Mercurial > gnulib
view m4/ldexpf.m4 @ 40057:b06060465f09
maint: Run 'make update-copyright'
author | Paul Eggert <eggert@cs.ucla.edu> |
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date | Tue, 01 Jan 2019 00:25:11 +0100 |
parents | 10eb9086bea0 |
children |
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# ldexpf.m4 serial 2 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_LDEXPF], [ AC_REQUIRE([gl_MATH_H_DEFAULTS]) AC_REQUIRE([gl_FUNC_LDEXP]) dnl Persuade glibc <math.h> to declare ldexpf(). AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) dnl Test whether ldexpf() exists. We cannot assume that ldexpf(), if it dnl exists, is defined in the same library as ldexp(). This is not the case dnl on FreeBSD, NetBSD, OpenBSD. gl_MATHFUNC([ldexpf], [float], [(float, int)]) if test $gl_cv_func_ldexpf_no_libm = no \ && test $gl_cv_func_ldexpf_in_libm = no; then HAVE_LDEXPF=0 LDEXPF_LIBM="$LDEXP_LIBM" fi AC_SUBST([LDEXPF_LIBM]) ])