1 # AM_CONDITIONAL -*- Autoconf -*-
3 # Copyright (C) 1997, 2000, 2001, 2003, 2004 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_CONDITIONAL(NAME, SHELL-CONDITION)
23 # -------------------------------------
24 # Define a conditional.
25 AC_DEFUN([AM_CONDITIONAL],
27 ifelse([$1], [TRUE], [AC_FATAL([$0: invalid condition: $1])],
28 [$1], [FALSE], [AC_FATAL([$0: invalid condition: $1])])dnl
38 AC_CONFIG_COMMANDS_PRE(
39 [if test -z "${$1_TRUE}" && test -z "${$1_FALSE}"; then
40 AC_MSG_ERROR([[conditional "$1" was never defined.
41 Usually this means the macro was only invoked conditionally.]])