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Re: Broken frexpl test
From: |
Bruno Haible |
Subject: |
Re: Broken frexpl test |
Date: |
Thu, 31 Jan 2008 00:29:07 +0100 |
User-agent: |
KMail/1.5.4 |
Andreas Schwab wrote:
> The frexpl test always fails because it uses LDBL_MIN_EXP without
> including <float.h>.
Oops, thank you for noticing this!
> 2008-01-30 Andreas Schwab <address@hidden>
>
> * m4/frexpl.m4 (gl_FUNC_FREXPL_WORKS): Include <float.h>.
I'm applying this. On those platforms where LDBL_MIN_EXP has a wrong value,
let's use the fixed value.
Thanks!
2008-01-30 Andreas Schwab <address@hidden>
Bruno Haible <address@hidden>
* m4/frexpl.m4 (gl_FUNC_FREXPL_WORKS): Include <float.h> and ensure a
correct definition of LDBL_MIN_EXP.
*** m4/frexpl.m4.orig 2008-01-31 00:24:22.000000000 +0100
--- m4/frexpl.m4 2008-01-31 00:22:22.000000000 +0100
***************
*** 1,4 ****
! # frexpl.m4 serial 7
dnl Copyright (C) 2007-2008 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
--- 1,4 ----
! # frexpl.m4 serial 8
dnl Copyright (C) 2007-2008 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
***************
*** 106,112 ****
--- 106,118 ----
AC_CACHE_CHECK([whether frexpl works], [gl_cv_func_frexpl_works],
[
AC_TRY_RUN([
+ #include <float.h>
#include <math.h>
+ /* Override the values of <float.h>, like done in float.in.h. */
+ #if defined __i386__ && (defined __BEOS__ || defined __OpenBSD__)
+ # undef LDBL_MIN_EXP
+ # define LDBL_MIN_EXP (-16381)
+ #endif
extern long double frexpl (long double, int *);
int main()
{