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| author |   Scott Rifenbark <srifenbark@gmail.com> | 2016-09-13 11:40:43 -0700 |
|---|---|---|
| committer |   Richard Purdie <richard.purdie@linuxfoundation.org> | 2016-09-23 15:27:34 +0100 |
| commit | 4824bb4fdaf0778620658d1a901509ad76ad2092 (patch) | |
| tree | bb1f5be243cc20d712a0e5e53432f155ec5b5660 /documentation/ref-manual | |
| parent | 8bc6c1c2c817fdc4ee12e165489aab6885fa9e9c (diff) | |
| download | openembedded-core-contrib-4824bb4fdaf0778620658d1a901509ad76ad2092.tar.gz | |
ref-manual: Added note to PREFERRED_VERSION
fixes [YOCTO #10252]
Added a note to help avoid confusion regarding the version
specification used in PREFERRED_VERSION.
(From yocto-docs rev: 38edc25b04c1a6d673ceb25f5548898d5b63b120)
Signed-off-by: Scott Rifenbark <srifenbark@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Diffstat (limited to 'documentation/ref-manual')
| -rw-r--r-- | documentation/ref-manual/ref-variables.xml | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/documentation/ref-manual/ref-variables.xml b/documentation/ref-manual/ref-variables.xml index 188cd74935..21c1e42388 100644 --- a/documentation/ref-manual/ref-variables.xml +++ b/documentation/ref-manual/ref-variables.xml @@ -9999,6 +9999,31 @@ recipes-graphics/xorg-font/font-alias_1.0.3.bb:PR = "${INC_PR}.3" PREFERRED_VERSION_python = "3.4.0" PREFERRED_VERSION_linux-yocto = "3.19%" </literallayout> + <note> + The specified version is matched against + <link linkend='var-PV'><filename>PV</filename></link>, + which does not necessarily match the version part of + the recipe's filename. + For example, consider two recipes + <filename>foo_1.2.bb</filename> and + <filename>foo_git.bb</filename> where + <filename>foo_git.bb</filename> contains the following + assignment: + <literallayout class='monospaced'> + PV = "1.1+git${SRCPV}" + </literallayout> + In this case, the correct way to select + <filename>foo_git.bb</filename> is by using an + assignment such as the following: + <literallayout class='monospaced'> + PREFERRED_VERSION_foo = "1.1+git%" + </literallayout> + Compare that previous example against the following + incorrect example, which does not work: + <literallayout class='monospaced'> + PREFERRED_VERSION_foo = "git" + </literallayout> + </note> Sometimes the <filename>PREFERRED_VERSION</filename> variable can be set by configuration files in a way that is hard to change. |