Re: Output additional header file

[Gavin Smith]

On 27 May 2016 at 12:56, A.P. Horst <address@hidden> wrote:
> I am trying to output an additional header file which should hold a small
> subset if the defines in the regular config.h.
> Currently my simple test setup is set to create test.h:
> AC_CONFIG_HEADERS([config.h test.h])
>
> I have written test.h.in, in which I just copied over a #undef entry from
> config.h.in:
> /* HAVE_FOO_H */
> #undef HAVE_FOO_H
>
> Which is generated by autoreconf (autoheader) from an AC_DEFINE statement.
>
> When doing configure, it says it creates test.h:
> config.status: creating config.h
> config.status: creating test.h
>
> And it does. But test.h still has the #undef line, while config.h correctly
> has the #undef line replaced.
>
> What am I missing here or doing wrong?

If you emailed a small, self-contained example with this problem, I'd
try to work out what was going wrong with it.