diff --git a/ChangeLog b/ChangeLog
index 5fae6d3fe6..60e7311ed0 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,13 @@
+Sun Dec 30 10:54:49 2007  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* configure.in: rm largefile.h.
+	
+	* common.mk: clean golf, conf*, preludes, and so on.
+	
+	* enc/depend: silent and ignore error for rm.
+
+	* enc/Makefile.in: should define prefix and exec_prefix.
+
 Sun Dec 30 06:31:11 2007  NAKAMURA Usaku  <usa@ruby-lang.org>
 
 	* encoding.c (Init_encoding): register Windows-31J and its alias.
diff --git a/common.mk b/common.mk
index 439da73db7..e6aa9ff126 100644
--- a/common.mk
+++ b/common.mk
@@ -304,7 +304,7 @@ clean: clean-ext clean-local clean-enc
 clean-local::
 	@$(RM) $(OBJS) $(MINIOBJS) $(MAINOBJ) $(WINMAINOBJ) $(LIBRUBY_A) $(LIBRUBY_SO) $(LIBRUBY) $(LIBRUBY_ALIASES)
 	@$(RM) $(PROGRAM) $(WPROGRAM) miniruby$(EXEEXT) dmyext.$(OBJEXT) $(ARCHFILE) .*.time
-	@$(RM) *.inc
+	@$(RM) *.inc $(GOLFOBJS)
 clean-ext:
 	@-$(MINIRUBY) $(srcdir)/ext/extmk.rb $(EXTMK_ARGS) clean
 clean-enc:
@@ -312,9 +312,10 @@ clean-enc:
 
 distclean: distclean-ext distclean-local distclean-enc
 distclean-local:: clean-local
-	@$(RM) $(MKFILES) config.h rbconfig.rb
-	@$(RM) config.cache config.log config.status
+	@$(RM) $(MKFILES) config.h rbconfig.rb yasmdata.rb
+	@$(RM) config.cache config.log config.status config.status.lineno $(PRELUDES)
 	@$(RM) *~ *.bak *.stackdump core *.core gmon.out y.tab.c y.output $(PREP)
+	@-$(RM) ext/ripper/y.output
 distclean-ext:
 	@-$(MINIRUBY) $(srcdir)/ext/extmk.rb $(EXTMK_ARGS) distclean
 #	-$(RM) $(INSTALLED_LIST) $(arch_hdrdir)/ruby/config.h
@@ -324,7 +325,7 @@ distclean-enc: clean-enc
 
 realclean:: realclean-ext realclean-local realclean-enc
 realclean-local:: distclean-local
-	@$(RM) parse.c lex.c
+	@$(RM) parse.c lex.c revision.h
 realclean-ext::
 	@-$(MINIRUBY) $(srcdir)/ext/extmk.rb $(EXTMK_ARGS) realclean
 realclean-enc:: distclean-enc
@@ -676,6 +677,7 @@ prereq: incs srcs preludes
 
 preludes: {$(VPATH)}miniprelude.c
 preludes: {$(srcdir)}golf_prelude.c
+PRELUDES = prelude.c miniprelude.c golf_prelude.c
 
 docs:
 	$(BASERUBY) -I$(srcdir) $(srcdir)/tool/makedocs.rb $(INSNS2VMOPT)
diff --git a/configure.in b/configure.in
index 82f85844e3..efc5dc5b77 100644
--- a/configure.in
+++ b/configure.in
@@ -1788,6 +1788,7 @@ else
   tr -d '\015' < confdefs.h > "${config_h}"
 fi
 tr -d '\015' < largefile.h > confdefs.h
+rm largefile.h
 
 BUILTIN_ENCS=["`sed -n -e '/^BUILTIN_ENCS[ 	]*=/{' \
 	-e s/// -e :l -e '/\\\\$/N' -e 's/\\\\\\n/ /' -e 't l' -e p \
diff --git a/enc/Makefile.in b/enc/Makefile.in
index b9917a12ae..082be84c86 100644
--- a/enc/Makefile.in
+++ b/enc/Makefile.in
@@ -1,5 +1,7 @@
 encsrcdir = @srcdir@
 topdir = .
+prefix = @prefix@
+exec_prefix = @exec_prefix@
 libdir = @libdir@
 top_srcdir = $(encsrcdir:/enc=)
 srcdir = $(top_srcdir)
@@ -45,4 +47,4 @@ all:
 clean:
 
 distclean: clean
-	$(RM) enc.mk
+	@$(RM) enc.mk
diff --git a/enc/depend b/enc/depend
index 099d827ed5..a4040f46c3 100644
--- a/enc/depend
+++ b/enc/depend
@@ -55,9 +55,4 @@ enc/<%=e%>.$(OBJEXT): $(srcdir)/enc/<%=e%>.c
 % end
 
 clean:
-	$(RM) $(ENCSOS)
-	$(RM) $(ENCDEFS)
-	$(RM) $(ENCOBJS)
-	$(RM) $(TRANSSOS)
-	$(RM) $(TRANSDEFS)
-	$(RM) $(TRANSOBJS)
+        @$(RM) $(ENCSOS) $(ENCDEFS) $(ENCOBJS) $(TRANSSOS) $(TRANSDEFS) $(TRANSOBJS)