It seems to be a linking issue, interesting.
``` Debian 10: $ ldd /usr/sbin/kamcmd linux-vdso.so.1 (0x00007ffd8a1ed000) libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f11e0b82000) libresolv.so.2 => /lib/x86_64-linux-gnu/libresolv.so.2 (0x00007f11e0b68000) libreadline.so.7 => /lib/x86_64-linux-gnu/libreadline.so.7 (0x00007f11e091b000) libncurses.so.6 => /lib/x86_64-linux-gnu/libncurses.so.6 (0x00007f11e08f1000) libtinfo.so.6 => /lib/x86_64-linux-gnu/libtinfo.so.6 (0x00007f11e08c3000) libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f11e08a2000) libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f11e06e0000) /lib64/ld-linux-x86-64.so.2 (0x00007f11e0ba5000)
Debian 11: $ ldd /usr/sbin/kamcmd linux-vdso.so.1 (0x00007ffd4bc6c000) libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007fb3d1245000) libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007fb3d1070000) /lib64/ld-linux-x86-64.so.2 (0x00007fb3d127e000) ```