See https://lupyuen.github.io/articles/nuttx

bl602-nuttx-config.log

user@beacondev3:~/nuttx/nuttx$ ./tools/configure.sh bl602evb:nsh
  Copy files
  Select CONFIG_HOST_LINUX=y
  Refreshing...
make[1]: Entering directory '/home/user/nuttx/nuttx'
make[2]: Entering directory '/home/user/nuttx/nuttx/boards'
make[2]: Leaving directory '/home/user/nuttx/nuttx/boards'
make[2]: Entering directory '/home/user/nuttx/apps'
make[3]: Entering directory '/home/user/nuttx/apps/platform'
make[3]: Leaving directory '/home/user/nuttx/apps/platform'
make[3]: Entering directory '/home/user/nuttx/apps/builtin'
make[3]: Leaving directory '/home/user/nuttx/apps/builtin'
make[2]: Leaving directory '/home/user/nuttx/apps'
make[2]: Entering directory '/home/user/nuttx/nuttx/graphics'
make[3]: Entering directory '/home/user/nuttx/nuttx/graphics/nxglib'
make[3]: Leaving directory '/home/user/nuttx/nuttx/graphics/nxglib'
make[3]: Entering directory '/home/user/nuttx/nuttx/graphics/nxglib'
make[3]: Leaving directory '/home/user/nuttx/nuttx/graphics/nxglib'
make[3]: Entering directory '/home/user/nuttx/nuttx/graphics/nxglib'
make[3]: Leaving directory '/home/user/nuttx/nuttx/graphics/nxglib'
make[2]: Leaving directory '/home/user/nuttx/nuttx/graphics'
make[1]: Leaving directory '/home/user/nuttx/nuttx'
LN: include/arch to arch/risc-v/include
LN: include/arch/board to /home/user/nuttx/nuttx/boards/risc-v/bl602/bl602evb/include
LN: include/arch/chip to arch/risc-v/include/bl602
LN: arch/risc-v/src/board to /home/user/nuttx/nuttx/boards/risc-v/bl602/bl602evb/src
LN: arch/risc-v/src/chip to arch/risc-v/src/bl602
LN: /home/user/nuttx/nuttx/drivers/platform to /home/user/nuttx/nuttx/drivers/dummy
make[1]: Entering directory '/home/user/nuttx/nuttx/boards'
make[1]: Leaving directory '/home/user/nuttx/nuttx/boards'
make[1]: Entering directory '/home/user/nuttx/apps'
make[2]: Entering directory '/home/user/nuttx/apps/platform'
LN: platform/board to /home/user/nuttx/apps/platform/dummy
make[2]: Leaving directory '/home/user/nuttx/apps/platform'
make[1]: Leaving directory '/home/user/nuttx/apps'
make[1]: Entering directory '/home/user/nuttx/apps'
make[1]: Nothing to be done for 'preconfig'.
make[1]: Leaving directory '/home/user/nuttx/apps'
#
# configuration written to .config
#