#!/bin/sh
#
# This file is in te public domain.
#
# This script creates a C include file from of command line arguments.  When
# invoked as conf-sh dir/conf.h a=1 -Db=c d e=f -Dg, it creates a file named
# conf.h in dir, containing the following lines:
#
# #ifdef __DIR_CONF_H
# #define __DIR_CONF_H 1
#
# #define a	1
# #define b	c
# #define d
# #define e	f
# #define g
#
# #endif
#
# This is basically a trick to get rid of a lot of target-specific CFLAGS
# with lots of -D options, by folding them into a single header file.

fil=$1 ; shift
if [ x"$fil" = x ] 
then
	echo Usage: $0 file [macro[=value]]...
	exit 1
fi
exec >$fil

nam=`echo __$fil | tr a-z A-Z | sed -e 's/[^A-Z]/_/g'`
cat <<EOF

/* This is an automatically generated file. */

#ifndef $nam
#define $nam $nam

EOF

while [ x"$1" != x ]
do
	echo "#define $1" | sed -e 's/ -D/ /' -e 's/=/	/'
	shift
done

cat <<EOF

#endif	/* $nam */

EOF