Index: NSBlocks.m
===================================================================
--- NSBlocks.m	(revision 29181)
+++ NSBlocks.m	(working copy)
@@ -61,3 +61,6 @@
 	NEW_CLASS(&_NSBlock, _NSConcreteStackBlock);
 	NEW_CLASS(&_NSBlock, _NSConcreteGlobalBlock);
 }
+
address@hidden NSBlock 
address@hidden
Index: GNUmakefile
===================================================================
--- GNUmakefile	(revision 29181)
+++ GNUmakefile	(working copy)
@@ -54,6 +54,8 @@
 	thr.h\
 	typedstream.h
 
+libobjc_LIBRARIES_DEPEND_UPON += -lpthread
+
 # Deprecated functions are only deprecated for external use, not for us because
 # we are special, precious, little flowers.
 libobjc_CPPFLAGS += -D__OBJC_RUNTIME_INTERNAL__=1 -D_XOPEN_SOURCE=500