At first, thank you all for your help on my previous problem.
Here is the next one:
How can i force the caller of my configure script to pass certain
arguments ?
I detail: What i have now is:
AC_ARG_WITH(vtk-headers,
[ --with-vtk-headers The location of the vtk header files ],
[ vtk_headers=$withval ])
VTK_CFLAGS="-I$vtk_headers"
AC_SUBST(VTK_CFLAGS)
However, when the caller of configure forgets to pass this option,
configure will work, but make certainly fail. So it would be great, if i
can
check if certain arguments were supplied allready in configure and exit with
an error message if not.
Matthias Langer
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