Pi 5 with Navigator

[v8dave (Dave McLaughlin)]

@williangalvani

If you are running into glibc issues, I recommend using gcc 10.2.
I’m using this one (sharing because I was told it has been hard to find lately):
gcc-arm-10.2-2020.11-x86_64-arm-none-linux-gnueabihf.tar.xz

I installed this and it gives the following error when I try to select it as the toochain.

dave@HUEY:~/ardupilot$ ./waf configure --board=navigator --toolchain=/opt/gcc-arm-10.2-2020.11-x86_64-arm-none-linux-gnueabihf
Setting top to                           : /home/dave/ardupilot
Setting out to                           : /home/dave/ardupilot/build
Autoconfiguration                        : enabled
Checking for program 'python'            : /usr/bin/python3
Checking for python version >= 3.6.9     : 3.10.6
Setting board to                         : navigator
Using toolchain                          : /opt/gcc-arm-10.2-2020.11-x86_64-arm-none-linux-gnueabihf
Could not find the program ['/opt/gcc-arm-10.2-2020.11-x86_64-arm-none-linux-gnueabihf-ar']
(complete log in /home/dave/ardupilot/build/config.log)

I then get this error when I try to build with ./waf sub

../../libraries/AP_HAL_Linux/Thread.cpp: In member function ‘bool Linux::Thread::set_stack_size(size_t)’:
../../libraries/AP_HAL_Linux/Thread.cpp:248:44: error: ‘PTHREAD_STACK_MIN’ was not declared in this scope
     _stack_size = MAX(stack_size, (size_t) PTHREAD_STACK_MIN);