try to make build portable (for move to build2.eclipse.org).
diff --git a/releng/build-scripts/build/run.xml b/releng/build-scripts/build/run.xml
index bb4ec70..8f699c0 100644
--- a/releng/build-scripts/build/run.xml
+++ b/releng/build-scripts/build/run.xml
@@ -80,7 +80,7 @@
 		<available file="${saxon.jar.path}" property="_hasSaxon.jar" />
 		
 		<!-- ant's os.arch is slightly different than osgi's arch -->
-		<condition property="arch" value="x86">
+		<condition property="arch" value="x86_64"> <!-- HACK: hard coding 64-bit architecture -->
 			<os arch="i386" />
 		</condition>
 		<condition property="arch" value="ppc64"> <!-- HACK: hard coding 64-bit architecture -->