Mercurial > gnulib
view m4/copysignl.m4 @ 36940:c741bc27922a
maint: update all copyright year number ranges
Run "make update-copyright". Compare to commit 1602f0a from last year.
Signed-off-by: Eric Blake <eblake@redhat.com>
author | Eric Blake <eblake@redhat.com> |
---|---|
date | Tue, 01 Jan 2013 00:50:58 +0000 |
parents | c3c446722afe |
children | 344018b6e5d7 |
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# copysignl.m4 serial 3 dnl Copyright (C) 2011-2013 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_COPYSIGNL], [ AC_REQUIRE([gl_MATH_H_DEFAULTS]) AC_REQUIRE([gl_LONG_DOUBLE_VS_DOUBLE]) dnl Persuade glibc <math.h> to declare copysignl(). AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) dnl Determine COPYSIGNL_LIBM. gl_MATHFUNC([copysignl], [long double], [(long double, long double)]) if test $gl_cv_func_copysignl_no_libm = no \ && test $gl_cv_func_copysignl_in_libm = no; then HAVE_COPYSIGNL=0 if test $HAVE_SAME_LONG_DOUBLE_AS_DOUBLE = 1; then AC_REQUIRE([gl_FUNC_COPYSIGN]) COPYSIGNL_LIBM="$COPYSIGN_LIBM" else COPYSIGNL_LIBM= fi fi AC_SUBST([COPYSIGNL_LIBM]) ])