From 7a0f0e258b6dbeca3a9e357c22472cdd9f210b2b Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Mon, 25 Apr 2016 07:56:06 +0000
Subject: ripper: fix ripper.E

* ext/ripper/depend (ripper.E): add missing $(INCFLAGS).

* ext/ripper/tools/strip.rb: insert an empty line for blank or
  line directive lines.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@54761 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 ext/ripper/depend         | 2 +-
 ext/ripper/tools/strip.rb | 7 +++----
 2 files changed, 4 insertions(+), 5 deletions(-)

diff --git a/ext/ripper/depend b/ext/ripper/depend
index 4f48512a41..f85d887a71 100644
--- a/ext/ripper/depend
+++ b/ext/ripper/depend
@@ -44,7 +44,7 @@ eventids2table.c: $(srcdir)/tools/generate.rb $(SRC2)
 preproc: ripper.E
 ripper.E: ripper.c
 	$(ECHO) preprocessing ripper.c
-	$(Q) $(CC) -E $(CPPFLAGS) ripper.c | $(RUBY) $(srcdir)/tools/strip.rb > $@
+	$(Q) $(CC) -E $(INCFLAGS) $(CPPFLAGS) $< | $(RUBY) $(srcdir)/tools/strip.rb > $@
 
 # AUTOGENERATED DEPENDENCIES START
 ripper.o: $(RUBY_EXTCONF_H)
diff --git a/ext/ripper/tools/strip.rb b/ext/ripper/tools/strip.rb
index 82022d0b55..0e409eb63b 100755
--- a/ext/ripper/tools/strip.rb
+++ b/ext/ripper/tools/strip.rb
@@ -1,11 +1,10 @@
 # frozen_string_literal: false
 last_is_void = false
 ARGF.each do |line|
-  if line.strip.empty?
-    #puts() unless last_is_void
+  case line
+  when /\A\s*\z/, /\A\#/
+    puts unless last_is_void
     last_is_void = true
-  elsif /\A\#/ === line
-    ;
   else
     print line
     last_is_void = false
-- 
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