dtc: migrate parser to implicit rules
Cc: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Arnaud Lacombe <lacombar@gmail.com>
diff --git a/scripts/dtc/Makefile b/scripts/dtc/Makefile
index 04a31c1..6d1c6bb 100644
--- a/scripts/dtc/Makefile
+++ b/scripts/dtc/Makefile
@@ -25,31 +25,5 @@
HOSTCFLAGS_dtc-parser.tab.o := $(HOSTCFLAGS_DTC)
# dependencies on generated files need to be listed explicitly
-$(obj)/dtc-parser.tab.o: $(obj)/dtc-parser.tab.c $(obj)/dtc-parser.tab.h
-$(obj)/dtc-lexer.lex.o: $(obj)/dtc-lexer.lex.c $(obj)/dtc-parser.tab.h
+$(obj)/dtc-lexer.lex.o: $(obj)/dtc-parser.tab.h
-targets += dtc-parser.tab.c dtc-lexer.lex.c
-
-clean-files += dtc-parser.tab.h
-
-# GENERATE_PARSER := 1 # Uncomment to rebuild flex/bison output
-
-ifdef GENERATE_PARSER
-
-BISON = bison
-FLEX = flex
-
-quiet_cmd_bison = BISON $@
- cmd_bison = $(BISON) -o$@ -d $<; cp $@ $@_shipped
-quiet_cmd_flex = FLEX $@
- cmd_flex = $(FLEX) -o$@ $<; cp $@ $@_shipped
-
-$(obj)/dtc-parser.tab.c: $(src)/dtc-parser.y FORCE
- $(call if_changed,bison)
-
-$(obj)/dtc-parser.tab.h: $(obj)/dtc-parser.tab.c
-
-$(obj)/dtc-lexer.lex.c: $(src)/dtc-lexer.l FORCE
- $(call if_changed,flex)
-
-endif