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authorLuca Ceresoli <luca@lucaceresoli.net>2012-05-17 17:33:08 (GMT)
committer Thomas Petazzoni <thomas.petazzoni@free-electrons.com>2012-07-17 17:06:29 (GMT)
commit1bb7a8ee4b0d4c4d746329825f322dad3678d0eb (patch)
tree9040b3d87c774c538be6550666ad7115b820c3e2
parent00ba118fcaa9ae398c138d7823b3acdea3bfb0bf (diff)
downloadbuildroot-1bb7a8ee4b0d4c4d746329825f322dad3678d0eb.tar.gz
buildroot-1bb7a8ee4b0d4c4d746329825f322dad3678d0eb.tar.bz2
manual: add advice about GPL compliance for Buildroot
Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
-rw-r--r--docs/manual/using.txt27
1 files changed, 27 insertions, 0 deletions
diff --git a/docs/manual/using.txt b/docs/manual/using.txt
index 42d4061..fcbd24b 100644
--- a/docs/manual/using.txt
+++ b/docs/manual/using.txt
@@ -284,3 +284,30 @@ Buildroot, with the name used in the manifest file:
* +BSD-2c+: BSD 2-clause license;
* +PROPRIETARY+: marks a non-opensource package;
Buildroot does not save any licensing info or source code for these packages.
+
+Complying with the Buildroot license
+------------------------------------
+
+Buildroot itself is an opensource software, released under the
+http://www.gnu.org/licenses/old-licenses/gpl-2.0.html[GNU General Public
+License, version 2] or (at your option) any later version.
+However, being a build system, it is not normally part of the end product:
+if you develop the root filesystem, kernel, bootloader or toolchain for a
+device, the code of Buildroot is only present on the development machine, not
+in the device storage.
+
+Nevertheless, the general view of the Buildroot developers is that you should
+release the Buildroot source code along with the source code of other packages
+when releasing a product that contains GPL-licensed software.
+This is because the
+http://www.gnu.org/licenses/old-licenses/gpl-2.0.html[GNU GPL]
+defines the "'complete source code'" for an executable work as "'all the
+source code for all modules it contains, plus any associated interface
+definition files, plus the scripts used to control compilation and installation
+of the executable'".
+Buildroot is part of the 'scripts used to control compilation and
+installation of the executable', and as such it is considered part of the
+material that must be redistributed.
+
+Keep in mind this is only the Buildroot developers' opinion, and you should
+consult your legal department or lawyer in case of any doubt.