| // -*- mode:doc; -*- |
| // vim: set syntax=asciidoc: |
| |
| [[br2-external-converting]] |
| == Converting old br2-external trees |
| |
| Before Buildroot 2016.11, it was possible to use only one br2-external |
| tree at once. With Buildroot 2016.11 came the possibility to use more |
| than one simultaneously (for details, see xref:outside-br-custom[]). |
| |
| This however means that older br2-external trees are not usable as-is. |
| A minor change has to be made: adding a name to your br2-external tree. |
| |
| This can be done very easily in just a few steps: |
| |
| * First, create a new file named +external.desc+, at the root of your |
| br2-external tree, with a single line defining the name of your |
| br2-external tree: |
| + |
| ---- |
| $ echo 'name: NAME_OF_YOUR_TREE' >external.desc |
| ---- |
| + |
| .Note |
| Be careful when choosing a name: It has to be unique and be made |
| with only ASCII characters from the set +[A-Za-z0-9_]+. |
| |
| * Then, change every occurence of +BR2_EXTERNAL+ in your br2-external |
| tree with the new variable: |
| + |
| ---- |
| $ find . -type f | xargs sed -i 's/BR2_EXTERNAL/BR2_EXTERNAL_NAME_OF_YOUR_TREE_PATH/g' |
| ---- |
| |
| Now, your br2-external tree can be used with Buildroot 2016.11 onward. |
| |
| .Note: |
| This change makes your br2-external tree incompatible with Buildroot |
| before 2016.11. |
