include/edit_cfg.sh

#!/bin/sh
# $Id: edit_cfg.sh,v 1.16 2022/07/16 18:02:32 tom Exp $
##############################################################################
# Copyright 2020,2022 Thomas E. Dickey                                       #
# Copyright 1998-2001,2017 Free Software Foundation, Inc.                    #
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##############################################################################
#
# Author: Thomas E. Dickey <dickey@clark.net> 1996,1997,2000
#
# Edit the default value of the term.h file based on the autoconf-generated
# values:
#
#	$1 = ncurses_cfg.h
#	$2 = term.h
#
BAK=save$$
TMP=edit$$
trap "rm -f $BAK $TMP; exit 1" 1 2 3 15
trap "rm -f $BAK $TMP" 0
for name in \
	HAVE_TCGETATTR \
	HAVE_TERMIOS_H \
	HAVE_TERMIO_H \
	BROKEN_LINKER
do
	mv "$2" "$BAK"
	if ( grep "[ 	]${name}[ 	]" "$1" >$TMP 2>&1 )
	then
		value=1
	else
		value=0
	fi
	echo '** edit: '$name $value
	sed \
		-e "s@#define ${name}.*\$@#define $name $value@" \
		-e "s@#if $name\$@#if $value /* $name */@" \
		-e "s@#if !$name\$@#if $value /* !$name */@" \
		"$BAK" >"$2"
	if (cmp -s "$2" "$BAK")
	then
		mv "$BAK" "$2"
	else
		rm -f "$BAK"
	fi
done