choice prompt "glibc version" depends on TOOLCHAINOPTS && USE_GLIBC default GLIBC_USE_VERSION_2_23 help Select the version of glibc you wish to use. config GLIBC_USE_VERSION_2_11 bool "glibc 2.11" select GLIBC_VERSION_2_11 config GLIBC_USE_VERSION_2_22 bool "glibc 2.22" select GLIBC_VERSION_2_22 config GLIBC_USE_VERSION_2_23 bool "glibc 2.23" select GLIBC_VERSION_2_23 endchoice