* fix dependencies between target (otherwise compilation fails with "make -j3")

--- a/Makefile
+++ b/Makefile
@@ -200,7 +200,7 @@ cleanall: clean
 doc: 
 	$(PRINTMAN) $(TXTFILES) $(DOCFILES)
 
-install:
+install: bin/qconvex bin/qdelaunay bin/qhalf bin/qhull bin/qvoronoi bin/rbox
 	mkdir -p $(BINDIR)
 	mkdir -p $(DOCDIR)
 	mkdir -p $(INCDIR)/libqhull
@@ -240,7 +240,7 @@ printc:
 printf:
 	$(PRINTC) $(FILES)
 
-qtest:
+qtest: bin/testqset bin/rbox
 	@echo ============================================
 	@echo == make qtest ==============================
 	@echo ============================================
@@ -262,7 +262,7 @@ qtest:
 	@echo ============================================
 	-bin/rbox D4 | bin/qhull Tv
 	
-test: qtest
+test: qtest  bin/qconvex bin/qdelaunay bin/qhalf bin/qhull bin/qvoronoi bin/rbox
 	@echo ============================================
 	@echo == make test ===============================
 	@echo ============================================
@@ -319,7 +319,7 @@ testall: test
 	-eg/q_egtest
 	-eg/q_test
 
-qconvex-prompt:
+qconvex-prompt: bin/qconvex bin/rbox
 	bin/qconvex
 	@echo
 	@echo ============================================
