[RFCv2 12/13] dtc: migrate parser to implicit rules

Arnaud Lacombe
2011-05-23T08:11:15Z

Cc: David Gibson <david@gibson.dropbear.id.au>
---
scripts/dtc/Makefile | 29 ++---------------------------
1 files changed, 2 insertions(+), 27 deletions(-)

diff --git a/scripts/dtc/Makefile b/scripts/dtc/Makefile
index 04a31c1..e448fb1 100644
--- a/scripts/dtc/Makefile
+++ b/scripts/dtc/Makefile
@@ -5,7 +5,7 @@ always := $(hostprogs-y)

dtc-objs := dtc.o flattree.o fstree.o data.o livetree.o treesource.o \
srcpos.o checks.o util.o
-dtc-objs += dtc-lexer.lex.o dtc-parser.tab.o
+dtc-objs += dtc-parser.tab.o

# Source files need to get at the userspace version of libfdt_env.h to compile

@@ -21,35 +21,10 @@ HOSTCFLAGS_srcpos.o := $(HOSTCFLAGS_DTC)
HOSTCFLAGS_treesource.o := $(HOSTCFLAGS_DTC)
HOSTCFLAGS_util.o := $(HOSTCFLAGS_DTC)

-HOSTCFLAGS_dtc-lexer.lex.o := $(HOSTCFLAGS_DTC)
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-parser.tab.o: $(obj)/dtc-lexer.lex.c

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
--
1.7.3.4.574.g608b.dirty