Mercurial > gnulib
view m4/copysign.m4 @ 40246:c34f677e6117 default tip master
_Noreturn: GCC 4.7 does not support [[noreturn]] in C++11 mode
* lib/_Noreturn.h, m4/gnulib-common.m4: Don't use [[noreturn]] before
GCC 4.8.
author | Akim Demaille <akim.demaille@gmail.com> |
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date | Sun, 17 Mar 2019 19:27:20 +0100 |
parents | b06060465f09 |
children |
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# copysign.m4 serial 1 dnl Copyright (C) 2011-2019 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. AC_DEFUN([gl_FUNC_COPYSIGN], [ AC_REQUIRE([gl_MATH_H_DEFAULTS]) dnl Determine COPYSIGN_LIBM. gl_MATHFUNC([copysign], [double], [(double, double)]) if test $gl_cv_func_copysign_no_libm = no \ && test $gl_cv_func_copysign_in_libm = no; then HAVE_COPYSIGN=0 COPYSIGN_LIBM= fi AC_SUBST([COPYSIGN_LIBM]) ])