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Re: Platform-specific AC_ARG_*

From: Harlan Stenn
Subject: Re: Platform-specific AC_ARG_*
Date: Mon, 23 Jun 2008 18:02:53 +0000

Ralf wrote:
> * Harlan Stenn wrote on Mon, Jun 23, 2008 at 07:31:17PM CEST:
> > 
> > As I recall, the recommended behavior is to ignore unknown --with[out]-*
> > and --[dis]enable-* flags, as a top-level configure script may be
> > calling more than one subordinate configure scripts.
> Autoconf 2.62 warns about them by default (quoting NEWS):
> | ** Warnings are now generated by default when an installer invokes
> |    'configure' with an unknown --enable-* or --with-* option.
> |    These warnings can be disabled with the new AC_DISABLE_OPTION_CHECKING
> |    macro, or by invoking 'configure' with --disable-option-checking.
> Presence of AC_CONFIG_SUBDIRS also turns off the warning as the
> mechanism isn't yet smart enough to know about subdir configure options.

Thanks - I wasn't aware of that.

I do my best to have NTP (at least) build with the *oldest* possible
auto* tools, as there are a lot of folks out there who end up needing to
run autoreconf and I catch heat from them if I *require* them to update
their toolchains without "good reason".

This generally means I have to test my packaging with several different
versions of various autotools, but I usually have the "oldest supported"
tools on one machine, the "newest" on another, and the "most common
middle version" on another, which is usually the machine where I do my


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