Makefile: don't run "rm" without any files

diff --git a/Makefile b/Makefile
index 731b6a8834834fe6e6d1852e57752ee38d4321b0..c2e3666155cf17634181f7fbc93eca67540f9b0b 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -973,7 +973,8 @@ endif
 
 ifeq ($(COMPUTE_HEADER_DEPENDENCIES),auto)
 dep_check = $(shell $(CC) $(ALL_CFLAGS) \
-       -c -MF /dev/null -MMD -MP -x c /dev/null -o /dev/null 2>&1; \
+       -c -MF /dev/null -MQ /dev/null -MMD -MP \
+       -x c /dev/null -o /dev/null 2>&1; \
        echo $$?)
 ifeq ($(dep_check),0)
 override COMPUTE_HEADER_DEPENDENCIES = yes
@@ -1843,7 +1844,7 @@ $(dep_dirs):
 
 missing_dep_dirs := $(filter-out $(wildcard $(dep_dirs)),$(dep_dirs))
 dep_file = $(dir $@).depend/$(notdir $@).d
-dep_args = -MF $(dep_file) -MMD -MP
+dep_args = -MF $(dep_file) -MQ $@ -MMD -MP
 ifdef CHECK_HEADER_DEPENDENCIES
 $(error cannot compute header dependencies outside a normal build. \
 Please unset CHECK_HEADER_DEPENDENCIES and try again)
@@ -2413,8 +2414,7 @@ clean: profile-clean
                builtin/*.o $(LIB_FILE) $(XDIFF_LIB) $(VCSSVN_LIB)
        $(RM) $(ALL_PROGRAMS) $(SCRIPT_LIB) $(BUILT_INS) git$X
        $(RM) $(TEST_PROGRAMS)
-       $(RM) -r bin-wrappers
-       $(RM) -r $(dep_dirs)
+       $(RM) -r bin-wrappers $(dep_dirs)
        $(RM) -r po/build/
        $(RM) *.spec *.pyc *.pyo */*.pyc */*.pyo common-cmds.h $(ETAGS_TARGET) tags cscope*
        $(RM) -r $(GIT_TARNAME) .doc-tmp-dir