| // -*- mode:doc; -*- |
| // vim: set syntax=asciidoc: |
| |
| [[customize-packages]] |
| === Adding project-specific packages |
| |
| In general, any new package should be added directly in the +package+ |
| directory and submitted to the Buildroot upstream project. How to add |
| packages to Buildroot in general is explained in full detail in |
| xref:adding-packages[] and will not be repeated here. However, your |
| project may need some proprietary packages that cannot be upstreamed. |
| This section will explain how you can keep such project-specific |
| packages in a project-specific directory. |
| |
| As shown in xref:customize-dir-structure[], the recommended location for |
| project-specific packages is +package/<company>/+. If you are using the |
| br2-external tree feature (see xref:outside-br-custom[]) the recommended |
| location is to put them in a sub-directory named +package/+ in your |
| br2-external tree. |
| |
| However, Buildroot will not be aware of the packages in this location, |
| unless we perform some additional steps. As explained in |
| xref:adding-packages[], a package in Buildroot basically consists of two |
| files: a +.mk+ file (describing how to build the package) and a |
| +Config.in+ file (describing the configuration options for this |
| package). |
| |
| Buildroot will automatically include the +.mk+ files in first-level |
| subdirectories of the +package+ directory (using the pattern |
| +package/\*/*.mk+). If we want Buildroot to include +.mk+ files from |
| deeper subdirectories (like +package/<company>/package1/+) then we |
| simply have to add a +.mk+ file in a first-level subdirectory that |
| includes these additional +.mk+ files. Therefore, create a file |
| +package/<company>/<company>.mk+ with following contents (assuming you |
| have only one extra directory level below +package/<company>/+): |
| |
| ---- |
| include $(sort $(wildcard package/<company>/*/*.mk)) |
| ---- |
| |
| For the +Config.in+ files, create a file +package/<company>/Config.in+ |
| that includes the +Config.in+ files of all your packages. An exhaustive |
| list has to be provided since wildcards are not supported in the source command of kconfig. |
| For example: |
| |
| ---- |
| source "package/<company>/package1/Config.in" |
| source "package/<company>/package2/Config.in" |
| ---- |
| |
| Include this new file +package/<company>/Config.in+ from |
| +package/Config.in+, preferably in a company-specific menu to make |
| merges with future Buildroot versions easier. |
| |
| If using a br2-external tree, refer to xref:outside-br-custom[] for how |
| to fill in those files. |
