+# Build with intermodule optimisations
+AC_MSG_CHECKING([for --enable-intermodule])
+AC_ARG_ENABLE(intermodule,
+[ --enable-intermodule build the library in one step],
+[case "$enable_intermodule" in
+ yes) onestep="-onestep";;
+ *) onestep="";;
+esac],
+[onestep=""])
+AC_MSG_RESULT($enable_intermodule)
+AM_CONDITIONAL(onestep,[test x$onestep = x-onestep])
+AC_SUBST(onestep)