+
+if test "$have_motif" = yes; then
+ AC_CHECK_X_HEADER(Xm/ComboBox.h, [AC_DEFINE(HAVE_XMCOMBOBOX)],,
+ [#include <stdlib.h>
+ #include <stdio.h>
+ #include <X11/Intrinsic.h>])
+fi
+
+
+###############################################################################
+#
+# Check for -lgtk (and Gnome stuff)
+#
+###############################################################################
+
+have_gtk=no
+have_gtk2=no
+with_gtk_req=unspecified
+AC_ARG_WITH(gtk,
+[ --with-gtk Use the Gtk toolkit for the user interface.],
+ [with_gtk="$withval"; with_gtk_req="$withval"],[with_gtk=yes])
+
+# if --with-gtk=/directory/ was specified, remember that directory so that
+# we can also look for the `gtk-config' program in that directory.
+case "$with_gtk" in
+ /*)
+ gtk_dir="$with_gtk"
+ ;;
+ *)
+ gtk_dir=""
+ ;;
+esac
+
+HANDLE_X_PATH_ARG(with_gtk, --with-gtk, Gtk)
+
+if test "$with_gtk" != yes -a "$with_gtk" != no ; then
+ echo "error: must be yes or no: --with-gtk=$with_gtk"
+ exit 1
+fi
+
+have_gnome=no
+with_gnome_req=unspecified
+AC_ARG_WITH(gnome,
+[ --with-gnome Include support for the Gnome 1.x Control Center.
+ (This option is not needed with GTK 2.x / Gnome 2.x.)
+],
+ [with_gnome="$withval"; with_gnome_req="$withval"],[with_gnome=yes])
+
+# if --with-gnome=/directory/ was specified, remember that directory so that
+# we can also look for the `gnome-config' program in that directory.
+case "$with_gnome" in
+ /*)
+ gnome_dir="$with_gnome"
+ ;;
+ *)
+ gnome_dir=""
+ ;;
+esac
+
+HANDLE_X_PATH_ARG(with_gnome, --with-gnome, Gnome)
+
+if test "$with_gnome" != yes -a "$with_gnome" != no ; then
+ echo "error: must be yes or no: --with-gnome=$with_gnome"
+ exit 1
+fi
+
+parse_gtk_version_string() {
+ # M4 sucks!!
+ changequote(X,Y)
+ maj=`echo $ac_gtk_version_string | sed -n 's/\..*//p'`
+ min=`echo $ac_gtk_version_string | sed -n 's/[^.]*\.\([^.]*\).*/\1/p'`
+ changequote([,])
+ ac_gtk_version=`echo "$maj * 1000 + $min" | bc`
+ if test -z "$ac_gtk_version"; then
+ ac_gtk_version=unknown
+ ac_gtk_version_string=unknown
+ fi
+}
+
+
+jurassic_gtk=no
+gtk2_halfassed=no
+
+if test "$with_gtk" = yes; then
+ have_gtk=no
+
+ # if the user specified --with-gtk=/foo/ or --with-gnome=/foo/ then
+ # look in /foo/bin/ for glib-config, gtk-config, and gnome-config.
+ #
+ gtk_path="$PATH"
+
+ if test ! -z "$gtk_dir"; then
+ # canonicalize slashes.
+ foo=`echo "${gtk_dir}/bin" | sed 's@//*@/@g'`
+ gtk_path="$foo:$gtk_path"
+ fi
+
+ if test ! -z "$gnome_dir"; then
+ # canonicalize slashes.
+ foo=`echo "${gnome_dir}/bin" | sed 's@//*@/@g'`
+ gtk_path="$foo:$gtk_path"
+ fi
+
+ AC_PATH_PROGS(pkg_config, pkg-config,, $gtk_path)
+
+ if test -n "$pkg_config" ; then
+ #
+ # the new way...
+ # run pkg-config based tests.
+ #
+
+ pkgs=''
+ pkg_check_version() {
+ if test "$ok" = yes ; then
+ req="$1"
+ min="$2"
+ AC_MSG_CHECKING(for $req)
+ if $pkg_config --exists "$req" ; then
+ vers=`$pkg_config --modversion "$req"`
+ if $pkg_config --exists "$req >= $min" ; then
+ AC_MSG_RESULT($vers)
+ pkgs="$pkgs $req"
+ return 1
+ else
+ AC_MSG_RESULT($vers (wanted >= $min))
+ ok=no
+ return 0
+ fi
+ else
+ AC_MSG_RESULT(no)
+ ok=no
+ return 0
+ fi
+ fi
+ }
+
+ ok="yes"
+ pkg_check_version gtk+-2.0 2.0.1 ; ac_gtk_version_string="$vers"
+ pkg_check_version gmodule-2.0 2.0.0
+ pkg_check_version libxml-2.0 2.4.6
+ pkg_check_version libglade-2.0 1.99.0
+ have_gtk="$ok"
+
+ if test "$have_gtk" = yes; then
+ have_gtk2=yes
+ AC_DEFINE(HAVE_GTK2)
+ else
+ if test -n "$ac_gtk_version_string" ; then
+ gtk2_halfassed="$ac_gtk_version_string"
+ gtk2_halfassed_lib="$req"
+ fi
+ fi
+
+ if test "$have_gtk" = no; then
+ #
+ # we don't have GTK 2. Let's look for GTK 1.
+ #
+ pkgs=''
+ ok="yes"
+ pkg_check_version gtk+ 1.2 ; ac_gtk_version_string="$vers"
+ pkg_check_version glib 1.0
+ have_gtk="$ok"
+
+ # Now check for Gnome...
+ #
+ if test "$have_gtk" = yes -a "$with_gnome" = yes; then
+ old_pkgs="$pkgs"
+ ok=yes
+ pkg_check_version capplet 1.0
+ pkg_check_version gnomeui 1.0
+ pkg_check_version gdk_pixbuf 0.1
+ have_gnome="$ok"
+
+ if test "$have_gnome" = no; then
+ pkgs="$old_pkgs"
+ else
+ AC_DEFINE(HAVE_CRAPPLET)
+ fi
+ fi
+ fi
+
+ if test "$have_gtk" = yes; then
+ parse_gtk_version_string
+ jurassic_gtk=no
+ else
+ have_gnome=no
+ fi
+
+ if test "$have_gtk" = yes; then
+ AC_CACHE_CHECK([for Gtk includes], ac_cv_gtk_config_cflags,
+ [ac_cv_gtk_config_cflags=`$pkg_config --cflags $pkgs`])
+ AC_CACHE_CHECK([for Gtk libs], ac_cv_gtk_config_libs,
+ [ac_cv_gtk_config_libs=`$pkg_config --libs $pkgs`])
+ fi
+ ac_gtk_config_cflags=$ac_cv_gtk_config_cflags
+ ac_gtk_config_libs=$ac_cv_gtk_config_libs
+
+ ac_gnome_config_cflags=$ac_gtk_config_cflags
+ ac_gnome_config_libs=$ac_gtk_config_libs
+
+ else
+ #
+ # the old way...
+ # run {gnome,gtk}-config based tests.
+ #
+
+ AC_PATH_PROGS(glib_config, glib12-config glib-config,, $gtk_path)
+ AC_PATH_PROGS(gtk_config, gtk12-config gtk-config,, $gtk_path)
+
+ if test "$with_gnome" = yes; then
+ AC_PATH_PROGS(gnome_config, gnome-config,, $gtk_path)
+ fi
+
+ if test -n "$glib_config" -a -n "$gtk_config" ; then
+ have_gtk=yes
+ if test "$with_gnome" = yes -a -n "$gnome_config" ; then
+ have_gnome=yes
+ fi
+ fi
+
+ if test "$have_gtk" = yes; then
+ AC_CACHE_CHECK([Gtk version number], ac_cv_gtk_version_string,
+ [ac_cv_gtk_version_string=`$gtk_config --version`])
+ ac_gtk_version_string=$ac_cv_gtk_version_string
+ parse_gtk_version_string
+ fi
+
+ if test "$have_gtk" = yes; then
+ if test "$ac_gtk_version" = "unknown" || test "$ac_gtk_version" -lt 1002
+ then
+ have_gtk=no
+ have_gnome=no
+ jurassic_gtk=yes
+ fi
+ fi
+
+ if test "$have_gtk" = yes; then
+ AC_CACHE_CHECK([for Gtk includes], ac_cv_gtk_config_cflags,
+ [ac_cv_gtk_config_cflags=`$gtk_config --cflags`])
+ AC_CACHE_CHECK([for Gtk libs], ac_cv_gtk_config_libs,
+ [ac_cv_gtk_config_libs=`$gtk_config --libs`])
+ fi
+ ac_gtk_config_cflags=$ac_cv_gtk_config_cflags
+ ac_gtk_config_libs=$ac_cv_gtk_config_libs
+
+ # Check for Gnome Capplet support.
+ # Note that this is only needed with Gnome 1.x, not Gnome 2.x.
+ # In a Gnome 2.x world, libcapplet will not exist.
+ # (In fact, this likely won't even be checked, since in a Gnome 2.x
+ # world, we will probably be up in the "$pkg_config" branch instead
+ # of here in the "$gnome_config" branch.)
+ #
+ if test "$have_gnome" = yes -a "$have_gtk" = yes; then
+ gnome_config_libs="gtk capplet gnomeui gdk_pixbuf"
+ AC_MSG_CHECKING(for Gnome capplet includes)
+ AC_CACHE_VAL(ac_cv_gnome_config_cflags,
+ [if ( $gnome_config --cflags $gnome_config_libs 2>&1 | \
+ grep Unknown >/dev/null ) ; then
+ ac_cv_gnome_config_cflags=''
+ else
+ ac_cv_gnome_config_cflags=`$gnome_config --cflags $gnome_config_libs`
+ fi])
+ ac_gnome_config_cflags=$ac_cv_gnome_config_cflags
+ if test "$ac_gnome_config_cflags" = "" ; then
+ have_gnome=no
+ AC_MSG_RESULT(no)
+ else
+ AC_MSG_RESULT($ac_gnome_config_cflags)
+ fi
+ fi
+
+ if test "$have_gnome" = yes -a "$have_gtk" = yes; then
+ AC_MSG_CHECKING(for Gnome capplet libs)
+ AC_CACHE_VAL(ac_cv_gnome_config_libs,
+ [if ( $gnome_config --libs $gnome_config_libs 2>&1 |
+ grep Unknown >/dev/null ) ; then
+ ac_cv_gnome_config_libs=''
+ else
+ ac_cv_gnome_config_libs=`$gnome_config --libs $gnome_config_libs`
+ fi])
+ ac_gnome_config_libs=$ac_cv_gnome_config_libs
+ if test "$ac_gnome_config_libs" = "" ; then
+ have_gnome=no
+ AC_MSG_RESULT(no)
+ else
+ AC_MSG_RESULT($ac_gnome_config_libs)
+ fi
+ fi
+
+ # If we have Gnome, then override the gtk-config values with
+ # the gnome-config values.
+ #
+ if test "$have_gnome" = yes -a "$have_gtk" = yes; then
+ ac_gtk_config_cflags=$ac_gnome_config_cflags
+ ac_gtk_config_libs=$ac_gnome_config_libs
+ AC_DEFINE(HAVE_CRAPPLET)
+ fi
+
+ fi # end of {gnome,gtk}-config based tests
+
+ if test "$have_gtk" = yes -a "$have_gtk2" = no; then
+ # check for this function that was not in libcapplet 1.2.
+ # (only needed in Gnome/Gtk 1.x, not Gnome/Gtk 2.x)
+ AC_CHECK_X_LIB(capplet, capplet_widget_changes_are_immediate,
+ [AC_DEFINE(HAVE_CRAPPLET_IMMEDIATE)], [true],
+ $ac_gnome_config_libs)
+ fi
+
+
+ GNOME_DATADIR=""
+ if test "$have_gtk" = yes; then
+ if test -n "$pkg_config"; then
+ if test "$have_gtk2" = yes; then
+ GNOME_DATADIR=`$pkg_config --variable=prefix gtk+-2.0`
+ else
+ GNOME_DATADIR=`$pkg_config --variable=prefix gtk+`
+ fi
+ else
+ GNOME_DATADIR=`$gtk_config --prefix`
+ fi
+ GNOME_DATADIR="$GNOME_DATADIR/share"
+ fi
+
+ # .desktop files go in different places in Gnome 1.x and Gnome 2.x...
+ if test "$have_gtk2" = yes; then
+ GNOME_PANELDIR='$(GNOME_PANELDIR2)'
+ else
+ GNOME_PANELDIR='$(GNOME_PANELDIR1)'
+ fi
+
+
+ if test "$have_gtk" = yes; then
+ INCLUDES="$INCLUDES $ac_gtk_config_cflags"
+ GTK_LIBS="$GTK_LIBS $ac_gtk_config_libs"
+ AC_DEFINE(HAVE_GTK)
+
+ if test "$have_gtk2" = yes; then
+ GTK_EXTRA_OBJS=""
+ else
+ GTK_EXTRA_OBJS="\$(GTK_EXTRA_OBJS)"
+ fi
+ fi
+
+fi
+
+
+# Check for the Gnome Help Browser.
+#
+if test "$have_gtk" = yes; then
+ AC_CHECK_PROGS(have_gnome_help, yelp gnome-help-browser, no)
+ if test "$have_gnome_help" != no; then
+ have_gnome_help=yes
+ fi
+fi
+
+
+###############################################################################
+#
+# Check for -lxml
+#
+###############################################################################
+
+have_xml=no
+with_xml_req=unspecified
+xml_halfassed=no
+AC_ARG_WITH(xml,
+[ --with-xml The XML toolkit is needed for some parts of
+ the Gtk interface. Without it, the configuration
+ interface will be much less featureful.],
+[with_xml="$withval"; with_xml_req="$withval"],[with_xml=yes])
+
+# if --with-xml=/directory/ was specified, remember that directory so that
+# we can also look for the `xml-config' program in that directory.
+case "$with_xml" in
+ /*)
+ xml_dir="$with_xml"
+ ;;
+ *)
+ xml_dir=""
+ ;;
+esac
+
+HANDLE_X_PATH_ARG(with_xml, --with-xml, XML)
+
+if test "$with_xml" != yes -a "$with_xml" != no ; then
+ echo "error: must be yes or no: --with-xml=$with_xml"
+ exit 1
+fi
+
+if test "$with_xml" = yes; then
+ have_xml=no
+ have_old_xml=no
+
+ # if the user specified --with-gtk=/foo/ or --with-gnome=/foo/ then
+ # look in /foo/bin/ for for xml-config.
+ #
+ xml_path="$PATH"
+
+ if test ! -z "$gtk_dir"; then
+ # canonicalize slashes.
+ foo=`echo "${gtk_dir}/bin" | sed 's@//*@/@g'`
+ xml_path="$foo:$xml_path"
+ fi
+
+ if test ! -z "$gnome_dir"; then
+ # canonicalize slashes.
+ foo=`echo "${gnome_dir}/bin" | sed 's@//*@/@g'`
+ xml_path="$foo:$xml_path"
+ fi
+
+ if test -n "$pkg_config" ; then
+ #
+ # the new way...
+ # run pkg-config based tests.
+ #
+ pkgs=""
+ ok="yes"
+
+ # If we have Gtk 2.x, then *only* XML 2.x will work.
+ # If we have Gtk 1.x, or don't have Gtk at all, then
+ # either XML 1.x or 2.x will work.
+
+ # First check for XML 2.x.
+ #
+ pkg_check_version libxml-2.0 2.4.6
+
+ # If that didn't work (we don't have XML 2.x) and we *don't* have
+ # Gtk 2.x, then check to see if we have XML 1.x
+ #
+ if test "$ok" = no -a "$have_gtk2" = no; then
+ ok=yes
+ pkg_check_version libxml 1.0
+ fi
+
+ have_xml="$ok"
+
+ if test "$have_xml" = yes; then
+ AC_CACHE_CHECK([for XML includes], ac_cv_xml_config_cflags,
+ [ac_cv_xml_config_cflags=`$pkg_config --cflags $pkgs`])
+ AC_CACHE_CHECK([for XML libs], ac_cv_xml_config_libs,
+ [ac_cv_xml_config_libs=`$pkg_config --libs $pkgs`])
+ ac_xml_config_cflags=$ac_cv_xml_config_cflags
+ ac_xml_config_libs=$ac_cv_xml_config_libs
+ fi
+
+ else
+ #
+ # the old way...
+ # run {xml2,xml}-config based tests.
+ #
+
+ AC_PATH_PROGS(xml_config, xml2-config xml-config,, $xml_path)
+
+ # If we found the xml-config program, run it to get flags.
+ #
+ if test -n "$xml_config" ; then
+ AC_CACHE_CHECK([for XML includes], ac_cv_xml_config_cflags,
+ [ac_cv_xml_config_cflags=`$xml_config --cflags`])
+ AC_CACHE_CHECK([for XML libs], ac_cv_xml_config_libs,
+ [ac_cv_xml_config_libs=`$xml_config --libs`])
+ ac_xml_config_cflags=$ac_cv_xml_config_cflags
+ ac_xml_config_libs=$ac_cv_xml_config_libs
+ fi
+
+ ac_save_xml_CPPFLAGS="$CPPFLAGS"
+ CPPFLAGS="$CPPFLAGS $ac_xml_config_cflags"
+
+ # first try <libxml/parser.h> which is the new way...
+ #
+ AC_CHECK_X_HEADER(libxml/xmlIO.h, [have_xml=yes],,
+ [#include <libxml/parser.h>])
+
+ # if that didn't work, then try just <parser.h> which is the old way...
+ #
+ if test "$have_xml" = no; then
+ AC_CHECK_X_HEADER(xmlIO.h, [have_xml=yes; have_old_xml=yes],,
+ [#include <parser.h>])
+ fi
+
+ CPPFLAGS="$ac_save_xml_CPPFLAGS"
+ fi
+
+
+ have_zlib=no
+ if test "$have_xml" = yes; then
+ # we have the XML headers; now make sure zlib is around.
+ # yes, it's stupid we have to do this too, but there is
+ # dependency screwage in Gnome.
+ AC_CHECK_X_LIB(z, zlibVersion, [have_zlib=yes])
+ if test "$have_zlib" = no; then
+ xml_halfassed=yes
+ have_xml=no
+ fi
+ fi
+
+ if test "$have_xml" = yes; then
+ # we have the header, now check for the library
+ have_xml=no
+ xml_halfassed=yes
+ AC_CHECK_X_LIB(c, xmlParseChunk,
+ [have_xml=yes
+ xml_halfassed=no
+ XML_LIBS="$ac_xml_config_libs"
+ AC_DEFINE(HAVE_XML)],
+ [true],
+ $ac_xml_config_libs)
+ fi
+
+ if test "$have_xml" = yes; then
+ INCLUDES="$INCLUDES $ac_xml_config_cflags"
+ GTK_LIBS="$GTK_LIBS $ac_xml_config_libs"
+ AC_DEFINE(HAVE_XML)
+ if test "$have_old_xml" = yes; then
+ AC_DEFINE(HAVE_OLD_XML_HEADERS)
+ fi
+ fi
+
+fi
+
+
+###############################################################################
+#
+# Checking whether Motif is really Lesstif.
+#
+###############################################################################
+
+have_lesstif=no
+if test "$have_motif" = yes ; then
+ AC_CACHE_CHECK([whether Motif is really LessTif],
+ ac_cv_have_lesstif,
+ [AC_TRY_X_COMPILE([#include <Xm/Xm.h>],
+ [long vers = LesstifVersion;],
+ [ac_cv_have_lesstif=yes],
+ [ac_cv_have_lesstif=no])])
+ have_lesstif=$ac_cv_have_lesstif
+fi
+
+
+lesstif_version=unknown
+lesstif_version_string=unknown
+
+if test "$have_lesstif" = yes ; then
+ ltv=unknown
+ echo unknown > conftest-lt
+ AC_CACHE_CHECK([LessTif version number],
+ ac_cv_lesstif_version_string,
+ [AC_TRY_X_RUN([#include <stdio.h>
+ #include <Xm/Xm.h>
+ int main() {
+ FILE *f = fopen("conftest-lt", "w");
+ if (!f) exit(1);
+ fprintf(f, "%d %d.%d\n", LesstifVersion,
+ LESSTIF_VERSION, LESSTIF_REVISION);
+ fclose(f);
+ exit(0);
+ }],
+ [ltv=`cat conftest-lt`
+ ac_cv_lesstif_version=`echo $ltv | sed 's/ .*//'`
+ ac_cv_lesstif_version_string=`echo $ltv | sed 's/.* //'`],
+ [ac_cv_lesstif_version=unknown
+ ac_cv_lesstif_version_string=unknown],
+ [ac_cv_lesstif_version=unknown
+ ac_cv_lesstif_version_string=unknown])])
+ rm -f conftest-lt
+ lesstif_version=$ac_cv_lesstif_version
+ lesstif_version_string=$ac_cv_lesstif_version_string
+
+fi
+
+
+if test "$have_motif" = yes ; then
+ mtv=unknown
+ echo unknown > conftest-mt
+ AC_CACHE_CHECK([Motif version number],
+ ac_cv_motif_version_string,
+ [AC_TRY_X_RUN([#include <stdio.h>
+ #include <Xm/Xm.h>
+ int main() {
+ FILE *f = fopen("conftest-mt", "w");
+ if (!f) exit(1);
+ fprintf(f, "%d %d.%d\n", XmVersion,
+ XmVERSION, XmREVISION);
+ fclose(f);
+ exit(0);
+ }],
+ [mtv=`cat conftest-mt`
+ ac_cv_motif_version=`echo $mtv | sed 's/ .*//'`
+ ac_cv_motif_version_string=`echo $mtv | sed 's/.* //'`],
+ [ac_cv_motif_version=unknown
+ ac_cv_motif_version_string=unknown],
+ [ac_cv_motif_version=unknown
+ ac_cv_motif_version_string=unknown])])
+ rm -f conftest-mt
+ motif_version=$ac_cv_motif_version
+ motif_version_string=$ac_cv_motif_version_string
+
+fi
+
+
+###############################################################################
+#
+# Checking whether Motif requires -lXpm.
+#
+# If this is Motif 2.x, and we have XPM, then link against XPM as well.
+# The deal is, Motif 2.x requires XPM -- but it's a compilation option
+# of the library whether to build the XPM code into libXm, or whether
+# to rely on an external libXm. So the only way to tell whether XPM is
+# a link-time requirement is to examine libXm.a, which is very
+# difficult to do in an autoconf script. So... if it's Motif 2.x, we
+# always link against XPM if the XPM lib exists (and this will be a
+# no-op if libXm happens to already have the XPM code in it.)
+#
+###############################################################################
+
+motif_requires_xpm=no
+if test "$have_motif" = yes ; then
+ AC_MSG_CHECKING(whether Motif requires XPM)
+ if test "$motif_version" = "unknown" || test "$motif_version" -ge 2000
+ then
+ motif_requires_xpm=yes
+ AC_MSG_RESULT(maybe)
+ else
+ AC_MSG_RESULT(no)
+ fi
+fi
+
+
+###############################################################################
+#
+# Checking whether Motif requires -lXp.
+#
+# Some versions of Motif (2.1.0, at least) require -lXp, the "X Printing
+# Extension". Why this extension isn't in -lXext with all the others,
+# I have no idea.
+#
+###############################################################################
+
+have_xp_ext=no
+if test "$have_motif" = yes ; then
+ have_xp_ext=no
+ AC_CHECK_X_LIB(Xp, XpQueryExtension,
+ [have_xp_ext=yes; MOTIF_LIBS="$MOTIF_LIBS -lXp"],
+ [true], -lX11 -lXext -lm)
+fi
+
+
+###############################################################################
+#
+# Checking whether Motif requires -lXintl (for _Xsetlocale.)
+#
+###############################################################################
+
+have_xintl=no
+if test "$have_motif" = yes ; then
+ AC_CHECK_X_LIB(Xintl, _Xsetlocale, [have_xintl=yes], [have_xintl=no],
+ -lX11 -lXext -lm)
+ if test "$have_xintl" = yes; then
+ MOTIF_LIBS="$MOTIF_LIBS -lXintl"
+ fi
+fi
+
+
+###############################################################################
+#
+# Check for -lGL or -lMesaGL.
+#
+###############################################################################
+
+have_gl=no
+ac_have_mesa_gl=no
+with_gl_req=unspecified
+gl_halfassed=no
+AC_ARG_WITH(gl,[
+Graphics options:
+
+ --with-gl Build those demos which depend on OpenGL.],
+ [with_gl="$withval"; with_gl_req="$withval"],[with_gl=yes])
+
+HANDLE_X_PATH_ARG(with_gl, --with-gl, GL)
+
+ac_mesagl_version=unknown
+ac_mesagl_version_string=unknown
+
+if test "$with_gl" = yes; then
+ AC_CHECK_X_HEADER(GL/gl.h, have_gl=yes, have_gl=no)
+ if test "$have_gl" = yes ; then
+ AC_CHECK_X_HEADER(GL/glx.h, have_gl=yes, have_gl=no,
+ [#include <GL/gl.h>])
+ fi
+
+ # If we have the headers, try and figure out which vendor it's from.
+ #
+ if test "$have_gl" = yes ; then
+
+ # We need to know whether it's MesaGL so that we know which libraries
+ # to link against.
+ #
+ AC_CACHE_CHECK([whether GL is really MesaGL], ac_cv_have_mesa_gl,
+ [ac_cv_have_mesa_gl=no
+ AC_EGREP_X_HEADER(Mesa|MESA, GL/glx.h, [ac_cv_have_mesa_gl=yes])
+ ])
+ ac_have_mesa_gl=$ac_cv_have_mesa_gl
+
+
+ gl_lib_1=""
+ GL_LIBS=""
+
+
+ # Some versions of MesaGL are compiled to require -lpthread.
+ # So if the Mesa headers exist, and -lpthread exists, then always
+ # link -lpthread after the Mesa libs (be they named -lGL or -lMesaGL.)
+ #
+ if test "$ac_have_mesa_gl" = yes; then
+ AC_CHECK_LIB(pthread, pthread_create, [GL_LIBS="-lpthread"], [],)
+ fi
+
+
+ # If we have Mesa headers, check to see if we can link against -lMesaGL.
+ # If we don't have Mesa headers, or we don't have -lMesaGL, try -lGL.
+ # Else, warn that GL is busted. (We have the headers, but no libs.)
+ #
+
+ if test "$ac_have_mesa_gl" = yes ; then
+ AC_CHECK_X_LIB(MesaGL, glXCreateContext,
+ [gl_lib_1="MesaGL"
+ GL_LIBS="-lMesaGL -lMesaGLU $GL_LIBS"],
+ [], -lMesaGLU $GL_LIBS -lX11 -lXext -lm)
+ fi
+
+ if test "$gl_lib_1" = "" ; then
+ AC_CHECK_X_LIB(GL, glXCreateContext,
+ [gl_lib_1="GL"
+ GL_LIBS="-lGL -lGLU $GL_LIBS"],
+ [], -lGLU $GL_LIBS -lX11 -lXext -lm)
+ fi
+
+ if test "$gl_lib_1" = "" ; then
+ # we have headers, but no libs -- bail.
+ have_gl=no
+ ac_have_mesa_gl=no
+ gl_halfassed=yes
+ else
+ # linking works -- we can build the GL hacks.
+ AC_DEFINE(HAVE_GL)
+ if test "$ac_have_mesa_gl" = yes ; then
+ AC_DEFINE(HAVE_MESA_GL)
+ fi
+ fi
+ fi
+
+
+ # Now that we know we have GL headers and libs, do some more GL testing.
+ #
+
+ if test "$have_gl" = yes ; then
+ # If it's MesaGL, we'd like to issue a warning if the version number
+ # is less than or equal to 2.6, because that version had a security bug.
+ #
+ if test "$ac_have_mesa_gl" = yes; then
+
+ AC_CACHE_CHECK([MesaGL version number], ac_cv_mesagl_version_string,
+ [cat > conftest.$ac_ext <<EOF
+#line __oline__ "configure"
+#include "confdefs.h"
+#include <GL/gl.h>
+#ifndef MESA_MAJOR_VERSION
+# include <GL/xmesa.h>
+# ifdef XMESA_MAJOR_VERSION
+ /* Around Mesa 3.2, they took out the Mesa version number, so instead,
+ we have to check the XMesa version number (the number of the X protocol
+ support, which seems to be the same as the Mesa version number.)
+ */
+# define MESA_MAJOR_VERSION XMESA_MAJOR_VERSION
+# define MESA_MINOR_VERSION XMESA_MINOR_VERSION
+# else
+ /* Oh great. Some time after 3.4, they took out the xmesa.h header file,
+ so we have no way of telling what version of Mesa this is at all.
+ So, we'll guess that the osmesa version (the "offscreen protocol")
+ is less than or equal to the real mesa version number. Except that
+ if OSmesa is 3.3, assume at least Mesa 3.4, since OSmesa was 3.3 in
+ Mesa 3.4. And Mesa 3.3 had xmesa.h. What a complete load of shit!
+ */
+# include <GL/osmesa.h>
+# define MESA_MAJOR_VERSION OSMESA_MAJOR_VERSION
+# define MESA_MINOR_VERSION OSMESA_MINOR_VERSION or newer, probably?
+# if OSMESA_MAJOR_VERSION == 3 && OSMESA_MINOR_VERSION == 3
+# undef MESA_MINOR_VERSION
+# define MESA_MINOR_VERSION 4 or newer, probably?
+# endif
+# endif
+#endif
+configure: MESA_MAJOR_VERSION MESA_MINOR_VERSION
+EOF
+
+ ac_save_CPPFLAGS="$CPPFLAGS"
+ if test \! -z "$includedir" ; then
+ CPPFLAGS="$CPPFLAGS -I$includedir"
+ fi
+ CPPFLAGS="$CPPFLAGS $X_CFLAGS"
+
+ mglv=`(eval "$ac_cpp conftest.$ac_ext") 2>&AC_FD_CC | grep configure:`
+
+ # M4 sucks!!
+ changequote(X,Y)
+ mglv=`echo "$mglv" | sed -n \
+ 's/^configure: *\([0-9][0-9]*\) *\([0-9].*\)$/\1.\2/p'`
+ changequote([,])
+
+ rm -f conftest.$ac_ext
+
+ CPPFLAGS="$ac_save_CPPFLAGS"
+
+ if test "$mglv" = ""; then
+ ac_mesagl_version=unknown
+ ac_mesagl_version_string=unknown
+ else
+ ac_mesagl_version_string="$mglv"
+ # M4 sucks!!
+ changequote(X,Y)
+ maj=`echo "$mglv" | sed -n 's/^\([0-9][0-9]*\)\..*$/\1/p'`
+ min=`echo "$mglv" | sed -n 's/^.*\.\([0-9][0-9]*\).*$/\1/p'`
+ changequote([,])
+ ac_mesagl_version=`echo "$maj * 1000 + $min" | bc`
+ if test -z "$ac_mesagl_version"; then
+ ac_mesagl_version=unknown
+ ac_mesagl_version_string=unknown
+ fi
+ fi
+ ac_cv_mesagl_version=$ac_mesagl_version
+ ac_cv_mesagl_version_string=$ac_mesagl_version_string
+ ])
+ ac_mesagl_version=$ac_cv_mesagl_version
+ ac_mesagl_version_string=$ac_cv_mesagl_version_string
+ fi
+
+
+ # Check for OpenGL 1.1 features.
+ #
+ AC_CHECK_X_LIB($gl_lib_1, glBindTexture, [AC_DEFINE(HAVE_GLBINDTEXTURE)],
+ [true], $GL_LIBS -lX11 -lXext -lm)
+ fi
+
+elif test "$with_gl" != no; then
+ echo "error: must be yes or no: --with-gl=$with_gl"
+ exit 1
+fi
+
+
+###############################################################################
+#
+# Check for -lgle.
+#
+###############################################################################
+
+have_gle=no
+with_gle_req=unspecified
+gle_halfassed=no
+AC_ARG_WITH(gle,
+[ --with-gle Build those demos which depend on GLE
+ (the OpenGL "extrusion" library.)],
+ [with_gle="$withval"; with_gle_req="$withval"],[with_gle=yes])
+
+HANDLE_X_PATH_ARG(with_gle, --with-gle, GLE)
+
+GLE_LIBS=""
+
+if test "$have_gl" = no ; then
+ true
+elif test "$with_gle" = yes; then
+
+ AC_CHECK_X_HEADER(GL/gle.h, have_gle3=yes, have_gle3=no,
+ [#include <GL/gl.h>])
+ if test "$have_gle3" = yes ; then
+ have_gle=yes;
+ else
+ AC_CHECK_X_HEADER(GL/gutil.h, have_gle=yes, have_gle=no,
+ [#include <GL/gl.h>])
+ if test "$have_gle" = yes ; then
+ AC_CHECK_X_HEADER(GL/tube.h, have_gle=yes, have_gle=no,
+ [#include <GL/gl.h>])
+ fi
+ fi
+
+ if test "$have_gle" = yes ; then
+ have_gle=no
+ gle_halfassed=yes
+ AC_CHECK_X_LIB(gle, gleCreateGC,
+ [have_gle=yes; gle_halfassed=no; GLE_LIBS="-lgle"],
+ [], $GL_LIBS -lX11 -lXext -lm)
+ fi
+ if test "$have_gle" = yes ; then
+ have_gle=no
+ gle_halfassed=yes
+
+ # sometimes the libmatrix stuff is included in libgle. look there first.
+#
+# I don't get it. For some reason, this test passes on SGI, as if
+# uview_direction_d() was in libgle -- but it's not, it's in libmatrix.
+# Yet the link is succeeding. Why???
+#
+# AC_CHECK_X_LIB(gle, uview_direction_d,
+# [have_gle=yes; gle_halfassed=no],
+# [], $GL_LIBS -lX11 -lXext -lm)
+
+ # As of GLE 3 this is in libgle, and has changed name to uview_direction!
+ # *sigh*
+ if test "$have_gle3" = yes ; then
+ AC_CHECK_X_LIB(gle, uview_direction,
+ [have_gle=yes; gle_halfassed=no],
+ [], $GL_LIBS -lX11 -lXext -lm)
+ fi
+ # if it wasn't in libgle, then look in libmatrix.
+ if test "$have_gle" = no ; then
+ AC_CHECK_X_LIB(matrix, uview_direction_d,
+ [have_gle=yes; gle_halfassed=no;
+ GLE_LIBS="$GLE_LIBS -lmatrix"],
+ [], $GL_LIBS -lX11 -lXext -lm)
+ fi
+ fi
+
+ if test "$have_gle" = yes ; then
+ AC_DEFINE(HAVE_GLE)
+ if test "$have_gle3" = yes ; then
+ AC_DEFINE(HAVE_GLE3)
+ fi
+ fi
+
+elif test "$with_gle" != no; then
+ echo "error: must be yes or no: --with-gle=$with_gle"
+ exit 1
+
+fi
+
+
+
+###############################################################################
+#
+# Check for -lXpm.
+#
+###############################################################################
+
+have_xpm=no
+with_xpm_req=unspecified
+AC_ARG_WITH(xpm,
+[ --with-xpm Include support for XPM files in some demos.
+ (Not needed if Pixbuf is used.)],
+ [with_xpm="$withval"; with_xpm_req="$withval"],[with_xpm=yes])
+
+HANDLE_X_PATH_ARG(with_xpm, --with-xpm, XPM)
+
+if test "$with_xpm" = yes; then
+ AC_CHECK_X_HEADER(X11/xpm.h,
+ [have_xpm=yes
+ AC_DEFINE(HAVE_XPM)
+ XPM_LIBS="-lXpm"],,
+ [#include <X11/Xlib.h>])
+elif test "$with_xpm" != no; then
+ echo "error: must be yes or no: --with-xpm=$with_xpm"
+ exit 1
+fi
+
+# See comment near $motif_requires_xpm, above.
+# Need to do this here, after both Motif and XPM have been checked for.
+#
+if test "$have_motif" = yes -a "$have_xpm" = yes ; then
+ if test "$motif_requires_xpm" = yes ; then
+ MOTIF_LIBS="$MOTIF_LIBS $XPM_LIBS"
+ fi
+fi
+
+###############################################################################
+#
+# Check for -lgdk_pixbuf.
+#
+###############################################################################
+
+have_gdk_pixbuf=no
+with_gdk_pixbuf_req=unspecified
+AC_ARG_WITH(pixbuf,
+[ --with-pixbuf Include support for the GDK-Pixbuf library in some
+ demos, which will make it possible for them to read
+ GIF, JPEG, and PNG files as well. (The path here is
+ ignored if GTK 2.x is being used.)],
+ [with_gdk_pixbuf="$withval"; with_gdk_pixbuf_req="$withval"],
+ [with_gdk_pixbuf=yes])
+
+# if --with-pixbuf=/directory/ was specified, remember that directory so that
+# we can also look for the `gdk-pixbuf-config' program in that directory.
+case "$with_gdk_pixbuf" in
+ /*)
+ gdk_pixbuf_dir="$with_gdk_pixbuf"
+ ;;
+ *)
+ gdk_pixbuf_dir=""
+ ;;
+esac
+
+HANDLE_X_PATH_ARG(with_gdk_pixbuf, --with-pixbuf, GDK_PIXBUF)
+
+if test "$with_gdk_pixbuf" != yes -a "$with_gdk_pixbuf" != no ; then
+ echo "error: must be yes or no: --with-pixbuf=$with_gdk_pixbuf"
+ exit 1
+fi
+
+if test "$with_gdk_pixbuf" = yes; then
+ have_gdk_pixbuf=no
+ have_gdk_pixbuf2=no
+
+ if test -n "$pkg_config" ; then
+ #
+ # the new way...
+ # run pkg-config based tests.
+ #
+ pkgs=''
+ ok="yes"
+
+ # If we have Gtk 2.x, then *only* gdk-pixbuf 2.x will work.
+ # If we have Gtk 1.x, then *only* gdk-pixbuf 1.x will work.
+ # If we don't have Gtk at all, then either will work.
+
+ if test "$have_gtk" = no -o "$have_gtk2" = yes; then
+ #
+ # we don't have Gtk; or we have Gtk 2.x. Check for pixbuf 2.x.
+ #
+ pkg_check_version gdk-pixbuf-2.0 2.0.0
+ pkg_check_version gdk-pixbuf-xlib-2.0 2.0.0
+ have_gdk_pixbuf="$ok"
+ have_gdk_pixbuf2="$ok"
+ fi
+
+ if test "$have_gtk" = no -o "$have_gtk2" = no; then
+ #
+ # we don't have Gtk; or we have Gtk 1.x.
+ # If we don't have pixbuf 2.x, then check for pixbuf 1.x.
+ #
+ if test "$have_gdk_pixbuf2" = no; then
+ pkgs=''
+ ok="yes"
+ pkg_check_version gdk-pixbuf 0.0
+ pkg_check_version gdk-pixbuf-xlib 0.0
+ have_gdk_pixbuf="$ok"
+ fi
+ fi
+
+ if test "$have_gdk_pixbuf" = yes; then
+ AC_CACHE_CHECK([for gdk-pixbuf includes], ac_cv_gdk_pixbuf_config_cflags,
+ [ac_cv_gdk_pixbuf_config_cflags=`$pkg_config --cflags $pkgs`])
+ AC_CACHE_CHECK([for gdk-pixbuf libs], ac_cv_gdk_pixbuf_config_libs,
+ [ac_cv_gdk_pixbuf_config_libs=`$pkg_config --libs $pkgs`])
+ fi
+ ac_gdk_pixbuf_config_cflags=$ac_cv_gdk_pixbuf_config_cflags
+ ac_gdk_pixbuf_config_libs=$ac_cv_gdk_pixbuf_config_libs
+ fi
+
+
+ if test "$have_gdk_pixbuf" = no; then
+ #
+ # the old way...
+ # run gdk-pixbuf-config based tests.
+ # note that we can't assume that the existence of "pkg-config" means
+ # that we don't have to look for gdk-pixbuf-config -- in Gnome 1.4,
+ # pkg-config exists, but doesn't know about pixbuf.
+ #
+
+ # if the user specified --with-gtk=/foo/ or --with-gnome=/foo/ then
+ # look in /foo/bin/ for for gdk-pixbuf-config.
+ #
+ gdk_pixbuf_path="$PATH"
+
+ if test ! -z "$gtk_dir"; then
+ # canonicalize slashes.
+ foo=`echo "${gtk_dir}/bin" | sed 's@//*@/@g'`
+ gdk_pixbuf_path="$foo:$gdk_pixbuf_path"
+ fi
+
+ if test ! -z "$gnome_dir"; then
+ # canonicalize slashes.
+ foo=`echo "${gnome_dir}/bin" | sed 's@//*@/@g'`
+ gdk_pixbuf_path="$foo:$gdk_pixbuf_path"
+ fi
+
+ AC_PATH_PROGS(gdk_pixbuf_config, gdk-pixbuf-config,, $gdk_pixbuf_path)
+
+ # If we found the gdk-pixbuf-config program, run it to get flags.
+ #
+ if test -n "$gdk_pixbuf_config" ; then
+ AC_CACHE_CHECK([for gdk-pixbuf includes], ac_cv_gdk_pixbuf_config_cflags,
+ [ac_cv_gdk_pixbuf_config_cflags=`$gdk_pixbuf_config --cflags`])
+ AC_CACHE_CHECK([for gdk-pixbuf libs], ac_cv_gdk_pixbuf_config_libs,
+ [ac_cv_gdk_pixbuf_config_libs=`$gdk_pixbuf_config --libs`])
+
+ # note that "gdk-pixbuf-config --libs" produces a link line including
+ # -lgdk_pixbuf, but there's no way to get it to produce one that also
+ # includes -lgdk_pixbuf_xlib. Since we don't know *exactly* what the
+ # name of the library will be, construct it with sed...
+ # M4 sucks!!
+ changequote(X,Y)
+ ac_cv_gdk_pixbuf_config_libs=`echo $ac_cv_gdk_pixbuf_config_libs | \
+ sed 's@ \(-lgdk_pixbuf\([-_a-zA-Z0-9.]*\)\) @ \1 -lgdk_pixbuf_xlib\2 @'`
+ changequote([,])
+
+ ac_gdk_pixbuf_config_cflags=$ac_cv_gdk_pixbuf_config_cflags
+ ac_gdk_pixbuf_config_libs=$ac_cv_gdk_pixbuf_config_libs
+ fi
+ fi
+
+ ac_save_gdk_pixbuf_CPPFLAGS="$CPPFLAGS"
+ CPPFLAGS="$CPPFLAGS $ac_gdk_pixbuf_config_cflags"
+
+ if test "$have_gdk_pixbuf" = no; then
+ #
+ # we appear to have pixbuf; check for headers/libs to be sure.
+ #
+
+ have_gdk_pixbuf=no
+
+ # check for header A...
+ AC_CHECK_X_HEADER(gdk-pixbuf/gdk-pixbuf.h, [have_gdk_pixbuf=yes])
+
+ # if that worked, check for header B...
+ if test "$have_gdk_pixbuf" = yes; then
+ have_gdk_pixbuf=no
+ gdk_pixbuf_halfassed=yes
+ AC_CHECK_X_HEADER(gdk-pixbuf/gdk-pixbuf-xlib.h,
+ [have_gdk_pixbuf=yes
+ gdk_pixbuf_halfassed=no])
+
+ # yay, it has a new name in Gtk 2.x...
+ if test "$have_gdk_pixbuf" = no; then
+ have_gdk_pixbuf=no
+ gdk_pixbuf_halfassed=yes
+ AC_CHECK_X_HEADER(gdk-pixbuf-xlib/gdk-pixbuf-xlib.h,
+ [have_gdk_pixbuf=yes
+ gdk_pixbuf_halfassed=no])
+ fi
+ fi
+ fi
+
+ CPPFLAGS="$ac_save_gdk_pixbuf_CPPFLAGS"
+
+ if test "$have_gdk_pixbuf" = yes; then
+ # we have the headers, now check for the libraries
+ have_gdk_pixbuf=no
+ gdk_pixbuf_halfassed=yes
+
+ # library A...
+ AC_CHECK_X_LIB(c, gdk_pixbuf_new_from_file, [have_gdk_pixbuf=yes],,
+ $ac_gdk_pixbuf_config_libs -lX11 -lXext -lm)
+ # library B...
+ if test "$have_gdk_pixbuf" = yes; then
+ have_gdk_pixbuf=no
+ AC_CHECK_X_LIB(c, gdk_pixbuf_xlib_init,
+ [have_gdk_pixbuf=yes
+ gdk_pixbuf_halfassed=no],,
+ $ac_gdk_pixbuf_config_libs -lX11 -lXext -lm)
+ fi
+ fi
+
+ if test "$have_gdk_pixbuf" = yes; then
+ INCLUDES="$INCLUDES $ac_gdk_pixbuf_config_cflags"
+ XPM_LIBS="$ac_gdk_pixbuf_config_libs"
+ AC_DEFINE(HAVE_GDK_PIXBUF)
+ else
+ have_gdk_pixbuf2=no
+ fi
+fi
+
+
+###############################################################################
+#
+# Check for -ljpeg
+#
+###############################################################################
+
+have_jpeg=no
+with_jpeg_req=unspecified
+jpeg_halfassed=no
+AC_ARG_WITH(jpeg,
+[ --with-jpeg Include support for the JPEG library.],
+ [with_jpeg="$withval"; with_jpeg_req="$withval"],
+ [with_jpeg=yes])
+
+HANDLE_X_PATH_ARG(with_jpeg, --with-jpeg, JPEG)
+
+if test "$with_jpeg" != yes -a "$with_jpeg" != no ; then
+ echo "error: must be yes or no: --with-jpeg=$with_jpeg"
+ exit 1
+fi
+
+if test "$with_jpeg" = yes; then
+
+ have_jpeg=no
+ AC_CHECK_X_HEADER(jpeglib.h, [have_jpeg=yes])
+
+ if test "$have_jpeg" = yes; then
+ # we have the header, now check for the library
+ have_jpeg=no
+ jpeg_halfassed=yes
+ AC_CHECK_X_LIB(jpeg, jpeg_start_compress,
+ [have_jpeg=yes
+ jpeg_halfassed=no
+ JPEG_LIBS="-ljpeg"
+ AC_DEFINE(HAVE_JPEGLIB)])
+ fi
+fi
+
+
+###############################################################################
+#
+# Check for the XSHM server extension.
+#
+###############################################################################
+
+have_xshm=no
+with_xshm_req=unspecified
+AC_ARG_WITH(xshm-ext,
+[ --with-xshm-ext Include support for the Shared Memory extension.],
+ [with_xshm="$withval"; with_xshm_req="$withval"],[with_xshm=yes])
+
+HANDLE_X_PATH_ARG(with_xshm, --with-xshm-ext, XSHM)
+
+if test "$with_xshm" = yes; then
+
+ # first check for Xshm.h.
+ AC_CHECK_X_HEADER(X11/extensions/XShm.h, [have_xshm=yes],,
+ [#include <X11/Xlib.h>])
+
+ # if that succeeded, then check for sys/ipc.h.
+ if test "$have_xshm" = yes; then
+ have_xshm=no
+ AC_CHECK_X_HEADER(sys/ipc.h, [have_xshm=yes])
+ fi
+
+ # if that succeeded, then check for sys/shm.h.
+ if test "$have_xshm" = yes; then
+ have_xshm=no
+ AC_CHECK_X_HEADER(sys/shm.h, [have_xshm=yes])
+ fi
+
+ # AIX is pathological, as usual: apparently it's normal for the Xshm headers
+ # to exist, but the library code to not exist. And even better, the library
+ # code is in its own library: libXextSam.a. So, if we're on AIX, and that
+ # lib doesn't exist, give up. (This lib gets added to X_EXTRA_LIBS, and
+ # that's not quite right, but close enough.)
+ #
+ case "$host" in
+ *-aix*)
+ if [ `uname -v` -eq 3 ]; then
+ have_xshm=no
+ AC_CHECK_X_LIB(XextSam, XShmQueryExtension,
+ [have_xshm=yes; X_EXTRA_LIBS="$X_EXTRA_LIBS -lXextSam"],
+ [true], -lX11 -lXext -lm)
+ fi
+ ;;
+ esac
+
+ # if that succeeded, then we've really got it.
+ if test "$have_xshm" = yes; then
+ AC_DEFINE(HAVE_XSHM_EXTENSION)
+ fi
+
+elif test "$with_xshm" != no; then
+ echo "error: must be yes or no: --with-xshm-ext=$with_xshm"
+ exit 1
+fi
+
+
+###############################################################################
+#
+# Check for the DOUBLE-BUFFER server extension.
+#
+###############################################################################
+
+have_xdbe=no
+with_xdbe_req=unspecified
+AC_ARG_WITH(xdbe-ext,
+[ --with-xdbe-ext Include support for the DOUBLE-BUFFER extension.],
+ [with_xdbe="$withval"; with_xdbe_req="$withval"],[with_xdbe=yes])
+
+HANDLE_X_PATH_ARG(with_xdbe, --with-xdbe-ext, DOUBLE-BUFFER)
+
+if test "$with_xdbe" = yes; then
+
+ AC_CHECK_X_HEADER(X11/extensions/Xdbe.h, [have_xdbe=yes],,
+ [#include <X11/Xlib.h>])
+ if test "$have_xdbe" = yes; then
+ AC_DEFINE(HAVE_DOUBLE_BUFFER_EXTENSION)
+ fi
+
+elif test "$with_xdbe" != no; then
+ echo "error: must be yes or no: --with-xdbe-ext=$with_xshm"
+ exit 1
+fi
+
+
+###############################################################################
+#
+# Check for the SGI XReadDisplay server extension.
+#
+# Note: this has to be down here, rather than up with the other server
+# extension tests, so that the output of `configure --help' is in the
+# right order. Arrgh!
+#
+###############################################################################
+
+have_readdisplay=no
+with_readdisplay_req=unspecified
+AC_ARG_WITH(readdisplay,
+[ --with-readdisplay Include support for the XReadDisplay extension.],
+ [with_readdisplay="$withval"; with_readdisplay_req="$withval"],
+ [with_readdisplay=yes])
+
+HANDLE_X_PATH_ARG(with_readdisplay, --with-readdisplay, XReadDisplay)
+
+if test "$with_readdisplay" = yes; then
+ AC_CHECK_X_HEADER(X11/extensions/readdisplay.h,
+ AC_DEFINE(HAVE_READ_DISPLAY_EXTENSION),,
+ [#include <X11/Xlib.h>])
+elif test "$with_readdisplay" != no; then
+ echo "error: must be yes or no: --with-readdisplay=$with_readdisplay"
+ exit 1
+fi
+
+
+###############################################################################
+#
+# Check for a program to generate random text.
+#
+# Zippy is funnier than the idiocy generally spat out by `fortune',
+# so first see if "fortune zippy" works. Else, use plain "fortune".
+#
+# We used to dig around in Emacs to look for the "yow" program, but
+# most people who have Emacs also have "fortune zippy", so nevermind.
+#
+###############################################################################
+
+with_fortune_req=""
+AC_ARG_WITH(fortune,[
+ --with-fortune=PROGRAM Some demos are able to run an external program and
+ display its text; this names the program to use by
+ default (though it can be overridden with X
+ resources.) Default is \"/usr/games/fortune\".],
+ [with_fortune_req="$withval"; with_fortune="$withval"],[with_fortune=yes])
+
+if test "$with_fortune" = no || test "$with_fortune" = yes ; then
+ with_fortune=""
+ with_fortune_req=""
+fi
+
+if test -n "$with_fortune_req" ; then
+ ac_cv_fortune_program=""
+ case "$with_fortune_req" in
+ /*)
+
+ set dummy $with_fortune_req ; fortune_tmp=$2
+ AC_MSG_CHECKING([for $fortune_tmp])
+ if test -x "$fortune_tmp" ; then
+ AC_MSG_RESULT(yes)
+ else
+ AC_MSG_RESULT(no)
+ with_fortune=""
+ fi
+ ;;
+ *)
+ set dummy $with_fortune_req ; fortune_tmp=$2
+ # don't cache
+ unset ac_cv_path_fortune_tmp
+ AC_PATH_PROG(fortune_tmp, $fortune_tmp, [])
+ if test -z "$fortune_tmp" ; then
+ with_fortune=""
+ fi
+ ;;
+ esac
+ ac_cv_fortune_program="$with_fortune"
+
+elif test -n "$ac_cv_fortune_program"; then
+ AC_MSG_RESULT([checking for fortune... (cached) $ac_cv_fortune_program])
+fi
+
+unset ac_cv_path_fortune_tmp
+unset fortune_tmp
+
+if test -z "$ac_cv_fortune_program" ; then
+
+ # first look for fortune in /usr/games/ (and use absolute path)
+ AC_PATH_PROGS(fortune_tmp, fortune,, "/usr/games")
+
+ # if it's not there, look on $PATH (and don't use absolute path)
+ if test -z "$fortune_tmp" ; then
+ AC_CHECK_PROGS(fortune_tmp, fortune)
+ fi
+
+ # if we didn't find anything, then just assume /usr/games/
+ if test -z "$fortune_tmp" ; then
+ fortune_tmp="/usr/games/fortune"
+ fi
+
+ ac_cv_fortune_program="$fortune_tmp"
+
+ # now check to see whether "fortune zippy" works.
+ #
+ fortune_tmp="$fortune_tmp zippy"
+ AC_MSG_CHECKING([for zippy quotes])
+ if ( $fortune_tmp >/dev/null 2>&1 ); then
+ ac_cv_fortune_program="$fortune_tmp"
+ AC_MSG_RESULT($fortune_tmp)
+ else
+ AC_MSG_RESULT(no)
+ fi
+
+fi
+
+unset ac_cv_path_fortune_tmp
+unset fortune_tmp
+
+AC_DEFINE_UNQUOTED(FORTUNE_PROGRAM, "$ac_cv_fortune_program")
+
+
+###############################################################################
+#
+# Check whether it's ok to install some hacks as setuid (e.g., "sonar")
+# This should be safe, but let's give people the option.
+#
+###############################################################################
+
+setuid_hacks_default=no
+setuid_hacks="$setuid_hacks_default"
+AC_ARG_WITH(setuid-hacks,
+[ --with-setuid-hacks Allow some demos to be installed \`setuid root'
+ (which is needed in order to ping other hosts.)
+],
+ [setuid_hacks="$withval"], [setuid_hacks="$setuid_hacks_default"])
+
+HANDLE_X_PATH_ARG(setuid_hacks, --with-setuid-hacks, setuid hacks)
+
+if test "$setuid_hacks" = yes; then
+ true
+elif test "$setuid_hacks" != no; then
+ echo "error: must be yes or no: --with-setuid-hacks=$setuid_hacks"
+ exit 1
+fi
+
+
+###############################################################################
+#
+# Done testing. Now, set up the various -I and -L variables,
+# and decide which GUI program to build by default.
+#
+###############################################################################
+
+DEPEND=makedepend
+DEPEND_FLAGS=
+DEPEND_DEFINES=
+
+
+if test \! -z "$includedir" ; then
+ INCLUDES="$INCLUDES -I$includedir"
+fi
+
+if test \! -z "$libdir" ; then
+ LDFLAGS="$LDFLAGS -L$libdir"
+fi
+
+
+PREFERRED_DEMO_PROGRAM=xscreensaver-demo-Xm
+ALL_DEMO_PROGRAMS=
+if test "$have_motif" = yes; then
+ PREFERRED_DEMO_PROGRAM=xscreensaver-demo-Xm
+ ALL_DEMO_PROGRAMS="$PREFERRED_DEMO_PROGRAM $ALL_DEMO_PROGRAMS"
+fi
+if test "$have_gtk" = yes; then
+ PREFERRED_DEMO_PROGRAM=xscreensaver-demo-Gtk
+ ALL_DEMO_PROGRAMS="$PREFERRED_DEMO_PROGRAM $ALL_DEMO_PROGRAMS"
+fi
+
+
+if test "$have_kerberos" = yes; then
+ PASSWD_SRCS="$PASSWD_SRCS \$(KERBEROS_SRCS)"
+ PASSWD_OBJS="$PASSWD_OBJS \$(KERBEROS_OBJS)"
+fi
+if test "$have_pam" = yes; then
+ PASSWD_SRCS="$PASSWD_SRCS \$(PAM_SRCS)"
+ PASSWD_OBJS="$PASSWD_OBJS \$(PAM_OBJS)"
+ INSTALL_PAM="install-pam"
+fi
+ PASSWD_SRCS="$PASSWD_SRCS \$(PWENT_SRCS)"
+ PASSWD_OBJS="$PASSWD_OBJS \$(PWENT_OBJS)"
+
+
+if test "$enable_locking" = yes; then
+ LOCK_SRCS='$(LOCK_SRCS_1) $(PASSWD_SRCS)'
+ LOCK_OBJS='$(LOCK_OBJS_1) $(PASSWD_OBJS)'