[AC_MSG_ERROR([Cannot find popt.])]
)
+# Plugins
+AC_ARG_VAR([PLUGINSDIR], [built-in plugins install directory [LIBDIR/babeltrace/plugins]])
+AS_IF([test "x$PLUGINSDIR" = x], [PLUGINSDIR='$(libdir)/babeltrace/plugins'])
+
# For Python
# SWIG version needed or newer:
swig_version=2.0.0