diff options
Diffstat (limited to 'gnulib-m4/printf-frexpl.m4')
| -rw-r--r-- | gnulib-m4/printf-frexpl.m4 | 36 |
1 files changed, 10 insertions, 26 deletions
diff --git a/gnulib-m4/printf-frexpl.m4 b/gnulib-m4/printf-frexpl.m4 index 14ffe1f..ab0eccf 100644 --- a/gnulib-m4/printf-frexpl.m4 +++ b/gnulib-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 10 +dnl Copyright (C) 2007, 2009-2015 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. @@ -9,17 +9,10 @@ dnl Check how to define printf_frexpl() without linking with libm. AC_DEFUN([gl_FUNC_PRINTF_FREXPL], [ AC_REQUIRE([gl_MATH_H_DEFAULTS]) + AC_REQUIRE([gl_LONG_DOUBLE_VS_DOUBLE]) + 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 @@ -35,20 +28,11 @@ AC_DEFUN([gl_FUNC_PRINTF_FREXPL], AC_DEFINE([HAVE_FREXPL_IN_LIBC], [1], [Define if the frexpl function is available in libc.]) dnl Also check whether it's declared. - 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>]) + dnl Mac OS 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>]]) fi - AC_CACHE_CHECK([whether ldexpl can be used without linking with libm], - [gl_cv_func_ldexpl_no_libm], - [ - AC_TRY_LINK([#include <math.h> - long double x; - int y;], - [return ldexpl (x, y) < 1;], - [gl_cv_func_ldexpl_no_libm=yes], - [gl_cv_func_ldexpl_no_libm=no]) - ]) + gl_CHECK_LDEXPL_NO_LIBM if test $gl_cv_func_ldexpl_no_libm = yes; then gl_FUNC_LDEXPL_WORKS case "$gl_cv_func_ldexpl_works" in @@ -56,8 +40,8 @@ AC_DEFUN([gl_FUNC_PRINTF_FREXPL], AC_DEFINE([HAVE_LDEXPL_IN_LIBC], [1], [Define if the ldexpl function is available in libc.]) dnl Also check whether it's declared. - dnl MacOS X 10.3 has ldexpl() in libc but doesn't declare it in <math.h>. - AC_CHECK_DECL([ldexpl], , [HAVE_DECL_LDEXPL=0], [#include <math.h>]) + dnl Mac OS X 10.3 has ldexpl() in libc but doesn't declare it in <math.h>. + AC_CHECK_DECL([ldexpl], , [HAVE_DECL_LDEXPL=0], [[#include <math.h>]]) ;; esac fi |