Mercurial > gnulib
view m4/tanhf.m4 @ 40145:5b5be594d7f9
localename tests: Fix test failure on Android.
* modules/localename-tests (Depends-on): Add 'setlocale'.
author | Bruno Haible <bruno@clisp.org> |
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date | Sat, 26 Jan 2019 23:40:44 +0100 |
parents | b06060465f09 |
children |
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# tanhf.m4 serial 3 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_TANHF], [ AC_REQUIRE([gl_MATH_H_DEFAULTS]) AC_REQUIRE([gl_FUNC_TANH]) dnl Persuade glibc <math.h> to declare tanhf(). AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) dnl Test whether tanhf() exists. Assume that tanhf(), if it exists, is dnl defined in the same library as tanh(). save_LIBS="$LIBS" LIBS="$LIBS $TANH_LIBM" AC_CHECK_FUNCS([tanhf]) LIBS="$save_LIBS" if test $ac_cv_func_tanhf = yes; then TANHF_LIBM="$TANH_LIBM" else HAVE_TANHF=0 dnl If the function is declared but does not appear to exist, it may be dnl defined as an inline function. In order to avoid a conflict, we have dnl to define rpl_tanhf, not tanhf. AC_CHECK_DECLS([tanhf], [REPLACE_TANHF=1], , [[#include <math.h>]]) TANHF_LIBM="$TANH_LIBM" fi AC_SUBST([TANHF_LIBM]) ])