+ if test "$with_toolkit_scroll_bars" != no; then
+ with_toolkit_scroll_bars=yes
+ fi
+
+ dnl Check if we can use multiple displays with this GTK version.
+ dnl If gdk_display_open exists, assume all others are there also.
+ HAVE_GTK_MULTIDISPLAY=no
+ AC_CHECK_FUNCS(gdk_display_open, HAVE_GTK_MULTIDISPLAY=yes)
+ if test "${HAVE_GTK_MULTIDISPLAY}" = "yes"; then
+ AC_DEFINE(HAVE_GTK_MULTIDISPLAY, 1,
+ [Define to 1 if GTK can handle more than one display.])
+ fi
+ dnl Check if we have the old file selection dialog.
+ dnl If gdk_display_open exists, assume all others are there also.
+ HAVE_GTK_FILE_SELECTION=no
+ AC_CHECK_FUNCS(gtk_file_selection_new, HAVE_GTK_FILE_SELECTION=yes)
+
+ dnl Check if we have the new file chooser dialog
+ dnl If gdk_display_open exists, assume all others are there also.
+ HAVE_GTK_FILE_CHOOSER=no
+ AC_CHECK_FUNCS(gtk_file_chooser_dialog_new, HAVE_GTK_FILE_CHOOSER=yes)
+
+ if test "$HAVE_GTK_FILE_SELECTION" = yes \
+ && test "$HAVE_GTK_FILE_CHOOSER" = yes; then
+ AC_DEFINE(HAVE_GTK_FILE_BOTH, 1,
+ [Define to 1 if GTK has both file selection and chooser dialog.])
+ fi
+
+ dnl Check if pthreads are available. Emacs only needs this when using
+ dnl gtk_file_chooser under Gnome.
+ if test "$HAVE_GTK_FILE_CHOOSER" = yes; then
+ HAVE_GTK_AND_PTHREAD=no
+ AC_CHECK_HEADERS(pthread.h)
+ if test "$ac_cv_header_pthread_h"; then
+ AC_CHECK_LIB(pthread, pthread_self, HAVE_GTK_AND_PTHREAD=yes)
+ fi
+ if test "$HAVE_GTK_AND_PTHREAD" = yes; then
+ GTK_LIBS="$GTK_LIBS -lpthread"
+ AC_DEFINE(HAVE_GTK_AND_PTHREAD, 1,
+ [Define to 1 if you have GTK and pthread (-lpthread).])
+ fi
+ fi