Update to system where library info is all in library file

Makefile

@@ -1,26 +1,35 @@
 .POSIX:
 SCHEME=chibi
 LIBRARY=tap
-AUTHORS=Retropikzel
+LIBRARY_FILE=retropikzel/${LIBRARY}.sld
 MAINTAINER=Retropikzel
-VERSION=$$(cat retropikzel/${LIBRARY}/VERSION)
-PKG=retropikzel-${LIBRARY}-${VERSION}.tgz
 TESTFILE=retropikzel/${LIBRARY}/test.scm
 DOCKER_TAG=latest
 
+splitclean=awk -F ':' '{print($$2)}' | tr -d ' '
+VERSION=$$(grep "VERSION:" ${LIBRARY_FILE} | ${splitclean})
+LICENSE=$$(grep "SPDX-License-Identifier:" ${LIBRARY_FILE} | awk -F ":" "{print(\$$2)}" | tr -d ' ')
+DESCRIPTION=$$(grep "DESCRIPTION:" ${LIBRARY_FILE} | awk -F ':' '{print($$2)}' | tr -d ' ')
+ADDITIONAL_LIBRARIES=$$(grep "ADD_LIBRARIES:" ${LIBRARY_FILE} | awk -F ':' '{print($$2)}' | tr -d ' ' || echo "")
+
+PKG=retropikzel-${LIBRARY}-${VERSION}.tgz
+
+debug:
+	echo "${LICENSE}"
+
 all: package
 
-package: retropikzel/${LIBRARY}/LICENSE retropikzel/${LIBRARY}/VERSION retropikzel/${LIBRARY}/DESCRIPTION
+package:
 	snow-chibi package \
 		--always-yes \
-		--version=${VERSION} \
-		--authors=${AUTHORS} \
-		--maintainers=${MAINTAINER} \
-		--license="$$(cat retropikzel/${LIBRARY}/LICENSE)" \
+		--version="${VERSION}" \
+		--authors=Retropikzel \
+		--maintainers=Retropikzel \
+		--license="${LICENSE}" \
 		--doc-from-scribble=1 \
 		--test=${TESTFILE} \
-		--description="$$(head -n1 retropikzel/${LIBRARY}/DESCRIPTION)" \
-		retropikzel/${LIBRARY}.sld
+		--description="${DESCRIPTION}" \
+		${LIBRARY_FILE} ${ADDITIONAL_LIBRARIES}
 
 git-index:
 	snow-chibi git-index ${PKG}