SRCURL="http://prdownloads.sourceforge.net/tcl/tk${TCLVERS}-src.tar.gz"
BUILDDIR="$(pwd)/build/tk${TCLVERS}"
PATCHDIR="$(pwd)/patches"
OUTDIR="$(pwd)/out"
INSTDIR="$(pwd)/inst"
PATCHSCRIPTDIR="$(pwd)/patchscripts"
export SRC SRCURL BUILDDIR PATCHDIR OUTDIR INSTDIR PATCHSCRIPTDIR

# Must be kept in-sync with "../tcl/build.sh"
TCLFOSSILDATE="../tcl/src/tcl${TCLVERS}.tar.gz.date"
export TCLFOSSILDATE

rm -rf 'build' 'out' 'inst'
mkdir 'build' 'out' 'inst' || exit 1

# Determine Tcl version
TCL_VERSION="unknown"
if [ -f "${TCLCONFIGDIR}/tclConfig.sh" ]; then
	source "${TCLCONFIGDIR}/tclConfig.sh"
fi
export TCL_VERSION


if [ ! -f "${SRC}" ]; then
	mkdir 'src' >/dev/null 2>/dev/null

	use_fossil='0'
	if echo "${TCLVERS}" | grep '^cvs_' >/dev/null; then
		use_fossil='1'

		FOSSILTAG=$(echo "${TCLVERS}" | sed 's/^cvs_//g')
		if [ "${FOSSILTAG}" = "HEAD" ]; then
			FOSSILTAG="trunk"
		fi
	elif echo "${TCLVERS}" | grep '^fossil_' >/dev/null; then
		use_fossil='1'

		FOSSILTAG=$(echo "${TCLVERS}" | sed 's/^fossil_//g')
	fi
	export FOSSILTAG

	if [ "${use_fossil}" = "1" ]; then
		(       
			FOSSILDATE="$(cat "${TCLFOSSILDATE}" 2>/dev/null)"

			cd src || exit 1

			workdir="tmp-$$${RANDOM}${RANDOM}${RANDOM}"
			rm -rf "${workdir}"

			mkdir "${workdir}" || exit 1
			cd "${workdir}" || exit 1

			wget -O "tmp-tk.tar.gz" "http://core.tcl.tk/tk/tarball/tk-fossil.tar.gz?uuid=${FOSSILTAG}" || rm -f 'tmp-tk.tar.gz'
			wget -O "tmp-tk.tar.gz" "http://core.tcl.tk/tk/tarball/tk-fossil.tar.gz?uuid=${FOSSILDATE}" || rm -f 'tmp-tk.tar.gz'
			gzip -dc "tmp-tk.tar.gz" | tar -xf -

			mv "tk-fossil" "tk${TCLVERS}"
                        
			tar -cf - "tk${TCLVERS}" | gzip -c > "../../${SRC}"

			cd ..