+See lgpl-relicensing.txt for details.
+
+
+* MIT-style license :
+
+xchg() primitive has been rewritten from scratch starting from atomic_ops 1.2
+which has a MIT-style license that is intended to allow use in both free and
+proprietary software:
+ http://www.hpl.hp.com/research/linux/atomic_ops/LICENSING.txt
+ http://www.hpl.hp.com/personal/Hans_Boehm/gc/gc_source/
+
+This MIT-style license (BSD like) apply to:
+
+uatomic/gcc.h
+uatomic/unknown.h
+uatomic/generic.h
+uatomic/sparc64.h
+uatomic/arm.h
+uatomic/ppc.h
+uatomic/x86.h
+uatomic.h
+
+MIT/X11 (BSD like) license apply to:
+
+compiler.h
+arch/s390.h
+uatomic/alpha.h
+uatomic/mips.h
+uatomic/nios2.h
+uatomic/s390.h
+system.h
+
+
+* GPLv2
+