X-Git-Url: http://plrg.eecs.uci.edu/git/?a=blobdiff_plain;f=Makefile.rules;h=9152f8edc60327c5c5bc8ff06740b9e2f8a50263;hb=e0f9ac6d45d2e6d66e5cc9dd1e56e4bbefb24efe;hp=0787891f7a435c2775c169a53cc836b908013e96;hpb=876dc577d57949b5ede0615cde6ad1ed94a5eeef;p=oota-llvm.git

diff --git a/Makefile.rules b/Makefile.rules
index 0787891f7a4..9152f8edc60 100644
--- a/Makefile.rules
+++ b/Makefile.rules
@@ -550,7 +550,7 @@ endif
 # Create a TAGS database for emacs
 #------------------------------------------------------------------------
 
-ifdef ETAGS
+ifneq ($(ETAGS),false)
 ifeq ($(LEVEL), .)
 SRCDIRS := $(wildcard $(SourceDir)/include $(SourceDir)/lib $(SourceDir)/tools)
 
@@ -729,7 +729,7 @@ YACC_OUTPUT = $(addprefix $(YACC_FILES:%.y=%), .h .cpp .output)
 	@$(DATE) > $@
 
 # To create postscript files from dot files...
-ifdef DOT
+ifneq ($(DOT),false)
 %.ps: %.dot
 	${DOT} -Tps < $< > $@
 else