* common.mk, ext/extmkf.rb: always make encdb.h.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@15310 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 7 insertions, 3 deletions

diff --git a/common.mk b/common.mk
index 764a3bbed8..7bf6c162ab 100644
--- a/common.mk
+++ b/common.mk
@@ -700,14 +700,18 @@ vm.inc: $(srcdir)/template/vm.inc.tmpl
 
 srcs: {$(VPATH)}parse.c {$(VPATH)}lex.c $(srcdir)/ext/ripper/ripper.c
 
-incs: $(INSNS) {$(VPATH)}node_name.inc {$(VPATH)}encdb.h $(srcdir)/revision.h
+incs: $(INSNS) {$(VPATH)}node_name.inc $(srcdir)/revision.h
 
 node_name.inc: {$(VPATH)}node.h
 	$(BASERUBY) -n $(srcdir)/tool/node_name.rb $? > $@
 
-encdb.h: $(srcdir)/enc/make_encdb.rb
+encdb.h.new::
 	$(BASERUBY) $(srcdir)/enc/make_encdb.rb $(srcdir)/enc $@
 
+encdb.h: encdb.h.new
+	$(IFCHANGE) "$@" "$@.new"
+	-@$(RM) "$@.new"
+
 miniprelude.c: $(srcdir)/tool/compile_prelude.rb $(srcdir)/prelude.rb
 	$(BASERUBY) -I$(srcdir) $(srcdir)/tool/compile_prelude.rb $(srcdir)/prelude.rb $@
 
@@ -798,7 +802,7 @@ up:
 	@$(VCS) up "$(srcdir)"
 	-@$(MAKE) $(MFLAGS) REVISION_FORCE=PHONY "$(srcdir)/revision.h"
 
-help:
+help: PHONY
 	@echo "                Makefile of Ruby"
 	@echo ""
 	@echo "targets:"