* common.mk (revision.h): split the temporary file. [ruby-core:17407]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8@17590 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

2 files changed, 10 insertions, 4 deletions

diff --git a/ChangeLog b/ChangeLog
index 8ab825e7f7..2f49b65c13 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Fri Jun 27 00:34:50 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* common.mk (revision.h): split the temporary file.  [ruby-core:17407]
+
 Fri Jun 27 00:00:14 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* ruby.c (set_arg0, ruby_prog_init): freeze $0.  a patch from Keita
diff --git a/common.mk b/common.mk
index b7899e2b76..93c0c78f47 100644
--- a/common.mk
+++ b/common.mk
@@ -471,11 +471,13 @@ version.$(OBJEXT): {$(VPATH)}version.c {$(VPATH)}ruby.h config.h \
 dist: $(PROGRAM)
 	$(RUNRUBY) $(srcdir)/distruby.rb
 
-{$(VPATH)}revision.h: revision.h.tmp
-	@if [ -f $(srcdir)/revision.h ] && { [ ! -s $? ] || cmp $(srcdir)/revision.h $? >/dev/null; }; then \
-	  $(RM) $?; \
+{$(VPATH)}revision.h:
+	@$(MAKE) revision.h.tmp
+	@if [ -f $(srcdir)/revision.h ] && \
+	    { [ ! -s revision.h.tmp ] || cmp $(srcdir)/revision.h revision.h.tmp >/dev/null; }; then \
+	  $(RM) revision.h.tmp; \
 	else \
-	  mv -f $? $(srcdir)/revision.h; \
+	  mv -f revision.h.tmp $(srcdir)/revision.h; \
 	fi
 
 revision.h.tmp: $(REVISION_FORCE)