diff options
| author | Stephen Kitt <skitt@debian.org> | 2016-05-27 10:11:04 +0200 |
|---|---|---|
| committer | Manuel A. Fernandez Montecelo <manuel.montezelo@gmail.com> | 2016-05-27 14:28:33 +0100 |
| commit | 752fd7247bc223bcea35bd89cf56d1c08ead9ba6 (patch) | |
| tree | b4a428f847a963738faaf24c8eff070fdb03a3a5 /gnulib-m4/printf-frexp.m4 | |
| parent | 9f7d4fa477ff2a51d7c932b13d57ac22dc033105 (diff) | |
| parent | a9a31b1de5776a3b08a82101a4fa711294f0dd1d (diff) | |
Imported Debian patch 0.9.6+really0.9.3-0.1debian/0.9.6+really0.9.3-0.1
Diffstat (limited to 'gnulib-m4/printf-frexp.m4')
| -rw-r--r-- | gnulib-m4/printf-frexp.m4 | 25 |
1 files changed, 16 insertions, 9 deletions
diff --git a/gnulib-m4/printf-frexp.m4 b/gnulib-m4/printf-frexp.m4 index b923c82b..c42391a4 100644 --- a/gnulib-m4/printf-frexp.m4 +++ b/gnulib-m4/printf-frexp.m4 @@ -1,5 +1,5 @@ -# printf-frexp.m4 serial 5 -dnl Copyright (C) 2007, 2009-2015 Free Software Foundation, Inc. +# printf-frexp.m4 serial 3 +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. @@ -8,7 +8,16 @@ dnl Check how to define printf_frexp() without linking with libm. AC_DEFUN([gl_FUNC_PRINTF_FREXP], [ - AC_REQUIRE([gl_CHECK_FREXP_NO_LIBM]) + AC_CACHE_CHECK([whether frexp can be used without linking with libm], + [gl_cv_func_frexp_no_libm], + [ + AC_TRY_LINK([#include <math.h> + double x; + int y;], + [return frexp (x, &y) < 1;], + [gl_cv_func_frexp_no_libm=yes], + [gl_cv_func_frexp_no_libm=no]) + ]) if test $gl_cv_func_frexp_no_libm = yes; then gl_FUNC_FREXP_WORKS case "$gl_cv_func_frexp_works" in @@ -22,12 +31,10 @@ AC_DEFUN([gl_FUNC_PRINTF_FREXP], AC_CACHE_CHECK([whether ldexp can be used without linking with libm], [gl_cv_func_ldexp_no_libm], [ - AC_LINK_IFELSE( - [AC_LANG_PROGRAM( - [[#include <math.h> - double x; - int y;]], - [[return ldexp (x, y) < 1;]])], + AC_TRY_LINK([#include <math.h> + double x; + int y;], + [return ldexp (x, y) < 1;], [gl_cv_func_ldexp_no_libm=yes], [gl_cv_func_ldexp_no_libm=no]) ]) |