Index: build.xml
===================================================================
--- build.xml	(revision 11374)
+++ build.xml	(working copy)
@@ -241,7 +246,6 @@
       <exclude name="org/armedbear/lisp/tests/*.lisp"/>
       <exclude name="org/armedbear/lisp/boot.lisp"/>
       <exclude name="org/armedbear/lisp/emacs.lisp"/>
-      <exclude name="org/armedbear/lisp/with-mutex.lisp"/>
       <exclude name="org/armedbear/lisp/swank-xcl.lisp"/>
       <exclude name="org/armedbear/lisp/swank-sbcl.lisp"/>
       <exclude name="org/armedbear/lisp/swank-package.lisp"/>