Revision: 835
http://www.exim.org/viewvc/pcre2?view=rev&revision=835
Author: ph10
Date: 2017-06-26 12:21:19 +0100 (Mon, 26 Jun 2017)
Log Message:
-----------
Amend licence to relax its conditions for chains of binary distributions.
Modified Paths:
--------------
code/trunk/LICENCE
Modified: code/trunk/LICENCE
===================================================================
--- code/trunk/LICENCE 2017-06-24 15:54:14 UTC (rev 834)
+++ code/trunk/LICENCE 2017-06-26 11:21:19 UTC (rev 835)
@@ -5,9 +5,10 @@
and semantics are as close as possible to those of the Perl 5 language.
Release 10 of PCRE2 is distributed under the terms of the "BSD" licence, as
-specified below. The documentation for PCRE2, supplied in the "doc"
-directory, is distributed under the same terms as the software itself. The data
-in the testdata directory is not copyrighted and is in the public domain.
+specified below, with one exemption for certain binary redistributions. The
+documentation for PCRE2, supplied in the "doc" directory, is distributed under
+the same terms as the software itself. The data in the testdata directory is
+not copyrighted and is in the public domain.
The basic library functions are written in C and are freestanding. Also
included in the distribution is a just-in-time compiler that can be used to
@@ -57,11 +58,11 @@
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
- * Redistributions of source code must retain the above copyright notice,
+ * Redistributions of source code must retain the above copyright notices,
this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright
- notice, this list of conditions and the following disclaimer in the
+ notices, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
* Neither the name of the University of Cambridge nor the names of any
@@ -80,4 +81,14 @@
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
+
+EXEMPTION FOR BINARY LIBRARY-LIKE PACKAGES
+------------------------------------------
+
+The second condition in the BSD licence (covering binary redistributions) does
+not apply all the way down a chain of software. If binary package A includes
+PCRE2, it must respect the condition, but if package B is software that
+includes package A, the condition is not imposed on package B unless it uses
+PCRE2 independently.
+
End
