xref: /freebsd/contrib/ncurses/include/MKncurses_def.sh (revision 0b3105a37d7adcadcb720112fed4dc4e8040be99)
1#! /bin/sh
2# $Id: MKncurses_def.sh,v 1.2 2003/10/25 16:19:46 tom Exp $
3##############################################################################
4# Copyright (c) 2000 Free Software Foundation, Inc.                          #
5#                                                                            #
6# Permission is hereby granted, free of charge, to any person obtaining a    #
7# copy of this software and associated documentation files (the "Software"), #
8# to deal in the Software without restriction, including without limitation  #
9# the rights to use, copy, modify, merge, publish, distribute, distribute    #
10# with modifications, sublicense, and/or sell copies of the Software, and to #
11# permit persons to whom the Software is furnished to do so, subject to the  #
12# following conditions:                                                      #
13#                                                                            #
14# The above copyright notice and this permission notice shall be included in #
15# all copies or substantial portions of the Software.                        #
16#                                                                            #
17# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR #
18# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,   #
19# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL    #
20# THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER      #
21# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING    #
22# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER        #
23# DEALINGS IN THE SOFTWARE.                                                  #
24#                                                                            #
25# Except as contained in this notice, the name(s) of the above copyright     #
26# holders shall not be used in advertising or otherwise to promote the sale, #
27# use or other dealings in this Software without prior written               #
28# authorization.                                                             #
29##############################################################################
30#
31# MKncurses_def.sh -- generate fallback definitions for ncurses_cfg.h
32#
33# Author: Thomas E. Dickey 2000
34#
35# Given the choice between constructs such as
36#
37#	#if defined(foo) && foo
38#	#if foo
39#
40# we chose the latter.  It is guaranteed by the language standard, and there
41# appear to be no broken compilers that do not honor that detail.  But some
42# people want to use gcc's -Wundef option (corresponding to one of the less
43# useful features in Watcom's compiler) to check for misspellings.  So we
44# generate a set of fallback definitions to quiet the warnings without making
45# the code ugly.
46#
47DEFS="${1-ncurses_defs}"
48cat <<EOF
49/*
50 * This file is generated by $0
51 */
52
53#ifndef NC_DEFINE_H
54#define NC_DEFINE_H 1
55
56EOF
57
58${AWK-awk} <$DEFS '
59!/^[@#]/ {
60	if ( NF == 1 )
61	{
62		print "#ifndef", $1
63		print "#define", $1, "0"
64		print "#endif"
65		print ""
66	} else if ( NF != 0 ) {
67		print "#ifndef", $1
68		printf "#define"
69		for (n = 1; n <= NF; n++) {
70			printf " %s", $n
71		}
72		print ""
73		print "#endif"
74		print ""
75	}
76}
77END	{
78print "#endif /* NC_DEFINE_H */"
79	}
80'
81