diff --git a/Makefile b/Makefile
index 8771305..a39977f 100644
--- a/Makefile
+++ b/Makefile
@@ -5,10 +5,19 @@ include Makefile_options_$(OS)
 SUBDIRS := core
 SUBDIRS += $(PACKAGES)
 
-all:
-	@echo ">>> Try to compile Torch <<<"
-	@for subdir in ${SUBDIRS} ; do ( cd $$subdir ; ${MAKE} $@) || exit 10 ; done
-	@echo ">> !!! Ok !!! <<<"
+.PHONY: subdirs $(SUBDIRS)
+
+core: $(PACKAGES)
+
+all: subdirs
+
+subdirs: $(SUBDIRS)
+
+$(SUBDIRS):
+	@\mkdir -p $(OBJS_DIR)
+	@\mkdir -p $(LIBS_DIR)
+	$(MAKE) -C $@ depend
+	$(MAKE) -C $@
 
 clean:
 	@echo ">>> Atomise all <<<"
diff --git a/core/Makefile b/core/Makefile
index 588d366..42b8a11 100644
--- a/core/Makefile
+++ b/core/Makefile
@@ -11,6 +11,7 @@ all:	$(LIBTORCH)
 $(LIBTORCH): $(OBJS)
 	@echo "Archiving..."
 	@$(AR) $(LIBTORCH) $(OBJS)
+	@ranlib $(LIBTORCH)
 
 $(OBJS_DIR)/%.o: %.cc
 	@echo $<