1 files changed, 7 insertions, 2 deletions
diff --git a/tool/rbinstall.rb b/tool/rbinstall.rb
index 9c0a4fa1ff..0f4804c94d 100755
--- a/tool/rbinstall.rb
+++ b/tool/rbinstall.rb
@@ -699,9 +699,14 @@ end
 install?(:ext, :arch, :gem, :'default-gems', :'default-gems-arch') do
   install_default_gem('ext', srcdir) do |path|
     # assume that gemspec and extconf.rb are placed in the same directory
-    IO.foreach(File.dirname(path[(srcdir.size+1)..-1]) + "/Makefile") do |l|
-      break true if /^TARGET\s*=/ =~ l
+    success = false
+    begin
+      IO.foreach(File.dirname(path[(srcdir.size+1)..-1]) + "/Makefile") do |l|
+        break success = true if /^TARGET\s*=/ =~ l
+      end
+    rescue Errno::ENOENT
     end
+    success
   end
 end