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Re: Platform-specific AC_ARG_*

From: Ralf Wildenhues
Subject: Re: Platform-specific AC_ARG_*
Date: Mon, 23 Jun 2008 19:36:25 +0200
User-agent: Mutt/1.5.17+20080114 (2008-01-14)

* 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.


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