Re: AC_SUBST and AC_CACHE_VAL

[Ralf Wildenhues]

* Stefan Bienert wrote on Wed, May 13, 2009 at 11:05:35PM CEST:
> 
> > Accepting an initial value by the user from the command line or the
> > environment, as I wrote earlier.  Sorry for the being terse.
> 
> Oh, this would be neat. Where's the problem with not initialising SB_FOOS?

There is no problem with it.  But you're inconsistent if you
- accept an initial value,
- change that value during configure unconditionally (i.e., without
  taking into account the initial value),
- and save the final value at the end of configure, to be reused as
  initial value for the next configure run.

Cheers,
Ralf