BACKEND_LIBTOOL_FLAGS="-module -avoid-version"
AC_SUBST(BACKEND_LIBTOOL_FLAGS)
+dnl ===== Check special functions
+evince_save_LIBS=$LIBS
+LIBS="$LIBS $BACKEND_LIBS"
+AC_CHECK_FUNCS(cairo_format_stride_for_width)
+LIBS=$evince_save_LIBS
+
AC_ARG_WITH(keyring,
AC_HELP_STRING([--without-keyring],[disable the use of gnome-keyring]),
[case "${withval}" in