Index: libcfa/src/bits/weakso_locks.cfa
===================================================================
--- libcfa/src/bits/weakso_locks.cfa	(revision 8108ba8a8f4d28b94bec400ffa195c7e3ecb16b5)
+++ libcfa/src/bits/weakso_locks.cfa	(revision c18bf9eddfe77cfd73d744125db1976f87600f71)
@@ -18,4 +18,6 @@
 #include "bits/weakso_locks.hfa"
 
+#pragma GCC visibility push(default)
+
 void  ?{}( blocking_lock &, bool, bool ) {}
 void ^?{}( blocking_lock & ) {}