Re: memcmp module

[Jim Meyering]

> *snip*
>
>> +    if test x"$SKIP_FTRUNCATE_CHECK" != xyes; then
>> +      AC_MSG_FAILURE([Your system lacks the ftruncate function.
>> +      Please report this, along with the output of "uname -a", to the
>> +      address@hidden mailing list.  To continue past this point,
>> +      rerun configure with SKIP_FTRUNCATE_CHECK=yes set in the environment.
>> +      E.g., env SKIP_FTRUNCATE_CHECK=yes ./configure])
>
> Please do not teach users to set environment variables rather than pass
> arguments to configure.
>   ./configure SKIP_FTRUNCATE_CHECK=yes
>
> has the same effect for your code, but happens to still work with a
> later
>   ./config.status --recheck
>
> which may be issued by the user, or triggered by some makefile rules.

Good point.
I've adjusted it.

Thanks.