#!/bin/bash
#
# This checks that each header file can be compiled on its own.
#

sh_cc=
sh_dir=
sh_base=${0##*/}
sh_tmpfile=/tmp/$sh_base-$USER.$$.c
sh_outfile=$sh_tmpfile.out

cd ${0%/*}
sh_dir=${PWD%/*}

function fail
{
	local msg="$*"
	[[ -z "$msg" ]] && msg="failed"
	echo "$sh_base: $msg" >&2
	exit 1
}

function check_file
{
	local file res
	file=$1

	cat > $sh_tmpfile <<EOF
#include "$sh_dir/$file"

int
main(void)
{
	return (0);
}
EOF
	[[ $? -eq 0 ]] || fail "can't write to temporary file"
	$sh_cc -o $sh_outfile $sh_tmpfile
	res=$?
	rm $sh_tmpfile $sh_outfile
	[[ $? -eq 0 ]] || fail "$file is not clean"
}

if [[ $# -lt 2 ]]; then
	echo "$sh_base: <compiler> <file 0> [file 1] [file n]"
fi
sh_cc=$1
shift

for file in "$@"; do
	check_file $file
done