# tan.m4 serial 1 dnl Copyright (C) 2011-2015 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_TAN], [ dnl Determine TAN_LIBM. gl_COMMON_DOUBLE_MATHFUNC([tan]) ])