dnl $Id$
dnl Process this file with autoconf to produce a configure script.

AC_PREREQ(2.59)

dnl Should perhaps add the ggi-develop ML as the 3rd argument
dnl to AC_INIT but someone has to take care of the spam...
AC_INIT([libggi],[2.2.2],[http://www.ggi-project.org/contact.html])
AC_CONFIG_SRCDIR([include/ggi/ggi.h])
AC_CONFIG_MACRO_DIR(m4)

AM_INIT_AUTOMAKE([libggi],[2.2.2],[-])

AM_MAINTAINER_MODE


AC_CANONICAL_BUILD
AC_CANONICAL_HOST

dnl ========================================================================
dnl Set some defaults

PATHTAG="pAtHTAg"
TAGLEN="7"
ggi_conffile="libggi.conf"
ggi_subdir="ggi"

use_debug="yes"

sublib_libs=""
bsdsock_libs=""

dnl Common useable Targets
build_x_target="auto"
build_x_dbe_target="auto"
build_x_evi_target="auto"
build_x_shm_target="auto"
build_x_xf86dga_target="auto"
build_x_xf86vmode_target="auto"
build_file_target="auto"
build_kgi_target="no"
build_accel="yes"
build_libkgi_target="no"
build_suidkgi_target="no"
build_memory_target="yes"
build_terminfo_target="auto"

dnl Linux specific Targets
build_aa_target="auto"
build_fbdev_target="auto"
build_directfb_renderer="auto"
build_glide_target="auto"
build_lcd823_target="auto"
build_monotext_target="auto"
build_svga_target="auto"
build_vcsa_target="auto"

dnl FreeBSD specific Targets
build_vgl_target="auto"

dnl Win32 specific Targets
build_directx_target="auto"

dnl MacOS X specific Targets
build_quartz_target="auto"

dnl PseudoTargets
build_multi_target="yes"
build_tile_target="auto"
build_palemu_target="auto"
build_truemu_target="auto"
build_sub_target="auto"
build_ipc_target="auto"
build_tele_target="auto"

dnl Helpers
build_mansync_helper="yes"
build_vgagl_helper="auto"
build_linvtsw_helper="auto"

dnl SWAR selection: yes = compile this swar, no = don't compile,
dnl auto = compiles the swar if CC supports it,
dnl build = compiles the swar if the CPU on the build system supports it.
dnl do_64bitc="auto"
dnl do_mmx="auto"
dnl do_3dnow="auto"
dnl do_vis="auto"
dnl do_mvi="auto"

dnl Disable SWARs for two reasons:
dnl 1. SWARs are still alpha
dnl 2. People have encountered compiling problems with asm code
do_noswar="yes"
do_64bitc="no"
do_mmx="no"
do_3dnow="no"
do_vis="no"
do_mvi="no"


dnl ========================================================================
dnl Checks for programs.

AC_PROG_AWK
AC_PROG_CC
AC_PROG_CPP
AC_PROG_INSTALL
AC_PROG_LN_S
AC_PROG_MAKE_SET
AC_PROG_RANLIB

dnl Make Objective-C work with automake >= 1.7.x
AM_CONDITIONAL([am__fastdepOBJC], false)

LT_INIT([win32-dll])

dnl ========================================================================
dnl Generate libtool

LT_OUTPUT

dnl ========================================================================
dnl User selectable options


dnl Bah! autoconf hasn't set prefix to it's default value yet!
# if $prefix is set here then gcc warns about reordered system and non-system
# dirs. ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
# should be ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$" | grep -v '^[^\:]*: warning:'` if we don't drop.
# (ac_err should ignore warnings produced by $ac_try_prog too)
# Note, that this might be a autoconf 2.13 issue.
# When we do not set prefix here, then --with-gii does NOT default to --prefix then.
test "x$prefix" = xNONE && prefix=$ac_default_prefix
test "x$exec_prefix" = xNONE && exec_prefix='${prefix}'


dnl TARGETS:

dnl Common useable Targets
AC_ARG_ENABLE(x,
[  --disable-x             don't build the X target  (uses memory-target as backbuffer)],
build_x_target=$enableval)
AC_ARG_ENABLE(file,
[  --disable-file          don't build the file target],
build_file_target=$enableval)
AC_ARG_ENABLE(kgi,
[  --disable-kgi           don't build the kgi target],
build_kgi_target=$enableval)
AC_ARG_ENABLE(accel,
[  --disable-accel         don't build the accel],
build_accel=$enableval)
AC_ARG_ENABLE(libkgi,
[  --disable-libkgi        don't build the libkgi target],
build_libkgi_target=$enableval)
dnl AC_ARG_ENABLE(suidkgi,
dnl [  --enable-suidkgi        build the suidkgi target],
dnl build_suidkgi_target=$enableval)
AC_ARG_ENABLE(memory,
[  --disable-memory        don't build the memory target],
build_memory_target=$enableval)
AC_ARG_ENABLE(mansync,
[  --disable-mansync       don't build the mansync helper],
build_mansync_target=$enableval)
AC_ARG_ENABLE(terminfo,
[  --disable-terminfo      don't build the terminfo target],
build_terminfo_target=$enableval)


dnl Linux specific Targets
AC_ARG_ENABLE(aa,
[  --disable-aa            don't build the aa target],
build_aa_target=$enableval)
AC_ARG_ENABLE(fbdev,
[  --disable-fbdev         don't build the fbdev target],
build_fbdev_target=$enableval)
AC_ARG_ENABLE(directfb,
[  --disable-directfb      don't build the directfb renderer],
build_directfb_renderer=$enableval)
AC_ARG_WITH(directfb,
[  --with-directfb=DIR     find directfb drivers modules in DIR],
  build_directfb_renderer=yes
  directfb_driver_dir=$withval,
  directfb_driver_dir=/usr/lib/directfb/gfxdrivers)
AC_ARG_ENABLE(glide,
[  --disable-glide         don't build the glide target],
build_glide_target=$enableval)
AC_ARG_ENABLE(monotext,
[  --disable-monotext      don't build the monotext target],
build_monotext_target=$enableval)
AC_ARG_ENABLE(svga,
[  --disable-svga          don't build the svga target],
build_svga_target=$enableval)
AC_ARG_ENABLE(vcsa,
[  --disable-vcsa          don't build the vcsa target],
build_vcsa_target=$enableval)


dnl FreeBSD specific Targets
AC_ARG_ENABLE(vgl,
[  --disable-vgl           don't build the vgl target],
build_vgl_target=$enableval)


dnl Win32 specific Targets
AC_ARG_ENABLE(directx,
[  --disable-directx       don't build the directx target],
build_directx_target=$enableval)


dnl MacOS X specific Targets
AC_ARG_ENABLE(quartz,
[  --disable-quartz       don't build the quartz target],
build_quartz_target=$enableval)


dnl PseudoTargets
AC_ARG_ENABLE(multi,
[  --disable-multi         don't build the multi target],
build_multi_target=$enableval)
AC_ARG_ENABLE(tile,
[  --disable-tile          don't build the tile target],
build_tile_target=$enableval)
AC_ARG_ENABLE(palemu,
[  --disable-palemu        don't build the palemu target],
build_palemu_target=$enableval)
AC_ARG_ENABLE(trueemu,
[  --disable-trueemu       don't build the trueemu target],
build_trueemu_target=$enableval)
AC_ARG_ENABLE(sub,
[  --disable-sub           don't build the sub target],
build_sub_target=$enableval)
AC_ARG_ENABLE(ipc,
[  --disable-ipc            don't build the ipc target],
build_ipc_target=$enableval)
AC_ARG_ENABLE(tele,
[  --disable-tele          don't build the tele target],
build_tele_target=$enableval)


dnl Helpers
AC_ARG_ENABLE(vgagl,
[  --disable-vgagl         don't build the vgagl target, needed by svga],
build_vgagl_helper=$enableval)
AC_ARG_ENABLE(linvtsw,
[  --disable-linvtsw       don't build the linvtsw helper],
build_linvtsw_helper=$enableval)



GII_INST_PATH
GII_UNINST_PATH

AC_ARG_ENABLE(debug,
[  --disable-debug         don't build with run-time debugging (speed freaks)],
use_debug=$enableval)

AC_ARG_ENABLE(64bitc,
[  --disable-64bitc        don't build 64-bit C SWAR code],
do_64bitc=$enableval)

AC_ARG_ENABLE(noswar,
[  --disable-noswar        don't build non-SWAR code],
do_noswar=$enableval)

AC_ARG_ENABLE(mmx,
[  --disable-mmx           don't build MMX SWAR code],
do_mmx=$enableval)

AC_ARG_ENABLE(vis,
[  --disable-vis           don't build VIS SWAR code],
do_vis=$enableval)

AC_ARG_ENABLE(mvi,
[  --disable-mvi           don't build MVI SWAR code],
do_mvi=$enableval)

dnl Support the --with-extra-libs and --with-extra-includes command line
dnl options to 'configure'. 
GGI_EXTRA_PATHS


dnl
dnl ========================================================================
dnl Checks for platform specificas

GGI_CHECK_STRING_FUNCS
GGI_CC_CHECK4_OPTION([pedantic])
GGI_CHECK_IMPLICIT_DECLARATIONS

dnl ========================================================================
dnl Checks for header files.

AC_HEADER_DIRENT
AC_HEADER_STDC

GGI_NEED_INTTYPES

AC_CHECK_HEADERS(ggi/gii.h limits.h unistd.h fcntl.h getopt.h sys/times.h \
sys/select.h sys/ioctl.h signal.h sys/time.h sys/shm.h sys/ipc.h \
sys/kd.h linux/kd.h sys/vt.h linux/vt.h \
linux/kdev_t.h linux/major.h glide.h glide/glide.h kgimon.h sys/un.h \
sys/socket.h netinet/in.h netdb.h windows.h linux/h3600_ts.h \
asm/sharp_ts.h \
ApplicationServices/ApplicationServices.h)

AC_CHECK_HEADERS(winsock.h winsock2.h ddraw.h, [], [],
	[#ifdef HAVE_WINDOWS_H
	 # include <windows.h>
	 #endif])

AC_CHECK_HEADERS([sys/fbio.h])
AC_CHECK_HEADERS([vgl.h], [], [],
	[#ifdef HAVE_SYS_FBIO_H
	 # include <sys/fbio.h>
	 #endif])


dnl ========================================================================
dnl Check header files dependencies.

dnl Disable targets requiring non-existing headers
if test "x$ac_cv_header_sys_shm_h" != "xyes"; then
	build_x_shm_target="no"
	build_ipc_target="no"
fi

if test "x$ac_cv_header_ddraw_h" != "xyes"; then
	build_directx_target="no"
fi

dnl ========================================================================
dnl Checks for typedefs, structures, and compiler characteristics.

AC_C_CONST
AC_C_INLINE
AC_TYPE_OFF_T
AC_TYPE_PID_T
AC_TYPE_SIZE_T
AC_CHECK_MEMBERS([struct stat.st_rdev],[AC_DEFINE(HAVE_ST_RDEV, 1,
			    [Define to 1 if your `struct stat' has `st_rdev'.
			     Deprecated, use `HAVE_STRUCT_STAT_ST_RDEV'
			     instead.])])

AC_HEADER_TIME
AC_STRUCT_TM
AC_TYPE_SIGNAL

GGI_DLLEXT
GGI_CHECKOS

dnl check for socklen_t
dnl Define HAVE_SOCKLEN_T if found.
if test "$ac_cv_header_sys_socket_h" = "yes"; then

	AC_MSG_CHECKING([whether socklen_t is available])
	AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
		#include <sys/types.h>
		#include <sys/socket.h>
		#ifdef HAVE_SYS_UN_H
		#include <sys/un.h>
		#endif]], [[socklen_t len;]])],[AC_MSG_RESULT(yes)
		AC_DEFINE([HAVE_SOCKLEN_T], [1],
			[Define if socklen_t type is supported.])],[AC_MSG_RESULT(no)])
fi

dnl ========================================================================
dnl Checks for library functions.

AC_FUNC_ALLOCA
AC_FUNC_MEMCMP
AC_FUNC_MMAP
AC_FUNC_VPRINTF
AC_CHECK_FUNCS(gettimeofday select strdup strerror setenv putenv getopt \
	random herror gethostbyname sigpending fork kill)

dnl ========================================================================
dnl LibGII must be built

if test "x$ac_cv_header_ggi_gii_h" != "xyes"; then
  AC_MSG_ERROR([Either wrong include path is used or LibGII is
		not properly installed on the system. You need LibGII for building
		LibGGI. Please compile LibGII first.])
fi

GGI_CHECK_LIB(gii,giiInit,
  GGI_CHECK_LIB(gg,ggGetSwarType,
	foo=bar,
	AC_MSG_ERROR([You have an obsolete LibGII version installed!])
  ),
  AC_MSG_ERROR([LibGII is not properly installed on the system.
		You need LibGII for building LibGGI. Please compile
		LibGII first.])
)



dnl ========================================================================
dnl Check function dependencies.

dnl TODO: Disable targets requiring non-existing functions.

dnl ========================================================================
dnl Checks whether to compile in various SWARs

if test "x$do_noswar" = "xyes"; then
   AC_DEFINE([DO_SWAR_NONE], [1],
		[Defines for SWAR selection])
fi

AC_MSG_CHECKING(if LibGII build detected working int64)
AC_PREPROC_IFELSE([AC_LANG_SOURCE([[
#include <ggi/system.h>
#ifdef GG_HAVE_INT64
#else
#error No 64-bit ints - this line makes compilation fail...
#endif
]])],[dnl do test for do_64bitc == "build" here.
  if test "x$do_64bitc" = "xauto"; then
    do_64bitc="yes"
  fi
  AC_MSG_RESULT(yes)],[AC_MSG_RESULT(no)
  if test "x$do_64bitc" = "xyes"; then
    AC_MSG_ERROR(Cannot build 64bit C SWAR against 32-bit LibGG)
  fi
  if test "x$do_mvi" = "xyes"; then
    AC_MSG_ERROR(Cannot build MVI SWAR against 32-bit LibGG)
  fi
  if test "x$do_vis" = "xyes"; then
    AC_MSG_ERROR(Cannot build VIS SWAR against 32-bit LibGG)
  fi
  do_64bitc="no"
  do_vis="no"
  do_mvi="no"])

if test "x$do_64bitc" = "xyes"; then 
   AC_DEFINE([DO_SWAR_64BITC], [1],
		[Defines for SWAR selection])
fi

AC_CC_CAN_EMMS
if test "x$do_mmx" = "xyes"; then 
   if test "x$ac_cc_can_emms" != "xyes"; then
      AC_MSG_ERROR([MMX requested, but compiler cannot compile MMX!])
      do_mmx=no
   fi
fi
if test "x$do_mmx" = "xbuild"; then
   AC_CPU_CAN_EMMS
   if test "x$ac_cpu_can_emms" = "xyes"; then
      do_mmx=auto
   else
      do_mmx=no
   fi
fi
if test "x$do_mmx" = "xauto"; then
   if test "x$ac_cc_can_emms" = "xyes"; then
      do_mmx=yes
   else
      do_mmx=no
   fi
fi
if test "x$do_mmx" = "xyes"; then 
   AC_DEFINE([DO_SWAR_MMX], [1],
		[Defines for SWAR selection])
fi

AC_CC_CAN_FEMMS
if test "x$do_3dnow" = "xyes"; then
   if test "x$ac_cc_can_femms" != "xyes"; then
      AC_MSG_ERROR([3DNOW requested, but compiler cannot compile 3DNOW!])
      do_3dnow=no
   fi
fi
if test "x$do_3dnow" = "xbuild"; then
   AC_CPU_CAN_FEMMS
   if test "x$ac_cpu_can_femms" = "xyes"; then
      do_3dnow=auto
   else
      do_3dnow=no
   fi
fi
if test "x$do_3dnow" = "xauto"; then
   if test "x$ac_cc_can_femms" = "xyes"; then
      do_3dnow=yes
   else
      do_3dnow=no
   fi
fi
if test "x$do_3dnow" = "xyes"; then 
   AC_DEFINE([DO_SWAR_3DNOW], [1],
		[Defines for SWAR selection])
fi

AC_CC_CAN_FALIGNDATA
if test "x$do_vis" = "xyes"; then
   if test "x$ac_cc_can_faligndata" != "xyes"; then
      AC_MSG_ERROR([VIS requested, but compiler cannot compile VIS!])
      do_vis=no
   fi
fi
if test "x$do_vis" = "xbuild"; then
   AC_CPU_CAN_FALIGNDATA
   if test "x$ac_cpu_can_faligndata" = "xyes"; then
      do_vis=auto
   else
      do_vis=no
   fi
fi
if test "x$do_vis" = "xauto"; then
   if test "x$ac_cc_can_faligndata" = "xyes"; then
      do_vis=yes
   else
      do_vis=no
   fi
fi
if test "x$do_vis" = "xyes"; then 
   AC_DEFINE([DO_SWAR_VIS], [1],
		[Defines for SWAR selection])
fi

AC_CC_CAN_PKLB
if test "x$do_mvi" = "xyes"; then
   if test "x$ac_cc_can_pklb" != "xyes"; then
      AC_MSG_ERROR([MVI requested, but compiler cannot compile MVI!])
      do_mvi=no
   fi
fi
if test "x$do_mvi" = "xbuild"; then
   AC_CPU_CAN_PKLB
   if test "x$ac_cpu_can_pklb" = "xyes"; then
      do_mvi=auto
   else
      do_mvi=no
   fi
fi
if test "x$do_mvi" = "xauto"; then
   if test "x$ac_cc_can_pklb" = "xyes"; then
      do_mvi=yes
   else
      do_mvi=no
   fi
fi
if test "x$do_mvi" = "xyes"; then 
   AC_DEFINE([DO_SWAR_MVI], [1],
		[Defines for SWAR selection])
fi

dnl ========================================================================
dnl Checks for target-specific libraries and headers


AC_CHECK_LIB(socket, connect,
  bsdsock_libs="$bsdsock_libs -lsocket",
  AC_CHECK_LIB(c, connect,
    ,
    SAVELIBS="$LIBS"
    SAVECC="$CC"
    AC_MSG_CHECKING([for connect in -lwsock32])
    LIBS="$LIBS -lwsock32"
    CC="$SHELL ./libtool --mode=link $CC"
    AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <winsock.h>]], [[connect(0, NULL, 42);]])],[bsdsock_libs="$bsdsock_libs -lwsock32"
      ac_cv_func_connect=yes
      AC_MSG_RESULT(yes)],[AC_MSG_RESULT(no)
    ])
    LIBS="$SAVELIBS"
    CC="$SAVECC"
  )
)


if test "x$ac_cv_func_gethostbyname" = "xno"; then
  AC_CHECK_LIB(c, gethostbyname, ,
    AC_CHECK_LIB(nsl, gethostbyname, bsdsock_libs="$bsdsock_libs -lnsl")
  )
fi


TESTSUBDIRS=""
DISPLAYSUBDIRS=""
DEFAULTSUBDIRS="stubs pseudo_stubs color text_16 text_32 linear_1 linear_1_r linear_2 linear_4 linear_4_r linear_8 linear_16 linear_24 linear_32 planar ilbm iplanar_2p"
XSUBDIRS=""
FBDEVSUBDIRS=""
DISPLAYMODULES=""
HELPERMODULES=""
DEFAULTMODULES=""
DEFAULTFBDEVMODULES=""
DEFAULTKGIMODULES=""

if test "$enable_shared" = "yes"; then
  DISPLAYMODULES="auto.la"
  DEFAULTMODULES="stubs.la pseudo_stubs.la color.la text_16.la text_32.la linear_1.la linear_1_r.la linear_2.la linear_4.la linear_4_r.la linear_8.la linear_16.la linear_24.la linear_32.la planar.la ilbm.la iplanar_2p.la"
fi
if test "$enable_static" = "yes"; then
  AC_DEFINE(BUILTIN_DEFAULT, 1, [Support for builtin default renderers])
  AC_DEFINE(BUILTIN_DISPLAY, 1, [Support for builtin display targets])
fi
AM_CONDITIONAL(BUILTIN_DEFAULT,
		test "$enable_static" = "yes")
AM_CONDITIONAL(BUILTIN_DISPLAY,
		test "$enable_static" = "yes")


memory_dependent="x"
if test "x$build_memory_target" = "xno"; then
  AC_MSG_WARN(the following targets depend on the memory target)
  AC_MSG_WARN(and will not be built: $memory_dependent)
  build_x_target="no"
fi

mansync_dependent="x aa tile palemu trueemu"
AC_MSG_CHECKING(if we should build the mansync helper)
if test "x$build_mansync_helper" = "xno"; then
  AC_MSG_RESULT(no)
  AC_MSG_WARN(the following targets depend on the mansync helper)
  AC_MSG_WARN(and will not be built: $mansync_dependent)
  build_x_target="no"
  build_aa_target="no"
  build_tile_target="no"
  build_palemu_target="no"
  build_trueemu_target="no"
else
  DISPLAYSUBDIRS="$DISPLAYSUBDIRS mansync"
  TESTSUBDIRS="$TESTSUBDIRS display.mansync"
  if test "$enable_shared" = "yes"; then
    DISPLAYMODULES="$DISPLAYMODULES mansync.la"
  fi
  if test "$enable_static" = "yes"; then
    AC_DEFINE(BUILTIN_HELPER_MANSYNC, 1, [Support for builtin helper-mansync])
  fi
  build_mansync_helper="yes"
  AC_MSG_RESULT(yes)
fi
AM_CONDITIONAL(BUILTIN_HELPER_MANSYNC,
		test "$enable_static" = "yes" -a \
			"x$build_mansync_helper" != "xno")


if test "x$build_x_target" != "xno"; then
  AC_PATH_XTRA
  if test "x$no_x" = "xyes"; then
    build_x_target="no"
  else


dnl This is necessary as there are plattforms, where
dnl $(ac_)x_includes does NOT belong to the default search
dnl path. Darwin is such a system, for example.
dnl $(ac_)x_includes contains the right path to the X
dnl includes (/usr/X11R6/include on most systems).

    cflags_old="$CFLAGS"
    cppflags_old="$CPPFLAGS"
    if test -z "$x_includes" -o "x$x_includes" = "xNONE"; then
	x_includes="$ac_x_includes"
    fi
    if test -n "$x_includes" -a "x$x_includes" != "xNONE"; then
	CFLAGS="$CFLAGS -I$x_includes"
	CPPFLAGS="$CPPFLAGS -I$x_includes"
    fi

    dnl XInitImage is not available on X11R5.
    dnl Should the dga target be disabled if
    dnl XInitImage is not found?
    libs_old="$LIBS"
    LIBS="$LIBS $X_LIBS -lXext -lX11 $X_EXTRA_LIBS"
    AC_CHECK_FUNCS(XInitImage)
    LIBS="$libs_old"

    AC_CHECK_HEADERS(X11/extensions/xf86dga.h	\
		X11/extensions/Xdbe.h		\
		X11/extensions/XEVI.h		\
		X11/extensions/XShm.h		\
		X11/extensions/xf86vmstr.h	\
		X11/extensions/xf86vmode.h, [], [],
		[#include <X11/Xlib.h>])
    CFLAGS="$cflags_old"
    CPPFLAGS="$cppflags_old"

    if test "x$ac_cv_header_X11_extensions_Xdbe_h" != "xyes"; then
	build_x_dbe_target="no"
    fi
    if test "x$ac_cv_header_X11_extensions_XEVI_h" != "xyes"; then
	build_x_evi_target="no"
    fi
    if test "x$ac_cv_header_X11_extensions_XShm_h" != "xyes"; then
	build_x_shm_target="no"
    fi
    if test "x$ac_cv_header_X11_extensions_xf86dga_h" != "xyes"; then
	build_x_xf86dga_target="no"
    fi
    if test "x$ac_cv_header_X11_extensions_xf86vmode_h" != "xyes"; then
	build_x_xf86vmode_target="no"
    fi

    x_helper_xf86dga_libs=""
    x_helper_xf86vm_libs=""

    AC_CHECK_LIB(Xxf86dga_pic, XF86DGAQueryVersion,
	x_helper_xf86dga_libs="-lXxf86dga_pic",
	AC_CHECK_LIB(Xxf86dga, XF86DGAQueryVersion,
		x_helper_xf86dga_libs="-lXxf86dga",
  		build_x_xf86dga_target=no,
		[ $X_LIBS -lXext -lX11 $X_EXTRA_LIBS ]),
	[ $X_LIBS -lXext -lX11 $X_EXTRA_LIBS ])

    dnl XFree86 3.x has broken dga support
    cflags_old="$CFLAGS"
    cppflags_old="$CPPFLAGS"
    if test -n "$x_includes" -a "x$x_includes" != "xNONE"; then
	CFLAGS="$CFLAGS -I$x_includes"
	CPPFLAGS="$CPPFLAGS -I$x_includes"
    fi
    if test "x$build_x_xf86dga_target" != "xno"
    then
    	AC_MSG_CHECKING(for XFree86-DGA version 2.0)
	AC_COMPILE_IFELSE([
#include <X11/Xlib.h>
#include <X11/extensions/xf86dga.h>
XDGAMode *ptr;
	    ], [AC_MSG_RESULT(yes)], [AC_MSG_RESULT(no)
	    build_x_xf86dga_target="no"])
    fi
    CFLAGS="$cflags_old"
    CPPFLAGS="$cppflags_old"

    AC_CHECK_LIB(Xxf86vm_pic, XF86VidModeSwitchToMode,
	x_helper_xf86vm_libs="-lXxf86vm_pic",
	AC_CHECK_LIB(Xxf86vm, XF86VidModeSwitchToMode,
		x_helper_xf86vm_libs="-lXxf86vm",
		build_x_xf86vmode_target=no,
		[ $X_LIBS -lXext -lX11 $X_EXTRA_LIBS ]),
	[ $X_LIBS -lXext -lX11 $X_EXTRA_LIBS ])
  fi
fi



if test "x$build_aa_target" != "xno"; then
  AC_CHECK_HEADER(aalib.h,
	GGI_CHECK_LIB(aa, aa_autoinit, foo=bar, build_aa_target="no"),
	build_aa_target="no")
fi

if test "x$ac_cv_func_mmap_fixed_mapped" != "xyes"; then 
  build_fbdev_target="no"
  build_file_target="no"
  build_kgi_target="no"
fi

if test "x$build_fbdev_target" != "xno"; then
  AC_CHECK_HEADER(linux/fb.h,
    AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
#include <linux/fb.h>
]], [[
struct fb_fix_screeninfo *fix;
fix->accel = 0;
]])],[AC_DEFINE(HAVE_NEW_FBDEV, 1,
		Define if struct fb_fix_screeninfo has an 'accel' member.)
      have_new_fbdev=yes],[]),
    build_fbdev_target="no")
fi

if test "x$build_directfb_renderer" != "xno"; then
  AC_CHECK_HEADER(directfb.h,
	AC_DEFINE([HAVE_DIRECTFB_H], [1],
		[Define if you have <directfb.h> header file]),
	build_directfb_renderer="no")

  AC_CHECK_HEADER(directfb-internal/directfb_version.h,
	foo=bar, build_directfb_renderer="no")
fi

if test "x$build_libkgi_driver" != "xno"; then
  AC_CHECK_LIB(ggigalloc, ggiGAInit, foo=bar, build_libkgi_target="no")
fi

if test "x$build_kgi_target" != "xno"; then
   AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
#include "kgi/config.h"
#include <kgi/system.h>
#include <kgi/kgi.h>
   ]], [[
kgi_u32_t i;
   ]])],[build_kgi_target="yes"],[build_kgi_target="no"
   ])
fi

if test "x$build_quartz_target" != "xno"; then
  AC_CHECK_HEADER(ApplicationServices/ApplicationServices.h,
    AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
#include <ApplicationServices/ApplicationServices.h>
]], [[
CGDirectDisplayID id;
]])],[foo=bar],[]), build_quartz_target="no")
fi

if test "x$build_glide_target" != "xno"; then
  if test "x$ac_cv_header_glide_h" = "xno" -a \
	  "x$ac_cv_header_glide_glide_h" = "xno"; then
    build_glide_target="no"
  else 
    AC_CHECK_LIB(glide2x, grGlideInit, foo=bar,
	build_glide_target="no", [ -lm ])
  fi
fi

if test "x$build_ipc_target" != "xno"; then
  AC_CHECK_HEADERS(sys/types.h sys/socket.h sys/un.h sys/shm.h,
	build_ipc_target="yes", build_ipc_target="no")
fi

case "$host" in
  powerpc-*-linux*)
	;;
  *)
	build_lcd823_target="no"
	;;
esac


if test "x$build_vgl_target" != "xno"; then
    if test "x$ac_cv_header_vgl.h" = "xno"; then
	build_vgl_target="no"
    else
	AC_CHECK_LIB(vgl, VGLInit, foo=bar,
		     build_vgl_target="no")
    fi
fi

if test "x$build_svga_target" != "xno"; then
  AC_CHECK_HEADER(vga.h,
	AC_CHECK_LIB(vga, vga_init, foo=bar,
		build_svga_target="no"; build_vgagl_helper="no"),
	build_svga_target="no"; build_vgagl_helper="no")
  AC_CHECK_HEADER(vgagl.h,
	AC_CHECK_LIB(vgagl, gl_setpixel, foo=bar,
		build_vgagl_helper="no",
		[ -lvga ]),
	build_vgagl_helper="no")
else
	build_vgagl_helper="no"
fi

if test "x$build_terminfo_target" != "xno"; then
  curseslib=""
  AC_CHECK_HEADER(ncurses.h,
	[AC_DEFINE([HAVE_NCURSES_H], [1],
		[Define if you have the <ncurses.h> header file])
	curseslib="ncurses"],[
  AC_CHECK_HEADER(ncurses/ncurses.h,
	[AC_DEFINE([HAVE_NCURSES_NCURSES_H], [1],
		[Define if you have the <ncurses/ncurses.h> header file.])
	curseslib="ncurses"],[
  AC_CHECK_HEADER(curses.h,
	[AC_DEFINE([HAVE_CURSES_H], [1],
		[Define if you have the <curses.h> header file.])
	curseslib="curses"],[
	build_terminfo_target="no"])])])
  if test -n "$curseslib"; then
    AC_CHECK_LIB($curseslib, set_term,
	terminfolibs="-l$curseslib",
	build_terminfo_target=no)
  fi
  AC_CHECK_LIB($curseslib, mvwaddchnstr,
	foo=bar, build_terminfo_target=no)
fi

if test "x$build_vcsa_target" != "xno"; then
  if test "$ac_cv_header_linux_vt_h" != yes; then
    build_vcsa_target="no"
  fi
fi

if test "x$build_linvtsw_helper" != "xno"; then
  if test "$ac_cv_header_linux_vt_h" != yes -o \
	"$ac_cv_header_linux_kd_h" != yes ; then
    build_linvtsw_helper="no"
  fi
fi

dnl check for Unix domain sockets.
dnl Define HAVE_UNIX_DOMAIN_SOCKET if found.
AC_MSG_CHECKING(whether UNIX domain sockets are supported)
AC_CACHE_VAL(ggi_cv_have_unix_domain_socket,
[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
#include <sys/types.h>
#include <sys/socket.h>
#ifdef HAVE_SYS_UN_H
#include <sys/un.h>
#endif]], [[struct sockaddr_un unix_addr;]])],[ggi_cv_have_unix_domain_socket=yes],[ggi_cv_have_unix_domain_socket=no])])
AC_MSG_RESULT($ggi_cv_have_unix_domain_socket)
if test $ggi_cv_have_unix_domain_socket = yes ; then
  AC_DEFINE([HAVE_UNIX_DOMAIN_SOCKET], [1],
	[Define if Unix domain sockets are supported.])
fi


dnl ========================================================================
dnl Checks for building demos


AC_CHECK_LIB(kgimon,set_monitor,
  monitest_extrasrc="kgitune.c"
  monitest_extraobj="kgitune.o"
  monitest_extralibs="-lkgimon",
  monitest_extrasrc=""
  monitest_extraobj=""
  monitest_extralibs="")


INSTDEMOS=""

AC_MSG_CHECKING(if we should build the cube3d program)
if test "x$ac_cv_func_putenv" = "xyes" \
	-a \( \( "x$ac_cv_header_unistd_h" = "xyes" \
		 -a "x$ac_cv_header_signal_h" = "xyes" \
	         -a "x$ac_cv_func_fork" = "xyes" \
	         -a "x$ac_cv_func_kill" = "xyes" \
		 -a "x$ac_cv_header_sys_shm_h" = "xyes" \
		 -a "x$ac_cv_header_sys_ipc_h" = "xyes" \) \
	      -o "x$ac_cv_header_windows_h" = "xyes" \) ; then
  INSTDEMOS="$INSTDEMOS cube3d\$(EXEEXT)"
  AC_MSG_RESULT(yes)
else
  AC_MSG_RESULT(no)
fi

OPTDEMOS=""

AC_MSG_CHECKING(if we should build the wrap program)
if test "x$ac_cv_header_signal_h" = "xyes" \
	-a "x$ac_cv_header_sys_shm_h" = "xyes" \
	-a "x$ac_cv_header_sys_ipc_h" = "xyes"; then
  OPTDEMOS="$OPTDEMOS wrap\$(EXEEXT)"
  AC_MSG_RESULT(yes)
else
  AC_MSG_RESULT(no)
fi

OPTCHECKS=""

AC_MSG_CHECKING(if we should build the speed program)
if test "x$ac_cv_header_sys_times_h" = "xyes"; then
  OPTCHECKS="$OPTCHECKS speed\$(EXEEXT)"
  AC_MSG_RESULT(yes)
else
  AC_MSG_RESULT(no)
fi

AC_MSG_CHECKING(if we should build the showaccel2 program)
if test "x$ac_cv_func_fork" = "xyes"; then
  OPTCHECKS="$OPTCHECKS showaccel2\$(EXEEXT)"
  AC_MSG_RESULT(yes)
else
  AC_MSG_RESULT(no)
fi

# noinst_PROGRAMS in programs/util
OPTUTILS=""

AC_MSG_CHECKING(if we should build the tunemode program)
if test "x$ac_cv_header_kgimon_h" = "xyes"; then
  OPTUTILS="$OPTUTILS tunemode\$(EXEEXT)"
  AC_MSG_RESULT(yes)
else
  AC_MSG_RESULT(no)
fi

AC_MSG_CHECKING(if we should build the ggicalibrate program)
if test "x$ac_cv_header_asm_sharp_ts_h" = "xyes"; then
  OPTUTILS="$OPTUTILS ggicalibrate\$(EXEEXT)"
  AC_MSG_RESULT(yes)
else
  AC_MSG_RESULT(no)
fi

AC_MSG_CHECKING(if we should build the ipaq_ggicalibrate program)
if test "x$ac_cv_header_linux_h3600_ts_h" = "xyes"; then
  OPTUTILS="$OPTUTILS ipaq_ggicalibrate\$(EXEEXT)"
  AC_MSG_RESULT(yes)
else
  AC_MSG_RESULT(no)
fi



dnl ========================================================================
dnl Check for targets

AC_MSG_CHECKING(if we should build x        target)
if test "x$build_x_target" = "xno"; then
  build_x_dbe_target="no"
  build_x_evi_target="no"
  build_x_shm_target="no"
  build_x_xf86dga_target="no"
  build_x_xf86vmode_target="no"
  AC_MSG_RESULT(no)
else
  DISPLAYSUBDIRS="$DISPLAYSUBDIRS X"
  TESTSUBDIRS="$TESTSUBDIRS display.x"
  if test "$enable_shared" = "yes"; then
    DISPLAYMODULES="$DISPLAYMODULES X.la"
  fi
  if test "$enable_static" = "yes"; then
    AC_DEFINE(BUILTIN_DISPLAY_X, 1, [Support for builtin display-x])
  fi
  build_x_target="yes"
  AC_MSG_RESULT(yes)

  AC_MSG_CHECKING(if we should build support for DoubleBuffer extension for x target)
  if test "x$build_x_dbe_target" = "xno"; then
	AC_MSG_RESULT(no)
  else
	XSUBDIRS="$XSUBDIRS dbe"
	if test "$enable_shared" = "yes"; then
	  HELPERMODULES="$HELPERMODULES helper_x_dbe.la"
	fi
	if test "$enable_static" = "yes"; then
	  AC_DEFINE(BUILTIN_HELPER_X_DBE, 1, [Support for builtin helper-x-dbe])
	fi
	AC_MSG_RESULT(yes)
  fi

  AC_MSG_CHECKING(if we should build support for Extended Visual Information extension for x target)
  if test "x$build_x_evi_target" = "xno"; then
	AC_MSG_RESULT(no)
  else
	XSUBDIRS="$XSUBDIRS evi"
	if test "$enable_shared" = "yes"; then
	  HELPERMODULES="$HELPERMODULES helper_x_evi.la"
	fi
	if test "$enable_static" = "yes"; then
	  AC_DEFINE(BUILTIN_HELPER_X_EVI, 1, [Support for builtin helper-x-evi])
	fi
	AC_MSG_RESULT(yes)
  fi

  AC_MSG_CHECKING(if we should build support for MIT-SHM extension for x target)
  if test "x$build_x_shm_target" = "xno"; then
	AC_MSG_RESULT(no)
  else
	XSUBDIRS="$XSUBDIRS shm"
	if test "$enable_shared" = "yes"; then
	  HELPERMODULES="$HELPERMODULES helper_x_shm.la"
	fi
	if test "$enable_static" = "yes"; then
	  AC_DEFINE(BUILTIN_HELPER_X_SHM, 1, [Support for builtin helper-x-shm])
	fi
	AC_MSG_RESULT(yes)
  fi

  AC_MSG_CHECKING(if we should build support for xf86dga extension for x target)
  if test "x$build_x_xf86dga_target" = "xno"; then
	AC_MSG_RESULT(no)
  else
	XSUBDIRS="$XSUBDIRS dga"
	if test "$enable_shared" = "yes"; then
	  HELPERMODULES="$HELPERMODULES helper_x_dga.la"
	fi
	if test "$enable_static" = "yes"; then
	  AC_DEFINE(BUILTIN_HELPER_X_DGA, 1, [Support for builtin helper-x-dga])
	fi
	AC_MSG_RESULT(yes)
  fi

  AC_MSG_CHECKING(if we should build support for XF86 Vidmode extension for x target)
  if test "x$build_x_xf86vmode_target" = "xno"; then
	AC_MSG_RESULT(no)
  else
	XSUBDIRS="$XSUBDIRS vidmode"
	if test "$enable_shared" = "yes"; then
	  HELPERMODULES="$HELPERMODULES helper_x_vidmode.la"
	fi
	if test "$enable_static" = "yes"; then
	  AC_DEFINE(BUILTIN_HELPER_X_VIDMODE, 1, [Support for builtin helper-x-vidmode])
	fi
	AC_MSG_RESULT(yes)
  fi
fi
AM_CONDITIONAL(BUILTIN_DISPLAY_X,
		test "$enable_static" = "yes" -a \
			"x$build_x_target" != "xno")
AM_CONDITIONAL(BUILTIN_HELPER_X_DBE,
		test "$enable_static" = "yes" -a \
			"x$build_x_dbe_target" != "xno")
AM_CONDITIONAL(BUILTIN_HELPER_X_EVI,
		test "$enable_static" = "yes" -a \
			"x$build_x_evi_target" != "xno")
AM_CONDITIONAL(BUILTIN_HELPER_X_SHM,
		test "$enable_static" = "yes" -a \
			"x$build_x_shm_target" != "xno")
AM_CONDITIONAL(BUILTIN_HELPER_X_DGA,
		test "$enable_static" = "yes" -a \
			"x$build_x_xf86dga_target" != "xno")
AM_CONDITIONAL(BUILTIN_HELPER_X_VIDMODE,
		test "$enable_static" = "yes" -a \
			"x$build_x_xf86vmode_target" != "xno")


AC_MSG_CHECKING(if we should build libkgi   target)
if test "x$build_libkgi_target" = "xno"; then
  AC_MSG_RESULT(no)
else
  DISPLAYSUBDIRS="$DISPLAYSUBDIRS libkgi"
  if test "$enable_shared" = "yes"; then
    DISPLAYMODULES="$DISPLAYMODULES kgilib.la"
  fi
  if test "$enable_static" = "yes"; then
    AC_DEFINE(BUILTIN_DISPLAY_LIBKGI, 1, [Support for builtin display-libkgi])
  fi
  build_libkgi_target="yes"
  AC_MSG_RESULT(yes)
fi
AM_CONDITIONAL(BUILTIN_DISPLAY_LIBKGI,
		test "$enable_static" = "yes" -a \
			"x$build_libkgi_target" != "xno")



AC_MSG_CHECKING(if we should build kgi/accel      target)
if test "x$build_kgi_target" = "xno"; then
  build_accel="no"
  AC_MSG_RESULT(no)
else
  DISPLAYSUBDIRS="$DISPLAYSUBDIRS kgi"
  if test "$enable_shared" = "yes"; then
    DISPLAYMODULES="$DISPLAYMODULES kgi.la"
  fi
  if test "$enable_static" = "yes"; then
    AC_DEFINE(BUILTIN_DISPLAY_KGI, 1, [Support for builtin display-kgi])
  fi

  if test "x$build_accel" != "xno"; then
    DEFAULTSUBDIRS="$DEFAULTSUBDIRS kgi"
    if test "$enable_shared" = "yes"; then
      DEFAULTKGIMODULES="$DEFAULTKGIMODULES kgi_mach64.la kgi_radeon.la kgi_Gx00.la"
    fi
    if test "$enable_static" = "yes"; then
      AC_DEFINE(BUILTIN_DEFAULT_KGI_ACCEL, 1, [Support for builtin default-kgi-accel])
    fi
    build_accel="yes"
  fi
  build_kgi_target="yes"
  AC_MSG_RESULT(yes)
fi
AM_CONDITIONAL(BUILTIN_DISPLAY_KGI,
		test "$enable_static" = "yes" -a \
			"x$build_kgi_target" != "xno")
AM_CONDITIONAL(BUILTIN_DEFAULT_KGI_ACCEL,
		test "$enable_static" = "yes" -a \
			"x$build_accel" != "xno")


AC_MSG_CHECKING(if we should build aa       target)
if test "x$build_aa_target" = "xno"; then
  AC_MSG_RESULT(no)
else
  DISPLAYSUBDIRS="$DISPLAYSUBDIRS aa"
  TESTSUBDIRS="$TESTSUBDIRS display.aa"
  if test "$enable_shared" = "yes"; then
    DISPLAYMODULES="$DISPLAYMODULES aa.la"
  fi
  if test "$enable_static" = "yes"; then
    AC_DEFINE(BUILTIN_DISPLAY_AA, 1, [Support for builtin display-aa])
  fi
  build_aa_target="yes"
  AC_MSG_RESULT(yes)
fi
AM_CONDITIONAL(BUILTIN_DISPLAY_AA,
		test "$enable_static" = "yes" -a \
			"x$build_aa_target" != "xno")


AC_MSG_CHECKING(if we should build directx  target)
if test "x$build_directx_target" != "xno"; then
  DISPLAYSUBDIRS="$DISPLAYSUBDIRS directx"
  if test "$enable_shared" = "yes"; then
    DISPLAYMODULES="$DISPLAYMODULES directx.la"
  fi
  if test "$enable_static" = "yes"; then
    AC_DEFINE(BUILTIN_DISPLAY_DIRECTX, 1, [Support for builtin display-directx])
  fi
  build_directx_target="yes"
  AC_MSG_RESULT(yes)
else
  AC_MSG_RESULT(no)
fi
AM_CONDITIONAL(BUILTIN_DISPLAY_DIRECTX,
		test "$enable_static" = "yes" -a \
			"x$build_directx_target" != "xno")


AC_MSG_CHECKING(if we should build quartz   target)
if test "x$build_quartz_target" != "xno"; then
  DISPLAYSUBDIRS="$DISPLAYSUBDIRS quartz"
  TESTSUBDIRS="$TESTSUBDIRS display.quartz"
  if test "$enable_shared" = "yes"; then
    DISPLAYMODULES="$DISPLAYMODULES quartz.la"
  fi
  if test "$enable_static" = "yes"; then
    AC_DEFINE(BUILTIN_DISPLAY_QUARTZ, 1, [Support for builtin display-quartz])
  fi
  build_quartz_target="yes"
  AC_MSG_RESULT(yes)
else
  AC_MSG_RESULT(no)
fi
AM_CONDITIONAL(BUILTIN_DISPLAY_QUARTZ,
		test "$enable_static" = "yes" -a \
			"x$build_quartz_target" != "xno")


AC_MSG_CHECKING(if we should build fbdev    target)
if test "x$build_fbdev_target" = "xno"; then
  AC_MSG_RESULT(no)
  if test "x$build_directfb_renderer" != "xno"; then
    AC_MSG_WARN(directfb renderer requires fbdev!)
    AC_MSG_WARN(     disabling directfb renderer)
    AC_MSG_WARN(     enable fbdev or disable directfb to disable warning)
    build_directfb_renderer="no"
  fi
else
  DISPLAYSUBDIRS="$DISPLAYSUBDIRS fbdev"
  if test "x$have_new_fbdev" = "xyes"; then
    DEFAULTSUBDIRS="$DEFAULTSUBDIRS fbdev"
  fi
  if test "$enable_shared" = "yes"; then
    DISPLAYMODULES="$DISPLAYMODULES fbdev.la"
    DEFAULTFBDEVMODULES="$DEFAULTFBDEVMODULES fbdev_m2164w.la fbdev_mach64.la fbdev_mga_g400.la"
  fi
  if test "$enable_static" = "yes"; then
    AC_DEFINE(BUILTIN_DISPLAY_FBDEV, 1, [Support for builtin display-fbdev])
    AC_DEFINE(BUILTIN_DEFAULT_FBDEV_ACCEL, 1, [Support for builtin fbdev-accel])
  fi
  build_fbdev_target="yes"
  AC_MSG_RESULT(yes)

  AC_MSG_CHECKING(if we should build directfb renderer )
  if test "x$build_directfb_renderer" = "xno"; then
    AC_MSG_RESULT(no)
  else
    build_directfb_renderer="yes"
    FBDEVSUBDIRS="$FBDEVSUBDIRS directfb"
    if test "$enable_shared" = "yes"; then
      DEFAULTFBDEVMODULES="$DEFAULTFBDEVMODULES directfb.la directfbglobal.la"
    fi
    if test "$enable_static" = "yes"; then
      AC_DEFINE(BUILTIN_DEFAULT_FBDEV_DIRECTFB, 1, [Support for builtin default-fbdev-directfb])
    fi
    AC_DEFINE_UNQUOTED([DIRECTFB_DRIVER_DIR],"$directfb_driver_dir",
		[Where to look for DirectFB modules])
    AC_MSG_RESULT(yes)
  fi
fi
AM_CONDITIONAL(BUILTIN_DISPLAY_FBDEV,
		test "$enable_static" = "yes" -a \
			"x$build_fbdev_target" != "xno")
AM_CONDITIONAL(BUILTIN_DEFAULT_FBDEV_ACCEL,
		test "$enable_static" = "yes" -a \
			"x$build_fbdev_target" != "xno")
AM_CONDITIONAL(BUILTIN_DEFAULT_FBDEV_DIRECTFB,
		test "$enable_static" = "yes" -a \
			"x$build_directfb_renderer" != "xno")


AC_MSG_CHECKING(if we should build file     target)
if test "x$build_file_target" = "xno"; then
  AC_MSG_RESULT(no)
else
  DISPLAYSUBDIRS="$DISPLAYSUBDIRS file"
  if test "$enable_shared" = "yes"; then
    DISPLAYMODULES="$DISPLAYMODULES file.la"
  fi
  if test "$enable_static" = "yes"; then
    AC_DEFINE(BUILTIN_DISPLAY_FILE, 1, [Support for builtin display-file])
  fi
  build_file_target="yes"
  AC_MSG_RESULT(yes)
fi
AM_CONDITIONAL(BUILTIN_DISPLAY_FILE,
		test "$enable_static" = "yes" -a \
			"x$build_file_target" != "xno")


AC_MSG_CHECKING(if we should build glide    target)
if test "x$build_glide_target" = "xno"; then
  AC_MSG_RESULT(no)
else
  DISPLAYSUBDIRS="$DISPLAYSUBDIRS glide"
  if test "$enable_shared" = "yes"; then
    DISPLAYMODULES="$DISPLAYMODULES glide.la"
  fi
  if test "$enable_static" = "yes"; then
    AC_DEFINE(BUILTIN_DISPLAY_GLIDE, 1, [Support for builtin display-glide])
  fi
  build_glide_target="yes"
  AC_MSG_RESULT(yes)
fi
AM_CONDITIONAL(BUILTIN_DISPLAY_GLIDE,
		test "$enable_static" = "yes" -a \
			"x$build_glide_target" != "xno")


AC_MSG_CHECKING(if we should build ipc      target)
if test "x$build_ipc_target" = "xno"; then
  AC_MSG_RESULT(no)
else
  DISPLAYSUBDIRS="$DISPLAYSUBDIRS ipc"
  if test "$enable_shared" = "yes"; then
    DISPLAYMODULES="$DISPLAYMODULES ipc.la"
  fi
  if test "$enable_static" = "yes"; then
    AC_DEFINE(BUILTIN_DISPLAY_IPC, 1, [Support for builtin display-ipc])
  fi
  build_ipc_target="yes"
  AC_MSG_RESULT(yes)
fi
AM_CONDITIONAL(BUILTIN_DISPLAY_IPC,
		test "$enable_static" = "yes" -a \
			"x$build_ipc_target" != "xno")


dnl AC_MSG_CHECKING(if we should build suidkgi  target)
dnl if test "x$build_suidkgi_target" = "xno"; then
dnl   AC_MSG_RESULT(no)
dnl else
dnl   DISPLAYSUBDIRS="$DISPLAYSUBDIRS suidkgi"
dnl   DEFAULTSUBDIRS="$DEFAULTSUBDIRS linmm_banked ramdac ioctl"
dnl   build_suidkgi_target="yes"
dnl   AC_MSG_RESULT(yes)
dnl fi


AC_MSG_CHECKING(if we should build lcd823   target)
if test "x$build_lcd823_target" = "xno"; then
  AC_MSG_RESULT(no)
else
  DISPLAYSUBDIRS="$DISPLAYSUBDIRS lcd823"
  if test "$enable_shared" = "yes"; then
    DISPLAYMODULES="$DISPLAYMODULES lcd823.la"
  fi
  if test "$enable_static" = "yes"; then
    AC_DEFINE(BUILTIN_DISPLAY_LCD823, 1, [Support for builtin display-lcd823])
  fi
  build_lcd823_target="yes"
  AC_MSG_RESULT(yes)
fi
AM_CONDITIONAL(BUILTIN_DISPLAY_LCD823,
		test "$enable_static" = "yes" -a \
			"x$build_lcd823_target" != "xno")


AC_MSG_CHECKING(if we should build memory   target)
if test "x$build_memory_target" = "xno"; then
  AC_MSG_RESULT(no)
else
  DISPLAYSUBDIRS="$DISPLAYSUBDIRS memory"
  if test "$enable_shared" = "yes"; then
    DISPLAYMODULES="$DISPLAYMODULES memory.la"
  fi
  if test "$enable_static" = "yes"; then
    AC_DEFINE(BUILTIN_DISPLAY_MEMORY, 1, [Support for builtin display-memory])
  fi
  build_memory_target="yes"
  AC_MSG_RESULT(yes)
fi
AM_CONDITIONAL(BUILTIN_DISPLAY_MEMORY,
		test "$enable_static" = "yes" -a \
			"x$build_memory_target" != "xno")


AC_MSG_CHECKING(if we should build monotext target)
if test "x$build_monotext_target" = "xno"; then
  AC_MSG_RESULT(no)
else
  DISPLAYSUBDIRS="$DISPLAYSUBDIRS monotext"
  if test "$enable_shared" = "yes"; then
    DISPLAYMODULES="$DISPLAYMODULES monotext.la"
  fi
  if test "$enable_static" = "yes"; then
    AC_DEFINE(BUILTIN_DISPLAY_MONOTEXT, 1, [Support for builtin display-monotext])
  fi
  build_monotext_target="yes"
  AC_MSG_RESULT(yes)
fi
AM_CONDITIONAL(BUILTIN_DISPLAY_MONOTEXT,
		test "$enable_static" = "yes" -a \
			"x$build_monotext_target" != "xno")


AC_MSG_CHECKING(if we should build multi    target)
if test "x$build_multi_target" = "xno"; then
  AC_MSG_RESULT(no)
else
  DISPLAYSUBDIRS="$DISPLAYSUBDIRS multi"
  if test "$enable_shared" = "yes"; then
    DISPLAYMODULES="$DISPLAYMODULES multi.la"
  fi
  if test "$enable_static" = "yes"; then
    AC_DEFINE(BUILTIN_DISPLAY_MULTI, 1, [Support for builtin display-multi])
  fi
  build_multi_target="yes"
  AC_MSG_RESULT(yes)
fi
AM_CONDITIONAL(BUILTIN_DISPLAY_MULTI,
		test "$enable_static" = "yes" -a \
			"x$build_multi_target" != "xno")


AC_MSG_CHECKING(if we should build palemu   target)
if test "x$build_palemu_target" = "xno"; then
  AC_MSG_RESULT(no)
else
  DISPLAYSUBDIRS="$DISPLAYSUBDIRS palemu"
  TESTSUBDIRS="$TESTSUBDIRS display.palemu"
  if test "$enable_shared" = "yes"; then
    DISPLAYMODULES="$DISPLAYMODULES palemu.la"
  fi
  if test "$enable_static" = "yes"; then
    AC_DEFINE(BUILTIN_DISPLAY_PALEMU, 1, [Support for builtin display-palemu])
  fi
  build_palemu_target="yes"
  AC_MSG_RESULT(yes)
fi
AM_CONDITIONAL(BUILTIN_DISPLAY_PALEMU,
		test "$enable_static" = "yes" -a \
			"x$build_palemu_target" != "xno")


AC_MSG_CHECKING(if we should build sub      target)
if test "x$build_sub_target" = "xno"; then
  AC_MSG_RESULT(no)
else
  DISPLAYSUBDIRS="$DISPLAYSUBDIRS sub"
  if test "$enable_shared" = "yes"; then
    DISPLAYMODULES="$DISPLAYMODULES sub.la"
  fi
  if test "$enable_static" = "yes"; then
    AC_DEFINE(BUILTIN_DISPLAY_SUB, 1, [Support for builtin display-sub])
  fi
  build_sub_target="yes"
  AC_MSG_RESULT(yes)
fi
AM_CONDITIONAL(BUILTIN_DISPLAY_SUB,
		test "$enable_static" = "yes" -a \
			"x$build_sub_target" != "xno")


AC_MSG_CHECKING(if we should build vgl      target)
if test "x$build_vgl_target" = "xno"; then
  AC_MSG_RESULT(no)
else
  DISPLAYSUBDIRS="$DISPLAYSUBDIRS vgl"
  if test "$enable_shared" = "yes"; then
    DISPLAYMODULES="$DISPLAYMODULES vgl.la"
  fi
  if test "$enable_static" = "yes"; then
    AC_DEFINE(BUILTIN_DISPLAY_VGL, 1, [Support for builtin display-vgl])
  fi
  build_vgl_target="yes"
  AC_MSG_RESULT(yes)
fi
AM_CONDITIONAL(BUILTIN_DISPLAY_VGL,
		test "$enable_static" = "yes" -a \
			"x$build_vgl_target" != "xno")


AC_MSG_CHECKING(if we should build svga     target)
if test "x$build_svga_target" = "xno"; then
  AC_MSG_RESULT(no)
else
  DISPLAYSUBDIRS="$DISPLAYSUBDIRS svgalib"
  if test "$enable_shared" = "yes"; then
    DISPLAYMODULES="$DISPLAYMODULES svgalib.la"
  fi
  if test "$enable_static" = "yes"; then
    AC_DEFINE(BUILTIN_DISPLAY_SVGALIB, 1, [Support for builtin display-svgalib])
  fi
  build_svga_target="yes"
  AC_MSG_RESULT(yes)
fi
AM_CONDITIONAL(BUILTIN_DISPLAY_SVGALIB,
		test "$enable_static" = "yes" -a \
			"x$build_svga_target" != "xno")


AC_MSG_CHECKING(if we should build vgagl    helper (used by svga target))
if test "x$build_vgagl_helper" = "xno"; then
  AC_MSG_RESULT(no)
else
  DISPLAYSUBDIRS="$DISPLAYSUBDIRS vgagl"
  if test "$enable_shared" = "yes"; then
    DISPLAYMODULES="$DISPLAYMODULES vgagl.la"
  fi
  if test "$enable_static" = "yes"; then
    AC_DEFINE(BUILTIN_HELPER_VGAGL, 1, [Support for builtin helper-vgagl])
  fi
  build_vgagl_helper="yes"
  AC_MSG_RESULT(yes)
fi
AM_CONDITIONAL(BUILTIN_HELPER_VGAGL,
		test "$enable_static" = "yes" -a \
			"x$build_vgagl_helper" != "xno")


AC_MSG_CHECKING(if we should build tele     target)
if test "x$build_tele_target" = "xno"; then
  AC_MSG_RESULT(no)
else
  DISPLAYSUBDIRS="$DISPLAYSUBDIRS tele"
  if test "$enable_shared" = "yes"; then
    DISPLAYMODULES="$DISPLAYMODULES tele.la"
  fi
  if test "$enable_static" = "yes"; then
    AC_DEFINE(BUILTIN_DISPLAY_TELE, 1, [Support for builtin display-tele])
  fi
  build_tele_target="yes"
  AC_MSG_RESULT(yes)
fi
AM_CONDITIONAL(BUILTIN_DISPLAY_TELE,
		test "$enable_static" = "yes" -a \
			"x$build_tele_target" != "xno")


AC_MSG_CHECKING(if we should build terminfo target)
if test "x$build_terminfo_target" = "xno"; then
  AC_MSG_RESULT(no)
else
  DISPLAYSUBDIRS="$DISPLAYSUBDIRS terminfo"
  if test "$enable_shared" = "yes"; then
    DISPLAYMODULES="$DISPLAYMODULES terminfo.la"
  fi
  if test "$enable_static" = "yes"; then
    AC_DEFINE(BUILTIN_DISPLAY_TERMINFO, 1, [Support for builtin display-terminfo])
  fi
  build_terminfo_target="yes"
  AC_MSG_RESULT(yes)
fi
AM_CONDITIONAL(BUILTIN_DISPLAY_TERMINFO,
		test "$enable_static" = "yes" -a \
			"x$build_terminfo_target" != "xno")


AC_MSG_CHECKING(if we should build tile     target)
if test "x$build_tile_target" = "xno"; then
  AC_MSG_RESULT(no)
else
  DISPLAYSUBDIRS="$DISPLAYSUBDIRS tile"
  TESTSUBDIRS="$TESTSUBDIRS display.tile"
  if test "$enable_shared" = "yes"; then
    DISPLAYMODULES="$DISPLAYMODULES tile.la"
  fi
  if test "$enable_static" = "yes"; then
    AC_DEFINE(BUILTIN_DISPLAY_TILE, 1, [Support for builtin display-tile])
  fi
  build_tile_target="yes"
  AC_MSG_RESULT(yes)
fi
AM_CONDITIONAL(BUILTIN_DISPLAY_TILE,
		test "$enable_static" = "yes" -a \
			"x$build_tile_target" != "xno")


AC_MSG_CHECKING(if we should build trueemu  target)
if test "x$build_trueemu_target" = "xno"; then
  AC_MSG_RESULT(no)
else
  DISPLAYSUBDIRS="$DISPLAYSUBDIRS trueemu"
  TESTSUBDIRS="$TESTSUBDIRS display.trueemu"
  if test "$enable_shared" = "yes"; then
    DISPLAYMODULES="$DISPLAYMODULES trueemu.la"
  fi
  if test "$enable_static" = "yes"; then
    AC_DEFINE(BUILTIN_DISPLAY_TRUEEMU, 1, [Support for builtin display-trueemu])
  fi
  build_trueemu_target="yes"
  AC_MSG_RESULT(yes)
fi
AM_CONDITIONAL(BUILTIN_DISPLAY_TRUEEMU,
		test "$enable_static" = "yes" -a \
			"x$build_trueemu_target" != "xno")


AC_MSG_CHECKING(if we should build vcsa     target)
if test "x$build_vcsa_target" = "xno"; then
  AC_MSG_RESULT(no)
else
  DISPLAYSUBDIRS="$DISPLAYSUBDIRS vcsa"
  if test "$enable_shared" = "yes"; then
    DISPLAYMODULES="$DISPLAYMODULES vcsa.la"
  fi
  if test "$enable_static" = "yes"; then
    AC_DEFINE(BUILTIN_DISPLAY_VCSA, 1, [Support for builtin display-vcsa])
  fi
  build_vcsa_target="yes"
  AC_MSG_RESULT(yes)
fi
AM_CONDITIONAL(BUILTIN_DISPLAY_VCSA,
		test "$enable_static" = "yes" -a \
			"x$build_vcsa_target" != "xno")


AC_MSG_CHECKING(if we should build linvtsw  helper)
if test "x$build_linvtsw_helper" = "xno"; then
  AC_MSG_RESULT(no)
else
  DISPLAYSUBDIRS="$DISPLAYSUBDIRS linvtsw"
  if test "$enable_shared" = "yes"; then
    DISPLAYMODULES="$DISPLAYMODULES linvtsw.la"
  fi
  if test "$enable_static" = "yes"; then
    AC_DEFINE(BUILTIN_HELPER_LINVTSW, 1, [Support for builtin helper-linvtsw])
  fi
  build_linvtsw_helper="yes"
  AC_MSG_RESULT(yes)
fi
AM_CONDITIONAL(BUILTIN_HELPER_LINVTSW,
		test "$enable_static" = "yes" -a \
			"x$build_linvtsw_helper" != "xno")



dnl ========================================================================
dnl Finally add some flags

dnl _THREAD_SAFE is used instead of _REENTRANT on some systems
CFLAGS="$CFLAGS -D_REENTRANT -D_THREAD_SAFE"

if test "x$use_debug" = "xyes"; then
  CFLAGS="$CFLAGS -DDEBUG"
  if test "x$ac_cv_prog_cc_g" = "xyes"; then
    CFLAGS="$CFLAGS -g"
  fi
fi

if test "$ac_cv_c_compiler_gnu" = "yes"; then
    GGI_CC_CHECK4_OPTION([std=gnu99])

    # Common warning flags
    CFLAGS="$CFLAGS -Wall -Wpointer-arith -Wsign-compare"
    CFLAGS="$CFLAGS -Wstrict-prototypes -Wswitch"
    CFLAGS="$CFLAGS -Wmissing-prototypes -Wreturn-type -Wshadow"

    # Advanced warning flags
    CFLAGS="$CFLAGS -Wnested-externs -Wredundant-decls"
    CFLAGS="$CFLAGS -Wuninitialized -Wcast-qual -Wwrite-strings"
    if test "x$cc_has_werror_implicit_function_declaration" = "xyes"; then
      CFLAGS="$CFLAGS -Werror-implicit-function-declaration"
    fi

     # Buggy warning flag
    # CFLAGS="$CFLAGS -Wconversion"

    # Super advanced (only used for building releases)
    # CFLAGS="$CFLAGS -Werror"
fi


dnl the gcc-builtin __PRETTY_FUNCTION__ is a non portable GNU extension
dnl but is used throughout the regression tests.
dnl only a few gcc-compatible compilers support __PRETTY_FUNCTION__
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
#include <stdio.h>
]], [[
int main(void) {
  printf("Hello, %s !\n", __PRETTY_FUNCTION__);
  return 0;
}
]])],[],[CFLAGS="$CFLAGS -D__PRETTY_FUNCTION__=\\\"?\\\""])

# Check for darwin at the very end and set up the Objective C compiler
# We do this here so that we get the full CFLAGS into OBJCFLAGS
case "$host" in
    *-*-darwin*)
        OBJC="cc"
        OBJCFLAGS="$CFLAGS"
        OBJCDEPMODE="$CCDEPMODE"
	OBJCCOMPILE="$CCCOMPILE"
        AC_SUBST(OBJC)
        AC_SUBST(OBJCFLAGS)
	dnl automake 1.6.x doesn't like
	dnl this OBJCDEPMODE, but it is required
	dnl to make compile the quartz target
	dnl with automake 1.7.x
	dnl So it's better to ignore the warning.
        AC_SUBST(OBJCDEPMODE)
	AC_SUBST(OBJCCOMPILE)
        ;;
esac


dnl ========================================================================
dnl Write output

AC_SUBST(sublib_libs)
AC_SUBST(bsdsock_libs)

AC_SUBST(TESTSUBDIRS)
AC_SUBST(DISPLAYSUBDIRS)
AC_SUBST(DEFAULTSUBDIRS)
AC_SUBST(XSUBDIRS)
AC_SUBST(FBDEVSUBDIRS)
AC_SUBST(DISPLAYMODULES)
AC_SUBST(HELPERMODULES)
AC_SUBST(DEFAULTMODULES)
AC_SUBST(DEFAULTFBDEVMODULES)
AC_SUBST(DEFAULTKGIMODULES)

dnl Target specific substitutions
AC_SUBST(terminfolibs)
AC_SUBST(x_helper_xf86vm_libs)
AC_SUBST(x_helper_xf86dga_libs)
AC_SUBST(directfb_driver_dir)

dnl Program specific substitutions
AC_SUBST(INSTDEMOS)
AC_SUBST(OPTDEMOS)
AC_SUBST(OPTCHECKS)
AC_SUBST(OPTUTILS)
AC_SUBST(monitest_extrasrc)
AC_SUBST(monitest_extraobj)
AC_SUBST(monitest_extralibs)

dnl Use static_* to substitute into files where values shouldn't
dnl dynamicly change.  Makefiles need to be able to dynamicly change
dnl paths between build and install and shouldn't use these static_*.
dnl Files that will be installed must always show the final location where
dnl they will reside and should use these static_* values.
dnl Ensure that all static_* are fully expanded.

eval static_libdir="$libdir"
old_val=""
until test "$static_libdir" = "$old_val"; do
	old_val="$static_libdir"
	eval static_libdir="$static_libdir"
done

eval static_sysconfdir="$sysconfdir"
old_val=""
until test "$static_sysconfdir" = "$old_val"; do
	old_val="$static_sysconfdir"
	eval static_sysconfdir="$static_sysconfdir"
done

case "${host}" in
 *-*-mingw*)
	dnl Find a relative path that takes us from static_sysconfdir
	dnl to static_libdir.
	GGI_SYSCONF_TO_LIB
	dnl The relative path from sysconfdir to sysconfdir is simple.
	ggi_sysconfdir="."
	;;
 *)
	dnl Usually good to use an absolute path.
	ggi_sysconfdir_to_libdir="$static_libdir/$ggi_subdir"
	ggi_sysconfdir="$static_sysconfdir/$ggi_subdir"
	;;
esac

AC_SUBST(ggi_subdir)
AC_SUBST(ggi_sysconfdir_to_libdir)
AC_SUBST(ggi_sysconfdir)
AC_SUBST(static_libdir)
AC_SUBST(static_sysconfdir)

# For distcheck we need to eventually pass the location where gii can be
# found. This is done with --with-gii= or --with-uninst-gii= as usual.
AC_SUBST([DISTCHECK_CONFIGURE_FLAGS])

AC_DEFINE_UNQUOTED([GGITAGLEN],$TAGLEN, [The length of the tag])
AC_DEFINE_UNQUOTED([GGIPATHTAG],"$PATHTAG", [Tag to identify path to $ggi_conffile])
AC_DEFINE_UNQUOTED([GGICONFFILE],"$ggi_conffile", [Name of LibGGI master config file])
AC_DEFINE_UNQUOTED([GGICONFDIR],"$PATHTAG$static_sysconfdir/$ggi_subdir",
				[Tag plus path to config dir])

AC_CONFIG_HEADERS([config.h])

AC_CONFIG_FILES([Makefile
ggi/Makefile
include/Makefile
include/ggi/Makefile
include/ggi/internal/Makefile
include/ggi/internal/font/Makefile
include/ggi/default/Makefile
include/ggi/display/Makefile
display/Makefile
display/X/Makefile
display/X/helper/Makefile
display/X/helper/dga/Makefile
display/X/helper/vidmode/Makefile
display/X/helper/evi/Makefile
display/X/helper/dbe/Makefile
display/X/helper/shm/Makefile
display/aa/Makefile
display/auto/Makefile
display/common/Makefile
display/directx/Makefile
display/quartz/Makefile
display/fbdev/Makefile
display/file/Makefile
display/glide/Makefile
display/ipc/Makefile
display/kgi/Makefile
display/lcd823/Makefile
display/libkgi/Makefile
display/linvtsw/Makefile
display/mansync/Makefile
display/memory/Makefile
display/monotext/Makefile
display/multi/Makefile
display/palemu/Makefile
display/sub/Makefile
display/svgalib/Makefile
display/vgl/Makefile
display/tele/Makefile
display/terminfo/Makefile
display/tile/Makefile
display/trueemu/Makefile
display/vcsa/Makefile
display/vgagl/Makefile
default/Makefile
default/color/Makefile
default/common/Makefile
default/kgi/Makefile
default/kgi/ATI/Makefile
default/kgi/ATI/Mach64/Makefile
default/kgi/ATI/Radeon/Makefile
default/kgi/Matrox/Makefile
default/kgi/Matrox/Gx00/Makefile
default/linear_1/Makefile
default/linear_1_r/Makefile
default/linear_2/Makefile
default/linear_4/Makefile
default/linear_4_r/Makefile
default/linear_8/Makefile
default/linear_16/Makefile
default/linear_24/Makefile
default/linear_32/Makefile
default/stubs/Makefile
default/pseudo_stubs/Makefile
default/text_16/Makefile
default/text_32/Makefile
default/ilbm/Makefile
default/planar/Makefile
default/iplanar_2p/Makefile
default/fbdev/Makefile
default/fbdev/directfb/Makefile
default/fbdev/directfb/core/Makefile
default/fbdev/directfb/core/fusion/Makefile
default/fbdev/mga/Makefile
default/fbdev/mga/2164w/Makefile
default/fbdev/mga/g400/Makefile
default/fbdev/ati/Makefile
default/fbdev/ati/mach64/Makefile
display-shared/Makefile
default-shared/Makefile
extensions/Makefile
extensions/test/Makefile
programs/Makefile
programs/check/Makefile
programs/demos/Makefile
programs/demos/warp-ggi/Makefile
programs/regress/Makefile
programs/regress/display.aa/Makefile
programs/regress/display.mansync/Makefile
programs/regress/display.palemu/Makefile
programs/regress/display.quartz/Makefile
programs/regress/display.tile/Makefile
programs/regress/display.trueemu/Makefile
programs/regress/display.x/Makefile
programs/util/Makefile
programs/util/monitest/Makefile
programs/util/ggiteleserver/Makefile
doc/Makefile
doc/man/Makefile
m4/Makefile
libggi.conf
display/fbdev/fbdev.conf
display/kgi/kgi.conf
display/libkgi/libkgi.conf
dist/Makefile
dist/rpm/Makefile
dist/rpm/libggi.spec
])
AC_OUTPUT

dnl Removed dirs
dnl display/suidkgi/Makefile
dnl default/ramdac/Makefile
dnl default/linmm_banked/Makefile
dnl default/ioctl/Makefile