From: Sam Morris <sam@robots.org.uk>
Date: Mon, 5 Dec 2016 02:24:42 +0000
Subject: Link with --as-needed

---
 Rakefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Rakefile b/Rakefile
index 8e8f95f..9515980 100644
--- a/Rakefile
+++ b/Rakefile
@@ -84,7 +84,7 @@ task :make do
     ruby 'extconf.rb'
     system 'make clean'
     bail_on_failure
-    system 'make', 'V=1'
+    system 'make', 'V=1', 'DLDFLAGS=$(ldflags) $(dldflags) $(ARCH_FLAG) -Wl,--as-needed'
     bail_on_failure
   end
 end