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Re: m4 macro default behavior

From: Ralf Wildenhues
Subject: Re: m4 macro default behavior
Date: Mon, 14 Aug 2006 18:05:22 +0200
User-agent: Mutt/1.5.12 (2006-08-10)

Hello Thomas,

Sorry for the delay.

* Thomas Porschberg wrote on Tue, Jul 18, 2006 at 07:38:25AM CEST:
> I wrote some m4 macros for the boost libraries(see
> ATM the default behavior is that the user has to give
> --with-boost, --with-boost-files-date-time....
> to the configure script in order to set the boost compile/linker flags
> (the last parameter of AC_ARG_WITH sets want_boost="no").
> Is there any disadvantage to make the default behavior want_boost="yes"
> so that user doesn't need to tell anything to configure ?

For (very) simple macros I try to do this:
  --with-foo     enable use of package FOO, error out if it does not work
  --without-foo  disable use of package FOO
  user specifies nothing
                 if possible, enable use of package FOO (but no error

YMMV, though.


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