#!/bin/sh

# This is designed to compile a single package to a single binary
# so it makes some assumptions about things to simplify config
# to output a single binary (in a tarball) just use -o file
# use --docker to output a tarball for input to docker build -

set -e

proc usage {
	echo "Usage: -o file"
	exit 1
}

test $Argc = 0 && usage

while [ $# -gt 0 ]
{
	setvar flag = "$1"
	case (flag) {
	-o {
		test $Argc -eq 1 && usage
		setvar out = "$2"
		mkdir -p $(dirname $2)
		shift
	}
	-l* {
		setvar LIBS = ""$LIBS $1""
		shift
	}
	* {
		echo "Unknown option $1"
		exit 1
	}
}
	shift
}

test -z $out && usage

setvar package = $(basename "$out")

setvar dir = ""/src/$package""

mkdir -p $dir

# untar input
tar xf - -C $dir

shell {
	cd $dir
	setvar CFILES = $(find . -name '*.c')
	cc -static -O2 -Wall -Werror -o ../../$out $CFILES $LIBS
}

tar cf - $out
exit 0