http://packetstormsecurity.org/UNIX/admin/xscreensaver-4.03.tar.gz
[xscreensaver] / configure.in
index 342988f7f9cd447006979626f285af9922729cda..ae0e4930b02784d5a353e2d29cb396b1db07aa08 100644 (file)
@@ -1,6 +1,7 @@
 # configure.in --- xscreensaver, Copyright (c) 1997-2000 Jamie Zawinski.
 #
 
+AC_PREREQ(2.53)
 AC_INIT(driver/subprocs.c)
 AC_CONFIG_HEADER(config.h)
 
@@ -23,7 +24,6 @@ for d in driver utils hacks hacks/glx ; do
   fi
 done
 
-
 ###############################################################################
 #
 #       Function to figure out how to run the compiler.
@@ -46,7 +46,7 @@ AC_DEFUN(AC_PROG_CC_ANSI,
       ;;
 
       *-dec-* )
-        AC_MSG_RESULT(DEC: adding -std1)
+        AC_MSG_RESULT(DEC: adding -std1 -ieee)
         CC="$CC -std1"
       ;;
 
@@ -98,7 +98,7 @@ AC_DEFUN(AC_GCC_ACCEPTS_STD,
  [if test -n "$GCC"; then
    AC_CACHE_CHECK([whether gcc accepts -std],
      ac_cv_gcc_accepts_std,
-    [if ( gcc -E -std=c89 - </dev/null 2>&1 >/dev/null | \
+    [if ( gcc -E -std=c89 - </dev/null >/dev/null 2>&1 | \
           grep unrecognized >/dev/null ); then
        ac_cv_gcc_accepts_std=no
      else
@@ -152,12 +152,12 @@ AC_DEFUN(AC_PROG_INSTALL_DIRS,
     [ac_cv_install_d_creates_dirs=no
      rm -rf conftestdir
      if mkdir conftestdir; then
-       cd conftestdir >&-
-       ${INSTALL} -d `pwd`/dir1/dir2 >&- 2>&-
+       cd conftestdir 2>/dev/null
+       ${INSTALL} -d `pwd`/dir1/dir2 >/dev/null 2>&1
        if test -d dir1/dir2/. ; then
          ac_cv_install_d_creates_dirs=yes
        fi
-       cd .. >&-
+       cd .. 2>/dev/null
        rm -rf conftestdir
      fi
     ])
@@ -168,12 +168,12 @@ AC_DEFUN(AC_PROG_INSTALL_DIRS,
       [ac_cv_mkdir_p_creates_dirs=no
        rm -rf conftestdir
        if mkdir conftestdir; then
-         cd conftestdir >&-
-         mkdir -p dir1/dir2 >&- 2>&-
+         cd conftestdir 2>/dev/null
+         mkdir -p dir1/dir2 >/dev/null 2>&1
          if test -d dir1/dir2/. ; then
            ac_cv_mkdir_p_creates_dirs=yes
          fi
-         cd .. >&-
+         cd .. 2>/dev/null
          rm -rf conftestdir
        fi
       ])
@@ -344,7 +344,7 @@ AC_DEFUN(AC_CHECK_ICMPHDR,
                    struct ip ip;
                    i.type = ICMP_ECHO;
                    i.code = 0;
-                   i.cksum = 0;
+                   i.checksum = 0;
                    i.un.echo.id = 0;
                    i.un.echo.sequence = 0;
                    si.sin_family = AF_INET;
@@ -368,17 +368,17 @@ AC_DEFUN(AC_CHECK_ICMPHDR,
 AC_DEFUN(AC_PATH_X_APP_DEFAULTS_XMKMF,[
   rm -fr conftestdir
   if mkdir conftestdir; then
-    cd conftestdir >&-
+    cd conftestdir 2>/dev/null
     # Make sure to not put "make" in the Imakefile rules, since we grep it out.
     cat > Imakefile <<'EOF'
 acfindx:
        @echo 'ac_x_app_defaults="${XAPPLOADDIR}"'
 EOF
-    if (xmkmf) >/dev/null 2>/dev/null && test -f Makefile; then
+    if (xmkmf) >/dev/null 2>&1 && test -f Makefile; then
       # GNU make sometimes prints "make[1]: Entering...", which'd confuse us.
       eval `${MAKE-make} acfindx 2>/dev/null | grep -v make`
     fi
-    cd .. >&-
+    cd .. 2>/dev/null
     rm -fr conftestdir
   fi])
 
@@ -516,15 +516,15 @@ AC_DEFUN(AC_X_RANDOM_PATHS,
       #
       for version in X11R6 X11R5 X11R4 ; do
         # if either pair of directories exists...
-        if test -d /usr/lib/$version || test -d /usr/contrib/$version/lib
+        if test -d /usr/include/$version || test -d /usr/contrib/$version/include
         then
            # if contrib exists, use it...
-           if test -d /usr/contrib/$version/lib ; then
+           if test -d /usr/contrib/$version/include ; then
              X_CFLAGS="$X_CFLAGS -I/usr/contrib/$version/include"
              X_LIBS="$X_LIBS -L/usr/contrib/$version/lib"
            fi
            # if the "standard" one exists, use it.
-           if test -d /usr/lib/$version ; then
+           if test -d /usr/include/$version ; then
              X_CFLAGS="$X_CFLAGS -I/usr/include/$version"
              X_LIBS="$X_LIBS -L/usr/lib/$version"
            fi
@@ -536,21 +536,29 @@ AC_DEFUN(AC_X_RANDOM_PATHS,
       # Now find Motif.  Thanks for not making xmkmf find this by
       # default, you losers.
       #
-      if test -d /usr/lib/Motif1.2 ; then
+      if test -d /usr/include/Motif2.1 ; then
+        X_CFLAGS="$X_CFLAGS -I/usr/include/Motif2.1"
+        X_LIBS="$X_LIBS -L/usr/lib/Motif2.1"
+      elif test -d /usr/include/Motif1.2 ; then
         X_CFLAGS="$X_CFLAGS -I/usr/include/Motif1.2"
         X_LIBS="$X_LIBS -L/usr/lib/Motif1.2"
-      elif test -d /usr/lib/Motif1.1 ; then
+      elif test -d /usr/include/Motif1.1 ; then
         X_CFLAGS="$X_CFLAGS -I/usr/include/Motif1.1"
         X_LIBS="$X_LIBS -L/usr/lib/Motif1.1"
       fi
 
       # Now let's check for the pseudo-standard locations for OpenGL and XPM.
       #
-      if test -d /opt/Mesa/lib ; then
+      if test -d /opt/graphics/OpenGL/include ; then
+        # HP-UX 10.20 puts it here
+        X_CFLAGS="-I/opt/graphics/OpenGL/include $X_CFLAGS"
+        X_LIBS="-L/opt/graphics/OpenGL/lib $X_LIBS"
+      elif test -d /opt/Mesa/lib ; then
         X_CFLAGS="-I/opt/Mesa/include $X_CFLAGS"
         X_LIBS="-L/opt/Mesa/lib $X_LIBS"
       fi
 
+
       if test -d /opt/xpm/lib/X11 ; then
         X_CFLAGS="-I/opt/xpm/include $X_CFLAGS"
         X_LIBS="-L/opt/xpm/lib/X11 $X_LIBS"
@@ -601,7 +609,7 @@ AC_DEFUN(AC_CHECK_X_HEADER, [
     CPPFLAGS="$CPPFLAGS -I$includedir"
   fi
   CPPFLAGS="$CPPFLAGS $X_CFLAGS"
-  AC_CHECK_HEADER([$1], [$2])
+  AC_CHECK_HEADER([$1],[$2],[$3],[$4])
   CPPFLAGS="$ac_save_CPPFLAGS"])
 
 # Like AC_EGREP_HEADER, but it uses the already-computed -I directories.
@@ -738,6 +746,7 @@ AC_NO_CPLUSPLUS_COMMENTS_IN_C_CODE
 AC_PROG_CPP
 AC_C_CONST
 AC_C_INLINE
+AC_EXEEXT
 AC_DEMAND_BC
 
 # stuff for Makefiles
@@ -745,6 +754,13 @@ AC_PROG_INSTALL
 AC_PROG_INSTALL_DIRS
 AC_PROG_MAKE_SET
 
+# By default, autoconf sets INSTALL_SCRIPT to '${INSTALL_PROGRAM}'.
+# That's wrong: it should be set to '${INSTALL}', so that one can
+# implement the "install-strip" target properly (strip executables,
+# but do not try to strip scripts.)
+#
+INSTALL_SCRIPT='${INSTALL}'
+
 # random libc stuff
 AC_HEADER_STDC
 AC_CHECK_HEADERS(unistd.h)
@@ -756,9 +772,9 @@ AC_HEADER_TIME
 AC_HEADER_SYS_WAIT
 AC_HEADER_DIRENT
 AC_GETTIMEOFDAY_ARGS
-AC_CHECK_FUNCS(select fcntl uname nice setpriority getcwd getwd putenv)
+AC_CHECK_FUNCS(select fcntl uname nice setpriority getcwd getwd putenv sbrk)
 
-AC_CHECK_FUNCS(sigaction syslog realpath)
+AC_CHECK_FUNCS(sigaction syslog realpath setrlimit)
 AC_CHECK_ICMP
 AC_CHECK_ICMPHDR
 AC_CHECK_HEADERS(crypt.h sys/select.h)
@@ -780,6 +796,21 @@ AC_X_RANDOM_PATHS
 AC_XPOINTER
 
 
+###############################################################################
+#
+#       Gettext support
+#
+###############################################################################
+
+AC_PROG_INTLTOOL
+GETTEXT_PACKAGE=xscreensaver
+AC_DEFINE_UNQUOTED(GETTEXT_PACKAGE, "$GETTEXT_PACKAGE")
+AC_DEFINE_UNQUOTED(PACKAGE, "$GETTEXT_PACKAGE")
+AC_SUBST(GETTEXT_PACKAGE)
+
+ALL_LINGUAS="ca de et fr it ko pl pt sv da es fi hu ja no pt pt_BR ru wa"
+AM_GLIB_GNU_GETTEXT
+
 
 ###############################################################################
 #
@@ -788,17 +819,18 @@ AC_XPOINTER
 ###############################################################################
 
 have_xmu=no
-AC_CHECK_X_HEADER(X11/Xmu/Error.h, [have_xmu=yes])
+AC_CHECK_X_HEADER(X11/Xmu/Error.h, [have_xmu=yes],,
+                  [#include <stdlib.h>
+                   #include <stdio.h>
+                   #include <X11/Intrinsic.h>])
 if test "$have_xmu" = no ; then
   XMU_SRCS='$(UTILS_SRC)/xmu.c'
   XMU_OBJS='$(UTILS_BIN)/xmu.o'
+  XMU_LIBS=''
 else
   XMU_SRCS=''
   XMU_OBJS=''
-  SAVER_LIBS="-lXmu $SAVER_LIBS"
-  HACK_LIBS="-lXmu $HACK_LIBS"
-  MOTIF_LIBS="-lXmu $MOTIF_LIBS"
-  GTK_LIBS="-lXmu $GTK_LIBS"
+  XMU_LIBS='-lXmu'
   AC_DEFINE(HAVE_XMU)
 fi
 
@@ -848,43 +880,87 @@ fi
 
 ###############################################################################
 #
-#       Handle the --enable-subdir option
+#       Handle the --with-hackdir option
 #
 ###############################################################################
 
-AC_ARG_ENABLE(subdir,[
+have_hackdir=yes
+with_hackdir_req=unspecified
+AC_ARG_WITH(hackdir,[
 Installation options:
 
-  --enable-subdir=DIR     Put the demo programs in a subdirectory of \`bindir',
-                          instead of putting them in bindir itself.  You can
-                          specify the name of the subdirectory.  For example,
-                          \`--exec-prefix=/usr/local --enable-subdir=demos'
-                          would put xscreensaver in /usr/local/bin/, and would
-                          put the demos in /usr/local/bin/demos/.  (If DIR
-                          begins with /, then bindir will not be prepended.)
+  --with-hackdir=DIR      Where to install the hundreds of demo executables.
+                          Default: \`PREFIX/lib/xscreensaver/'],
+  [with_hackdir="$withval"; with_hackdir_req="$withval"],[with_hackdir=yes])
 
-  --disable-subdir        Just put the demos in \`bindir' (this is the default.)
-],
-  [enable_subdir="$enableval"],[enable_subdir=no])
-if test x"$enable_subdir" = xno; then
+if test x"$with_hackdir" = xyes; then
+  HACKDIR='${exec_prefix}/lib/xscreensaver'
+elif test x"$with_hackdir" = xno; then
   HACKDIR='${bindir}'
-elif test x"$enable_subdir" = xyes -o x"$enable_subdir" = x ; then
-  echo "error: must be a subdirectory name: --enable-subdir=$enable_subdir"
-  exit 1
 else
   # there must be a better way than this...
-  if test -z "`echo $enable_subdir | sed 's@^/.*@@'`" ; then
+  if test -z "`echo $with_hackdir | sed 's@^/.*@@'`" ; then
     # absolute path
-    HACKDIR=$enable_subdir
+    HACKDIR=$with_hackdir
   else
     # relative path
-    HACKDIR='${bindir}/'$enable_subdir
+    HACKDIR="\${exec_prefix}$with_hackdir"
   fi
 fi
 
 # canonicalize slashes.
 HACKDIR=`echo "${HACKDIR}" | sed 's@/$@@;s@//*@/@g'`
 
+# This option used to be called --enable-subdir; make sure that is no longer
+# used, since configure brain-damagedly ignores unknown --enable options.
+
+obsolete_enable=
+AC_ARG_ENABLE(subdir,,[obsolete_enable=yes])
+if test -n "$obsolete_enable"; then
+  echo "error: the --enable-subdir option has been replaced with"
+  echo "       the new --with-hackdir option; see \`configure --help'"
+  echo "       for more information."
+  exit 1
+fi
+
+
+###############################################################################
+#
+#       Handle the --with-configdir option
+#
+###############################################################################
+
+have_configdir=yes
+with_configdir_req=unspecified
+AC_ARG_WITH(configdir,
+[  --with-configdir=DIR    Where to install the data files that describe each
+                          of the display modes to the GUI.
+                          Default: \`GNOMEPREFIX/control-center/screensavers/'
+                          or \`PREFIX/lib/xscreensaver/config/', depending on
+                          whether GNOME is available.
+],
+  [with_configdir="$withval"; with_configdir_req="$withval"],
+  [with_configdir=yes])
+
+if test x"$with_configdir" = xyes; then
+  # filled in later...
+  HACK_CONF_DIR=''
+elif test x"$with_configdir" = xno; then
+  echo "error: must be yes, or a pathname: --with-configdir=$with_configdir"
+  exit 1
+else
+  # there must be a better way than this...
+  if test -z "`echo $with_configdir | sed 's@^/.*@@'`" ; then
+    # absolute path
+    HACK_CONF_DIR=$with_configdir
+  else
+    # relative path
+    HACK_CONF_DIR="\${exec_prefix}$with_configdir"
+  fi
+fi
+
+
+
 
 ###############################################################################
 #
@@ -916,7 +992,8 @@ HANDLE_X_PATH_ARG(with_sgi, --with-sgi-ext, SGI SCREEN_SAVER)
 if test "$with_sgi" = yes; then
   AC_CHECK_X_HEADER(X11/extensions/XScreenSaver.h,
                     [have_sgi=yes
-                     AC_DEFINE(HAVE_SGI_SAVER_EXTENSION)])
+                     AC_DEFINE(HAVE_SGI_SAVER_EXTENSION)],,
+                    [#include <X11/Xlib.h>])
 
 elif test "$with_sgi" != no; then
   echo "error: must be yes or no: --with-sgi-ext=$with_sgi"
@@ -939,7 +1016,8 @@ AC_ARG_WITH(mit-ext,
 HANDLE_X_PATH_ARG(with_mit, --with-mit-ext, MIT-SCREEN-SAVER)
 
 if test "$with_mit" = yes; then
-  AC_CHECK_X_HEADER(X11/extensions/scrnsaver.h, [have_mit=yes])
+  AC_CHECK_X_HEADER(X11/extensions/scrnsaver.h, [have_mit=yes],,
+                    [#include <X11/Xlib.h>])
 
   # Now check to see if it's really in the library; XF86Free-3.3 ships
   # scrnsaver.h, but doesn't include the code in libXext.a, the idiots!
@@ -994,7 +1072,8 @@ HANDLE_X_PATH_ARG(with_xidle, --with-xidle-ext, XIDLE)
 if test "$with_xidle" = yes; then
   AC_CHECK_X_HEADER(X11/extensions/xidle.h,
                     [have_xidle=yes
-                     AC_DEFINE(HAVE_XIDLE_EXTENSION)])
+                     AC_DEFINE(HAVE_XIDLE_EXTENSION)],,
+                    [#include <X11/Xlib.h>])
 elif test "$with_xidle" != no; then
   echo "error: must be yes or no: --with-xidle-ext=$with_xidle"
   exit 1
@@ -1018,7 +1097,8 @@ HANDLE_X_PATH_ARG(with_sgivc, --with-sgivc-ext, SGI-VIDEO-CONTROL)
 if test "$with_sgivc" = yes; then
 
   # first check for XSGIvc.h
-  AC_CHECK_X_HEADER(X11/extensions/XSGIvc.h, [have_sgivc=yes])
+  AC_CHECK_X_HEADER(X11/extensions/XSGIvc.h, [have_sgivc=yes],,
+                    [#include <X11/Xlib.h>])
 
   # if that succeeded, then check for the -lXsgivc
   if test "$have_sgivc" = yes; then
@@ -1056,7 +1136,8 @@ HANDLE_X_PATH_ARG(with_dpms, --with-dpms-ext, DPMS)
 if test "$with_dpms" = yes; then
 
   # first check for dpms.h
-  AC_CHECK_X_HEADER(X11/extensions/dpms.h, [have_dpms=yes])
+  AC_CHECK_X_HEADER(X11/extensions/dpms.h, [have_dpms=yes],,
+                    [#include <X11/Xlib.h>])
 
   # if that succeeded, then check for the DPMS code in the libraries
   if test "$have_dpms" = yes; then
@@ -1087,7 +1168,54 @@ fi
 
 ###############################################################################
 #
-#       Check for the XF86VMODE server extension.
+#       Check for the XINERAMA server extension.
+#
+###############################################################################
+
+have_xinerama=no
+with_xinerama_req=unspecified
+AC_ARG_WITH(xinerama-ext,
+[  --with-xinerama-ext     Include support for the XINERAMA extension.],
+  [with_xinerama="$withval"; with_xinerama_req="$withval"],[with_xinerama=yes])
+
+HANDLE_X_PATH_ARG(with_xinerama, --with-xinerama-ext, XINERAMA)
+
+if test "$with_xinerama" = yes; then
+
+  # first check for Xinerama.h
+  AC_CHECK_X_HEADER(X11/extensions/Xinerama.h, [have_xinerama=yes],,
+                    [#include <X11/Xlib.h>])
+
+  # if that succeeded, then check for the XINERAMA code in the libraries
+  if test "$have_xinerama" = yes; then
+
+    # first look in -lXext
+    have_xinerama=no
+    AC_CHECK_X_LIB(Xext, XineramaQueryExtension, [have_xinerama=yes], [true],
+                  -lXext -lX11)
+
+    # if that failed, look in -lXinerama (this is where it is in XFree86 4.1.)
+    if test "$have_xinerama" = no; then
+      AC_CHECK_X_LIB(Xinerama, XineramaQueryExtension,
+                     [have_xinerama=yes; SAVER_LIBS="$SAVER_LIBS -lXinerama"],
+                     [true], -lXext -lX11)
+    fi
+  fi
+
+  # if that succeeded, then we've really got it.
+  if test "$have_xinerama" = yes; then
+    AC_DEFINE(HAVE_XINERAMA)
+  fi
+
+elif test "$with_xinerama" != no; then
+  echo "error: must be yes or no: --with-xinerama-ext=$with_xinerama"
+  exit 1
+fi
+
+
+###############################################################################
+#
+#       Check for the XF86VMODE server extension (for virtual screens.)
 #
 ###############################################################################
 
@@ -1103,7 +1231,8 @@ HANDLE_X_PATH_ARG(with_xf86vmode, --with-xf86vmode-ext, xf86vmode)
 if test "$with_xf86vmode" = yes; then
 
   # first check for xf86vmode.h
-  AC_CHECK_X_HEADER(X11/extensions/xf86vmode.h, [have_xf86vmode=yes])
+  AC_CHECK_X_HEADER(X11/extensions/xf86vmode.h, [have_xf86vmode=yes],,
+                    [#include <X11/Xlib.h>])
 
   # if that succeeded, then check for the -lXxf86vm
   if test "$have_xf86vmode" = yes; then
@@ -1124,6 +1253,68 @@ elif test "$with_xf86vmode" != no; then
 fi
 
 
+###############################################################################
+#
+#       Check for the XF86VMODE server extension (for gamma fading.)
+#
+###############################################################################
+
+have_xf86gamma=no
+have_xf86gamma_ramp=no
+with_xf86gamma_req=unspecified
+AC_ARG_WITH(xf86gamma-ext,
+[  --with-xf86gamma-ext    Include support for XFree86 gamma fading.],
+  [with_xf86gamma="$withval"; with_xf86gamma_req="$withval"],
+  [with_xf86gamma=yes])
+
+HANDLE_X_PATH_ARG(with_xf86gamma, --with-xf86gamma-ext, xf86gamma)
+
+if test "$with_xf86gamma" = yes; then
+
+  # first check for xf86vmode.h, if we haven't already
+  if test "$have_xf86vmode" = yes; then
+    have_xf86gamma=yes
+  else
+    AC_CHECK_X_HEADER(X11/extensions/xf86vmode.h, [have_xf86gamma=yes],,
+                      [#include <X11/Xlib.h>])
+  fi
+
+  # if that succeeded, then check for the -lXxf86vm
+  if test "$have_xf86gamma" = yes; then
+    have_xf86gamma=no
+    AC_CHECK_X_LIB(Xxf86vm, XF86VidModeSetGamma,
+                  [have_xf86gamma=yes],
+                   [true], -lXext -lX11)
+  fi
+
+  # check for the Ramp versions of the functions too.
+  if test "$have_xf86gamma" = yes; then
+    have_xf86gamma_ramp=no
+    AC_CHECK_X_LIB(Xxf86vm, XF86VidModeSetGammaRamp,
+                  [have_xf86gamma_ramp=yes],
+                   [true], -lXext -lX11)
+  fi
+
+  # if those tests succeeded, then we've really got the functions.
+  if test "$have_xf86gamma" = yes; then
+    AC_DEFINE(HAVE_XF86VMODE_GAMMA)
+  fi
+
+  if test "$have_xf86gamma_ramp" = yes; then
+    AC_DEFINE(HAVE_XF86VMODE_GAMMA_RAMP)
+  fi
+
+  # pull in the lib, if we haven't already
+  if test "$have_xf86gamma" = yes -a "$have_xf86vmode" = no; then
+    SAVER_LIBS="$SAVER_LIBS -lXxf86vm"
+  fi
+
+elif test "$with_xf86gamma" != no; then
+  echo "error: must be yes or no: --with-xf86gamma-ext=$with_xf86vmode"
+  exit 1
+fi
+
+
 ###############################################################################
 #
 #       Check for HP XHPDisableReset and XHPEnableReset.
@@ -1348,8 +1539,8 @@ if test "$enable_locking" = yes -a "$with_kerberos" = yes; then
     # (who got it from amu@mit.edu)
     PASSWD_LIBS="$PASSWD_LIBS -lkrb4 -ldes425 -lkrb5 -lk5crypto -lcrypt -lcom_err"
   elif test "$have_kerberos" = yes ; then
-    # from Tim Showalter <tjs+@andrew.cmu.edu>
-    PASSWD_LIBS="$PASSWD_LIBS -lkrb -ldes"
+    # from Tim Showalter <tjs@psaux.com> for FreeBSD 4.2
+    PASSWD_LIBS="$PASSWD_LIBS -lkrb -ldes -lcom_err"
   fi
 
   if test "$have_kerberos" = yes ; then
@@ -1603,12 +1794,18 @@ if test "$with_motif" = yes; then
   AC_CHECK_X_HEADER(Xm/Xm.h,
                     [have_motif=yes
                      AC_DEFINE(HAVE_MOTIF)
-                     MOTIF_LIBS="$MOTIF_LIBS -lXm"])
+                     MOTIF_LIBS="$MOTIF_LIBS -lXm"],,
+                    [#include <stdlib.h>
+                     #include <stdio.h>
+                     #include <X11/Intrinsic.h>])
 fi
 
 
 if test "$have_motif" = yes; then
-  AC_CHECK_X_HEADER(Xm/ComboBox.h, [AC_DEFINE(HAVE_XMCOMBOBOX)])
+  AC_CHECK_X_HEADER(Xm/ComboBox.h, [AC_DEFINE(HAVE_XMCOMBOBOX)],,
+                    [#include <stdlib.h>
+                     #include <stdio.h>
+                     #include <X11/Intrinsic.h>])
 fi
 
 
@@ -1671,21 +1868,21 @@ jurassic_gtk=no
 if test "$with_gtk" = yes; then
   have_gtk=no
   
-  # if the user specified --with-gtk=/foo/ then look in /foo/bin/
-  # for glib-config and gtk-config.
+  # 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 "$gtk_dir"; then
     # canonicalize slashes.
-    gtk_dir=`echo "${gtk_dir}/bin" | sed 's@//*@/@g'`
-    gtk_path="$gtk_dir:$gtk_path"
+    foo=`echo "${gtk_dir}/bin" | sed 's@//*@/@g'`
+    gtk_path="$foo:$gtk_path"
   fi
 
-  if test ! -z "gnome_dir"; then
+  if test ! -z "$gnome_dir"; then
     # canonicalize slashes.
-    gnome_dir=`echo "${gnome_dir}/bin" | sed 's@//*@/@g'`
-    gtk_path="$gnome_dir:$gtk_path"
+    foo=`echo "${gnome_dir}/bin" | sed 's@//*@/@g'`
+    gtk_path="$foo:$gtk_path"
   fi
 
   AC_PATH_PROGS(glib_config,  glib12-config glib-config,,  $gtk_path)
@@ -1695,7 +1892,7 @@ if test "$with_gtk" = yes; then
     AC_PATH_PROGS(gnome_config, gnome-config,, $gtk_path)
   fi
 
-  if test -n "$glib_config" -a  -n "gtk_config" ; then
+  if test -n "$glib_config" -a  -n "$gtk_config" ; then
     have_gtk=yes
     if test "$with_gnome" = yes -a -n "$gnome_config" ; then
       have_gnome=yes
@@ -1736,10 +1933,10 @@ if test "$with_gtk" = yes; then
   # Check for Gnome Capplet support.
   #
   if test "$have_gnome" = yes -a "$have_gtk" = yes; then
-    gnome_config_libs="capplet gnomeui"
+    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 >/dev/null | \
+      [if ( $gnome_config --cflags $gnome_config_libs >/dev/null 2>&1 | \
             grep Unknown >/dev/null ) ; then
          ac_cv_gnome_config_cflags=''
        else
@@ -1757,7 +1954,7 @@ if test "$with_gtk" = yes; then
   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 >/dev/null |
+      [if ( $gnome_config --libs $gnome_config_libs >/dev/null 2>&1 |
             grep Unknown >/dev/null ) ; then
          ac_cv_gnome_config_libs=''
        else
@@ -1785,6 +1982,11 @@ if test "$with_gtk" = yes; then
     ac_gtk_config_cflags=$ac_gnome_config_cflags
     ac_gtk_config_libs=$ac_gnome_config_libs
     AC_DEFINE(HAVE_CRAPPLET)
+
+    # check for this function that was not in libcapplet 1.2.
+    AC_CHECK_X_LIB(capplet, capplet_widget_changes_are_immediate,
+                   [AC_DEFINE(HAVE_CRAPPLET_IMMEDIATE)], [true],
+                   $ac_gnome_config_libs)
   fi
 
 
@@ -1797,6 +1999,135 @@ if test "$with_gtk" = yes; then
 fi
 
 
+# Check for the Gnome Help Browser.
+#
+if test "$have_gnome" = yes; then
+  AC_CHECK_PROG(have_gnome_help, gnome-help-browser, yes, no)
+else
+  have_gnome_help=no
+fi
+
+
+###############################################################################
+#
+#       Check for -lxml
+#
+###############################################################################
+
+have_xml=no
+with_xml_req=unspecified
+xml_halfassed=no
+AC_ARG_WITH(xml,
+[  --with-xml              The XML toolkit is needed for some parts of
+                          the Gtk interface.],
+[with_xml="$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
+
+  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="$ac_save_xml_CPPFLAGS"
+
+  have_zlib=no
+  if test "$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(xml, 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.
@@ -1963,7 +2294,8 @@ 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)
+    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.
@@ -2055,11 +2387,21 @@ EOF
          fi
          CPPFLAGS="$CPPFLAGS $X_CFLAGS"
 
-          # M4 sucks!!
-         changequote(X,Y)
+# With autoconf 2.13 we could do this:
+#
+#        changequote(X,Y)
+#        mglv=`(eval "$ac_cpp conftest.$ac_ext") 2>&AC_FD_CC | sed -n \
+#             's/^configure:.*\([0-9][0-9]*\).*\([0-9][0-9]*\).*$/\1.\2/p'`
+#        changequote([,])
+#
+# but with autoconf 2.52+ (m4 1.4) that causes an error:
+#   m4: ERROR: Recursion limit of 1024 exceeded, use -L<N> to change it
+#
+# So, we need to use the autoconf line-noise macros @<:@ for [ and @:>@ for ]
+#
          mglv=`(eval "$ac_cpp conftest.$ac_ext") 2>&AC_FD_CC | sed -n \
-              's/^configure:.*\([0-9][0-9]*\).*\([0-9][0-9]*\).*$/\1.\2/p'`
-         changequote([,])
+              's/^configure:.*\(@<:@0-9@:>@@<:@0-9@:>@*\).*\(@<:@0-9@:>@@<:@0-9@:>@*\).*$/\1.\2/p'`
+
 
          rm -f conftest.$ac_ext
 
@@ -2118,13 +2460,16 @@ GLE_LIBS=""
 
 if test "$with_gle" = yes; then
 
-  AC_CHECK_X_HEADER(GL/gle.h, have_gle3=yes, have_gle3=no)
+  AC_CHECK_X_HEADER(GL/gle.h, have_gle3=yes, have_gle3=no,
+                    [#include <GL/gl.h>])
   if test "$have_gle3" = yes ; then
     have_gle=yes;
   else
-    AC_CHECK_X_HEADER(GL/gutil.h, have_gle=yes, have_gle=no)
+    AC_CHECK_X_HEADER(GL/gutil.h, have_gle=yes, have_gle=no,
+                    [#include <GL/gl.h>])
     if test "$have_gle" = yes ; then
-      AC_CHECK_X_HEADER(GL/tube.h, have_gle=yes, have_gle=no)
+      AC_CHECK_X_HEADER(GL/tube.h, have_gle=yes, have_gle=no,
+                        [#include <GL/gl.h>])
     fi
   fi
 
@@ -2198,7 +2543,8 @@ if test "$with_xpm" = yes; then
   AC_CHECK_X_HEADER(X11/xpm.h,
                    [have_xpm=yes
                     AC_DEFINE(HAVE_XPM)
-                    XPM_LIBS="-lXpm"])
+                    XPM_LIBS="-lXpm"],,
+                    [#include <X11/Xlib.h>])
 elif test "$with_xpm" != no; then
   echo "error: must be yes or no: --with-xpm=$with_xpm"
   exit 1
@@ -2214,6 +2560,153 @@ if test "$have_motif" = yes -a "$have_xpm" = yes ; then
 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.],
+  [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
+
+  # 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`])
+    ac_gdk_pixbuf_config_cflags=$ac_cv_gdk_pixbuf_config_cflags
+    ac_gdk_pixbuf_config_libs=$ac_cv_gdk_pixbuf_config_libs
+  fi
+
+  ac_save_gdk_pixbuf_CPPFLAGS="$CPPFLAGS"
+  CPPFLAGS="$CPPFLAGS $ac_gdk_pixbuf_config_cflags"
+
+  # check for header 1...
+  AC_CHECK_X_HEADER(gdk-pixbuf/gdk-pixbuf.h, [have_gdk_pixbuf=yes])
+
+  # if that worked, check for header 2...
+  if test "$have_gdk_pixbuf" = yes; then
+    have_gdk_pixbuf=no
+    AC_CHECK_X_HEADER(gdk-pixbuf/gdk-pixbuf-xlib.h, [have_gdk_pixbuf=yes])
+  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 1...
+    AC_CHECK_X_LIB(gdk_pixbuf, gdk_pixbuf_new_from_file,
+                   [have_gdk_pixbuf=yes], [true],
+                   $ac_gdk_pixbuf_config_libs)
+    # library 2...
+    if test "$have_gdk_pixbuf" = yes; then
+      AC_CHECK_X_LIB(gdk_pixbuf_xlib, gdk_pixbuf_xlib_init,
+                     [have_gdk_pixbuf=yes
+                      gdk_pixbuf_halfassed=no],
+                     [true],
+                     $ac_gdk_pixbuf_config_libs)
+    fi
+  fi
+
+  if test "$have_gdk_pixbuf" = yes; then
+    INCLUDES="$INCLUDES $ac_gdk_pixbuf_config_cflags"
+    XPM_LIBS="$ac_gdk_pixbuf_config_libs -lgdk_pixbuf -lgdk_pixbuf_xlib"
+    AC_DEFINE(HAVE_GDK_PIXBUF)
+  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 in some demos,
+                          which will make it possible for them to read JPEG
+                          files as well.],
+  [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 "$have_jpeg" = yes; then
+    # we have the header, now check for the library
+    have_jpeg=no
+    jpeg_halfassed=yes
+    AC_CHECK_X_LIB(jpeg, jpeg_start_compress,
+                   [have_jpeg=yes
+                    jpeg_halfassed=no
+                    JPEG_LIBS="-ljpeg"
+                    AC_DEFINE(HAVE_JPEGLIB)])
+  fi
+fi
+
+
 ###############################################################################
 #
 #       Check for the XSHM server extension.
@@ -2223,7 +2716,7 @@ fi
 have_xshm=no
 with_xshm_req=unspecified
 AC_ARG_WITH(xshm-ext,
-[  --with-xshm-ext         Include support for the XSHM extension.],
+[  --with-xshm-ext         Include support for the Shared Memory extension.],
   [with_xshm="$withval"; with_xshm_req="$withval"],[with_xshm=yes])
 
 HANDLE_X_PATH_ARG(with_xshm, --with-xshm-ext, XSHM)
@@ -2231,7 +2724,8 @@ 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])
+  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
@@ -2289,7 +2783,8 @@ 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])
+  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
@@ -2321,201 +2816,106 @@ HANDLE_X_PATH_ARG(with_readdisplay, --with-readdisplay, XReadDisplay)
 
 if test "$with_readdisplay" = yes; then
   AC_CHECK_X_HEADER(X11/extensions/readdisplay.h,
-                    AC_DEFINE(HAVE_READ_DISPLAY_EXTENSION))
+                    AC_DEFINE(HAVE_READ_DISPLAY_EXTENSION),,
+                    [#include <X11/Xlib.h>])
 elif test "$with_readdisplay" != no; then
   echo "error: must be yes or no: --with-readdisplay=$with_readdisplay"
   exit 1
 fi
 
 
-###############################################################################
-#
-#       Check for the SGI Iris Video Library.
-#
-###############################################################################
-
-have_sgivideo=no
-with_sgivideo_req=unspecified
-AC_ARG_WITH(sgivideo,
-[  --with-sgivideo         Include support for SGI's Iris Video Library.],
-  [with_sgivideo="$withval"; with_sgivideo_req="$withval"],
-  [with_sgivideo=yes])
-
-HANDLE_X_PATH_ARG(with_sgivideo, --with-sgivideo, Iris Video)
-
-if test "$with_sgivideo" = yes; then
-  AC_CHECK_X_HEADER(dmedia/vl.h, have_sgivideo=yes)
-  if test "$have_sgivideo" = yes; then
-    have_sgivideo=no
-    AC_CHECK_LIB(vl, vlOpenVideo, [have_sgivideo=yes])
-    if test "$have_sgivideo" = yes; then
-      SGI_VIDEO_OBJS="$(UTILS_BIN)/sgivideo.o"
-      SGI_VIDEO_LIBS="-lvl"
-      AC_DEFINE(HAVE_SGI_VIDEO)
-    fi
-  fi
-elif test "$with_sgivideo" != no; then
-  echo "error: must be yes or no: --with-sgivideo=$with_sgivideo"
-  exit 1
-fi
-
-
 ###############################################################################
 #
 #       Check for a program to generate random text.
 #
 #       Zippy is funnier than the idiocy generally spat out by `fortune',
-#       so try to find that, by invoking Emacs and asking it where its 
-#       libexec directory is ("yow" lives in there.)
-#
-#       If that doesn't work, see if fortune, zippy, or yow are on $PATH,
-#       and if so, use them.
+#       so first see if "fortune zippy" works.  Else, use plain "fortune".
 #
-#       If that doesn't work, look in /usr/games, and if it's there, use
-#       the full pathname.
+#       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_zippy_req=""
-AC_ARG_WITH(zippy,[
-  --with-zippy=PROGRAM    Some demos are able to run an external program and
+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.)  If you don't specify this, the default
-                          is to use \"yow\" from the Emacs distribution (if you
-                          have it) or else to use \"fortune\".],
-  [with_zippy_req="$withval"; with_zippy="$withval"],[with_zippy=yes])
+                          resources.)  Default is \"/usr/games/fortune\".],
+  [with_fortune_req="$withval"; with_fortune="$withval"],[with_fortune=yes])
 
-if test "$with_zippy" = no || test "$with_zippy" = yes ; then
-  with_zippy=""
-  with_zippy_req=""
+if test "$with_fortune" = no || test "$with_fortune" = yes ; then
+  with_fortune=""
+  with_fortune_req=""
 fi
 
-if test -n "$with_zippy_req" ; then
-  ac_cv_zippy_program=""
-  case "$with_zippy_req" in
+if test -n "$with_fortune_req" ; then
+  ac_cv_fortune_program=""
+  case "$with_fortune_req" in
     /*)
-      AC_MSG_CHECKING([for $with_zippy_req])
-      if test -x "$with_zippy_req" ; then
+
+      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_zippy=""
+        with_fortune=""
       fi
     ;;
     *)
+      set dummy $with_fortune_req ; fortune_tmp=$2
       # don't cache
-      unset ac_cv_path_zip2
-      AC_PATH_PROG(zip2, $with_zippy_req, [])
-      if test "$zip2" = ""; then
-        with_zippy=""
+      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_zippy_program="$with_zippy"
+  ac_cv_fortune_program="$with_fortune"
 
-elif test -n "$ac_cv_zippy_program"; then
-  AC_MSG_RESULT([checking for zippy... (cached) $ac_cv_zippy_program])
+elif test -n "$ac_cv_fortune_program"; then
+  AC_MSG_RESULT([checking for fortune... (cached) $ac_cv_fortune_program])
 fi
 
-if test ! -n "$ac_cv_zippy_program"; then
+unset ac_cv_path_fortune_tmp
+unset fortune_tmp
 
-  AC_CHECK_PROGS(emacs_exe, emacs)
-  AC_CHECK_PROGS(xemacs_exe, xemacs)
+if test -z "$ac_cv_fortune_program" ; then
 
-  ac_cv_zippy_program=""
-  eargs='-batch -q -nw --eval'
+  # first look for fortune in /usr/games/ (and use absolute path)
+  AC_PATH_PROGS(fortune_tmp, fortune,, "/usr/games")
 
-  if test -n "$emacs_exe" ; then
-    AC_MSG_CHECKING([for emacs yow])
-    #
-    # get emacs to tell us where the libexec directory is.
-    #
-    dir=`$emacs_exe $eargs '(princ (concat exec-directory "\n"))' \
-         2>/dev/null | tail -1`
-    dir=`echo "$dir" | sed 's@///*@/@g;s@/$@@'`
-    #
-    # try running libexec/yow and see if it exits without error.
-    #
-    if test x"$dir" != x -a -x "$dir/yow" ; then
-      if $dir/yow >&- 2>&- ; then
-        ac_cv_zippy_program="$dir/yow"
-        AC_MSG_RESULT($ac_cv_zippy_program)
-      else
-        AC_MSG_RESULT(no)
-      fi
-    fi
+  # 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 test -z "$ac_cv_zippy_program" ; then
-    AC_MSG_CHECKING([for xemacs yow])
-    if test -n "$xemacs_exe" ; then
-      #
-      # get xemacs to tell us where the libexec directory is.
-      #
-      dir=`$xemacs_exe $eargs '(princ (concat exec-directory "\n"))' \
-           2>/dev/null | tail -1`
-      dir=`echo "$dir" | sed 's@///*@/@g;s@/$@@'`
-      #
-      # try running libexec/yow and see if it exits without error.
-      #
-      if test x"$dir" != x -a -x "$dir/yow" ; then
-        if $dir/yow >&- 2>&- ; then
-          ac_cv_zippy_program="$dir/yow"
-          AC_MSG_RESULT($ac_cv_zippy_program)
-        else
-          #
-          # in some xemacs installations, the pathname of the yow.lines file
-          # isn't hardcoded into the yow executable, and must be passed on 
-          # the command line.  See if it's in libexec/../etc/.
-
-          # M4 sucks!!
-          changequote(X,Y)
-          dir_up=`echo "$dir" | sed 's@/[^/]*$@@'`
-          changequote([,])
-
-          yowlines="$dir_up/etc/yow.lines"
-          if $dir/yow -f $yowlines >&- 2>&- ; then
-            ac_cv_zippy_program="$dir/yow -f $yowlines"
-            AC_MSG_RESULT($ac_cv_zippy_program)
-          else
-            #
-            # In newer XEmacs releases, yow.lines is in a different place,
-            # and the easiest way to get it is by calling the new function
-            # `locate-data-file'.
-            #
-            yowlines=`$xemacs_exe $eargs \
-              '(princ (concat (locate-data-file "yow.lines") "\n"))' \
-              2>/dev/null | tail -1`
-            if $dir/yow -f $yowlines >&- 2>&- ; then
-              ac_cv_zippy_program="$dir/yow -f $yowlines"
-              AC_MSG_RESULT($ac_cv_zippy_program)
-            else
-              AC_MSG_RESULT(no)
-            fi
-          fi
-        fi
-      fi
-    fi
+  # if we didn't find anything, then just assume /usr/games/
+  if test -z "$fortune_tmp" ; then
+     fortune_tmp="/usr/games/fortune"
   fi
 
-  # if that didn't work, try for some other programs...
-  if test -z "$ac_cv_zippy_program" ; then
-    fortune=''
-    AC_CHECK_PROGS(fortune, [fortune zippy yow])
-    # if that didn't work, try for those programs in /usr/games...
-    if test -z "$fortune" ; then
-      AC_PATH_PROGS(fortune, [fortune zippy yow], fortune,
-                    /usr/games:/usr/local/games:$PATH)
-    fi
+  ac_cv_fortune_program="$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
 
-if test -z "$ac_cv_zippy_program" ; then
-  ac_cv_zippy_program=fortune
 fi
 
-AC_DEFINE_UNQUOTED(ZIPPY_PROGRAM, "$ac_cv_zippy_program")
+unset ac_cv_path_fortune_tmp
+unset fortune_tmp
+
+AC_DEFINE_UNQUOTED(FORTUNE_PROGRAM, "$ac_cv_fortune_program")
 
 
 ###############################################################################
@@ -2597,7 +2997,7 @@ else
   LOCK_OBJS='$(NOLOCK_OBJS_1)'
 fi
 
-INSTALL_SETUID='$(INSTALL) $(SUID_FLAGS)'
+INSTALL_SETUID='$(INSTALL_PROGRAM) $(SUID_FLAGS)'
 
 if test "$need_setuid" = yes; then
   NEED_SETUID=yes
@@ -2614,6 +3014,7 @@ fi
 tab='  '
 if test "$have_gl" = yes; then
   GL_EXES='$(GL_EXES)'
+  GL_UTIL_EXES='$(GL_UTIL_EXES)'
   GL_MEN='$(GL_MEN)'
   GL_KLUDGE="${tab}  "
 else
@@ -2628,6 +3029,52 @@ else
   GLE_KLUDGE="-${tab}   "
 fi
 
+if test "$have_jpeg" = yes -a "$have_gdk_pixbuf" = yes; then
+ JPEG_EXES='$(JPEG_EXES)'
+fi
+
+
+# Another substitution in the XScreenSaver.ad.in file:
+#
+if test "$have_gnome_help" = yes; then
+  GNOMEHELP_Y=''
+  GNOMEHELP_N='!    '
+else
+  GNOMEHELP_Y='!    '
+  GNOMEHELP_N=''
+fi
+
+
+# Now that we know whether we have Gnome, we can decide where the XML
+# config files get installed.
+#
+if test -z "$HACK_CONF_DIR" ; then
+  if test -n "$GNOME_DATADIR" ; then
+    HACK_CONF_DIR='${GNOME_DATADIR}/control-center/screensavers'
+  else
+    HACK_CONF_DIR='${prefix}/lib/xscreensaver/config'
+  fi
+fi
+
+
+
+# After computing $HACK_CONF_DIR, make sure $GTK_ICONDIR has a value
+# so that we know where to install the Gtk pixmaps.
+#
+if test -n "$GNOME_DATADIR" ; then
+  GTK_ICONDIR='$(GNOME_DATADIR)/pixmaps'
+elif test "$have_gtk" = yes; then
+  # should this be "$(prefix)/share/pixmaps"? But /usr/X11R6/share/ is wrong...
+  GTK_ICONDIR='/usr/share/pixmaps'
+else
+  GTK_ICONDIR=''
+fi
+
+
+# canonicalize slashes.
+HACK_CONF_DIR=`echo "${HACK_CONF_DIR}" | sed 's@/$@@;s@//*@/@g'`
+
+
 
 ###############################################################################
 #
@@ -2642,6 +3089,8 @@ AC_SUBST(ALL_DEMO_PROGRAMS)
 AC_SUBST(SAVER_LIBS)
 AC_SUBST(MOTIF_LIBS)
 AC_SUBST(GTK_LIBS)
+AC_SUBST(XML_LIBS)
+AC_SUBST(JPEG_LIBS)
 AC_SUBST(HACK_LIBS)
 AC_SUBST(XPM_LIBS)
 AC_SUBST(GL_LIBS)
@@ -2653,26 +3102,31 @@ AC_SUBST(SETUID_HACKS)
 AC_SUBST(INSTALL_DIRS)
 AC_SUBST(NEED_SETUID)
 AC_SUBST(INSTALL_PAM)
-AC_SUBST(SGI_VIDEO_OBJS)
-AC_SUBST(SGI_VIDEO_LIBS)
 
 AC_SUBST(PASSWD_SRCS)
 AC_SUBST(PASSWD_OBJS)
 AC_SUBST(XMU_SRCS)
 AC_SUBST(XMU_OBJS)
+AC_SUBST(XMU_LIBS)
 AC_SUBST(SAVER_GL_SRCS)
 AC_SUBST(SAVER_GL_OBJS)
 AC_SUBST(SAVER_GL_LIBS)
 AC_SUBST(LOCK_SRCS)
 AC_SUBST(LOCK_OBJS)
+AC_SUBST(JPEG_EXES)
 AC_SUBST(GL_EXES)
+AC_SUBST(GL_UTIL_EXES)
 AC_SUBST(GL_MEN)
 AC_SUBST(GL_KLUDGE)
 AC_SUBST(GLE_EXES)
 AC_SUBST(GLE_MEN)
 AC_SUBST(GLE_KLUDGE)
+AC_SUBST(GNOMEHELP_Y)
+AC_SUBST(GNOMEHELP_N)
 AC_SUBST(HACKDIR)
 AC_SUBST(GNOME_DATADIR)
+AC_SUBST(GTK_ICONDIR)
+AC_SUBST(HACK_CONF_DIR)
 
 APPDEFAULTS=$ac_x_app_defaults
 AC_SUBST(APPDEFAULTS)
@@ -2687,6 +3141,7 @@ AC_OUTPUT(Makefile
           driver/Makefile
           hacks/Makefile
           hacks/glx/Makefile
+          po/Makefile.in
           driver/XScreenSaver.ad)
 
 ###############################################################################
@@ -2773,6 +3228,10 @@ if test "$with_dpms_req" = yes -a "$have_dpms" = no ; then
   warn 'The DPMS extension was requested, but was not found.'
 fi
 
+if test "$with_xinerama_req" = yes -a "$have_xinerama" = no ; then
+  warn 'The Xinerama extension was requested, but was not found.'
+fi
+
 if test "$with_xf86vmode_req" = yes -a "$have_xf86vmode" = no ; then
   warn 'The XF86VMODE extension was requested, but was not found.'
 fi
@@ -2817,10 +3276,40 @@ if test "$with_gnome_req" = yes -a "$have_gnome" = no ; then
   warn2 'headers and/or libraries were not found.'
 fi
 
+if test "$have_gtk" = yes ; then
+  if test "$have_xml" = no ; then
+    if test "$with_xml_req" = yes ; then
+      warn  'Use of the XML library was requested, but the necessary'
+      warn2 'headers and/or libraries were not found.'
+    else
+      warn  'GTK is being used, but the XML library was not found.'
+    fi
+
+    if test "$xml_halfassed" = yes ; then
+
+      if test "$have_zlib" = yes ; then
+        which="XML libraries"
+      else
+        which="\`zlib' library"
+      fi
+
+      echo ''
+      warn2 'More specifically, we found the headers, but not the'
+      warn2 "$which; so either XML is half-installed on this"
+      warn2 "system, or something else went wrong.  The \`config.log'"
+      warn2 'file might contain some clues.'
+    fi
+
+    echo ''
+    warn2 "Without XML, the per-display-mode \`Settings' dialogs"
+    warn2 'will not be available.  Specify the location of the XML'
+    warn2 'library through the --with-xml option to configure.'
+  fi
+fi
 
 if test "$have_motif" = yes -a "$have_lesstif" = yes ; then
 
-  preferred_lesstif=0.86
+  preferred_lesstif=0.92
 
   if test "$lesstif_version" = unknown; then
     warnL "Unable to determine the LessTif version number!"
@@ -2837,37 +3326,105 @@ if test "$have_motif" = yes -a "$have_lesstif" = yes ; then
 fi
 
 
+if test "$have_motif" = yes -a "$have_gtk" = no ; then
+  warn  'Motif is being used, and GTK is not.'
+  echo  ''
+  warn2 'Though the Motif front-end to xscreensaver is still'
+  warn2 'maintained, it is no longer being updated with new'
+  warn2 'features: all new development on the xscreensaver-demo'
+  warn2 'program is happening in the GTK version, and not in the'
+  warn2 'Motif version.  It is recommended that you build against'
+  warn2 'GTK instead of Motif.  See <http://www.gtk.org/>.'
+fi
+
+
+if test "$with_xpm_req" = yes -a "$have_xpm" = no; then
+  warnL 'Use of XPM was requested, but it was not found.'
+fi
+
+if test "$with_gdk_pixbuf_req" = yes  -a "$have_gdk_pixbuf" = no; then
+  warnL 'Use of GDK-Pixbuf was requested, but it was not found.'
+fi
+
+if test "$have_xpm" = no -a "$have_gdk_pixbuf" = no; then
 
-if test "$have_xpm" = no ; then
   if test "$with_xpm_req" = yes ; then
-    warnL 'Use of XPM was requested, but it was not found.'
+    true
   elif test "$with_xpm_req" = no ; then
-    noteL 'The XPM library is not being used.'
+    warnL 'The XPM library is not being used.'
   else
-    noteL 'The XPM library was not found.'
+    warnL 'The XPM library was not found.'
+  fi
+
+  if test "$with_gdk_pixbuf_req" = yes ; then
+    true
+  elif test "$with_gdk_pixbuf_req" = no ; then
+    warnL 'The GDK-Pixbuf library is not being used.'
+  else
+    warnL 'The GDK-Pixbuf library was not found.'
+  fi
+
+  if test "$gdk_pixbuf_halfassed" = yes ; then
+    echo ''
+    warn2 'More specifically, we found the headers, but not the'
+    warn2 'libraries; so either GDK-Pixbuf is half-installed on this'
+    warn2 "system, or something else went wrong.  The \`config.log'"
+    warn2 'file might contain some clues.'
   fi
 
   echo ''
   warn2 'Some of the demos will not be as colorful as they'
-  warn2 'could be.  You might want to consider installing XPM'
-  warn2 'and re-running configure.  (Remember to delete the'
-  warn2 'config.cache file first.)  You can find XPM at most'
-  warn2 'X11 archive sites, such as <http://sunsite.unc.edu/>.'
+  warn2 'could be.  You should consider installing Pixbuf or'
+  warn2 'XPM and re-running configure.  (Remember to delete'
+  warn2 'the config.cache file first.)  The Pixbuf library is'
+  warn2 'a part of GNOME.  The XPM library comes with most'
+  warn2 'X11 installations; you can also find it at the X11'
+  warn2 'archive sites, such as <http://sunsite.unc.edu/>.'
+  echo  ''
+  warn2 'GDK-Pixbuf is recommended over XPM, as it provides'
+  warn2 'support for more image formats.'
+fi
+
+
+if test "$have_jpeg" = no ; then
+  if test "$with_jpeg_req" = yes ; then
+    warnL 'Use of libjpeg was requested, but it was not found.'
+  elif test "$with_jpeg_req" = no ; then
+    noteL 'The JPEG library is not being used.'
+  else
+    noteL 'The JPEG library was not found.'
+  fi
+
+  if test "$jpeg_halfassed" = yes ; then
+    echo ''
+    warn2 'More specifically, we found the headers, but not the'
+    warn2 'library; so either JPEG is half-installed on this'
+    warn2 "system, or something else went wrong.  The \`config.log'"
+    warn2 'file might contain some clues.'
+    echo ''
+  fi
+
+  warn2 "This means the \`webcollage' program will be much slower."
 fi
 
 
 if test "$have_gl" = yes -a "$ac_have_mesa_gl" = yes ; then
-  preferred_mesagl=3.0
+  preferred_mesagl=3.4
+  mgv="$ac_mesagl_version_string"
+  pgl="$preferred_mesagl"
 
   if test "$ac_mesagl_version" = unknown; then
     warnL "Unable to determine the MesaGL version number!"
     warn2 "Make sure you are using version $preferred_mesagl or newer."
 
   elif test \! "$ac_mesagl_version" -gt 2006; then
-    warnL "MesaGL version $ac_mesagl_version_string is being used."
-    warn2 "MesaGL versions 2.6 and earlier have a security bug."
-    warn2 "It is strongly recommended that you upgrade to at"
-    warn2 "least version $preferred_mesagl."
+    warnL "MesaGL version $mgv is being used.  MesaGL 2.6 and earlier"
+    warn2 "have a security bug.  It is strongly recommended that you"
+    warn2 "upgrade to at least version $preferred_mesagl."
+
+  elif test \! "$ac_mesagl_version" -gt 3003; then
+    warnL "MesaGL version $mgv is being used.  That version has some"
+    warn2 "bugs; it is recommended that you upgrade to $pgl or newer."
   fi
 fi
 
@@ -2936,13 +3493,9 @@ if test "$with_readdisplay_req" = yes -a "$have_readdisplay" = no ; then
   warn 'Use of XReadDisplay was requested, but it was not found.'
 fi
 
-if test "$with_sgivideo_req" = yes -a "$have_sgivideo" = no ; then
-  warn 'Use of the Iris Video Library was requested, but it was not found.'
-fi
-
-if test -n "$with_zippy_req"; then
-  if test "$with_zippy_req" != "$ac_cv_zippy_program" ; then
-    warnL "$with_zippy_req was requested as the Zippy program,"
+if test -n "$with_fortune_req"; then
+  if test "$with_fortune_req" != "$ac_cv_fortune_program" ; then
+    warnL "$with_fortune_req was requested as the Fortune program,"
     warn2 "but was not found.  The default will be used instead."
   fi
 fi
@@ -2975,17 +3528,24 @@ eval HACKDIR=${HACKDIR}
 eval HACKDIR=${HACKDIR}
 eval HACKDIR=${HACKDIR}
 eval HACKDIR=${HACKDIR}
+eval HACK_CONF_DIR=${HACK_CONF_DIR}
+eval HACK_CONF_DIR=${HACK_CONF_DIR}
+eval HACK_CONF_DIR=${HACK_CONF_DIR}
+eval HACK_CONF_DIR=${HACK_CONF_DIR}
+eval HACK_CONF_DIR=${HACK_CONF_DIR}
+eval HACK_CONF_DIR=${HACK_CONF_DIR}
 
 # canonicalize slashes.
-bindir=`echo  "${bindir}"  | sed 's@/$@@;s@//*@/@g'`
-HACKDIR=`echo "${HACKDIR}" | sed 's@/$@@;s@//*@/@g'`
+bindir=`echo  "${bindir}"              | sed 's@/$@@;s@//*@/@g'`
+HACKDIR=`echo "${HACKDIR}"             | sed 's@/$@@;s@//*@/@g'`
+HACK_CONF_DIR=`echo "${HACK_CONF_DIR}" | sed 's@/$@@;s@//*@/@g'`
 
 
-# Sanity check the subdir
+# Sanity check the hackdir
 for bad_choice in xscreensaver xscreensaver-demo xscreensaver-command ; do
   if test "${HACKDIR}" = "${bindir}/${bad_choice}" ; then
     echo ""
-    AC_MSG_ERROR([\"--enable-subdir=${bindir}/${bad_choice}\" won't work.
+    AC_MSG_ERROR([\"--with-hackdir=${bindir}/${bad_choice}\" won't work.
                    There will be an executable installed with that name, so
                    that can't be the name of a directory as well.  Please
                    re-configure with a different directory name.])
@@ -2999,8 +3559,8 @@ do_dir_warning=no
 
 # M4 sucks!!
 changequote(X,Y)
-rpmv=`(rpm -qv xscreensaver) 2>&- | \
-      sed 's/^xscreensaver-\([0-9][0-9]*[.][0-9][0-9]*\)-.*$/\1/'`
+rpmv=`(rpm -qv xscreensaver) 2>/dev/null | \
+      sed -n 's/^xscreensaver-\([0-9][0-9]*[.][0-9][0-9]*\)-.*$/\1/p'`
 changequote([,])
 
 if test \! -z "$rpmv" ; then
@@ -3019,29 +3579,16 @@ if test \! -z "$rpmv" ; then
   echo ""
 
   if test "$rpmbdir" = "$rpmhdir" ; then
-    warn2 "The RPM version was installed in $rpmbdir."
+    warn2 "The RPM version was installed in $rpmbdir/."
   else
-    warn2 "The RPM version was installed in $rpmbdir,"
-    warn2 "with demos in $rpmhdir."
+    warn2 "The RPM version was installed in $rpmbdir/,"
+    warn2 "with demos in $rpmhdir/."
   fi
 
   do_dir_warning=yes
 fi
 
 
-# Warn about egregious GNOME bogosity.
-#
-#if (rpm -qv control-center) >&- 2>&- ; then
-#  warning=no
-#  warnL "The Gnome Control Center seems to be installed."
-#  echo  ""
-#  warn2 "Note that simply installing this version of xscreensaver"
-#  warn2 "will not cause GNOME to know about the newly-added display"
-#  warn2 "modes -- GNOME is just lame that way.  Instead of using the"
-#  warn2 "Control Center, try using the \`xscreensaver-demo' command."
-#fi
-
-
 if test "${bindir}" = "${HACKDIR}" ; then
   do_dir_warning=yes
 fi
@@ -3052,18 +3599,27 @@ if test "$do_dir_warning" = yes; then
   echo ""
   echo '      When you run "make install", the "xscreensaver",'
   echo '      "xscreensaver-demo", and "xscreensaver-command" executables'
-  echo "      will be installed in ${bindir}."
+  echo "      will be installed in ${bindir}/."
   echo ""
-  echo "      The various graphics demos (120+ different executables) will"
-  echo "      also be installed in ${HACKDIR}."
+  echo "      The various graphics demos (140+ different executables) will"
+  echo "      be installed in ${HACKDIR}/."
   echo ""
-  echo "      If you would prefer the demos to be installed elsewhere"
-  echo "      (for example, in a dedicated directory) you should re-run"
-  echo "      configure with the --enable-subdir=DIR option.  For more"
-  echo "      information, run $0 --help."
+  echo "      If you would prefer the demos to be installed elsewhere,"
+  echo "      you should re-run configure with the --with-hackdir=DIR"
+  echo "      option.  For more information, run \`./configure --help'."
   warning=yes
 fi
 
 if test "$warning" != no; then
   echo '' ; echo "$warnsep" ; echo ''
 fi
+
+if test "$do_dir_warning" = no; then
+  if test "$warning" = no; then
+    echo ''
+  fi
+  echo "User programs will be installed in ${bindir}/"
+  echo "Screen savers will be installed in ${HACKDIR}/"
+  echo "Configuration will be installed in ${HACK_CONF_DIR}/"
+  echo ''
+fi