Why is CDDL incompatible with GPL?

It has a weak per-file copyleft (like version 1 of the Mozilla Public License) which makes it incompatible with the GNU GPL. This means a module covered by the GPL and a module covered by the CDDL cannot legally be linked together. We urge you not to use the CDDL for this reason.

Is GPL license legal?

GPL is enforceable as it’s essentially a copyright license. The copyright holders of the GPL software can choose to enforce the GPL on the distributed or derivative works of the software. For example, the FSF holds the copyrights on many pieces of the GNU system, such as the GNU Compiler Collection.

Is GPL license bad?

Many consider the GPL a “business-unfriendly” license because of its so-called viral nature: All software derived from GPL-licensed code must in turn be licensed under the GPL. If the GPL doesn’t work for you, you can purchase the software under an alternative commercial license.

What licenses are GPL compatible?

These licenses are compatible with the GNU GPL version 2.

Berkeley Database License (aka the Sleepycat Software Product License)
Boost Software License.
CeCILL version 2.
Clarified Artistic License.
Cryptix General License.
EU DataGrid Software License.
Eiffel Forum License, version 2.
Expat License.

Is CDDL license permissive?

Like the MPL, the CDDL is a weak copyleft license in-between GPL license and BSD/MIT permissive licenses, requiring only source code files under CDDL to remain under CDDL.

Does Eclipse require license?

The Eclipse Public License is designed to be a business-friendly free software license, and features weaker copyleft provisions than licenses such as the GNU General Public License (GPL)….Eclipse Public License.

Author	Eclipse Foundation
Published	24 August 2017
SPDX identifier	EPL-2.0 EPL-1.0
Debian FSG compatible	Yes
OSI approved	Yes

Is GPLV3 a copyleft?

GPLv3 still maintains the same primary intent as GPLv2 but has stricter copyleft protections. Language in GPLv3 makes it much more comprehensive to address technical and legal changes, including international license exchange clauses.

What is GPL 2 license?

Among today’s more popular OSS licenses is the GNU (of the GNU Project) General Public License Version 2.0, commonly referred to as simply GPL v2. Initially released in 1991, the GPL 2 is a copyleft license, meaning users must abide by some strict rules and requirements.

What are the advantages of GPL license software?

Advantages for users of GPL v3 software As a user of GPL v3 software, you have lots of freedom: You can use GPL software for commercial purposes. You can modify the software and create derivative work. You can distribute the software and any derivative work you produce, without having to ask for permission or pay …

Is CDDL compatible with Apache?

In addition to that, both Apache 2.0 and BSD are considered compatible with the GNU GPL, unlike CDDL. However, the CDDL is compatible with both the Apache and the BSD licenses.

Is GPL and MIT compatible?

The MIT license is compatible with many copyleft licenses, such as the GNU General Public License (GPL); MIT licensed software can be integrated with GPL software. Notable companies using the MIT License include Microsoft (.NET Core), Google (Angular) and Facebook (React).

Is CDDL open-source?

The Common Development and Distribution License (CDDL) is a free and open-source software license, produced by Sun Microsystems, based on the Mozilla Public License (MPL). Files licensed under the CDDL can be combined with files licensed under other licenses, whether open source or proprietary.

Can a GPL license be mixed with a CDDL license?

The fact that on the other side, the CDDL explicitly limits its scope to the files that contain CDDL’d code, allows us make our first conclusion: Code under the CDDL and code under the GPL cannot be mixed in a single file. The GPL is a license that limits its scope to the so called “work” limit and forbids relicensing of code.

Is the GPLv2 the same as the CDDL?

This year’s LLW was held in Barcelona, April 13-15. Both the CDDL, which is the license under which ZFS is distributed, and the GPLv2, the license used for the kernel, are considered open-source licenses, but they are, to some extent, incompatible with each other.

Which is a weak copyleft license like the GPL?

Derived from the Mozilla Public License 1.1, the CDDL tries to address some of the problems of the MPL. Like the MPL, the CDDL is a weak copyleft license in-between GPL license and BSD / MIT permissive licenses, requiring only source code files under CDDL to remain under CDDL.