diff -u apr-1.4.5/debian/changelog apr-1.4.5/debian/changelog
--- apr-1.4.5/debian/changelog
+++ apr-1.4.5/debian/changelog
@@ -1,3 +1,10 @@
+apr (1.4.5-1.1ubuntu2) precise; urgency=low
+
+  * Revert the previous upload; apr_cv_mutex_robust_shared still
+    hangs on our current buildd setup; need to revisit later.
+
+ -- Adam Conrad <adconrad@ubuntu.com>  Fri, 24 Feb 2012 04:51:20 -0700
+
 apr (1.4.5-1.1ubuntu1) precise; urgency=low
 
   * debian/rules: Re-enable apr_cv_mutex_robust_shared support on
diff -u apr-1.4.5/debian/rules apr-1.4.5/debian/rules
--- apr-1.4.5/debian/rules
+++ apr-1.4.5/debian/rules
@@ -30,8 +30,14 @@
 	apr_cv_dup3=no \
 	apr_cv_accept4=no
 
-# apr_cv_mutex_robust_shared causes hangs in procmutex test on alpha
+# apr_cv_mutex_robust_shared causes hangs in procmutex test on arm(el|hf) and alpha
 # let's just disable this for squeeze
+ifneq (,$(findstring armel,$(DEB_BUILD_ARCH)))
+  CONFFLAGS += apr_cv_mutex_robust_shared=no
+endif
+ifneq (,$(findstring armhf,$(DEB_BUILD_ARCH)))
+  CONFFLAGS += apr_cv_mutex_robust_shared=no
+endif
 ifneq (,$(findstring alpha,$(DEB_BUILD_ARCH)))
   CONFFLAGS += apr_cv_mutex_robust_shared=no
 endif