITOR_MODULES="$COMPOSITOR_MODULES xkbcommon >= 0.3.0"
 fi

 AC_ARG_ENABLE(setuid-install, [  --enable-setuid-install],,
 	      enable_setuid_install=yes)
 AM_CONDITIONAL(ENABLE_SETUID_INSTALL, test x$enable_setuid_install = xyes)


 AC_ARG_ENABLE(xwayland, [  --enable-xwayland],,
 	      enable_xwayland=yes)
 AC_ARG_ENABLE(xwayland-test, [  --enable-xwayland-test],,
               enable_xwayland_test=yes)
 AM_CONDITIONAL(ENABLE_XWAYLAND, test x$enable_xwayland = xyes)
 AM_CONDITIONAL(ENABLE_XWAYLAND_TEST, test x$enable_xwayland = xyes -a x$enable_xwayland_test = xyes)
 if test x$enable_xwayland = xyes; then
   PKG_CHECK_MODULES([XWAYLAND], xcb xcb-xfixes xcb-composite xcursor cairo-xcb)
   AC_DEFINE([BUILD_XWAYLAND], [1], [Build the X server launcher])

   AC_ARG_WITH(xserver-path, AS_HELP_STRING([--with-xserver-path=PATH],
               [Path to X server]), [XSERVER_PATH="$withval"],
               [XSERVER_PATH="$bindir/Xorg"])
   AC_SUBST([XSERVER_PATH])
   if test x$enable_xwayland_test = xyes; then
     PKG_CHECK_MODULES([XWAYLAND_TEST], xcb xcb-dri2 libdrm)
   fi
 fi

 PKG_CHECK_MODULES(LIBDRM, [libdrm],
                   [AC_DEFINE(HAVE_LIBDRM, 1, [Define if libdrm is available]) have_libdrm=yes], have_libdrm=no)

 AC_ARG_ENABLE(x11-compositor, [  --enable-x11-compositor],,
 	      enable_x11_compositor=yes)
 AM_CONDITIONAL(ENABLE_X11_COMPOSITOR, test x$enable_x11_compositor = xyes)
 if test x$enable_x11_compositor = xyes; then
   PKG_CHECK_MODULES([XCB], xcb)
   xcb_save_LIBS=$LIBS
   xcb_save_CFLAGS=$CFLAGS
   CFLAGS=$XCB_CFLAGS
   LIBS=$XCB_LIBS
   AC_CHECK_FUNCS([xcb_poll_for_queued_event])
   LIBS=$xcb_save_LIBS
   CFLAGS=$xcb_save_CFLAGS

   X11_COMPOSITOR_MODULES="x11 x11-xcb xcb-shm"

   PKG_CHECK_MODULES(X11_COMPOSITOR_XKB, [xcb-xkb],
 		    [have_xcb_xkb="yes"], [have_xcb_xkb="no"])
   if test "x$have_xcb_xkb" = xyes; then
 	# Most versions of XCB have totally broken XKB bindings, where the
 	# events don't work.  Make sure we can actually use them.
 	xcb_xkb_save_CFLAGS=$CFLAGS
 	CFLAGS=$X11_COMPOSITOR_XKB_CFLAGS
 	AC_CHECK_MEMBER([struct xcb_xkb_state_notify_event_t.xkbType],
 			[], [have_xcb_xkb=no], [[#include <xcb/xkb.h>]])
 	CFLAGS=$xcb_xkb_save_CFLAGS
   fi
   if test "x$have_xcb_xkb" = xyes; then
 	X11_COMPOSITOR_MODULES="$X11_COMPOSITOR_MODULES xcb-xkb"
 	AC_DEFINE([HAVE_XCB_XKB], [1], [libxcb supports XKB protocol])
   fi

   PKG_CHECK_MODULES(X11_COMPOSITOR, [$X11_COMPOSITOR_MODULES])
   AC_DEFINE([BUILD_X11_COMPOSITOR], [1], [Build the X11 compositor])
 fi


 AC_ARG_ENABLE(drm-compositor, [  --enable-drm-compositor],,
 	      enable_drm_compositor=yes)
 AM_CONDITIONAL(ENABLE_DRM_COMPOSITOR, test x$enable_drm_compositor = xyes)
 if test x$enable_drm_compositor = xyes; then
   AC_DEFINE([BUILD_DRM_COMPOSITOR], [1], [Build the DRM compositor])
   PKG_CHECK_MODULES(DRM_COMPOSITOR, [libudev >= 136 libdrm >= 2.4.30 gbm mtdev >= 1.1.0])
 fi


 AC_ARG_ENABLE(libinput-backend, [  --enable-libinput-backend],,
 	      enable_libinput_backend=no)
 AM_CONDITIONAL([ENABLE_LIBINPUT_BACKEND], [test x$enable_libinput_backend = xyes])
 if test x$enable_libinput_backend = xyes; then
   AC_DEFINE([BUILD_LIBINPUT_BACKEND], [1], [Build the libinput input device backend])
   PKG_CHECK_MODULES(LIBINPUT_BACKEND, [libinput >= 0.1.0])
 fi


 PKG_CHECK_MODULES(COMPOSITOR, [$COMPOSITOR_MODULES])

 AC_ARG_ENABLE(wayland-compositor, [  --enable-wayland-compositor],,
 	      enable_wayland_compositor=yes)
 AM_CONDITIONAL(ENABLE_WAYLAND_COMPOSITOR,
 	       test x$enable_wayland_compositor = xyes -a x$enable_egl = xyes)
 if test x$enable_wayland_compositor = xyes -a x$enable_egl = xyes; then
   AC_DEFINE([BUILD_WAYLAND_COMPOSITOR], [1],
 	    [Build the Wayland (nested) compositor])
   PKG_CHECK_MODULES(WAYLAND_COMPOSITOR, [wayland-client wayland-egl wayland-cursor])
 fi


 AC_ARG_ENABLE(headless-compositor, [  --enable-headless-compositor],,
 	      enable_headless_compositor=yes)
 AM_CONDITIONAL(ENABLE_HEADLESS_COMPOSITOR,
 	       test x$enable_headless_compositor = xyes)


 AC_ARG_ENABLE(rpi-compositor,
 	      AS_HELP_STRING([--disable-rpi-compositor],
 	                     [do not build the Raspberry Pi backend]),,
 	      enable_rpi_compositor=yes)
 AM_CONDITIONAL(ENABLE_RPI_COMPOSITOR, test "x$enable_rpi_compositor" = "xyes")
 have_bcm_host="no"
 if test "x$enable_rpi_compositor" = "xyes"; then
   AC_DEFINE([BUILD_RPI_COMPOSITOR], [1], [Build the compositor for Raspberry Pi])
   PKG_CHECK_MODULES(RPI_COMPOSITOR, [libudev >= 136 mtdev >= 1.1.0])
   PKG_CHECK_MODULES(RPI_BCM_HOST, [bcm_host],
                     [have_bcm_host="yes"
                      AC_DEFINE([HAVE_BCM_HOST], [1], [have Raspberry Pi BCM headers])],
                     [AC_MSG_WARN([Raspberry Pi BCM host libraries not found, will use stubs instead.])])
 fi
 AM_CONDITIONAL(INSTALL_RPI_COMPOSITOR, test "x$have_bcm_host" = "xyes")


 AC_ARG_ENABLE([fbdev-compositor], [  --enable-fbdev-compositor],,
               enable_fbdev_compositor=yes)
 AM_CONDITIONAL([ENABLE_FBDEV_COMPOSITOR],
                [test x$enable_fbdev_compositor = xyes])
 AS_IF([test x$enable_fbdev_compositor = xyes], [
   AC_DEFINE([BUILD_FBDEV_COMPOSITOR], [1], [Build the fbdev compositor])
   PKG_CHECK_MODULES([FBDEV_COMPOSITOR], [libudev >= 136 mtdev >= 1.1.0])
 ])

 AC_ARG_ENABLE([rdp-compositor], [  --enable-rdp-compositor],,
               enable_rdp_compositor=no)
 AM_CONDITIONAL([ENABLE_RDP_COMPOSITOR],
                [test x$enable_rdp_compositor = xyes])
 if test x$enable_rdp_compositor = xyes; then
   AC_DEFINE([BUILD_RDP_COMPOSITOR], [1], [Build the RDP compositor])
   PKG_CHECK_MODULES(RDP_COMPOSITOR, [freerdp >= 1.1.0])

   SAVED_CPPFLAGS="$CPPFLAGS"
   CPPFLAGS="$CPPFLAGS $RDP_COMPOSITOR_CFLAGS"
   AC_CHECK_HEADERS([freerdp/version.h])
   CPPFLAGS="$SAVED_CPPFLAGS"
 fi

 AC_ARG_WITH(cairo,
 	    AS_HELP_STRING([--with-cairo=@<:@image|gl|glesv2@:>@]
 			   [Which Cairo renderer to use for the clients]),
 			   [],[with_cairo="image"])

 if test "x$with_cairo" = "ximage"; then
 	cairo_modules="cairo"
 else
 if test "x$with_cairo" = "xgl"; then
 	cairo_modules="cairo-gl"
 else
 if test "x$with_cairo" = "xglesv2"; then
 	cairo_modules="cairo-glesv2"
 else
 	AC_ERROR([Unknown cairo renderer requested])
 fi
 fi
 fi

 # Included for legacy compat
 AC_ARG_WITH(cairo-glesv2,
             AS_HELP_STRING([--with-cairo-glesv2],
                            [Use GLESv2 cairo]))
 if test "x$with_cairo_glesv2" = "xyes"; then
   cairo_modules="cairo-glesv2"
   with_cairo="glesv2"
 fi

 if test "x$cairo_modules" = "xcairo-glesv2"; then
 AC_DEFINE([USE_CAIRO_GLESV2], [1], [Use the GLESv2 GL cairo backend])
 fi

 PKG_CHECK_MODULES(PIXMAN, [pixman-1])
 PKG_CHECK_MODULES(PNG, [libpng])
 PKG_CHECK_MODULES(WEBP, [libwebp], [have_webp=yes], [have_webp=no])
 AS_IF([test "x$have_webp" = "xyes"],
       [AC_DEFINE([HAVE_WEBP], [1], [Have webp])])

 AC_ARG_ENABLE(vaapi-recorder, [  --enable-vaapi-recorder],,
 	      enable_vaapi_recorder=auto)
 if test x$enable_vaapi_recorder != xno; then
   PKG_CHECK_MODULES(LIBVA, [libva >= 0.34.0 libva-drm >= 0.34.0],
                     [have_libva=yes], [have_libva=no])
   if test "x$have_libva" = "xno" -a "x$enable_vaapi_recorder" = "xyes"; then
     AC_MSG_ERROR([vaapi-recorder explicitly enabled, but libva couldn't be found])
   fi
   AS_IF([test "x$have_libva" = "xyes"],
         [AC_DEFINE([BUILD_VAAPI_RECORDER], [1], [Build the vaapi recorder])])
 fi
 AM_CONDITIONAL(ENABLE_VAAPI_RECORDER, test "x$have_libva" = xyes)


 AC_CHECK_LIB([jpeg], [jpeg_CreateDecompress], have_jpeglib=yes)
 if test x$have_jpeglib = xyes; then
   JPEG_LIBS="-ljpeg"
 else
   AC_ERROR([libjpeg not found])
 fi
 AC_SUBST(JPEG_LIBS)

 PKG_CHECK_MODULES(CAIRO, [cairo])

 PKG_CHECK_MODULES(TEST_CLIENT, [wayland-client])

 AC_ARG_ENABLE(simple-clients,
               AS_HELP_STRING([--disable-simple-clients],
                              [do not build the simple wl_shm clients]),,
               enable_simple_clients=yes)
 AM_CONDITIONAL(BUILD_SIMPLE_CLIENTS, test "x$enable_simple_clients" = "xyes")
 if test x$enable_simple_clients = xyes; then
   PKG_CHECK_MODULES(SIMPLE_CLIENT, [wayland-client])
 fi

 AC_ARG_ENABLE(simple-egl-clients,
               AS_HELP_STRING([--disable-simple-egl-clients],
                              [do not build the simple EGL clients]),,
               enable_simple_egl_clients="$enable_egl")
 AM_CONDITIONAL(BUILD_SIMPLE_EGL_CLIENTS, test "x$enable_simple_egl_clients" = "xyes")
 if test x$enable_simple_egl_clients = xyes; then
   PKG_CHECK_MODULES(SIMPLE_EGL_CLIENT,
                     [egl >= 7.10 glesv2 wayland-client wayland-egl wayland-cursor])
 fi

 AC_ARG_ENABLE(clients, [  --enable-clients],, enable_clients=yes)
 AM_CONDITIONAL(BUILD_CLIENTS, test x$enable_clients = xyes)
 if test x$enable_clients = xyes; then
   AC_DEFINE([BUILD_CLIENTS], [1], [Build the Wayland clients])

   PKG_CHECK_MODULES(CLIENT, [wayland-client cairo >= 1.10.0 xkbcommon wayland-cursor])
   PKG_CHECK_MODULES(SERVER, [wayland-server])
   PKG_CHECK_MODULES(WESTON_INFO, [wayland-client])

   # Only check for cairo-egl if a GL or GLES renderer requested
   AS_IF([test "x$cairo_modules" = "xcairo-gl" -o "x$cairo_modules" = "xcairo-glesv2"], [
     PKG_CHECK_MODULES(CAIRO_EGL, [wayland-egl egl >= 7.10 cairo-egl >= 1.11.3 $cairo_modules],
                       [have_cairo_egl=yes], [have_cairo_egl=no])
     AS_IF([test "x$have_cairo_egl" = "xyes"],
 	  [AC_DEFINE([HAVE_CAIRO_EGL], [1], [Have cairo-egl])],
 	  [AC_ERROR([cairo-egl not used because $CAIRO_EGL_PKG_ERRORS])])],
   [have_cairo_egl=no])

   PKG_CHECK_MODULES(PANGO, [pangocairo], [have_pango=yes], [have_pango=no])
 fi

 AC_ARG_ENABLE(resize-optimization,
               AS_HELP_STRING([--disable-resize-optimization],
                              [disable resize optimization allocating a big buffer in toytoolkit]),,
               enable_resize_optimization=yes)
 AS_IF([test "x$enable_resize_optimization" = "xyes"],
       [AC_DEFINE([USE_RESIZE_POOL], [1], [Use resize memory pool as a performance optimization])])

 PKG_CHECK_MODULES(SYSTEMD_LOGIN, [libsystemd-login >= 198],
                   [have_systemd_login=yes], [have_systemd_login=no])
 AS_IF([test "x$have_systemd_login" = "xyes"],
       [AC_DEFINE([HAVE_SYSTEMD_LOGIN], [1], [Have systemd-login])])
 AM_CONDITIONAL(HAVE_SYSTEMD_LOGIN, test "x$have_systemd_login" = "xyes")

 PKG_CHECK_MODULES(SYSTEMD_LOGIN_209, [libsystemd-login >= 209],
                   [have_systemd_login_209=yes], [have_systemd_login_209=no])
 AS_IF([test "x$have_systemd_login_209" = "xyes"],
       [AC_DEFINE([HAVE_SYSTEMD_LOGIN_209], [1], [Have systemd-login >= 209])])

 AC_ARG_ENABLE(weston-launch, [  --enable-weston-launch],, enable_weston_launch=yes)
 AM_CONDITIONAL(BUILD_WESTON_LAUNCH, test x$enable_weston_launch == xyes)
 if test x$enable_weston_launch == xyes; then
   AC_CHECK_LIB([pam], [pam_open_session], [have_pam=yes], [have_pam=no])
   if test x$have_pam == xno; then
     AC_ERROR([weston-launch requires pam])
   fi
   PAM_LIBS=-lpam
   AC_SUBST(PAM_LIBS)
 fi

 if test x$enable_egl = xyes; then
   PKG_CHECK_MODULES(GLU, [glu], [have_glu=yes], [have_glu=no])
 fi
 AM_CONDITIONAL(HAVE_GLU, test "x$have_glu" = "xyes")

 AM_CONDITIONAL(HAVE_PANGO, test "x$have_pango" = "xyes")

 AM_CONDITIONAL(HAVE_CAIRO_GLESV2,
 	       [test "x$have_cairo_egl" = "xyes" -a "x$cairo_modules" = "xcairo-glesv2" -a "x$enable_egl" = "xyes"])

 AM_CONDITIONAL(BUILD_FULL_GL_CLIENTS,
 	       test x$cairo_modules = "xcairo-gl" -a "x$have_cairo_egl" = "xyes" -a "x$enable_egl" = "xyes")

 AM_CONDITIONAL(BUILD_SUBSURFACES_CLIENT,
 	       [test '(' "x$have_cairo_egl" != "xyes" -o "x$cairo_modules" = "xcairo-glesv2" ')' -a "x$enable_simple_egl_clients" = "xyes"])

 AM_CONDITIONAL(ENABLE_DESKTOP_SHELL, true)

 # CMS modules
 AC_ARG_ENABLE(colord,
               AS_HELP_STRING([--disable-colord],
                              [do not build colord CMS support]),,
 	      enable_colord=auto)
 if test "x$enable_colord" != "xno"; then
 	PKG_CHECK_MODULES(COLORD,
 			  colord >= 0.1.27,
 			  have_colord=yes,
 			  have_colord=no)
 	if test "x$have_colord" = "xno" -a "x$enable_colord" = "xyes"; then
 	  AC_MSG_ERROR([colord support explicitly requested, but colord couldn't be found])
 	fi
 	if test "x$have_colord" = "xyes"; then
 	     enable_colord=yes
 	fi
 fi
 AM_CONDITIONAL(ENABLE_COLORD, test "x$enable_colord" = "xyes")

 # dbus support
 AC_ARG_ENABLE(dbus,
               AS_HELP_STRING([--disable-dbus],
                              [do not build with dbus support]),,
               enable_dbus=auto)
 if test "x$enable_dbus" != "xno"; then
         PKG_CHECK_MODULES(DBUS,
                           dbus-1 >= 1.6,
                           have_dbus=yes,
                           have_dbus=no)
         if test "x$have_dbus" = "xno" -a "x$enable_dbus" = "xyes"; then
                 AC_MSG_ERROR([dbus support explicitly requested, but libdbus couldn't be found])
         fi
         if test "x$have_dbus" = "xyes"; then
                 enable_dbus=yes
                 AC_DEFINE([HAVE_DBUS], [1], [Build with dbus support])
         else
                 enable_dbus=no
         fi
 fi
 AM_CONDITIONAL(ENABLE_DBUS, test "x$enable_dbus" = "xyes")

 AC_ARG_ENABLE(wcap-tools, [  --disable-wcap-tools],, enable_wcap_tools=yes)
 AM_CONDITIONAL(BUILD_WCAP_TOOLS, test x$enable_wcap_tools = xyes)
 if test x$enable_wcap_tools = xyes; then
   AC_DEFINE([BUILD_WCAP_TOOLS], [1], [Build the wcap tools])
   PKG_CHECK_MODULES(WCAP, [cairo])
   WCAP_LIBS="$WCAP_LIBS -lm"
 fi

 PKG_CHECK_MODULES(SETBACKLIGHT, [libudev libdrm], enable_setbacklight=yes, enable_setbacklight=no)
 AM_CONDITIONAL(BUILD_SETBACKLIGHT, test "x$enable_setbacklight" = "xyes")

 if test "x$GCC" = "xyes"; then
 	GCC_CFLAGS="-Wall -Wextra -Wno-unused-parameter \
 		-Wno-missing-field-initializers -g -fvisibility=hidden \
 		-Wstrict-prototypes -Wmissing-prototypes -Wsign-compare"
 fi
 AC_SUBST(GCC_CFLAGS)

 AC_ARG_ENABLE(libunwind,
               AS_HELP_STRING([--disable-libunwind],
                              [Disable libunwind usage for backtraces]),,
               enable_libunwind=auto)
 AM_CONDITIONAL(HAVE_LIBUNWIND, [test "x$enable_libunwind" = xyes])
 if test "x$enable_libunwind" != "xno"; then
         PKG_CHECK_MODULES(LIBUNWIND,
                           libunwind,
                           have_libunwind=yes,
                           have_libunwind=no)
         if test "x$have_libunwind" = "xno" -a "x$enable_libunwind" = "xyes"; then
           AC_MSG_ERROR([libunwind support explicitly requested, but libunwind couldn't be found])
         fi
         if test "x$have_libunwind" = "xyes"; then
              enable_libunwind=yes
              AC_DEFINE(HAVE_LIBUNWIND, 1, [Have libunwind support])
         fi
 fi


 if test "x$WESTON_NATIVE_BACKEND" = "x"; then
 	WESTON_NATIVE_BACKEND="drm-backend.so"
 fi
 AC_MSG_NOTICE([Weston's native backend: $WESTON_NATIVE_BACKEND])
 AC_DEFINE_UNQUOTED([WESTON_NATIVE_BACKEND], ["$WESTON_NATIVE_BACKEND"],
 		   [The default backend to load, if not wayland nor x11.])

 if test "x$WESTON_SHELL_CLIENT" = "x"; then
 	WESTON_SHELL_CLIENT="weston-desktop-shell"
 fi
 AC_MSG_NOTICE([Weston's default desktop shell client: $WESTON_SHELL_CLIENT])
 AC_DEFINE_UNQUOTED([WESTON_SHELL_CLIENT], ["$WESTON_SHELL_CLIENT"],
 		   [The default desktop shell client to load.])

 AC_ARG_ENABLE(demo-clients-install,
               AS_HELP_STRING([--enable-demo-clients-install],
                              [Install demo clients built with weston]),,
 			     enable_demo_clients_install=no)
 AM_CONDITIONAL(INSTALL_DEMO_CLIENTS, [test "x$enable_demo_clients_install" = "xyes"])

 PKG_CHECK_MODULES(LCMS, lcms2,
                   [have_lcms=yes], [have_lcms=no])
 if test "x$have_lcms" = xyes; then
        AC_DEFINE(HAVE_LCMS, 1, [Have lcms support])
 fi
 AM_CONDITIONAL(HAVE_LCMS, [test "x$have_lcms" = xyes])

 AC_PATH_PROG([wayland_scanner], [wayland-scanner])
 if test x$wayland_scanner = x; then
 	AC_MSG_ERROR([wayland-scanner is needed to compile weston])
 fi

 PKG_CHECK_MODULES(WAYLAND_SCANNER, wayland-scanner)

 AC_CONFIG_FILES([Makefile src/version.h src/weston.pc])

 AM_CONDITIONAL([HAVE_GIT_REPO], [test -f $srcdir/.git/logs/HEAD])

 AC_OUTPUT

 AC_MSG_RESULT([
 	Native Backend			${WESTON_NATIVE_BACKEND}
 	setuid Install			${enable_setuid_install}

 	Cairo Renderer			${with_cairo}
 	EGL				${enable_egl}
 	libxkbcommon			${enable_xkbcommon}
 	xcb_xkb				${have_xcb_xkb}
 	XWayland			${enable_xwayland}
 	dbus				${enable_dbus}

 	Build wcap utility		${enable_wcap_tools}

 	weston-launch utility		${enable_weston_launch}
 	systemd-login support		${have_systemd_login}

 	DRM Compositor			${enable_drm_compositor}
 	X11 Compositor			${enable_x11_compositor}
 	Wayland Compositor		${enable_wayland_compositor}
 	Headless Compositor		${enable_headless_compositor}
 	RPI Compositor			${enable_rpi_compositor}
 	FBDEV Compositor		${enable_fbdev_compositor}
 	RDP Compositor			${enable_rdp_compositor}

 	libinput Backend		${enable_libinput_backend}

 	Raspberry Pi BCM headers	${have_bcm_host}

 	Build Clients			${enable_clients}
 	Build EGL Clients		${have_cairo_egl}
 	Build Simple Clients		${enable_simple_clients}
 	Build Simple EGL Clients	${enable_simple_egl_clients}

 	Install Demo Clients		${enable_demo_clients_install}

 	Colord Support			${have_colord}
 	GLU Support			${have_glu}
 	LCMS2 Support			${have_lcms}
 	libwebp Support			${have_webp}
 	libunwind Support		${have_libunwind}
 	VA H.264 encoding Support	${have_libva}
 ])
	m4_define([weston_major_version], [1])
	m4_define([weston_minor_version], [4])
	m4_define([weston_micro_version], [0])
	m4_define([weston_version],
	[weston_major_version.weston_minor_version.weston_micro_version])

	AC_PREREQ([2.64])
	AC_INIT([weston],
	[weston_version],
	[https://bugs.freedesktop.org/enter_bug.cgi?product=Wayland&component=weston&version=weston_version],
	[weston],
	[http://wayland.freedesktop.org/])

	AC_SUBST([WESTON_VERSION_MAJOR], [weston_major_version])
	AC_SUBST([WESTON_VERSION_MINOR], [weston_minor_version])
	AC_SUBST([WESTON_VERSION_MICRO], [weston_micro_version])
	AC_SUBST([WESTON_VERSION], [weston_version])

	AC_CONFIG_AUX_DIR([build-aux])
	AC_CONFIG_HEADERS([config.h])

	AC_USE_SYSTEM_EXTENSIONS
	AC_SYS_LARGEFILE

	AM_INIT_AUTOMAKE([1.11 parallel-tests foreign no-dist-gzip dist-xz color-tests subdir-objects])

	AM_SILENT_RULES([yes])

	# Check for programs
	AC_PROG_CC
	AC_PROG_SED

	# Initialize libtool
	LT_PREREQ([2.2])
	LT_INIT([disable-static])

	AC_ARG_VAR([WESTON_NATIVE_BACKEND],
	[Set the native backend to use, if Weston is not running under Wayland nor X11. @<:@default=drm-backend.so@:>@])
	AC_ARG_VAR([WESTON_SHELL_CLIENT],
	[Set the default desktop shell client to load if none is specified in weston.ini. @<:@default=weston-desktop-shell@:>@])

	PKG_PROG_PKG_CONFIG()

	AC_CHECK_FUNC([dlopen], [],
	AC_CHECK_LIB([dl], [dlopen], DLOPEN_LIBS="-ldl"))
	AC_SUBST(DLOPEN_LIBS)

	AC_CHECK_DECL(SFD_CLOEXEC,[],
	[AC_MSG_ERROR("SFD_CLOEXEC is needed to compile weston")],
	[[#include <sys/signalfd.h>]])
	AC_CHECK_DECL(TFD_CLOEXEC,[],
	[AC_MSG_ERROR("TFD_CLOEXEC is needed to compile weston")],
	[[#include <sys/timerfd.h>]])
	AC_CHECK_DECL(CLOCK_MONOTONIC,[],
	[AC_MSG_ERROR("CLOCK_MONOTONIC is needed to compile weston")],
	[[#include <time.h>]])
	AC_CHECK_HEADERS([execinfo.h])

	AC_CHECK_FUNCS([mkostemp strchrnul initgroups posix_fallocate])

	COMPOSITOR_MODULES="wayland-server >= 1.3.90 pixman-1"

	AC_ARG_ENABLE(egl, [ --disable-egl],,
	enable_egl=yes)
	AM_CONDITIONAL(ENABLE_EGL, test x$enable_egl = xyes)
	if test x$enable_egl = xyes; then
	AC_DEFINE([ENABLE_EGL], [1], [Build Weston with EGL support])
	PKG_CHECK_MODULES(EGL, [egl >= 7.10 glesv2])
	PKG_CHECK_MODULES([EGL_TESTS], [egl >= 7.10 glesv2 wayland-client wayland-egl])
	fi

	AC_ARG_ENABLE(xkbcommon,
	AS_HELP_STRING([--disable-xkbcommon], [Disable libxkbcommon
	support: This is only useful in environments
	where you do not have a hardware keyboard. If
	libxkbcommon support is disabled clients will not
	be sent a keymap and and must know how to
	interpret the keycode sent for any key event.]),,
	enable_xkbcommon=yes)
	if test x$enable_xkbcommon = xyes; then
	AC_DEFINE(ENABLE_XKBCOMMON, [1], [Build Weston with libxkbcommon support])
	COMPOSITOR_MODULES="$COMPOSITOR_MODULES xkbcommon >= 0.3.0"
	fi

	AC_ARG_ENABLE(setuid-install, [ --enable-setuid-install],,
	enable_setuid_install=yes)
	AM_CONDITIONAL(ENABLE_SETUID_INSTALL, test x$enable_setuid_install = xyes)


	AC_ARG_ENABLE(xwayland, [ --enable-xwayland],,
	enable_xwayland=yes)
	AC_ARG_ENABLE(xwayland-test, [ --enable-xwayland-test],,
	enable_xwayland_test=yes)
	AM_CONDITIONAL(ENABLE_XWAYLAND, test x$enable_xwayland = xyes)
	AM_CONDITIONAL(ENABLE_XWAYLAND_TEST, test x$enable_xwayland = xyes -a x$enable_xwayland_test = xyes)
	if test x$enable_xwayland = xyes; then
	PKG_CHECK_MODULES([XWAYLAND], xcb xcb-xfixes xcb-composite xcursor cairo-xcb)
	AC_DEFINE([BUILD_XWAYLAND], [1], [Build the X server launcher])

	AC_ARG_WITH(xserver-path, AS_HELP_STRING([--with-xserver-path=PATH],
	[Path to X server]), [XSERVER_PATH="$withval"],
	[XSERVER_PATH="$bindir/Xorg"])
	AC_SUBST([XSERVER_PATH])
	if test x$enable_xwayland_test = xyes; then
	PKG_CHECK_MODULES([XWAYLAND_TEST], xcb xcb-dri2 libdrm)
	fi
	fi

	PKG_CHECK_MODULES(LIBDRM, [libdrm],
	[AC_DEFINE(HAVE_LIBDRM, 1, [Define if libdrm is available]) have_libdrm=yes], have_libdrm=no)

	AC_ARG_ENABLE(x11-compositor, [ --enable-x11-compositor],,
	enable_x11_compositor=yes)
	AM_CONDITIONAL(ENABLE_X11_COMPOSITOR, test x$enable_x11_compositor = xyes)
	if test x$enable_x11_compositor = xyes; then
	PKG_CHECK_MODULES([XCB], xcb)
	xcb_save_LIBS=$LIBS
	xcb_save_CFLAGS=$CFLAGS
	CFLAGS=$XCB_CFLAGS
	LIBS=$XCB_LIBS
	AC_CHECK_FUNCS([xcb_poll_for_queued_event])
	LIBS=$xcb_save_LIBS
	CFLAGS=$xcb_save_CFLAGS

	X11_COMPOSITOR_MODULES="x11 x11-xcb xcb-shm"

	PKG_CHECK_MODULES(X11_COMPOSITOR_XKB, [xcb-xkb],
	[have_xcb_xkb="yes"], [have_xcb_xkb="no"])
	if test "x$have_xcb_xkb" = xyes; then
	# Most versions of XCB have totally broken XKB bindings, where the
	# events don't work. Make sure we can actually use them.
	xcb_xkb_save_CFLAGS=$CFLAGS
	CFLAGS=$X11_COMPOSITOR_XKB_CFLAGS
	AC_CHECK_MEMBER([struct xcb_xkb_state_notify_event_t.xkbType],
	[], [have_xcb_xkb=no], [[#include <xcb/xkb.h>]])
	CFLAGS=$xcb_xkb_save_CFLAGS
	fi
	if test "x$have_xcb_xkb" = xyes; then
	X11_COMPOSITOR_MODULES="$X11_COMPOSITOR_MODULES xcb-xkb"
	AC_DEFINE([HAVE_XCB_XKB], [1], [libxcb supports XKB protocol])
	fi

	PKG_CHECK_MODULES(X11_COMPOSITOR, [$X11_COMPOSITOR_MODULES])
	AC_DEFINE([BUILD_X11_COMPOSITOR], [1], [Build the X11 compositor])
	fi


	AC_ARG_ENABLE(drm-compositor, [ --enable-drm-compositor],,
	enable_drm_compositor=yes)
	AM_CONDITIONAL(ENABLE_DRM_COMPOSITOR, test x$enable_drm_compositor = xyes)
	if test x$enable_drm_compositor = xyes; then
	AC_DEFINE([BUILD_DRM_COMPOSITOR], [1], [Build the DRM compositor])
	PKG_CHECK_MODULES(DRM_COMPOSITOR, [libudev >= 136 libdrm >= 2.4.30 gbm mtdev >= 1.1.0])
	fi


	AC_ARG_ENABLE(libinput-backend, [ --enable-libinput-backend],,
	enable_libinput_backend=no)
	AM_CONDITIONAL([ENABLE_LIBINPUT_BACKEND], [test x$enable_libinput_backend = xyes])
	if test x$enable_libinput_backend = xyes; then
	AC_DEFINE([BUILD_LIBINPUT_BACKEND], [1], [Build the libinput input device backend])
	PKG_CHECK_MODULES(LIBINPUT_BACKEND, [libinput >= 0.1.0])
	fi


	PKG_CHECK_MODULES(COMPOSITOR, [$COMPOSITOR_MODULES])

	AC_ARG_ENABLE(wayland-compositor, [ --enable-wayland-compositor],,
	enable_wayland_compositor=yes)
	AM_CONDITIONAL(ENABLE_WAYLAND_COMPOSITOR,
	test x$enable_wayland_compositor = xyes -a x$enable_egl = xyes)
	if test x$enable_wayland_compositor = xyes -a x$enable_egl = xyes; then
	AC_DEFINE([BUILD_WAYLAND_COMPOSITOR], [1],
	[Build the Wayland (nested) compositor])
	PKG_CHECK_MODULES(WAYLAND_COMPOSITOR, [wayland-client wayland-egl wayland-cursor])
	fi


	AC_ARG_ENABLE(headless-compositor, [ --enable-headless-compositor],,
	enable_headless_compositor=yes)
	AM_CONDITIONAL(ENABLE_HEADLESS_COMPOSITOR,
	test x$enable_headless_compositor = xyes)


	AC_ARG_ENABLE(rpi-compositor,
	AS_HELP_STRING([--disable-rpi-compositor],
	[do not build the Raspberry Pi backend]),,
	enable_rpi_compositor=yes)
	AM_CONDITIONAL(ENABLE_RPI_COMPOSITOR, test "x$enable_rpi_compositor" = "xyes")
	have_bcm_host="no"
	if test "x$enable_rpi_compositor" = "xyes"; then
	AC_DEFINE([BUILD_RPI_COMPOSITOR], [1], [Build the compositor for Raspberry Pi])
	PKG_CHECK_MODULES(RPI_COMPOSITOR, [libudev >= 136 mtdev >= 1.1.0])
	PKG_CHECK_MODULES(RPI_BCM_HOST, [bcm_host],
	[have_bcm_host="yes"
	AC_DEFINE([HAVE_BCM_HOST], [1], [have Raspberry Pi BCM headers])],
	[AC_MSG_WARN([Raspberry Pi BCM host libraries not found, will use stubs instead.])])
	fi
	AM_CONDITIONAL(INSTALL_RPI_COMPOSITOR, test "x$have_bcm_host" = "xyes")


	AC_ARG_ENABLE([fbdev-compositor], [ --enable-fbdev-compositor],,
	enable_fbdev_compositor=yes)
	AM_CONDITIONAL([ENABLE_FBDEV_COMPOSITOR],
	[test x$enable_fbdev_compositor = xyes])
	AS_IF([test x$enable_fbdev_compositor = xyes], [
	AC_DEFINE([BUILD_FBDEV_COMPOSITOR], [1], [Build the fbdev compositor])
	PKG_CHECK_MODULES([FBDEV_COMPOSITOR], [libudev >= 136 mtdev >= 1.1.0])
	])

	AC_ARG_ENABLE([rdp-compositor], [ --enable-rdp-compositor],,
	enable_rdp_compositor=no)
	AM_CONDITIONAL([ENABLE_RDP_COMPOSITOR],
	[test x$enable_rdp_compositor = xyes])
	if test x$enable_rdp_compositor = xyes; then
	AC_DEFINE([BUILD_RDP_COMPOSITOR], [1], [Build the RDP compositor])
	PKG_CHECK_MODULES(RDP_COMPOSITOR, [freerdp >= 1.1.0])

	SAVED_CPPFLAGS="$CPPFLAGS"
	CPPFLAGS="$CPPFLAGS $RDP_COMPOSITOR_CFLAGS"
	AC_CHECK_HEADERS([freerdp/version.h])
	CPPFLAGS="$SAVED_CPPFLAGS"
	fi

	AC_ARG_WITH(cairo,
	AS_HELP_STRING([--with-cairo=@<:@image\|gl\|glesv2@:>@]
	[Which Cairo renderer to use for the clients]),
	[],[with_cairo="image"])

	if test "x$with_cairo" = "ximage"; then
	cairo_modules="cairo"
	else
	if test "x$with_cairo" = "xgl"; then
	cairo_modules="cairo-gl"
	else
	if test "x$with_cairo" = "xglesv2"; then
	cairo_modules="cairo-glesv2"
	else
	AC_ERROR([Unknown cairo renderer requested])
	fi
	fi
	fi

	# Included for legacy compat
	AC_ARG_WITH(cairo-glesv2,
	AS_HELP_STRING([--with-cairo-glesv2],
	[Use GLESv2 cairo]))
	if test "x$with_cairo_glesv2" = "xyes"; then
	cairo_modules="cairo-glesv2"
	with_cairo="glesv2"
	fi

	if test "x$cairo_modules" = "xcairo-glesv2"; then
	AC_DEFINE([USE_CAIRO_GLESV2], [1], [Use the GLESv2 GL cairo backend])
	fi

	PKG_CHECK_MODULES(PIXMAN, [pixman-1])
	PKG_CHECK_MODULES(PNG, [libpng])
	PKG_CHECK_MODULES(WEBP, [libwebp], [have_webp=yes], [have_webp=no])
	AS_IF([test "x$have_webp" = "xyes"],
	[AC_DEFINE([HAVE_WEBP], [1], [Have webp])])

	AC_ARG_ENABLE(vaapi-recorder, [ --enable-vaapi-recorder],,
	enable_vaapi_recorder=auto)
	if test x$enable_vaapi_recorder != xno; then
	PKG_CHECK_MODULES(LIBVA, [libva >= 0.34.0 libva-drm >= 0.34.0],
	[have_libva=yes], [have_libva=no])
	if test "x$have_libva" = "xno" -a "x$enable_vaapi_recorder" = "xyes"; then
	AC_MSG_ERROR([vaapi-recorder explicitly enabled, but libva couldn't be found])
	fi
	AS_IF([test "x$have_libva" = "xyes"],
	[AC_DEFINE([BUILD_VAAPI_RECORDER], [1], [Build the vaapi recorder])])
	fi
	AM_CONDITIONAL(ENABLE_VAAPI_RECORDER, test "x$have_libva" = xyes)


	AC_CHECK_LIB([jpeg], [jpeg_CreateDecompress], have_jpeglib=yes)
	if test x$have_jpeglib = xyes; then
	JPEG_LIBS="-ljpeg"
	else
	AC_ERROR([libjpeg not found])
	fi
	AC_SUBST(JPEG_LIBS)

	PKG_CHECK_MODULES(CAIRO, [cairo])

	PKG_CHECK_MODULES(TEST_CLIENT, [wayland-client])

	AC_ARG_ENABLE(simple-clients,
	AS_HELP_STRING([--disable-simple-clients],
	[do not build the simple wl_shm clients]),,
	enable_simple_clients=yes)
	AM_CONDITIONAL(BUILD_SIMPLE_CLIENTS, test "x$enable_simple_clients" = "xyes")
	if test x$enable_simple_clients = xyes; then
	PKG_CHECK_MODULES(SIMPLE_CLIENT, [wayland-client])
	fi

	AC_ARG_ENABLE(simple-egl-clients,
	AS_HELP_STRING([--disable-simple-egl-clients],
	[do not build the simple EGL clients]),,
	enable_simple_egl_clients="$enable_egl")
	AM_CONDITIONAL(BUILD_SIMPLE_EGL_CLIENTS, test "x$enable_simple_egl_clients" = "xyes")
	if test x$enable_simple_egl_clients = xyes; then
	PKG_CHECK_MODULES(SIMPLE_EGL_CLIENT,
	[egl >= 7.10 glesv2 wayland-client wayland-egl wayland-cursor])
	fi

	AC_ARG_ENABLE(clients, [ --enable-clients],, enable_clients=yes)
	AM_CONDITIONAL(BUILD_CLIENTS, test x$enable_clients = xyes)
	if test x$enable_clients = xyes; then
	AC_DEFINE([BUILD_CLIENTS], [1], [Build the Wayland clients])

	PKG_CHECK_MODULES(CLIENT, [wayland-client cairo >= 1.10.0 xkbcommon wayland-cursor])
	PKG_CHECK_MODULES(SERVER, [wayland-server])
	PKG_CHECK_MODULES(WESTON_INFO, [wayland-client])

	# Only check for cairo-egl if a GL or GLES renderer requested
	AS_IF([test "x$cairo_modules" = "xcairo-gl" -o "x$cairo_modules" = "xcairo-glesv2"], [
	PKG_CHECK_MODULES(CAIRO_EGL, [wayland-egl egl >= 7.10 cairo-egl >= 1.11.3 $cairo_modules],
	[have_cairo_egl=yes], [have_cairo_egl=no])
	AS_IF([test "x$have_cairo_egl" = "xyes"],
	[AC_DEFINE([HAVE_CAIRO_EGL], [1], [Have cairo-egl])],
	[AC_ERROR([cairo-egl not used because $CAIRO_EGL_PKG_ERRORS])])],
	[have_cairo_egl=no])

	PKG_CHECK_MODULES(PANGO, [pangocairo], [have_pango=yes], [have_pango=no])
	fi

	AC_ARG_ENABLE(resize-optimization,
	AS_HELP_STRING([--disable-resize-optimization],
	[disable resize optimization allocating a big buffer in toytoolkit]),,
	enable_resize_optimization=yes)
	AS_IF([test "x$enable_resize_optimization" = "xyes"],
	[AC_DEFINE([USE_RESIZE_POOL], [1], [Use resize memory pool as a performance optimization])])

	PKG_CHECK_MODULES(SYSTEMD_LOGIN, [libsystemd-login >= 198],
	[have_systemd_login=yes], [have_systemd_login=no])
	AS_IF([test "x$have_systemd_login" = "xyes"],
	[AC_DEFINE([HAVE_SYSTEMD_LOGIN], [1], [Have systemd-login])])
	AM_CONDITIONAL(HAVE_SYSTEMD_LOGIN, test "x$have_systemd_login" = "xyes")

	PKG_CHECK_MODULES(SYSTEMD_LOGIN_209, [libsystemd-login >= 209],
	[have_systemd_login_209=yes], [have_systemd_login_209=no])
	AS_IF([test "x$have_systemd_login_209" = "xyes"],
	[AC_DEFINE([HAVE_SYSTEMD_LOGIN_209], [1], [Have systemd-login >= 209])])

	AC_ARG_ENABLE(weston-launch, [ --enable-weston-launch],, enable_weston_launch=yes)
	AM_CONDITIONAL(BUILD_WESTON_LAUNCH, test x$enable_weston_launch == xyes)
	if test x$enable_weston_launch == xyes; then
	AC_CHECK_LIB([pam], [pam_open_session], [have_pam=yes], [have_pam=no])
	if test x$have_pam == xno; then
	AC_ERROR([weston-launch requires pam])
	fi
	PAM_LIBS=-lpam
	AC_SUBST(PAM_LIBS)
	fi

	if test x$enable_egl = xyes; then
	PKG_CHECK_MODULES(GLU, [glu], [have_glu=yes], [have_glu=no])
	fi
	AM_CONDITIONAL(HAVE_GLU, test "x$have_glu" = "xyes")

	AM_CONDITIONAL(HAVE_PANGO, test "x$have_pango" = "xyes")

	AM_CONDITIONAL(HAVE_CAIRO_GLESV2,
	[test "x$have_cairo_egl" = "xyes" -a "x$cairo_modules" = "xcairo-glesv2" -a "x$enable_egl" = "xyes"])

	AM_CONDITIONAL(BUILD_FULL_GL_CLIENTS,
	test x$cairo_modules = "xcairo-gl" -a "x$have_cairo_egl" = "xyes" -a "x$enable_egl" = "xyes")

	AM_CONDITIONAL(BUILD_SUBSURFACES_CLIENT,
	[test '(' "x$have_cairo_egl" != "xyes" -o "x$cairo_modules" = "xcairo-glesv2" ')' -a "x$enable_simple_egl_clients" = "xyes"])

	AM_CONDITIONAL(ENABLE_DESKTOP_SHELL, true)

	# CMS modules
	AC_ARG_ENABLE(colord,
	AS_HELP_STRING([--disable-colord],
	[do not build colord CMS support]),,
	enable_colord=auto)
	if test "x$enable_colord" != "xno"; then
	PKG_CHECK_MODULES(COLORD,
	colord >= 0.1.27,
	have_colord=yes,
	have_colord=no)
	if test "x$have_colord" = "xno" -a "x$enable_colord" = "xyes"; then
	AC_MSG_ERROR([colord support explicitly requested, but colord couldn't be found])
	fi
	if test "x$have_colord" = "xyes"; then
	enable_colord=yes
	fi
	fi
	AM_CONDITIONAL(ENABLE_COLORD, test "x$enable_colord" = "xyes")

	# dbus support
	AC_ARG_ENABLE(dbus,
	AS_HELP_STRING([--disable-dbus],
	[do not build with dbus support]),,
	enable_dbus=auto)
	if test "x$enable_dbus" != "xno"; then
	PKG_CHECK_MODULES(DBUS,
	dbus-1 >= 1.6,
	have_dbus=yes,
	have_dbus=no)
	if test "x$have_dbus" = "xno" -a "x$enable_dbus" = "xyes"; then
	AC_MSG_ERROR([dbus support explicitly requested, but libdbus couldn't be found])
	fi
	if test "x$have_dbus" = "xyes"; then
	enable_dbus=yes
	AC_DEFINE([HAVE_DBUS], [1], [Build with dbus support])
	else
	enable_dbus=no
	fi
	fi
	AM_CONDITIONAL(ENABLE_DBUS, test "x$enable_dbus" = "xyes")

	AC_ARG_ENABLE(wcap-tools, [ --disable-wcap-tools],, enable_wcap_tools=yes)
	AM_CONDITIONAL(BUILD_WCAP_TOOLS, test x$enable_wcap_tools = xyes)
	if test x$enable_wcap_tools = xyes; then
	AC_DEFINE([BUILD_WCAP_TOOLS], [1], [Build the wcap tools])
	PKG_CHECK_MODULES(WCAP, [cairo])
	WCAP_LIBS="$WCAP_LIBS -lm"
	fi

	PKG_CHECK_MODULES(SETBACKLIGHT, [libudev libdrm], enable_setbacklight=yes, enable_setbacklight=no)
	AM_CONDITIONAL(BUILD_SETBACKLIGHT, test "x$enable_setbacklight" = "xyes")

	if test "x$GCC" = "xyes"; then
	GCC_CFLAGS="-Wall -Wextra -Wno-unused-parameter \
	-Wno-missing-field-initializers -g -fvisibility=hidden \
	-Wstrict-prototypes -Wmissing-prototypes -Wsign-compare"
	fi
	AC_SUBST(GCC_CFLAGS)

	AC_ARG_ENABLE(libunwind,
	AS_HELP_STRING([--disable-libunwind],
	[Disable libunwind usage for backtraces]),,
	enable_libunwind=auto)
	AM_CONDITIONAL(HAVE_LIBUNWIND, [test "x$enable_libunwind" = xyes])
	if test "x$enable_libunwind" != "xno"; then
	PKG_CHECK_MODULES(LIBUNWIND,
	libunwind,
	have_libunwind=yes,
	have_libunwind=no)
	if test "x$have_libunwind" = "xno" -a "x$enable_libunwind" = "xyes"; then
	AC_MSG_ERROR([libunwind support explicitly requested, but libunwind couldn't be found])
	fi
	if test "x$have_libunwind" = "xyes"; then
	enable_libunwind=yes
	AC_DEFINE(HAVE_LIBUNWIND, 1, [Have libunwind support])
	fi
	fi


	if test "x$WESTON_NATIVE_BACKEND" = "x"; then
	WESTON_NATIVE_BACKEND="drm-backend.so"
	fi
	AC_MSG_NOTICE([Weston's native backend: $WESTON_NATIVE_BACKEND])
	AC_DEFINE_UNQUOTED([WESTON_NATIVE_BACKEND], ["$WESTON_NATIVE_BACKEND"],
	[The default backend to load, if not wayland nor x11.])

	if test "x$WESTON_SHELL_CLIENT" = "x"; then
	WESTON_SHELL_CLIENT="weston-desktop-shell"
	fi
	AC_MSG_NOTICE([Weston's default desktop shell client: $WESTON_SHELL_CLIENT])
	AC_DEFINE_UNQUOTED([WESTON_SHELL_CLIENT], ["$WESTON_SHELL_CLIENT"],
	[The default desktop shell client to load.])

	AC_ARG_ENABLE(demo-clients-install,
	AS_HELP_STRING([--enable-demo-clients-install],
	[Install demo clients built with weston]),,
	enable_demo_clients_install=no)
	AM_CONDITIONAL(INSTALL_DEMO_CLIENTS, [test "x$enable_demo_clients_install" = "xyes"])

	PKG_CHECK_MODULES(LCMS, lcms2,
	[have_lcms=yes], [have_lcms=no])
	if test "x$have_lcms" = xyes; then
	AC_DEFINE(HAVE_LCMS, 1, [Have lcms support])
	fi
	AM_CONDITIONAL(HAVE_LCMS, [test "x$have_lcms" = xyes])

	AC_PATH_PROG([wayland_scanner], [wayland-scanner])
	if test x$wayland_scanner = x; then
	AC_MSG_ERROR([wayland-scanner is needed to compile weston])
	fi

	PKG_CHECK_MODULES(WAYLAND_SCANNER, wayland-scanner)

	AC_CONFIG_FILES([Makefile src/version.h src/weston.pc])

	AM_CONDITIONAL([HAVE_GIT_REPO], [test -f $srcdir/.git/logs/HEAD])

	AC_OUTPUT

	AC_MSG_RESULT([
	Native Backend ${WESTON_NATIVE_BACKEND}
	setuid Install ${enable_setuid_install}

	Cairo Renderer ${with_cairo}
	EGL ${enable_egl}
	libxkbcommon ${enable_xkbcommon}
	xcb_xkb ${have_xcb_xkb}
	XWayland ${enable_xwayland}
	dbus ${enable_dbus}

	Build wcap utility ${enable_wcap_tools}

	weston-launch utility ${enable_weston_launch}
	systemd-login support ${have_systemd_login}

	DRM Compositor ${enable_drm_compositor}
	X11 Compositor ${enable_x11_compositor}
	Wayland Compositor ${enable_wayland_compositor}
	Headless Compositor ${enable_headless_compositor}
	RPI Compositor ${enable_rpi_compositor}
	FBDEV Compositor ${enable_fbdev_compositor}
	RDP Compositor ${enable_rdp_compositor}

	libinput Backend ${enable_libinput_backend}

	Raspberry Pi BCM headers ${have_bcm_host}

	Build Clients ${enable_clients}
	Build EGL Clients ${have_cairo_egl}
	Build Simple Clients ${enable_simple_clients}
	Build Simple EGL Clients ${enable_simple_egl_clients}

	Install Demo Clients ${enable_demo_clients_install}

	Colord Support ${have_colord}
	GLU Support ${have_glu}
	LCMS2 Support ${have_lcms}
	libwebp Support ${have_webp}
	libunwind Support ${have_libunwind}
	VA H.264 encoding Support ${have_libva}
	])