buildroot make sdk

To build an SDK using Buildroot, you can follow these steps:

1. Configure your Buildroot build environment by running `make menuconfig` and selecting the appropriate options for your target architecture and packages.

2. Build the root filesystem by running `make`.

3. Once the build is complete, run `make sdk` to create the SDK.

4. The SDK will be located in the `output/host` directory.

Note that the `make sdk` command will create a tarball that contains the libraries, headers, and tools needed to cross-compile applications for your target system. You can then distribute this SDK to other developers who want to create applications for your system.

Also, keep in mind that the process of building an SDK with Buildroot may vary depending on the version of Buildroot you are using and the specific configuration of your system. It's always a good idea to consult the Buildroot documentation for more detailed instructions.