From 7f7aa9d4429256900793bceaef605279ab5e8ccb Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Wed, 31 Aug 2016 08:39:23 +0000
Subject: extmk.rb: build_complete

* ext/extmk.rb (create_makefile): make gem.build_complete file
  under TARGET_SO_DIR and install it only when the gem build
  succeeded.  [ruby-core:77057] [Bug #12681]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56048 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 ext/extmk.rb | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

(limited to 'ext')

diff --git a/ext/extmk.rb b/ext/extmk.rb
index 1b86ff0d71..97533219ee 100755
--- a/ext/extmk.rb
+++ b/ext/extmk.rb
@@ -568,6 +568,24 @@ Dir.chdir('..')
 FileUtils::makedirs('gems')
 Dir.chdir('gems')
 extout = $extout
+unless gems.empty?
+  def self.create_makefile(*args, &block)
+    if super(*args, &block)
+      open("Makefile", "a") do |mf|
+        mf << %{
+
+build_complete = $(TARGET_SO_DIR)gem.build_complete
+install-so: build_complete
+build_complete: $(build_complete)
+$(build_complete): $(TARGET_SO)
+	$(Q) $(TOUCH) $@
+
+}
+      end
+      true
+    end
+  end
+end
 gems.each do |d|
   $extout = extout.dup
   $sodir = "$(extout)/gems/$(arch)/#{d[%r{\A[^/]+}]}"
-- 
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