am 90e83bcc: merge from open-source master

Merge commit '90e83bcc1c41a4d6d310b2bd5cb747a53a88fff3'

* commit '90e83bcc1c41a4d6d310b2bd5cb747a53a88fff3':
  Fix undefined reference to dl_iterate_phdr for x86
diff --git a/libc/Android.mk b/libc/Android.mk
index 7675db5..b3b74ea 100644
--- a/libc/Android.mk
+++ b/libc/Android.mk
@@ -685,6 +685,7 @@
 LOCAL_SHARED_LIBRARIES := libc
 LOCAL_WHOLE_STATIC_LIBRARIES := libc_common
 LOCAL_SYSTEM_SHARED_LIBRARIES :=
+LOCAL_ALLOW_UNDEFINED_SYMBOLS := true
 # Don't prelink
 LOCAL_PRELINK_MODULE := false
 # Don't install on release build