1 # Helper functions for option handling. -*- Autoconf -*-
3 # Copyright 2001, 2002 Free Software Foundation, Inc.
5 # This program is free software; you can redistribute it and/or modify
6 # it under the terms of the GNU General Public License as published by
7 # the Free Software Foundation; either version 2, or (at your option)
10 # This program is distributed in the hope that it will be useful,
11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 # GNU General Public License for more details.
15 # You should have received a copy of the GNU General Public License
16 # along with this program; if not, write to the Free Software
17 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
22 # _AM_MANGLE_OPTION(NAME)
23 # -----------------------
24 AC_DEFUN([_AM_MANGLE_OPTION],
25 [[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
27 # _AM_SET_OPTION(NAME)
28 # ------------------------------
29 # Set option NAME. Presently that only means defining a flag for this option.
30 AC_DEFUN([_AM_SET_OPTION],
31 [m4_define(_AM_MANGLE_OPTION([$1]), 1)])
33 # _AM_SET_OPTIONS(OPTIONS)
34 # ----------------------------------
35 # OPTIONS is a space-separated list of Automake options.
36 AC_DEFUN([_AM_SET_OPTIONS],
37 [AC_FOREACH([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
39 # _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
40 # -------------------------------------------
41 # Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
42 AC_DEFUN([_AM_IF_OPTION],
43 [m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])