build: criu -- Drop redundant phonies

Everytime we build the executable we've to check
all the deps and sources for changes, thus
don't protvide criu/criu on toplevel as
a target file (my bug in 496b51b6).

Instead bring this target as a phony back
but drop phony from criu/Makefile itself,
as it should be from the beginning.

Same time remove unneeded phonies over
the targets which are real files.
Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Tested-by: Tycho Andersen <tycho.andersen@canonical.com>
Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>

Makefile

@@ -116,20 +116,21 @@ PHONY += images
 # the nmk so we can reuse it there.
 criu/%: images/built-in.o
 	$(Q) $(MAKE) -C criu $@
-criu/criu: images/built-in.o
-	$(Q) $(MAKE) -C criu criu
+criu: images/built-in.o
+	$(Q) $(MAKE) -C criu all
+.PHONY: criu
 
 #
 # Libraries next once criu it ready
 # (we might generate headers and such
 # when building criu itself).
-lib/%: criu/criu
+lib/%: criu
 	$(Q) $(MAKE) -C lib $@
-lib: criu/criu
+lib: criu
 	$(Q) $(MAKE) -C lib all
 PHONY += lib
 
-all: criu/criu lib
+all: criu lib
 PHONY += all
 
 clean-built:

criu/Makefile

@@ -89,14 +89,12 @@ config: $(VERSION_HEADER)
 SYSCALL-LIB		:= $(ARCH_DIR)/syscalls.built-in.o
 $(SYSCALL-LIB): config
 	$(Q) $(MAKE) $(call build-as,Makefile.syscalls,$(ARCH_DIR)) all
-PHONY += $(SYSCALL-LIB)
 
 #
 # Architecture dependant part.
 ARCH-LIB		:= $(ARCH_DIR)/crtools.built-in.o
 $(ARCH-LIB): config $(SYSCALL-LIB)
 	$(Q) $(MAKE) $(call build-as,Makefile,$(ARCH_DIR)) $@
-PHONY += $(ARCH-LIB)
 
 #
 # piegen tool needed for PIE code.
@@ -119,7 +117,7 @@ pie/lib.a: $(ARCH-LIB) $(SYSCALL-LIB)
 # PIE code blobs themseves.
 pie: $(piegen-bin) pie/lib.a
 	$(Q) $(MAKE) $(build)=pie all
-PHONY += pie
+.PHONY: pie
 
 #
 # CRIU executable
@@ -136,7 +134,6 @@ built-in.o: pie
 criu: $(PROGRAM-BUILTINS)
 	$(call msg-link, $@)
 	$(Q) $(CC) $(CFLAGS) $^ $(LIBS) $(LDFLAGS) $(GMONLDOPT) -rdynamic -o $@
-PHONY += criu
 
 #
 # Cleanup everything.
@@ -153,6 +150,7 @@ clean:
 	$(Q) $(RM) $(VERSION_HEADER)
 	$(Q) $(RM) $(CONFIG_HEADER)
 	$(Q) $(RM) criu
+.PHONY: clean
 
 UAPI_HEADERS := include/criu-plugin.h include/criu-log.h
 
@@ -162,10 +160,10 @@ install: criu
 	$(Q) install -m 755 criu $(DESTDIR)$(SBINDIR)
 	$(Q) mkdir -p $(DESTDIR)$(INCLUDEDIR)
 	$(Q) install -m 644 $(UAPI_HEADERS) $(DESTDIR)$(INCLUDEDIR)
+.PHONY: install
 
 #
 # Final @all target.
-all: $(PHONY)
+all: criu
 	@true
-
-.PHONY: $(PHONY) clean install
+.PHONY: all