diff -up openwsman-2.4.12/bindings/ruby/extconf.rb.orig openwsman-2.4.12/bindings/ruby/extconf.rb
--- openwsman-2.4.12/bindings/ruby/extconf.rb.orig	2015-02-09 09:28:58.232581263 +0100
+++ openwsman-2.4.12/bindings/ruby/extconf.rb	2015-02-09 09:38:22.836772879 +0100
@@ -32,7 +32,7 @@ swig = find_executable("swig")
 raise "SWIG not found" unless swig
 
 major, minor, path = RUBY_VERSION.split(".")
-raise "SWIG failed to run" unless system("#{swig} -ruby -autorename -DRUBY_VERSION=#{major}#{minor} -I. -I/usr/include/openwsman -o openwsman_wrap.c openwsman.i")
+raise "SWIG failed to run" unless system("#{swig} -ruby -autorename -DRUBY_VERSION=#{major}#{minor} -I. -I/usr/include/openwsman -I/builddir/build/BUILD/openwsman-4391e5c68d99c6239e1672d1c8a5a16d7d8c4c2b/include/ -o openwsman_wrap.c openwsman.i")
 
 $CPPFLAGS = "-I/usr/include/openwsman -I.."