am 8ddd08b1: am 4ae94541: am 62ea993a: Merge "Revert enabling libunwind."

* commit '8ddd08b1f24d361ace9cd78198664db4bf7e1325':
  Revert enabling libunwind.
diff --git a/libbacktrace/Android.mk b/libbacktrace/Android.mk
index eb55b47..50354d0 100644
--- a/libbacktrace/Android.mk
+++ b/libbacktrace/Android.mk
@@ -23,7 +23,7 @@
 	liblog \
 
 # To enable using libunwind on each arch, add it to the list below.
-ifeq ($(TARGET_ARCH),$(filter $(TARGET_ARCH),arm))
+ifeq ($(TARGET_ARCH),$(filter $(TARGET_ARCH),))
 
 #----------------------------------------------------------------------------
 # The native libbacktrace library with libunwind.