menuconfig CROSS_GDB bool "cross gdb " help GDB is a source-level debugger, capable of breaking programs at any specific line, displaying variable values, and determining where errors occurred. Currently, it works for C, C++, Fortran, Modula 2 and Java programs. A must-have for any serious programmer. config CROSS_GDB_VERSION depends on CROSS_GDB string prompt "gdb version" default "6.8" help Specify the version of gdb here.