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Re: Automatic rebuilds, LIBS, and autoheader


From: Stepan Kasal
Subject: Re: Automatic rebuilds, LIBS, and autoheader
Date: Thu, 8 Jun 2006 21:01:38 +0200
User-agent: Mutt/1.4.2.1i

Hello,

On Tue, Jun 06, 2006 at 08:23:26PM -0700, Micah J. Cowan wrote:
>   AC_CHECK_LIB(readline, readline,
>         [AC_DEFINE(HAVE_LIBREADLINE, 1,
>           [Define to 1 if you have the `readline' library (libreadline).])],
>         [AC_MSG_WARN([Won't build pitchcalc])])

well, I wouldn't hesitate to use the above.

But if you don't like it, you can separate the declaration from
AC_DEFINE, using AH_TEMPLATE:

AH_TEMPLATE([HAVE_LIBREADLINE], [Define to 1 if you have the
        `readline' library (libreadline).]
...

Or you can use undocumented macro AH_CHECK_LIB:

AH_CHECK_LIB([readline])
AH_CHECK_LIB([check])
AH_CHECK_LIB([m])

Or, if you want to make in in one go for all three:

m4_foreach([A_LIB], [readline, check, m], [AH_CHECK_LIB(A_LIB)])

Hope this will help,
        Stepan Kasal





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