Checkpoint in copying data from one tileset to another

Makefile

@@ -1,7 +1,7 @@
 PREFIX ?= /usr/local
 MANDIR ?= /usr/share/man/man1/
 
-all: tippecanoe enumerate decode
+all: tippecanoe enumerate decode tile-join
 
 docs: man/tippecanoe.1
 
@@ -33,6 +33,9 @@ enumerate: enumerate.o
 decode: decode.o vector_tile.pb.o projection.o
 	g++ $(PG) $(LIBS) -O3 -g -Wall -o $@ $^ -lm -lz -lprotobuf-lite -lsqlite3
 
+tile-join: tile-join.o vector_tile.pb.o projection.o pool.o
+	g++ $(PG) $(LIBS) -O3 -g -Wall -o $@ $^ -lm -lz -lprotobuf-lite -lsqlite3
+
 libjsonpull.a: jsonpull.o
 	ar rc $@ $^
 	ranlib $@