>>> nanocom 1.0 Extracting
gzip -d -c /home/buildroot/instance-0/dl/nanocom/nanocom.tar.gz | /home/buildroot/instance-0/output-1/host/bin/tar --strip-components=0 -C /home/buildroot/instance-0/output-1/build/nanocom-1.0   -xf -
>>> nanocom 1.0 Patching

Applying 0001-fix-build-with-gcc-10.patch using patch: 
patching file nanocom.c
patching file nanocom.h
>>> nanocom 1.0 Configuring
>>> nanocom 1.0 Building
GIT_DIR=. PATH="/home/buildroot/instance-0/output-1/host/bin:/home/buildroot/instance-0/output-1/host/sbin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin" /usr/bin/make -j17 CC="/home/buildroot/instance-0/output-1/host/bin/nios2-linux-gcc -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64  -Og -g0  " -C /home/buildroot/instance-0/output-1/build/nanocom-1.0
make[1]: Entering directory '/home/buildroot/instance-0/output-1/build/nanocom-1.0'
rm -rf *.o nanocom
/home/buildroot/instance-0/output-1/host/bin/nios2-linux-gcc -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64  -Og -g0   mux.c nanocom.c menu.c -o nanocom
menu.c: In function 'process_main_menu':
menu.c:176:9: error: implicit declaration of function 'display_state'; did you mean 'display_status'? [-Wimplicit-function-declaration]
  176 |         display_state();
      |         ^~~~~~~~~~~~~
      |         display_status
make[1]: *** [Makefile:20: nanocom] Error 1
make[1]: Leaving directory '/home/buildroot/instance-0/output-1/build/nanocom-1.0'
make: *** [package/pkg-generic.mk:289: /home/buildroot/instance-0/output-1/build/nanocom-1.0/.stamp_built] Error 2
make: Leaving directory '/home/buildroot/instance-0/buildroot'