From: Tristan Gingold <gingold@adacore.com>
To: Paolo Bonzini <pbonzini@redhat.com>
Cc: Tobias Burnus <tobias.burnus@physik.fu-berlin.de>,
GCC Patches <gcc-patches@gcc.gnu.org>,
fortran@gcc.gnu.org, Ralf Corsepius <ralf.corsepius@rtems.org>,
jb@gcc.gnu.org
Subject: Re: [Patch V2] libgfortran: do not assume libm
Date: Mon, 26 Mar 2012 08:44:00 -0000 [thread overview]
Message-ID: <EC7480F6-60BC-425D-BF60-93FEEF0DAE57@adacore.com> (raw)
In-Reply-To: <4F6AF98F.1000005@redhat.com>
On Mar 22, 2012, at 11:06 AM, Paolo Bonzini wrote:
> Il 22/03/2012 09:30, Tristan Gingold ha scritto:
>> Hi,
>>
>> this is version 2 of the patch.
>>
>> The initial problem is that libgfortran configure.ac used AC_CHECK_LIB([m]…) to check wether several math functions are available. That doesn't work on VMS, because there is no such things as a libm.
>>
>> It seems to me that there are no autoconf macro to check wether a function is available: AC_CHECK_FUNC[S] don't allow to specify additional include files (necessary on VMS as some math functions are renamed through macros), and AC_CHECK_DECL only checks the presence of the declaration (as pointed out by Ralf).
>>
>> So I have finally learnt a little bit more about autoconf and added a new file: config/math.m4 (build machinery maintainer cc:)
>> libgfortran/configure.ac now uses the new GCC_CHECK_MATH_FUNC macro.
>>
>> Bootstrapped without gfortran regressions on x86_64-darwin.
>>
>> Ok for trunk ?
>>
>> (I will submit a follow-up change in libquadmath once this change is approved).
>>
>> Tristan.
>>
>> config/
>> 2012-03-22 Tristan Gingold <gingold@adacore.com>
>>
>> * math.m4: New file.
>>
>> libgfortran/
>> 2012-03-22 Tristan Gingold <gingold@adacore.com>
>>
>> * configure.ac: Use GCC_CHECK_MATH_FUNC for math functions.
>> * acinclude.m4: Include ../config/math.m4
>> * configure: Regenerate.
>> * Makefile.in: Regenerate.
>
> Ok.
Thanks, now committed.
Tristan.
next prev parent reply other threads:[~2012-03-26 8:44 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-03-20 9:49 [Patch] " Tobias Burnus
2012-03-20 9:57 ` Tristan Gingold
2012-03-22 8:30 ` [Patch V2] " Tristan Gingold
2012-03-22 10:07 ` Paolo Bonzini
2012-03-22 20:57 ` Tobias Burnus
2012-03-26 8:44 ` Tristan Gingold [this message]
2012-03-26 21:43 ` Janne Blomqvist
2012-03-27 7:51 ` Tristan Gingold
2012-03-27 8:01 ` Tristan Gingold
2012-03-27 8:39 ` Janne Blomqvist
2012-03-27 9:29 ` Tristan Gingold
2012-03-30 10:22 ` Tristan Gingold
2012-03-30 12:40 ` Paolo Bonzini
2012-04-02 7:47 ` Tristan Gingold
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