2 dnl Copyright (C) 2011-2012 Free Software Foundation, Inc.
3 dnl This file is free software; the Free Software Foundation
4 dnl gives unlimited permission to copy and/or distribute it,
5 dnl with or without modifications, as long as this notice is preserved.
7 AC_DEFUN([gl_FUNC_TANHF],
9 AC_REQUIRE([gl_MATH_H_DEFAULTS])
10 AC_REQUIRE([gl_FUNC_TANH])
12 dnl Test whether tanhf() exists. Assume that tanhf(), if it exists, is
13 dnl defined in the same library as tanh().
15 LIBS="$LIBS $TANH_LIBM"
16 AC_CHECK_FUNCS([tanhf])
18 if test $ac_cv_func_tanhf = yes; then
19 TANHF_LIBM="$TANH_LIBM"
22 TANHF_LIBM="$TANH_LIBM"
24 AC_SUBST([TANHF_LIBM])