Hash :
b1f65faa
Author :
Date :
2024-10-17T21:52:41
Use a warranty disclaimer in all-permissive license notices. * etc/license-notices/unlimited: Add a short warranty disclaimer sentence. * m4/*.m4: Update. * build-aux/prefix-gnulib-mk: Likewise. * HACKING: Likewise.
# copysign.m4
# serial 1
dnl Copyright (C) 2011-2024 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.
dnl This file is offered as-is, without any warranty.
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])
])