Qbs Manual | Appendix C: Licenses and Code Attributions

Qbs 1.14.0

Appendix B: Migrating from Other Build Systems

# Appendix C: Licenses and Code Attributions

## Licenses

The Qbs library and tools are available under commercial licenses from The Qt Company. In addition, they are available under GNU Lesser General Public License, Version 3 (LGPL version 3) and GNU General Public License, version 2 (GPL version 2).

Shared functionality, which might be pulled in by user build scripts, is available under commercial licenses, GNU Lesser General Public License, Version 2.1 (LGPL version 2.1) with The Qt Company LGPL Exception version 1.1, and LGPL version 3.

Autotests are available under commercial licenses and GNU General Public License Version 3, Annotated with The Qt Company GPL Exception 1.0.

Examples are available under commercial licenses and BSD.

### GNU Lesser General Public License, Version 3

                  GNU LESSER GENERAL PUBLIC LICENSE

       The Qt Toolkit is Copyright (C) 2015 The Qt Company Ltd.
       Contact: http://www.qt.io/licensing

       You may use, distribute and copy the Qt GUI Toolkit under the terms of
       GNU Lesser General Public License version 3, which is displayed below.

      -------------------------------------------------------------------------

                  GNU LESSER GENERAL PUBLIC LICENSE
                      Version 3, 29 June 2007

       Copyright © 2007 Free Software Foundation, Inc. <http://fsf.org/>
      Everyone is permitted to copy and distribute verbatim copies of this
      licensedocument, but changing it is not allowed.

      This version of the GNU Lesser General Public License incorporates
      the terms and conditions of version 3 of the GNU General Public
      License, supplemented by the additional permissions listed below.

      0. Additional Definitions.

       As used herein, “this License” refers to version 3 of the GNU Lesser
      General Public License, and the “GNU GPL” refers to version 3 of the
      GNU General Public License.

       “The Library” refers to a covered work governed by this License,
      other than an Application or a Combined Work as defined below.

       An “Application” is any work that makes use of an interface provided
      by the Library, but which is not otherwise based on the Library.
      Defining a subclass of a class defined by the Library is deemed a mode
      of using an interface provided by the Library.

       A “Combined Work” is a work produced by combining or linking an
      Application with the Library. The particular version of the Library
      with which the Combined Work was made is also called the “Linked
      Version”.

       The “Minimal Corresponding Source” for a Combined Work means the
      Corresponding Source for the Combined Work, excluding any source code
      for portions of the Combined Work that, considered in isolation, are
      based on the Application, and not on the Linked Version.

       The “Corresponding Application Code” for a Combined Work means the
      object code and/or source code for the Application, including any data
      and utility programs needed for reproducing the Combined Work from the
      Application, but excluding the System Libraries of the Combined Work.

      1. Exception to Section 3 of the GNU GPL.

       You may convey a covered work under sections 3 and 4 of this License
      without being bound by section 3 of the GNU GPL.

      2. Conveying Modified Versions.

       If you modify a copy of the Library, and, in your modifications, a
      facility refers to a function or data to be supplied by an Application
      that uses the facility (other than as an argument passed when the
      facility is invoked), then you may convey a copy of the modified
      version:

          a) under this License, provided that you make a good faith effort
          to ensure that, in the event an Application does not supply the
          function or data, the facility still operates, and performs
          whatever part of its purpose remains meaningful, or

          b) under the GNU GPL, with none of the additional permissions of
          this License applicable to that copy.

      3. Object Code Incorporating Material from Library Header Files.

       The object code form of an Application may incorporate material from
      a header file that is part of the Library. You may convey such object
      code under terms of your choice, provided that, if the incorporated
      material is not limited to numerical parameters, data structure
      layouts and accessors, or small macros, inline functions and templates
      (ten or fewer lines in length), you do both of the following:

          a) Give prominent notice with each copy of the object code that
          the Library is used in it and that the Library and its use are
          covered by this License.

          b) Accompany the object code with a copy of the GNU GPL and this
          license document.

      4. Combined Works.

       You may convey a Combined Work under terms of your choice that, taken
      together, effectively do not restrict modification of the portions of
      the Library contained in the Combined Work and reverse engineering for
      debugging such modifications, if you also do each of the following:

          a) Give prominent notice with each copy of the Combined Work that
          the Library is used in it and that the Library and its use are
          covered by this License.

          b) Accompany the Combined Work with a copy of the GNU GPL and this
          license document.

          c) For a Combined Work that displays copyright notices during
          execution, include the copyright notice for the Library among
          these notices, as well as a reference directing the user to the
          copies of the GNU GPL and this license document.

          d) Do one of the following:

              0) Convey the Minimal Corresponding Source under the terms of
              this License, and the Corresponding Application Code in a form
              suitable for, and under terms that permit, the user to
              recombine or relink the Application with a modified version of
              the Linked Version to produce a modified Combined Work, in the
              manner specified by section 6 of the GNU GPL for conveying
              Corresponding Source.

              1) Use a suitable shared library mechanism for linking with
              the Library. A suitable mechanism is one that (a) uses at run
              time a copy of the Library already present on the user's
              computer system, and (b) will operate properly with a modified
              version of the Library that is interface-compatible with the
              Linked Version.

          e) Provide Installation Information, but only if you would
          otherwise be required to provide such information under section 6
          of the GNU GPL, and only to the extent that such information is
          necessary to install and execute a modified version of the
          Combined Work produced by recombining or relinking the Application
          with a modified version of the Linked Version. (If you use option
          4d0, the Installation Information must accompany the Minimal
          Corresponding Source and Corresponding Application Code. If you
          use option 4d1, you must provide the Installation Information in
          the manner specified by section 6 of the GNU GPL for conveying
          Corresponding Source.)

      5. Combined Libraries.

       You may place library facilities that are a work based on the Library
      side by side in a single library together with other library
      facilities that are not Applications and are not covered by this
      License, and convey such a combined library under terms of your
      choice, if you do both of the following:

          a) Accompany the combined library with a copy of the same work
          based on the Library, uncombined with any other library
          facilities, conveyed under the terms of this License.

          b) Give prominent notice with the combined library that part of
          it is a work based on the Library, and explaining where to find
          the accompanying uncombined form of the same work.

      6. Revised Versions of the GNU Lesser General Public License.

       The Free Software Foundation may publish revised and/or new versions
      of the GNU Lesser General Public License from time to time. Such new
      versions will be similar in spirit to the present version, but may
      differ in detail to address new problems or concerns.

      Each version is given a distinguishing version number. If the Library
      as you received it specifies that a certain numbered version of the
      GNU Lesser General Public License “or any later version” applies to
      it, you have the option of following the terms and conditions either
      of that published version or of any later version published by the
      Free Software Foundation. If the Library as you received it does not
      specify a version number of the GNU Lesser General Public License,
      you may choose any version of the GNU Lesser General Public License
      ever published by the Free Software Foundation.

      If the Library as you received it specifies that a proxy can decide
      whether future versions of the GNU Lesser General Public License shall
      apply, that proxy's public statement of acceptance of any version is
      permanent authorization for you to choose that version for the Library.

### GNU General Public License Version 3, Annotated with The Qt Company GPL Exception 1.0

      This is the GNU General Public License version 3, annotated with The
      Qt Company GPL Exception 1.0:

      -------------------------------------------------------------------------

      The Qt Company GPL Exception 1.0

      Exception 1:

      As a special exception you may create a larger work which contains the
      output of this application and distribute that work under terms of your
      choice, so long as the work is not otherwise derived from or based on
      this application and so long as the work does not in itself generate
      output that contains the output from this application in its original
      or modified form.

      Exception 2:

      As a special exception, you have permission to combine this application
      with Plugins licensed under the terms of your choice, to produce an
      executable, and to copy and distribute the resulting executable under
      the terms of your choice. However, the executable must be accompanied
      by a prominent notice offering all users of the executable the entire
      source code to this application, excluding the source code of the
      independent modules, but including any changes you have made to this
      application, under the terms of this license.

      -------------------------------------------------------------------------

                          GNU GENERAL PUBLIC LICENSE
                             Version 3, 29 June 2007

       Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
       Everyone is permitted to copy and distribute verbatim copies
       of this license document, but changing it is not allowed.

                                  Preamble

        The GNU General Public License is a free, copyleft license for
      software and other kinds of works.

        The licenses for most software and other practical works are designed
      to take away your freedom to share and change the works.  By contrast,
      the GNU General Public License is intended to guarantee your freedom to
      share and change all versions of a program--to make sure it remains free
      software for all its users.  We, the Free Software Foundation, use the
      GNU General Public License for most of our software; it applies also to
      any other work released this way by its authors.  You can apply it to
      your programs, too.

        When we speak of free software, we are referring to freedom, not
      price.  Our General Public Licenses are designed to make sure that you
      have the freedom to distribute copies of free software (and charge for
      them if you wish), that you receive source code or can get it if you
      want it, that you can change the software or use pieces of it in new
      free programs, and that you know you can do these things.

        To protect your rights, we need to prevent others from denying you
      these rights or asking you to surrender the rights.  Therefore, you have
      certain responsibilities if you distribute copies of the software, or if
      you modify it: responsibilities to respect the freedom of others.

        For example, if you distribute copies of such a program, whether
      gratis or for a fee, you must pass on to the recipients the same
      freedoms that you received.  You must make sure that they, too, receive
      or can get the source code.  And you must show them these terms so they
      know their rights.

        Developers that use the GNU GPL protect your rights with two steps:
      (1) assert copyright on the software, and (2) offer you this License
      giving you legal permission to copy, distribute and/or modify it.

        For the developers' and authors' protection, the GPL clearly explains
      that there is no warranty for this free software.  For both users' and
      authors' sake, the GPL requires that modified versions be marked as
      changed, so that their problems will not be attributed erroneously to
      authors of previous versions.

        Some devices are designed to deny users access to install or run
      modified versions of the software inside them, although the manufacturer
      can do so.  This is fundamentally incompatible with the aim of
      protecting users' freedom to change the software.  The systematic
      pattern of such abuse occurs in the area of products for individuals to
      use, which is precisely where it is most unacceptable.  Therefore, we
      have designed this version of the GPL to prohibit the practice for those
      products.  If such problems arise substantially in other domains, we
      stand ready to extend this provision to those domains in future versions
      of the GPL, as needed to protect the freedom of users.

        Finally, every program is threatened constantly by software patents.
      States should not allow patents to restrict development and use of
      software on general-purpose computers, but in those that do, we wish to
      avoid the special danger that patents applied to a free program could
      make it effectively proprietary.  To prevent this, the GPL assures that
      patents cannot be used to render the program non-free.

        The precise terms and conditions for copying, distribution and
      modification follow.

                             TERMS AND CONDITIONS

        0. Definitions.

        "This License" refers to version 3 of the GNU General Public License.

        "Copyright" also means copyright-like laws that apply to other kinds of
      works, such as semiconductor masks.

        "The Program" refers to any copyrightable work licensed under this
      License.  Each licensee is addressed as "you".  "Licensees" and
      "recipients" may be individuals or organizations.

        To "modify" a work means to copy from or adapt all or part of the work
      in a fashion requiring copyright permission, other than the making of an
      exact copy.  The resulting work is called a "modified version" of the
      earlier work or a work "based on" the earlier work.

        A "covered work" means either the unmodified Program or a work based
      on the Program.

        To "propagate" a work means to do anything with it that, without
      permission, would make you directly or secondarily liable for
      infringement under applicable copyright law, except executing it on a
      computer or modifying a private copy.  Propagation includes copying,
      distribution (with or without modification), making available to the
      public, and in some countries other activities as well.

        To "convey" a work means any kind of propagation that enables other
      parties to make or receive copies.  Mere interaction with a user through
      a computer network, with no transfer of a copy, is not conveying.

        An interactive user interface displays "Appropriate Legal Notices"
      to the extent that it includes a convenient and prominently visible
      feature that (1) displays an appropriate copyright notice, and (2)
      tells the user that there is no warranty for the work (except to the
      extent that warranties are provided), that licensees may convey the
      work under this License, and how to view a copy of this License.  If
      the interface presents a list of user commands or options, such as a
      menu, a prominent item in the list meets this criterion.

        1. Source Code.

        The "source code" for a work means the preferred form of the work
      for making modifications to it.  "Object code" means any non-source
      form of a work.

        A "Standard Interface" means an interface that either is an official
      standard defined by a recognized standards body, or, in the case of
      interfaces specified for a particular programming language, one that
      is widely used among developers working in that language.

        The "System Libraries" of an executable work include anything, other
      than the work as a whole, that (a) is included in the normal form of
      packaging a Major Component, but which is not part of that Major
      Component, and (b) serves only to enable use of the work with that
      Major Component, or to implement a Standard Interface for which an
      implementation is available to the public in source code form.  A
      "Major Component", in this context, means a major essential component
      (kernel, window system, and so on) of the specific operating system
      (if any) on which the executable work runs, or a compiler used to
      produce the work, or an object code interpreter used to run it.

        The "Corresponding Source" for a work in object code form means all
      the source code needed to generate, install, and (for an executable
      work) run the object code and to modify the work, including scripts to
      control those activities.  However, it does not include the work's
      System Libraries, or general-purpose tools or generally available free
      programs which are used unmodified in performing those activities but
      which are not part of the work.  For example, Corresponding Source
      includes interface definition files associated with source files for
      the work, and the source code for shared libraries and dynamically
      linked subprograms that the work is specifically designed to require,
      such as by intimate data communication or control flow between those
      subprograms and other parts of the work.

        The Corresponding Source need not include anything that users
      can regenerate automatically from other parts of the Corresponding
      Source.

        The Corresponding Source for a work in source code form is that
      same work.

        2. Basic Permissions.

        All rights granted under this License are granted for the term of
      copyright on the Program, and are irrevocable provided the stated
      conditions are met.  This License explicitly affirms your unlimited
      permission to run the unmodified Program.  The output from running a
      covered work is covered by this License only if the output, given its
      content, constitutes a covered work.  This License acknowledges your
      rights of fair use or other equivalent, as provided by copyright law.

        You may make, run and propagate covered works that you do not
      convey, without conditions so long as your license otherwise remains
      in force.  You may convey covered works to others for the sole purpose
      of having them make modifications exclusively for you, or provide you
      with facilities for running those works, provided that you comply with
      the terms of this License in conveying all material for which you do
      not control copyright.  Those thus making or running the covered works
      for you must do so exclusively on your behalf, under your direction
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      your copyrighted material outside their relationship with you.

        Conveying under any other circumstances is permitted solely under
      the conditions stated below.  Sublicensing is not allowed; section 10
      makes it unnecessary.

        3. Protecting Users' Legal Rights From Anti-Circumvention Law.

        No covered work shall be deemed part of an effective technological
      measure under any applicable law fulfilling obligations under article
      11 of the WIPO copyright treaty adopted on 20 December 1996, or
      similar laws prohibiting or restricting circumvention of such
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        When you convey a covered work, you waive any legal power to forbid
      circumvention of technological measures to the extent such circumvention
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      the covered work, and you disclaim any intention to limit operation or
      modification of the work as a means of enforcing, against the work's
      users, your or third parties' legal rights to forbid circumvention of
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        4. Conveying Verbatim Copies.

        You may convey verbatim copies of the Program's source code as you
      receive it, in any medium, provided that you conspicuously and
      appropriately publish on each copy an appropriate copyright notice;
      keep intact all notices stating that this License and any
      non-permissive terms added in accord with section 7 apply to the code;
      keep intact all notices of the absence of any warranty; and give all
      recipients a copy of this License along with the Program.

        You may charge any price or no price for each copy that you convey,
      and you may offer support or warranty protection for a fee.

        5. Conveying Modified Source Versions.

        You may convey a work based on the Program, or the modifications to
      produce it from the Program, in the form of source code under the
      terms of section 4, provided that you also meet all of these conditions:

          a) The work must carry prominent notices stating that you modified
          it, and giving a relevant date.

          b) The work must carry prominent notices stating that it is
          released under this License and any conditions added under section
          7.  This requirement modifies the requirement in section 4 to
          "keep intact all notices".

          c) You must license the entire work, as a whole, under this
          License to anyone who comes into possession of a copy.  This
          License will therefore apply, along with any applicable section 7
          additional terms, to the whole of the work, and all its parts,
          regardless of how they are packaged.  This License gives no
          permission to license the work in any other way, but it does not
          invalidate such permission if you have separately received it.

          d) If the work has interactive user interfaces, each must display
          Appropriate Legal Notices; however, if the Program has interactive
          interfaces that do not display Appropriate Legal Notices, your
          work need not make them do so.

        A compilation of a covered work with other separate and independent
      works, which are not by their nature extensions of the covered work,
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      in or on a volume of a storage or distribution medium, is called an
      "aggregate" if the compilation and its resulting copyright are not
      used to limit the access or legal rights of the compilation's users
      beyond what the individual works permit.  Inclusion of a covered work
      in an aggregate does not cause this License to apply to the other
      parts of the aggregate.

        6. Conveying Non-Source Forms.

        You may convey a covered work in object code form under the terms
      of sections 4 and 5, provided that you also convey the
      machine-readable Corresponding Source under the terms of this License,
      in one of these ways:

          a) Convey the object code in, or embodied in, a physical product
          (including a physical distribution medium), accompanied by the
          Corresponding Source fixed on a durable physical medium
          customarily used for software interchange.

          b) Convey the object code in, or embodied in, a physical product
          (including a physical distribution medium), accompanied by a
          written offer, valid for at least three years and valid for as
          long as you offer spare parts or customer support for that product
          model, to give anyone who possesses the object code either (1) a
          copy of the Corresponding Source for all the software in the
          product that is covered by this License, on a durable physical
          medium customarily used for software interchange, for a price no
          more than your reasonable cost of physically performing this
          conveying of source, or (2) access to copy the
          Corresponding Source from a network server at no charge.

          c) Convey individual copies of the object code with a copy of the
          written offer to provide the Corresponding Source.  This
          alternative is allowed only occasionally and noncommercially, and
          only if you received the object code with such an offer, in accord
          with subsection 6b.

          d) Convey the object code by offering access from a designated
          place (gratis or for a charge), and offer equivalent access to the
          Corresponding Source in the same way through the same place at no
          further charge.  You need not require recipients to copy the
          Corresponding Source along with the object code.  If the place to
          copy the object code is a network server, the Corresponding Source
          may be on a different server (operated by you or a third party)
          that supports equivalent copying facilities, provided you maintain
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          Corresponding Source, you remain obligated to ensure that it is
          available for as long as needed to satisfy these requirements.

          e) Convey the object code using peer-to-peer transmission, provided
          you inform other peers where the object code and Corresponding
          Source of the work are being offered to the general public at no
          charge under subsection 6d.

        A separable portion of the object code, whose source code is excluded
      from the Corresponding Source as a System Library, need not be
      included in conveying the object code work.

        A "User Product" is either (1) a "consumer product", which means any
      tangible personal property which is normally used for personal, family,
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        "Installation Information" for a User Product means any methods,
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        If you convey an object code work under this section in, or with, or
      specifically for use in, a User Product, and the conveying occurs as
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      fixed term (regardless of how the transaction is characterized), the
      Corresponding Source conveyed under this section must be accompanied
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      if neither you nor any third party retains the ability to install
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        The requirement to provide Installation Information does not include a
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      protocols for communication across the network.

        Corresponding Source conveyed, and Installation Information provided,
      in accord with this section must be in a format that is publicly
      documented (and with an implementation available to the public in
      source code form), and must require no special password or key for
      unpacking, reading or copying.

        7. Additional Terms.

        "Additional permissions" are terms that supplement the terms of this
      License by making exceptions from one or more of its conditions.
      Additional permissions that are applicable to the entire Program shall
      be treated as though they were included in this License, to the extent
      that they are valid under applicable law.  If additional permissions
      apply only to part of the Program, that part may be used separately
      under those permissions, but the entire Program remains governed by
      this License without regard to the additional permissions.

        When you convey a copy of a covered work, you may at your option
      remove any additional permissions from that copy, or from any part of
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        Notwithstanding any other provision of this License, for material you
      add to a covered work, you may (if authorized by the copyright holders of
      that material) supplement the terms of this License with terms:

          a) Disclaiming warranty or limiting liability differently from the
          terms of sections 15 and 16 of this License; or

          b) Requiring preservation of specified reasonable legal notices or
          author attributions in that material or in the Appropriate Legal
          Notices displayed by works containing it; or

          c) Prohibiting misrepresentation of the origin of that material, or
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        All other non-permissive additional terms are considered "further
      restrictions" within the meaning of section 10.  If the Program as you
      received it, or any part of it, contains a notice stating that it is
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      a further restriction but permits relicensing or conveying under this
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      not survive such relicensing or conveying.

        If you add terms to a covered work in accord with this section, you
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      where to find the applicable terms.

        Additional terms, permissive or non-permissive, may be stated in the
      form of a separately written license, or stated as exceptions;
      the above requirements apply either way.

        8. Termination.

        You may not propagate or modify a covered work except as expressly
      provided under this License.  Any attempt otherwise to propagate or
      modify it is void, and will automatically terminate your rights under
      this License (including any patent licenses granted under the third
      paragraph of section 11).

        However, if you cease all violation of this License, then your
      license from a particular copyright holder is reinstated (a)
      provisionally, unless and until the copyright holder explicitly and
      finally terminates your license, and (b) permanently, if the copyright
      holder fails to notify you of the violation by some reasonable means
      prior to 60 days after the cessation.

        Moreover, your license from a particular copyright holder is
      reinstated permanently if the copyright holder notifies you of the
      violation by some reasonable means, this is the first time you have
      received notice of violation of this License (for any work) from that
      copyright holder, and you cure the violation prior to 30 days after
      your receipt of the notice.

        Termination of your rights under this section does not terminate the
      licenses of parties who have received copies or rights from you under
      this License.  If your rights have been terminated and not permanently
      reinstated, you do not qualify to receive new licenses for the same
      material under section 10.

        9. Acceptance Not Required for Having Copies.

        You are not required to accept this License in order to receive or
      run a copy of the Program.  Ancillary propagation of a covered work
      occurring solely as a consequence of using peer-to-peer transmission
      to receive a copy likewise does not require acceptance.  However,
      nothing other than this License grants you permission to propagate or
      modify any covered work.  These actions infringe copyright if you do
      not accept this License.  Therefore, by modifying or propagating a
      covered work, you indicate your acceptance of this License to do so.

        10. Automatic Licensing of Downstream Recipients.

        Each time you convey a covered work, the recipient automatically
      receives a license from the original licensors, to run, modify and
      propagate that work, subject to this License.  You are not responsible
      for enforcing compliance by third parties with this License.

        An "entity transaction" is a transaction transferring control of an
      organization, or substantially all assets of one, or subdividing an
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        13. The Free Software Foundation may publish revised and/or new
      versions of the Lesser General Public License from time to time.
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      Each version is given a distinguishing version number.  If the Library
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        14. If you wish to incorporate parts of the Library into other free
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                                  NO WARRANTY

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                 How to Apply These Terms to Your New Libraries

        If you develop a new library, and you want it to be of the greatest
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        To apply these terms, attach the following notices to the library.  It is
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          <one line to give the library's name and a brief idea of what it does.>
          Copyright (C) <year>  <name of author>

          This library is free software; you can redistribute it and/or
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          This library is distributed in the hope that it will be useful,
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          You should have received a copy of the GNU Lesser General Public
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      Also add information on how to contact you by electronic and paper mail.

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        Yoyodyne, Inc., hereby disclaims all copyright interest in the
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        <signature of Ty Coon>, 1 April 1990
        Ty Coon, President of Vice

      That's all there is to it!

### The Qt Company LGPL Exception version 1.1

      The Qt Company LGPL Exception version 1.1

      As an additional permission to the GNU Lesser General Public License version
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          (iii) you comply with the terms of Section 6 of the GNU Lesser General
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      Moreover, you may apply this exception to a modified version of the Library,
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      Furthermore, you are not required to apply this additional permission to a
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## Third-Party Attibutions

Qbs contains third-party code, which we gratefully acknowledge:

biplist | BSD 3-clause "New" or "Revised" License
dmgbuild | MIT License
ds_store | MIT License
mac_alias | MIT License

Appendix B: Migrating from Other Build Systems