Compile Error
Raspberry pi 4
Ubuntu 21.10
GCC vesrion:  11.2.0
Binutils version : 2.37

[100%] Linking C executable box64
/usr/bin/ld: CMakeFiles/box64.dir/src/libtools/threads.c.o: in function «my__pthread_cleanup_push_defer»:
/home/user/box64/src/libtools/threads.c:666: undefined reference to «_pthread_cleanup_push_defer»
/usr/bin/ld: CMakeFiles/box64.dir/src/libtools/threads.c.o: in function «my__pthread_cleanup_pop_restore»:
/home/user/box64/src/libtools/threads.c:678: undefined reference to«_pthread_cleanup_pop_restore»
collect2: error: ld returned 1 exit status
make[2]: *** [CMakeFiles/box64.dir/build.make:3212: box64] Error 1
make[1]: *** [CMakeFiles/Makefile2:137: CMakeFiles/box64.dir/all] Error 2
make: *** [Makefile:182: all] Error 2