[XEN PATCH v2 12/29] tools/xentop: rework makefile

[Anthony PERARD <anthony.perard@xxxxxxxxxx>]

Add "xentop" to "TARGETS" because this variable will be useful later.

Always define all the targets, even when configured with
--disable-monitor, instead don't visit the subdirectory.
This mean xentop/ isn't visited anymore during "make clean" that's how
most other subdirs in the tools/ works.

Also add missing "xentop" rules. It only works without it because we
still have make's built-ins rules and variables, but fix this to not
have to rely on them.

Use $(TARGETS) with $(INSTALL_PROG), and thus install into the
directory rather than spelling the program name.

In the "clean" rule, use $(RM) and remove all "*.o" instead of just
one object.

Signed-off-by: Anthony PERARD <anthony.perard@xxxxxxxxxx>
---

Notes:
    v2:
    - use $(RM) in clean.
    - remove all *.o instead of just one object in "clean" rule.
    - in "install" rule, make use of $(TARGETS). install into a dir rather
      than to a specific path, in case there's more targets.

 tools/Makefile        |  2 +-
 tools/xentop/Makefile | 21 +++++++++------------
 2 files changed, 10 insertions(+), 13 deletions(-)

diff --git a/tools/Makefile b/tools/Makefile
index 79b4c7e3de..0c1d8b64a4 100644
--- a/tools/Makefile
+++ b/tools/Makefile
@@ -17,7 +17,7 @@ SUBDIRS-$(CONFIG_XCUTILS) += xcutils
 SUBDIRS-$(CONFIG_X86) += firmware
 SUBDIRS-y += console
 SUBDIRS-y += xenmon
-SUBDIRS-y += xentop
+SUBDIRS-$(XENSTAT_XENTOP) += xentop
 SUBDIRS-y += libfsimage
 SUBDIRS-$(CONFIG_Linux) += vchan
 
diff --git a/tools/xentop/Makefile b/tools/xentop/Makefile
index 0034114684..7bd96f34d5 100644
--- a/tools/xentop/Makefile
+++ b/tools/xentop/Makefile
@@ -13,36 +13,33 @@
 XEN_ROOT=$(CURDIR)/../..
 include $(XEN_ROOT)/tools/Rules.mk
 
-ifneq ($(XENSTAT_XENTOP),y)
-.PHONY: all install xentop uninstall
-all install xentop uninstall:
-else
-
 CFLAGS += -DGCC_PRINTF -Werror $(CFLAGS_libxenstat)
 LDLIBS += $(LDLIBS_libxenstat) $(CURSES_LIBS) $(TINFO_LIBS) $(SOCKET_LIBS) -lm
 CFLAGS += -DHOST_$(XEN_OS)
 
 # Include configure output (config.h)
 CFLAGS += -include $(XEN_ROOT)/tools/config.h
-LDFLAGS += $(APPEND_LDFLAGS)
+
+TARGETS := xentop
 
 .PHONY: all
-all: xentop
+all: $(TARGETS)
+
+xentop: xentop.o
+       $(CC) $(LDFLAGS) -o $@ $< $(LDLIBS) $(APPEND_LDFLAGS)
 
 .PHONY: install
-install: xentop
+install: all
        $(INSTALL_DIR) $(DESTDIR)$(sbindir)
-       $(INSTALL_PROG) xentop $(DESTDIR)$(sbindir)/xentop
+       $(INSTALL_PROG) $(TARGETS) $(DESTDIR)$(sbindir)
 
 .PHONY: uninstall
 uninstall:
        rm -f $(DESTDIR)$(sbindir)/xentop
 
-endif
-
 .PHONY: clean
 clean:
-       rm -f xentop xentop.o $(DEPS_RM)
+       $(RM) *.o $(TARGETS) $(DEPS_RM)
 
 .PHONY: distclean
 distclean: clean
-- 
Anthony PERARD