11e548f1e6
... and move the br2-external migration to it. Reported-by: Adam Duskett <aduskett@gmail.com> Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr> Cc: Adam Duskett <aduskett@gmail.com> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
47 lines
1.4 KiB
Plaintext
47 lines
1.4 KiB
Plaintext
// -*- mode:doc; -*-
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// vim: set syntax=asciidoc:
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[[migrating-from-ol-versions]]
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== Migrating from older Buildroot versions
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Some versions have introduced backward incompatibilities. This section
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explains those incompatibilities, and for each explains what to do to
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complete the migration.
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[[br2-external-converting]]
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=== Migrating to 2016.11
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Before Buildroot 2016.11, it was possible to use only one br2-external
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tree at once. With Buildroot 2016.11 came the possibility to use more
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than one simultaneously (for details, see xref:outside-br-custom[]).
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This however means that older br2-external trees are not usable as-is.
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A minor change has to be made: adding a name to your br2-external tree.
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This can be done very easily in just a few steps:
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* First, create a new file named +external.desc+, at the root of your
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br2-external tree, with a single line defining the name of your
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br2-external tree:
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+
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----
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$ echo 'name: NAME_OF_YOUR_TREE' >external.desc
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----
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+
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.Note
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Be careful when choosing a name: It has to be unique and be made
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with only ASCII characters from the set +[A-Za-z0-9_]+.
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* Then, change every occurence of +BR2_EXTERNAL+ in your br2-external
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tree with the new variable:
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+
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----
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$ find . -type f | xargs sed -i 's/BR2_EXTERNAL/BR2_EXTERNAL_NAME_OF_YOUR_TREE_PATH/g'
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----
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Now, your br2-external tree can be used with Buildroot 2016.11 onward.
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.Note:
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This change makes your br2-external tree incompatible with Buildroot
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before 2016.11.
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