Likely not appropriate for upstream in current form; needs further

investigation to see if there is a fix needed to libtool.

--- gtk+-3.16.3/configure.ac 2015-07-02 15:01:30.544630866 -0700

+++ gtk+-3.16.3/configure.ac 2015-07-02 15:18:42.000041546 -0700

@@ -1681,6 +1681,11 @@

if test "$have_libcanberra" = "no"; then

AC_MSG_ERROR([--enable-libcanberra specified, but not available])

fi

+

+ # Ensure gtk-3 and gdk-3 are omitted so that no attempt is made to link

+ # to any system-installed versions causing a multiple inclusion build

+ # failure.

+ LIBCANBERRA_LIBS=$(echo "$LIBCANBERRA_LIBS" | $SED -e 's/-lgtk-3//' -e 's/-lgdk-3//')

fi

fi