+# Plugin flags; include '-module' in each Makefile.am, because AC_SUBSTed
+# variables are black boxes to Automake, so it has to know about it being a
+# module in the makefile itself.
+PLUGIN_LIBTOOL_FLAGS='-avoid-version -shared -export-symbols-regex "^glk"'
+AC_SUBST(PLUGIN_LIBTOOL_FLAGS)
+