Re: shouldn't it error?

[Ben Pfaff]

Bob Lockie <address@hidden> writes:

> Shouldn't the following give an error about an unknown option
> "./configure --enable-debu=full"?

Actually this is explained in the Autoconf manual:

       `configure' scripts do not complain about
    `--enable-FEATURE' options that they do not support.  This
    behavior permits configuring a source tree containing
    multiple packages with a top-level `configure' script when
    the packages support different options, without spurious
    error messages about options that some of the packages
    support.  An unfortunate side effect is that option spelling
    errors are not diagnosed.  No better approach to this problem
    has been suggested so far.

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