| 1 | # func.m4 serial 2 |
| 2 | dnl Copyright (C) 2008-2013 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. |
| 6 | |
| 7 | # Written by Simon Josefsson |
| 8 | |
| 9 | AC_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 | ]) |