If you deselect an app usingmake menuconfigthe build always fails, even if you do a make clean and a make apps_clean.
The only solution is a make distclean which doesn't seem right to me?
Foe example, enabling then disabling the tone generator example app gies the following error:
LD: nuttx
arm-none-eabi-ld: /home/tim/designs/nuttx/nuttx/staging/libapps.a(builtin_list.c.home.tim.designs.nuttx.apps.builtin.o):(.rodata+0x34): undefined reference to `audio_rttl_main'