buildroot/package/bash-completion/Config.in

config BR2_PACKAGE_BASH_COMPLETION
	bool "bash completion"
	depends on BR2_PACKAGE_BASH
	help
	  Add bash completion infrastructure.

	  The bash completion infrastructure is enabled by
	  /etc/profile.d/bash_completion.sh, which is normally
	  sourced by /etc/profile.

	  If the system does not use the /etc/profile.d directory
	  mechanism, the /etc/profile.d/bash_completion.sh script can
	  be sourced from /etc/bashrc or ~/.bashrc.

	  https://github.com/scop/bash-completion