Thrift-1354: Add rake task to build just the gem file
Client: rb
Patch: jfarrell

Updates ruby build to now build the gem by default and adds a rake task to create the gem.



git-svn-id: https://svn.apache.org/repos/asf/thrift/trunk@1174393 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/lib/rb/Makefile.am b/lib/rb/Makefile.am
index a3ea975..0f10357 100644
--- a/lib/rb/Makefile.am
+++ b/lib/rb/Makefile.am
@@ -31,7 +31,7 @@
 DESTDIR ?= /
 
 all-local:
-	$(RAKE) build_ext
+	$(RAKE) 
 
 install-exec-hook:
 	$(RAKE) install