X-Git-Url: https://sigrok.org/gitweb/?p=libsigrokdecode.git;a=blobdiff_plain;f=README;h=fa30ef066a30573f9b0636ff16a2eaf0fad7a909;hp=705f4eb2af835caefbef8293651945e854844435;hb=3a1501e9e07a93a9b157fcce53aa070c5a0bf3d8;hpb=d5a4209da3f3dc35bb3f262818a46c19b524c711

diff --git a/README b/README
index 705f4eb..fa30ef0 100644
--- a/README
+++ b/README
@@ -35,7 +35,10 @@ Requirements
  - libtool
  - pkg-config >= 0.22
  - libglib >= 2.24.0
- - Python >= 3.0
+ - Python >= 3.2
+ - check >= 0.9.4 (optional, only needed to run unit tests)
+ - libsigrok >= 0.3.0 (optional, only needed for the developer PD tests)
+ - python3-coverage (optional, only needed for the developer PD tests)
 
 
 Building and installing
@@ -58,6 +61,27 @@ See INSTALL or the following wiki page for more (OS-specific) instructions:
  http://sigrok.org/wiki/Building
 
 
+Copyright and license
+---------------------
+
+libsigrokdecode is licensed under the terms of the GNU General Public License
+(GPL), version 3 or later.
+
+The protocol decoders (PDs) included in libsigrokdecode are an integral part
+of the shared library (they are not merely external "plugins", they are not
+external programs that libsigrokdecode calls via fork/exec, they cannot
+function standalone without libsigrokdecode at all, the PDs and the rest of
+the libsigrokdecode codebase share data structures and make function calls
+to each other). Thus, since the PDs are part of the library, they are also
+licensed under the terms of the GPLv3+.
+
+While some individual source code files are licensed under the GPLv2+, and
+some files are licensed under the GPLv3+, this doesn't change the fact that
+the library as a whole is licensed under the terms of the GPLv3+.
+
+Please see the individual source files for the full list of copyright holders.
+
+
 Mailing lists
 -------------