AC_ARG_WITH(profile4, [ --with-profile4=yes,no If you want to install the 4.0 FX (defaults to yes)], [], [with_profile4=yes])
AC_ARG_WITH(monodroid, [ --with-monodroid=yes,no If you want to build the MonoDroid 2.1 assemblies (defaults to no)], [], [with_monodroid=no])
AC_ARG_WITH(monotouch, [ --with-monotouch=yes,no If you want to build the MonoTouch 2.1 assemblies (defaults to no)], [], [with_monotouch=no])
AC_ARG_WITH(profile4, [ --with-profile4=yes,no If you want to install the 4.0 FX (defaults to yes)], [], [with_profile4=yes])
AC_ARG_WITH(monodroid, [ --with-monodroid=yes,no If you want to build the MonoDroid 2.1 assemblies (defaults to no)], [], [with_monodroid=no])
AC_ARG_WITH(monotouch, [ --with-monotouch=yes,no If you want to build the MonoTouch 2.1 assemblies (defaults to no)], [], [with_monotouch=no])