Mercurial > hg > octave-lyh > gnulib-hg
changeset 13461:b9e80fe39af5
Unify tests that set gl_cv_func_frexpl_no_libm.
author | Bruno Haible <bruno@clisp.org> |
---|---|
date | Mon, 12 Jul 2010 23:16:46 +0200 |
parents | 54037f4be4a4 |
children | 88292c519d86 |
files | ChangeLog m4/frexpl.m4 m4/printf-frexpl.m4 |
diffstat | 3 files changed, 29 insertions(+), 31 deletions(-) [+] |
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--- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,11 @@ +2010-07-12 Bruno Haible <bruno@clisp.org> + + Unify tests that set gl_cv_func_frexpl_no_libm. + * m4/frexpl.m4 (gl_CHECK_FREXPL_NO_LIBM): New macro, extracted from + gl_FUNC_FREXPL_NO_LIBM. + (gl_FUNC_FREXPL, gl_FUNC_FREXPL_NO_LIBM): Invoke it. + * m4/printf-frexpl.m4 (gl_FUNC_PRINTF_FREXPL): Likewise. + 2010-07-12 Bruno Haible <bruno@clisp.org> Unify tests that set gl_cv_func_frexp_no_libm.
--- a/m4/frexpl.m4 +++ b/m4/frexpl.m4 @@ -1,4 +1,4 @@ -# frexpl.m4 serial 9 +# frexpl.m4 serial 10 dnl Copyright (C) 2007-2010 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, @@ -12,15 +12,7 @@ AC_CHECK_DECL([frexpl], , [HAVE_DECL_FREXPL=0], [#include <math.h>]) FREXPL_LIBM= if test $HAVE_DECL_FREXPL = 1; then - AC_CACHE_CHECK([whether frexpl() can be used without linking with libm], - [gl_cv_func_frexpl_no_libm], - [ - AC_TRY_LINK([#include <math.h> - long double x;], - [int e; return frexpl (x, &e) > 0;], - [gl_cv_func_frexpl_no_libm=yes], - [gl_cv_func_frexpl_no_libm=no]) - ]) + gl_CHECK_FREXPL_NO_LIBM if test $gl_cv_func_frexpl_no_libm = no; then AC_CACHE_CHECK([whether frexpl() can be used with libm], [gl_cv_func_frexpl_in_libm], @@ -69,15 +61,7 @@ dnl MacOS X 10.3 has frexpl() in libc but doesn't declare it in <math.h>. AC_CHECK_DECL([frexpl], , [HAVE_DECL_FREXPL=0], [#include <math.h>]) if test $HAVE_DECL_FREXPL = 1; then - AC_CACHE_CHECK([whether frexpl() can be used without linking with libm], - [gl_cv_func_frexpl_no_libm], - [ - AC_TRY_LINK([#include <math.h> - long double x;], - [int e; return frexpl (x, &e) > 0;], - [gl_cv_func_frexpl_no_libm=yes], - [gl_cv_func_frexpl_no_libm=no]) - ]) + gl_CHECK_FREXPL_NO_LIBM if test $gl_cv_func_frexpl_no_libm = yes; then gl_FUNC_FREXPL_WORKS case "$gl_cv_func_frexpl_works" in @@ -99,6 +83,21 @@ fi ]) +dnl Test whether frexpl() can be used without linking with libm. +dnl Set gl_cv_func_frexpl_no_libm to 'yes' or 'no' accordingly. +AC_DEFUN([gl_CHECK_FREXPL_NO_LIBM], +[ + AC_CACHE_CHECK([whether frexpl() can be used without linking with libm], + [gl_cv_func_frexpl_no_libm], + [ + AC_TRY_LINK([#include <math.h> + long double x;], + [int e; return frexpl (x, &e) > 0;], + [gl_cv_func_frexpl_no_libm=yes], + [gl_cv_func_frexpl_no_libm=no]) + ]) +]) + dnl Test whether frexpl() works on finite numbers (this fails on dnl MacOS X 10.4/PowerPC, on AIX 5.1, and on BeOS), on denormalized numbers dnl (this fails on MacOS X 10.5/i386), and also on infinite numbers (this
--- a/m4/printf-frexpl.m4 +++ b/m4/printf-frexpl.m4 @@ -1,5 +1,5 @@ -# printf-frexpl.m4 serial 6 -dnl Copyright (C) 2007, 2009, 2010 Free Software Foundation, Inc. +# printf-frexpl.m4 serial 7 +dnl Copyright (C) 2007, 2009-2010 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. @@ -10,16 +10,7 @@ [ AC_REQUIRE([gl_MATH_H_DEFAULTS]) dnl Subset of gl_FUNC_FREXPL_NO_LIBM. - AC_CACHE_CHECK([whether frexpl can be used without linking with libm], - [gl_cv_func_frexpl_no_libm], - [ - AC_TRY_LINK([#include <math.h> - long double x; - int y;], - [return frexpl (x, &y) < 1;], - [gl_cv_func_frexpl_no_libm=yes], - [gl_cv_func_frexpl_no_libm=no]) - ]) + gl_CHECK_FREXPL_NO_LIBM if test $gl_cv_func_frexpl_no_libm = yes; then gl_FUNC_FREXPL_WORKS case "$gl_cv_func_frexpl_works" in