Yocto Project licenses for LIC FILES CHKSUM

Yocto Project pre-defined licenses for LIC FILES CHKSUM

When a new Yocto Project recipe is created it is mandatory to specify the proper license and the checksum for the license description file.

All the pre-defined license files are provided by the OpenEmbedded Core component and are located into the Yocto Project directory

meta/files/common-licenses

The variable LIC_FILES_CHKSUM defines the URI pointing to the license file in the source code as well as its checksum.

The licenses available are listed below (version dunfell):

AAL                             CECILL-C                          MS-RL
Adobe                           ClArtistic                        Multics
AFL-1.2                         CPAL-1.0                          NASA-1.3
AFL-2.0                         CPL-1.0                           Nauman
AFL-2.1                         CUA-OPL-1.0                       NCSA
AFL-3.0                         DSSSL                             NGPL
AGPL-3.0                        ECL-1.0                           Nokia
ANTLR-PD                        ECL-2.0                           NPOSL-3.0
Apache-1.0                      eCos-2.0                          NTP
Apache-1.1                      EDL-1.0                           OASIS
Apache-2.0                      EFL-1.0                           OCLC-2.0
Apache-2.0-with-LLVM-exception  EFL-2.0                           ODbL-1.0
APL-1.0                         Entessa                           OFL-1.1
APSL-1.0                        EPL-1.0                           OGTSL
APSL-1.1                        EPL-2.0                           OLDAP-2.8
APSL-1.2                        ErlPL-1.1                         OpenSSL
APSL-2.0                        EUDatagrid                        OSL-1.0
Artistic-1.0                    EUPL-1.0                          OSL-2.0
Artistic-2.0                    EUPL-1.1                          OSL-3.0
BitstreamVera                   Fair                              ParaTypeFFL-1.3
BSD                             Frameworx-1.0                     PD
BSD-0-Clause                    FreeType                          PHP-3.0
BSD-1-Clause                    FSF-Unlimited                     pkgconf
BSD-2-Clause                    GFDL-1.1                          PostgreSQL
BSD-2-Clause-Patent             GFDL-1.2                          Proprietary
BSD-3-Clause                    GFDL-1.3                          PSF-2.0
BSD-4-Clause                    GPL-1.0                           Python-2.0
BSL-1.0                         GPL-2.0                           QPL-1.0
bzip2-1.0.4                     GPL-2.0-with-autoconf-exception   RHeCos-1
bzip2-1.0.6                     GPL-2.0-with-classpath-exception  RHeCos-1.1
CATOSL-1.1                      GPL-2.0-with-font-exception       RPL-1.5
CC0-1.0                         GPL-2.0-with-GCC-exception        RPSL-1.0
CC-BY-1.0                       GPL-2.0-with-OpenSSL-exception    RSCPL
CC-BY-2.0                       GPL-2-with-bison-exception        Ruby
CC-BY-2.5                       GPL-3.0                           SAX-PD
CC-BY-3.0                       GPL-3.0-with-autoconf-exception   SGI-1
CC-BY-NC-1.0                    GPL-3.0-with-GCC-exception        Simple-2.0
CC-BY-NC-2.0                    gSOAP-1                           Sleepycat
CC-BY-NC-2.5                    gSOAP-1.3b                        SMAIL_GPL
CC-BY-NC-3.0                    HPND                              SPL-1.0
CC-BY-NC-ND-1.0                 ICU                               SugarCRM-1
CC-BY-NC-ND-2.0                 Intel                             SugarCRM-1.1.3
CC-BY-NC-ND-2.5                 IPA                               tcl
CC-BY-NC-ND-3.0                 IPL-1.0                           UCB
CC-BY-NC-SA-1.0                 ISC                               unfs3
CC-BY-NC-SA-2.0                 LGPL-2.0                          vim
CC-BY-NC-SA-2.5                 LGPL-2.1                          VSL-1.0
CC-BY-NC-SA-3.0                 LGPL-3.0                          W3C
CC-BY-ND-1.0                    Libpng                            Watcom-1.0
CC-BY-ND-2.0                    LPL-1.02                          WXwindows
CC-BY-ND-2.5                    LPPL-1.0                          XFree86-1.0
CC-BY-ND-3.0                    LPPL-1.1                          XFree86-1.1
CC-BY-SA-1.0                    LPPL-1.2                          Xnet
CC-BY-SA-2.0                    LPPL-1.3c                         XSL
CC-BY-SA-2.5                    MirOS                             YPL-1.1
CC-BY-SA-3.0                    MIT                               Zimbra-1.3
CC-BY-SA-4.0                    Motosoto                          Zlib
CDDL-1.0                        MPL-1.0                           ZPL-1.1
CECILL-1.0                      MPL-1.1                           ZPL-2.0
CECILL-2.0                      MPL-2.0                           ZPL-2.1
CECILL-B                        MS-PL

License files must have their own checksum. The typical usage could be

LICENSE = "GPLv2"
LIC_FILES_CHKSUM = "file://${COREBASE}/meta/files/common-licenses/GPL-2.0;md5=801f80980d171dd6425610833a22dbe6"

or

LICENSE = "GPLv2"
LIC_FILES_CHKSUM ?= "file://${COMMON_LICENSE_DIR}/GPL-2.0;md5=801f80980d171dd6425610833a22dbe6"

LIC_FILES_CHKSUM is mandatory in every recipe, unless LICENSE is set to CLOSED.

LICENSE = "CLOSED"
# No need for LIC_FILES_CHKSUM valiable in this case