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authorCarl Worth <cworth@cworth.org>2006-11-21 12:15:16 -0800
committerCarl Worth <cworth@cworth.org>2006-11-29 22:40:28 -0800
commit812fd53499d308ff881751e57c1e3287498ddd0f (patch)
treec3cb8ed138fe521b854d39223995cd814ac9b7b1 /COPYING
parentd9fd942e4774aa29967f908001b62dbc987d2f66 (diff)
Add perceptualdiff program totest/pdiff.
The perceptualdiff program was written by Hector Yee with contributions from Scott Corley and Mick Weiss. It is hosted at http://pdiff.sourceforge.net The source code added here was obtained by: svn co https://svn.sourceforge.net/svnroot/pdiff/trunk pdiff which gave revision 22 of the source code. The perceptualdiff program is available under the terms of the GNU GPL, so I've added a note to COPYING about this program, (and the fact that it is auxiliary only, and does not affect the license of the implementation of cairo itself).
Diffstat (limited to 'COPYING')
-rw-r--r--COPYING21
1 files changed, 18 insertions, 3 deletions
diff --git a/COPYING b/COPYING
index 145e6296..7019cd69 100644
--- a/COPYING
+++ b/COPYING
@@ -1,6 +1,6 @@
Cairo is free software.
-Every source file in the implementation of cairo is available to be
+Every source file in the implementation[*] of cairo is available to be
redistributed and/or modified under the terms of either the GNU Lesser
General Public License (LGPL) version 2.1 or the Mozilla Public
License (MPL) version 1.1. Some files are available under more
@@ -13,5 +13,20 @@ conditions of either license:
COPYING-LGPL-2.1
COPYING-MPL-1.1
-Please see each file in the implementation for Copyright and licensing
-information.
+Please see each file in the implementation for copyright and licensing
+information, (in the opening comment of each file).
+
+[*] The implementation of cairo is contained entirely within the "src"
+and "pixman" directories of the cairo source distribution. There are
+other components of the cairo source distribution (such as the "test"
+and "perf") that are auxiliary to the library itself. None of the
+source code in these directories contributes to a build of the cairo
+library itself, (libcairo.so or cairo.dll or similar).
+
+These auxilary components are also free software, but may be under
+different license terms than cairo itself. For example, most of the
+test cases in the perf and test directories are made available under
+an MIT license to simplify any use of this code for reference purposes
+in using cairo itself. Other files might be available under the GNU
+General Public License (GPL), for example. Again, please see the
+opening comment of each file for copyright and licensing information.