# func.m4 serial 2

dnl Copyright (C) 2008-2019 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.

# Written by Simon Josefsson

AC_DEFUN([gl_FUNC],

[

  AC_CACHE_CHECK([whether __func__ is available], [gl_cv_var_func],

     AC_COMPILE_IFELSE(

       [AC_LANG_PROGRAM([[]], [[const char *str = __func__;]])],

       [gl_cv_var_func=yes],

       [gl_cv_var_func=no]))

  if test "$gl_cv_var_func" != yes; then

    AC_DEFINE([__func__], ["<unknown function>"],

              [Define as a replacement for the ISO C99 __func__ variable.])

  fi

])