https://git.ruby-lang.org/ruby.git/commit/?id=78cbe7106b

From 78cbe7106b67d007ffdcc1276b352212eaaef4b2 Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@r...>
Date: Fri, 31 Jan 2020 12:52:22 +0900
Subject: Return the makefile content

Block for `create_makefile` is expected to return the content of
the makefile.

diff --git a/ext/-test-/cxxanyargs/extconf.rb b/ext/-test-/cxxanyargs/extconf.rb
index 97b09ce..08d8c83 100644
--- a/ext/-test-/cxxanyargs/extconf.rb
+++ b/ext/-test-/cxxanyargs/extconf.rb
@@ -28,5 +28,6 @@ if ok https://github.com/ruby/ruby/blob/trunk/ext/-test-/cxxanyargs/extconf.rb#L28
   create_makefile("-test-/cxxanyargs") do |mk|
     mk << "FAILURES #{['=', failures].join(' ')}\n"
     mk << ".IGNORE: $(FAILURES:.cpp=.o)\n" unless $mswin
+    mk
   end
 end
-- 
cgit v0.10.2


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