Hendrik Tews wrote:

> Further, there is no way to add an additional
> configure option.

Does AC_ARG_ENABLE not do the trick?

I use something like this:

    AC_ARG_ENABLE(gcc-werror,
	AC_HELP_STRING([--enable-gcc-werror], [enable -Werror in all Makefiles]))

which sets the variable $enable_gcc_werror.

Erik
-- 
+-----------------------------------------------------------+
  Erik de Castro Lopo
+-----------------------------------------------------------+
A Microsoft Certified System Engineer is to computing what a
MacDonalds Certified Food Specialist is to fine cuisine.