···

       
258
       
 
       
<link xlink:href="https://github.com/NixOS/nixpkgs/blob/master/lib/licenses.nix">

     

       
259
       
 
       
<filename>nixpkgs/lib/licenses.nix</filename></link>,

     

       
260
       
 
       
or in-place license description of the same format if the license is

     

       
261
       
-
       
unlikely to be useful in another expression.

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
262
       
 
       


     

       
263
       
-
       
A few generic options are available, although it's typically better

     

       
264
       
-
       
to indicate the specific license:

     

       
265
       
 
       
<variablelist>

     

       
266
       
 
       


     

       
267
       
 
       
  <varlistentry>

     

       
268
       
-
       
    <term><varname>free</varname></term>

     

       
0
       
 
       

     

       
0
       
 
       

     

       
269
       
 
       
    <listitem><para>Catch-all for free software licenses not listed

     

       
270
       
 
       
    above.</para></listitem>

     

       
271
       
 
       
  </varlistentry>

     

       
272
       
 
       


     

       
273
       
 
       
  <varlistentry>

     

       
274
       
-
       
    <term><varname>unfree-redistributable</varname></term>

     

       
0
       
 
       

     

       
0
       
 
       

     

       
275
       
 
       
    <listitem><para>Unfree package that can be redistributed in binary

     

       
276
       
-
       
    form.  That is, it’s legal to redistribute the

     

       
277
       
 
       
    <emphasis>output</emphasis> of the derivation.  This means that

     

       
278
       
 
       
    the package can be included in the Nixpkgs

     

       
279
       
 
       
    channel.</para>

     

       
280
       
 
       


     

       
281
       
 
       
    <para>Sometimes proprietary software can only be redistributed

     

       
282
       
-
       
    unmodified.  Make sure the builder doesn’t actually modify the

     

       
283
       
 
       
    original binaries; otherwise we’re breaking the license.  For

     

       
284
       
 
       
    instance, the NVIDIA X11 drivers can be redistributed unmodified,

     

       
285
       
 
       
    but our builder applies <command>patchelf</command> to make them

     

       
286
       
-
       
    work.  Thus, its license is <varname>unfree</varname> and it

     

       
287
       
 
       
    cannot be included in the Nixpkgs channel.</para></listitem>

     

       
288
       
 
       
  </varlistentry>

     

       
289
       
 
       


     

       
290
       
 
       
  <varlistentry>

     

       
291
       
-
       
    <term><varname>unfree</varname></term>

     

       
292
       
-
       
    <listitem><para>Unfree package that cannot be redistributed.  You

     

       
0
       
 
       

     

       
0
       
 
       

     

       
293
       
 
       
    can build it yourself, but you cannot redistribute the output of

     

       
294
       
-
       
    the derivation.  Thus it cannot be included in the Nixpkgs

     

       
295
       
 
       
    channel.</para></listitem>

     

       
296
       
 
       
  </varlistentry>

     

       
297
       
 
       


     

       
298
       
 
       
  <varlistentry>

     

       
299
       
-
       
    <term><varname>unfree-redistributable-firmware</varname></term>

     

       
0
       
 
       

     

       
0
       
 
       

     

       
300
       
 
       
    <listitem><para>This package supplies unfree, redistributable

     

       
301
       
 
       
    firmware.  This is a separate value from

     

       
302
       
 
       
    <varname>unfree-redistributable</varname> because not everybody

     

···

       
258
       
 
       
<link xlink:href="https://github.com/NixOS/nixpkgs/blob/master/lib/licenses.nix">

     

       
259
       
 
       
<filename>nixpkgs/lib/licenses.nix</filename></link>,

     

       
260
       
 
       
or in-place license description of the same format if the license is

     

       
261
       
+
       
unlikely to be useful in another expression.</para>

     

       
262
       
+
       


     

       
263
       
+
       
<para>Although it's typically better to indicate the specific license,

     

       
264
       
+
       
a few generic options are available:

     

       
265
       
 
       


     

       
0
       
 
       

     

       
0
       
 
       

     

       
266
       
 
       
<variablelist>

     

       
267
       
 
       


     

       
268
       
 
       
  <varlistentry>

     

       
269
       
+
       
    <term><varname>stdenv.lib.licenses.free</varname>,

     

       
270
       
+
       
    <varname>"free"</varname></term>

     

       
271
       
+
       


     

       
272
       
 
       
    <listitem><para>Catch-all for free software licenses not listed

     

       
273
       
 
       
    above.</para></listitem>

     

       
274
       
 
       
  </varlistentry>

     

       
275
       
 
       


     

       
276
       
 
       
  <varlistentry>

     

       
277
       
+
       
    <term><varname>stdenv.lib.licenses.unfreeRedistributable</varname>,

     

       
278
       
+
       
    <varname>"unfree-redistributable"</varname></term>

     

       
279
       
+
       


     

       
280
       
 
       
    <listitem><para>Unfree package that can be redistributed in binary

     

       
281
       
+
       
    form. That is, it’s legal to redistribute the

     

       
282
       
 
       
    <emphasis>output</emphasis> of the derivation.  This means that

     

       
283
       
 
       
    the package can be included in the Nixpkgs

     

       
284
       
 
       
    channel.</para>

     

       
285
       
 
       


     

       
286
       
 
       
    <para>Sometimes proprietary software can only be redistributed

     

       
287
       
+
       
    unmodified. Make sure the builder doesn’t actually modify the

     

       
288
       
 
       
    original binaries; otherwise we’re breaking the license.  For

     

       
289
       
 
       
    instance, the NVIDIA X11 drivers can be redistributed unmodified,

     

       
290
       
 
       
    but our builder applies <command>patchelf</command> to make them

     

       
291
       
+
       
    work. Thus, its license is <varname>"unfree"</varname> and it

     

       
292
       
 
       
    cannot be included in the Nixpkgs channel.</para></listitem>

     

       
293
       
 
       
  </varlistentry>

     

       
294
       
 
       


     

       
295
       
 
       
  <varlistentry>

     

       
296
       
+
       
    <term><varname>stdenv.lib.licenses.unfree</varname>,

     

       
297
       
+
       
    <varname>"unfree"</varname></term>

     

       
298
       
+
       


     

       
299
       
+
       
    <listitem><para>Unfree package that cannot be redistributed. You

     

       
300
       
 
       
    can build it yourself, but you cannot redistribute the output of

     

       
301
       
+
       
    the derivation. Thus it cannot be included in the Nixpkgs

     

       
302
       
 
       
    channel.</para></listitem>

     

       
303
       
 
       
  </varlistentry>

     

       
304
       
 
       


     

       
305
       
 
       
  <varlistentry>

     

       
306
       
+
       
    <term><varname>stdenv.lib.licenses.unfreeRedistributableFirmware</varname>,

     

       
307
       
+
       
    <varname>"unfree-redistributable-firmware"</varname></term>

     

       
308
       
+
       


     

       
309
       
 
       
    <listitem><para>This package supplies unfree, redistributable

     

       
310
       
 
       
    firmware.  This is a separate value from

     

       
311
       
 
       
    <varname>unfree-redistributable</varname> because not everybody