| Customizing the uClibc configuration |
| ------------------------------------ |
| [[uclibc-custom]] |
| |
| Just like xref:busybox-custom[BusyBox], http://www.uclibc.org/[uClibc] |
| offers a lot of configuration options. They allow you to select |
| various functionalities depending on your needs and limitations. |
| |
| The easiest way to modify the configuration of uClibc is to |
| follow these steps: |
| |
| * Do an initial compilation of Buildroot without trying to customize |
| uClibc. |
| |
| * Invoke +make uclibc-menuconfig+. The nice configuration assistant, |
| similar to the one used in the Linux kernel or Buildroot, |
| appears. Make your configuration changes as appropriate. |
| |
| * Copy the +$(O)/toolchain/uclibc-VERSION/.config+ file to a different |
| place (like +toolchain/uClibc/uClibc-myconfig.config+, or |
| +board/mymanufacturer/myboard/uClibc.config+) and adjust the uClibc |
| configuration (configuration option +BR2_UCLIBC_CONFIG+) to use this |
| configuration instead of the default one. |
| |
| * Run the compilation of Buildroot again. |
| |
| Otherwise, you can simply change +toolchain/uClibc/uClibc.config+, |
| without running the configuration assistant. |
| |
| If you want to use an existing config file for uclibc, then see |
| xref:env-vars[]. |
| |
