Build Unix-friendly versions directly from library.
diff --git a/unix/NOTICE.mk b/unix/NOTICE.mk
new file mode 100644
index 0000000..6bd9c79
--- /dev/null
+++ b/unix/NOTICE.mk
@@ -0,0 +1,40 @@
+This copyright NOTICE applies to all files in this directory and
+subdirectories, unless another copyright notice appears in a given
+file or subdirectory. If you take code from this software to use in
+other programs, you must somehow include with it an appropriate
+copyright notice that includes the copyright notice and the other
+notices above.
+
+This Computer Program is subject to Copyright owned by one or more Authors:
+
+ Copyright © 1994-1999 Lucent Technologies Inc. All rights reserved.
+ Revisions Copyright © 2000-2003 Vita Nuova Holdings Limited (www.vitanuova.com). All rights reserved.
+
+Under a licence agreement with Lucent Technologies Inc. effective 1st March 2000,
+Vita Nuova Holdings Limited has the right to determine (within a specified scope)
+the form and content of sublicences for this software.
+
+ Free-for-all Licence
+
+The associated software is hereby made available to Recipients with a
+royalty-free licence for its use, reproduction, transfer
+to other parties and amendment for any purpose not excluding
+product development provided that any such use et cetera
+shall be deemed to be acceptance of the following conditions:
+
+ (1) Its Recipients shall ensure that this Notice
+ and all other copyright notices are reproduced
+ upon any copies or amended versions of it;
+
+ (2) Any amended version of it shall be clearly marked to
+ show both the nature of and the organisation responsible
+ for the relevant amendment or amendments;
+
+ (3) Its agreed onward transfer from a Recipient to another
+ party shall be deemed to be that party's acceptance of
+ these conditions;
+
+ (4) the Authors give no warranty or assurance as to its
+ quality or suitability for any purpose and the Authors accept
+ no liability whatsoever in relation to any use to which
+ it may be put.
