Add make rules for building release tar files for console and controller

The build is done in a separate, clean, directory. This is freshly checked
out from Git, and then in this directory controller, console, or both
are built. The result is stored in a tar file in the original directory from
where make is invoked.

Makefile

+.PHONY: clean all rel_mktemp_dir
+
+CONTROLLER_REL_TAR:=$(CURDIR)/controller_$(shell date +%Y%m%d%H%M).tar.gz
+CONSOLE_REL_TAR:=$(CURDIR)/console_$(shell date +%Y%m%d%H%M).tar.gz
 
 all:
 	$(MAKE) -C common/utils
@@ -6,6 +10,17 @@ all:
 	cd libnova-0.13.0 ; ./configure -enable-static -disable-shared --prefix=${CURDIR} ; make; make install
 	$(MAKE) -C console
 
+controller:
+	$(MAKE) -C common/utils
+	$(MAKE) -C common/trace
+	$(MAKE) -C controller
+
+console:
+	$(MAKE) -C common/utils
+	$(MAKE) -C common/trace
+	cd libnova-0.13.0 ; ./configure -enable-static -disable-shared --prefix=${CURDIR} ; make; make install
+	$(MAKE) -C console
+
 clean:
 	$(MAKE) -C common/utils clean
 	$(MAKE) -C common/trace clean
@@ -13,4 +28,55 @@ clean:
 	cd libnova-0.13.0 ; make clean || true
 	$(MAKE) -C console clean
 
+# Rules for building a release
+
+rel_mktemp_dir:
+	$(eval REL_BUILD_DIR:=$(shell mktemp -d /tmp/dt_ctrl_XXXXXX))
+	@echo "****** Building code in dir: $(REL_BUILD_DIR)"
+
+rel_clone_dir: rel_mktemp_dir
+	@echo "****** Creating clean checkout of source"; \
+	git clone . $(REL_BUILD_DIR) >/dev/null; \
+	echo "       Done"
+
+rel_utils: rel_clone_dir
+	@echo "****** Building common/utils"; \
+	$(MAKE) -C $(REL_BUILD_DIR)/common/utils >/dev/null; \
+	echo "       Done"
+
+rel_trace: rel_utils
+	@echo "****** Building common/trace"; \
+	$(MAKE) -C $(REL_BUILD_DIR)/common/trace >/dev/null; \
+	echo "       Done"
+
+
+rel_ctrl: rel_trace
+	@echo "****** Building controller"; \
+	$(MAKE) -C $(REL_BUILD_DIR)/controller >/dev/null; \
+	echo "       Done"
+
+
+rel_libnova: rel_clone_dir
+	@echo "****** Building libnova"; \
+	(cd $(REL_BUILD_DIR)/libnova-0.13.0 ; ./configure -enable-static -disable-shared --prefix=$(REL_BUILD_DIR); make; make install) >/dev/null; \
+	echo "       Done"
+
+
+rel_cons: rel_trace rel_libnova
+	@echo "****** Building console"; \
+	$(MAKE) -C $(REL_BUILD_DIR)/console >/dev/null; \
+	echo "       Done"
+
+
+$(CONSOLE_REL_TAR): rel_cons
+	@tar -C $(REL_BUILD_DIR)/release -zhcf $@ console
+	@echo "****** Created console release file $@"
+
+
+$(CONTROLLER_REL_TAR): rel_ctrl
+	@tar -C $(REL_BUILD_DIR)/release -zhcf $@ controller
+	@echo "****** Created controller release file $@"
 
+release: $(CONSOLE_REL_TAR) $(CONTROLLER_REL_TAR)
+release_console: $(CONSOLE_REL_TAR)
+release_controller: $(CONTROLLER_REL_TAR)