* lex.c: renamed from lex.c.blt.

* Makefile.in (lex.c): use find command to check mtime.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@13876 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

3 files changed, 17 insertions, 6 deletions

diff --git a/ChangeLog b/ChangeLog
index aa8638dde2..a164688547 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+Sun Nov 11 16:54:25 2007  Tanaka Akira  <[email protected]>
+
+	* lex.c: renamed from lex.c.blt.
+
+	* Makefile.in (lex.c): use find command to check mtime.
+
 Sun Nov 11 05:34:13 2007  Eric Hodel  <[email protected]>
 
 	* bin/gem: Add forgotten gem command.
diff --git a/Makefile.in b/Makefile.in
index 30c82771db..8287dc1c67 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -161,13 +161,18 @@ config.status:	$(srcdir)/configure
 $(srcdir)/configure: $(srcdir)/configure.in
 		cd $(srcdir) && $(AUTOCONF)
 
+# Things which should be considered:
+# * with gperf v.s. without gperf
+# * ./configure v.s. ../ruby/configure
+# * GNU make v.s. HP-UX make	# HP-UX make invokes the action if lex.c and keywords has same mtime.
 lex.c: keywords
-	( \
-	  gperf [email protected] -C -p -j1 -i 1 -g -o -t -N rb_reserved_word -k1,3,$$ $? && \
-	  cp [email protected] $@ && \
-	  mv [email protected] "$(srcdir)/[email protected]" \
-	) || \
-	cp "$(srcdir)/[email protected]" $@
+	if test -f $@ && test -z "`find $? -newer $@ -print`"; then \
+	  touch $@; \
+	elif test -f $(srcdir)/lex.c && test -z "`find $? -newer $(srcdir)/lex.c -print`"; then \
+	  cp $(srcdir)/lex.c $@; \
+	else \
+	  gperf [email protected] -C -p -j1 -i 1 -g -o -t -N rb_reserved_word -k1,3,$$ $? && cp [email protected] $@; \
+	fi
 
 .y.c:
 	$(YACC) $(YFLAGS) -o $@ $<
diff --git a/lex.c.blt b/lex.c
index 7292404db3..7292404db3 100644
--- a/lex.c.blt
+++ b/lex.c