xfstests: fix depend targets

[xfstests-dev.git] / include / buildrules

diff --git a/include/buildrules b/include/buildrules
index 5388210e4a60fe08cc4ae8238b4f84c718181306..d8ef6b1eae50e3bf1ed4a7efe4c1e1bd7d1125c5 100644 (file)
--- a/include/buildrules
+++ b/include/buildrules
@@ -8,7 +8,7 @@ include $(TOPDIR)/include/builddefs
 
 clean clobber : $(addsuffix -clean,$(SUBDIRS))
        $(Q)rm -f $(DIRT)
-       $(Q)rm -fr .libs .dep
+       $(Q)rm -fr .libs .ltdep .dep
 
 %-clean:
        @echo "Cleaning $*"
@@ -75,11 +75,17 @@ $(_FORCE):
 
 MAKEDEP := $(MAKEDEPEND) $(CFLAGS)
 
-ltdepend: $(CFILES) $(HFILES)
-       @echo "    [DEP]"
-       $(Q)$(MAKEDEP) $(CFILES) | $(SED) -e 's,^\([^:]*\)\.o,\1.lo,' > .dep
+ltdepend: .ltdep
+
+.ltdep: $(CFILES) $(HFILES)
+       @echo "    [LTDEP]"
+       $(Q)[ -n "$(CFILES)" ] && \
+           $(MAKEDEP) $(CFILES) | $(SED) -e 's,^\([^:]*\)\.o,\1.lo,' > .ltdep
+
+depend: .dep
 
-depend: $(CFILES) $(HFILES)
+.dep: $(CFILES) $(HFILES)
        @echo "    [DEP]"
-       $(Q)$(MAKEDEP) $(CFILES) | $(SED) -e 's,^\([^:]*\)\.o,\1,' > .dep
+       $(Q)[ -n "$(CFILES)" ] && \
+           $(MAKEDEP) $(CFILES) | $(SED) -e 's,^\([^:]*\)\.o,\1,' > .dep