> Элементарно, Ватсон! Лицензия BSD это позволяет. Да хоть в проприетарщину.

Вместо цитирования "Опеннетный сборник самой правдивейшей правды о БЗДах! Том 119" лучше бы в саму лицензию глянул:

Copyright (c) <year>, <copyright holder> All rights reserved.
Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.

Ну или в код:
https://github.com/FarGroup/FarManager/blob/master/far/FarDl...

Copyright © 2010 Far Group
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
   notice, this list of conditions and the following disclaimer.

https://github.com/elfmz/far2l/blob/50717df883335eed9a00dce5...
> Copyright (c) 2010 Far Group
> All rights reserved.
> Redistribution and use in source and binary forms
>