1# func.m4 serial 2
2dnl Copyright (C) 2008-2020 Free Software Foundation, Inc.
3dnl This file is free software; the Free Software Foundation
4dnl gives unlimited permission to copy and/or distribute it,
5dnl with or without modifications, as long as this notice is preserved.
6
7# Written by Simon Josefsson
8
9AC_DEFUN([gl_FUNC],
10[
11  AC_CACHE_CHECK([whether __func__ is available], [gl_cv_var_func],
12     AC_COMPILE_IFELSE(
13       [AC_LANG_PROGRAM([[]], [[const char *str = __func__;]])],
14       [gl_cv_var_func=yes],
15       [gl_cv_var_func=no]))
16  if test "$gl_cv_var_func" != yes; then
17    AC_DEFINE([__func__], ["<unknown function>"],
18              [Define as a replacement for the ISO C99 __func__ variable.])
19  fi
20])
21