From: Dmitry Samersoff <dms@wplus.net>
To: Patrick van Kleef <pvk@pobox.com>
Cc: pgsql-hackers@postgresql.org
Subject: Re: [HACKERS] Off-topic: autoconf guru
Date: Thu, 29 Jul 1999 19:52:00 +0400 (MSD)
Message-ID: <XFMail.990729195200.dms@wplus.net> (raw)
In-Reply-To: <199907291459.QAA10044@roadrunner.pvk.openlinksw.com>
On 29-Jul-99 Patrick van Kleef wrote:
> Hi Dmitry,
>
> Autoconf can do this out of the box. With the macros AC_LANG_C and
> AC_LANG_CPLUSPLUS you can switch between C and C++ compiler mode. Here
> is a small example based on the snippet you provided:
Thank you very match !!!!
It is exactly what I need for !!!
>
>
> AC_PREREQ(2.12)
> AC_INIT(configure.in)
>
> #
> # Check which C and C++ compiler to use
> #
> AC_PROG_CC
> AC_PROG_CXX
>
> #
> # The following checks are done with the C compiler
> #
> AC_LANG_C
>
> AC_CHECK_FUNC(accept)
>
>
> #
> # Now switch over to the C++ compiler for the next test
> #
> AC_LANG_CPLUSPLUS
>
> AC_MSG_CHECKING(socket size type)
> AC_TRY_COMPILE([#include <stdlib.h>
> #include <sys/types.h>
> #include <sys/socket.h>
> ],
> [int a = accept(1, (struct sockaddr *) 0, (int *) 0);],
> [AC_DEFINE(SOCKET_SIZE_TYPE, int) AC_MSG_RESULT(int)],
> [AC_DEFINE(SOCKET_SIZE_TYPE, size_t) AC_MSG_RESULT(size_t)])
>
> #
> # Switch back to C mode again
> #
> AC_LANG_C
>
> AC_OUTPUT()
>
>
> Best regards,
>
> Patrick
> --
> Patrick van Kleef
> pkleef@roady.xs4all.nl
---
Dmitry Samersoff, dms@wplus.net, ICQ:3161705
http://devnull.wplus.net
* There will come soft rains ...
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To: pgsql-hackers@postgresql.org
Cc: dms@wplus.net, pvk@pobox.com
Subject: Re: [HACKERS] Off-topic: autoconf guru
In-Reply-To: <XFMail.990729195200.dms@wplus.net>
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