srt: Compiling on Raspberry Pi 4B: Error 2

Anyone has issues compiling srt on a Raspberry Pi 4B?

When looking around, it seems installing srt on a Raspberry Pi usually isn’t a problem. But somehow it’s not working for me. I followed the instructions for Ubuntu on the README and that seems to be enough for most people:

sudo apt-get update
sudo apt-get upgrade
sudo apt-get install tclsh pkg-config cmake libssl-dev build-essential
./configure
make

My installation fails at make with Error 2. I’ve pasted the output of ./configure and make below:

Running: cmake .
-- The C compiler identification is GNU 8.3.0
-- The CXX compiler identification is GNU 8.3.0
-- Check for working C compiler: /usr/bin/cc
-- Check for working C compiler: /usr/bin/cc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Detecting C compile features
-- Detecting C compile features - done
-- Check for working CXX compiler: /usr/bin/c++
-- Check for working CXX compiler: /usr/bin/c++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Found PkgConfig: /usr/bin/pkg-config (found version "0.29") 
-- Looking for pthread.h
-- Looking for pthread.h - found
-- Performing Test CMAKE_HAVE_LIBC_PTHREAD
-- Performing Test CMAKE_HAVE_LIBC_PTHREAD - Failed
-- Looking for pthread_create in pthreads
-- Looking for pthread_create in pthreads - not found
-- Looking for pthread_create in pthread
-- Looking for pthread_create in pthread - found
-- Found Threads: TRUE  
-- BUILD TYPE: Release
-- LOGGING: ENABLED
-- USE_BUSY_WAITING: OFF (default)
-- No WITH_COMPILER_PREFIX - using C++ compiler /usr/bin/c++
-- Looking for inet_pton
-- Looking for inet_pton - found
-- Checking for module 'openssl libcrypto'
--   Found openssl libcrypto, version 1.1.1d;1.1.1d
-- SSL via pkg-config: -L  -I  -l;ssl;crypto
-- ENCRYPTION: ENABLED, using: openssl libcrypto
-- SSL libraries: ssl;crypto
-- COMPILER: GNU (/usr/bin/c++) - GNU compat
-- NOTE: GNU 8.3.0 - assuming default C++11.
-- STDCXX_SYNC: OFF
-- DETECTED SYSTEM: LINUX;  LINUX=1
-- APP: srt_virtual: using default C++ standard
-- ADDING TRANSITIVE LINK DEP to:srt_shared : -lpthread 
-- ADDING TRANSITIVE LINK DEP to:srt_static : -lpthread 
-- INSTALL DIRS: bin=bin lib=lib shlib=lib include=include
-- APPS: ENABLED, std=
-- APP: srtsupport_virtual: using default C++ standard
-- APP: srt-live-transmit: using default C++ standard
-- APP: srt-file-transmit: using default C++ standard
-- APP: srt-tunnel: using default C++ standard
-- DEVEL APPS (testing): DISABLED
-- Configuring done
-- Generating done
-- Build files have been written to: /root/srt
Scanning dependencies of target srt_virtual
[  1%] Building CXX object CMakeFiles/srt_virtual.dir/srtcore/api.cpp.o
[  3%] Building CXX object CMakeFiles/srt_virtual.dir/srtcore/buffer.cpp.o
[  5%] Building CXX object CMakeFiles/srt_virtual.dir/srtcore/cache.cpp.o
[  7%] Building CXX object CMakeFiles/srt_virtual.dir/srtcore/channel.cpp.o
[  9%] Building CXX object CMakeFiles/srt_virtual.dir/srtcore/common.cpp.o
[ 11%] Building CXX object CMakeFiles/srt_virtual.dir/srtcore/core.cpp.o
In file included from /usr/include/c++/8/deque:66,
                 from /usr/include/c++/8/queue:60,
                 from /root/srt/srtcore/queue.h:63,
                 from /root/srt/srtcore/core.cpp:65:
/usr/include/c++/8/bits/deque.tcc: In function ‘std::_Deque_iterator<_Tp, _Tp&, _Tp*> std::move_backward(std::_Deque_iterator<_Tp, const _Tp&, const _Tp*>, std::_Deque_iterator<_Tp, const _Tp&, const _Tp*>, std::_Deque_iterator<_Tp, _Tp&, _Tp*>) [with _Tp = CRcvFreshLoss]’:
/usr/include/c++/8/bits/deque.tcc:1072:5: note: parameter passing for argument of type ‘std::_Deque_iterator<CRcvFreshLoss, const CRcvFreshLoss&, const CRcvFreshLoss*>’ changed in GCC 7.1
     move_backward(_Deque_iterator<_Tp, const _Tp&, const _Tp*> __first,
     ^~~~~~~~~~~~~
/usr/include/c++/8/bits/deque.tcc:1072:5: note: parameter passing for argument of type ‘std::_Deque_iterator<CRcvFreshLoss, const CRcvFreshLoss&, const CRcvFreshLoss*>’ changed in GCC 7.1
/usr/include/c++/8/bits/deque.tcc: In function ‘std::_Deque_iterator<_Tp, _Tp&, _Tp*> std::move(std::_Deque_iterator<_Tp, const _Tp&, const _Tp*>, std::_Deque_iterator<_Tp, const _Tp&, const _Tp*>, std::_Deque_iterator<_Tp, _Tp&, _Tp*>) [with _Tp = CRcvFreshLoss]’:
/usr/include/c++/8/bits/deque.tcc:1049:5: note: parameter passing for argument of type ‘std::_Deque_iterator<CRcvFreshLoss, const CRcvFreshLoss&, const CRcvFreshLoss*>’ changed in GCC 7.1
     move(_Deque_iterator<_Tp, const _Tp&, const _Tp*> __first,
     ^~~~
/usr/include/c++/8/bits/deque.tcc:1049:5: note: parameter passing for argument of type ‘std::_Deque_iterator<CRcvFreshLoss, const CRcvFreshLoss&, const CRcvFreshLoss*>’ changed in GCC 7.1
In file included from /usr/include/c++/8/deque:64,
                 from /usr/include/c++/8/queue:60,
                 from /root/srt/srtcore/queue.h:63,
                 from /root/srt/srtcore/core.cpp:65:
/usr/include/c++/8/bits/stl_deque.h: In member function ‘std::deque<_Tp, _Alloc>::iterator std::deque<_Tp, _Alloc>::_M_erase(std::deque<_Tp, _Alloc>::iterator, std::deque<_Tp, _Alloc>::iterator) [with _Tp = CRcvFreshLoss; _Alloc = std::allocator<CRcvFreshLoss>]’:
/usr/include/c++/8/bits/stl_deque.h:447:13: note: parameter passing for argument of type ‘std::_Deque_iterator<CRcvFreshLoss, const CRcvFreshLoss&, const CRcvFreshLoss*>’ changed in GCC 7.1
     __result); }
             ^
/usr/include/c++/8/bits/stl_deque.h:447:13: note: parameter passing for argument of type ‘std::_Deque_iterator<CRcvFreshLoss, const CRcvFreshLoss&, const CRcvFreshLoss*>’ changed in GCC 7.1
/usr/include/c++/8/bits/stl_deque.h:447:13: note: parameter passing for argument of type ‘std::_Deque_iterator<CRcvFreshLoss, const CRcvFreshLoss&, const CRcvFreshLoss*>’ changed in GCC 7.1
/usr/include/c++/8/bits/stl_deque.h:430:18: note: parameter passing for argument of type ‘std::_Deque_iterator<CRcvFreshLoss, const CRcvFreshLoss&, const CRcvFreshLoss*>’ changed in GCC 7.1
          __result); }
                  ^
/usr/include/c++/8/bits/stl_deque.h:430:18: note: parameter passing for argument of type ‘std::_Deque_iterator<CRcvFreshLoss, const CRcvFreshLoss&, const CRcvFreshLoss*>’ changed in GCC 7.1
/usr/include/c++/8/bits/stl_deque.h:430:18: note: parameter passing for argument of type ‘std::_Deque_iterator<CRcvFreshLoss, const CRcvFreshLoss&, const CRcvFreshLoss*>’ changed in GCC 7.1
/usr/include/c++/8/bits/stl_deque.h: In member function ‘std::deque<_Tp, _Alloc>::iterator std::deque<_Tp, _Alloc>::_M_erase(std::deque<_Tp, _Alloc>::iterator) [with _Tp = CRcvFreshLoss; _Alloc = std::allocator<CRcvFreshLoss>]’:
/usr/include/c++/8/bits/stl_deque.h:447:13: note: parameter passing for argument of type ‘std::_Deque_iterator<CRcvFreshLoss, const CRcvFreshLoss&, const CRcvFreshLoss*>’ changed in GCC 7.1
     __result); }
             ^
/usr/include/c++/8/bits/stl_deque.h:447:13: note: parameter passing for argument of type ‘std::_Deque_iterator<CRcvFreshLoss, const CRcvFreshLoss&, const CRcvFreshLoss*>’ changed in GCC 7.1
/usr/include/c++/8/bits/stl_deque.h:447:13: note: parameter passing for argument of type ‘std::_Deque_iterator<CRcvFreshLoss, const CRcvFreshLoss&, const CRcvFreshLoss*>’ changed in GCC 7.1
/usr/include/c++/8/bits/stl_deque.h:430:18: note: parameter passing for argument of type ‘std::_Deque_iterator<CRcvFreshLoss, const CRcvFreshLoss&, const CRcvFreshLoss*>’ changed in GCC 7.1
          __result); }
                  ^
/usr/include/c++/8/bits/stl_deque.h:430:18: note: parameter passing for argument of type ‘std::_Deque_iterator<CRcvFreshLoss, const CRcvFreshLoss&, const CRcvFreshLoss*>’ changed in GCC 7.1
/usr/include/c++/8/bits/stl_deque.h:430:18: note: parameter passing for argument of type ‘std::_Deque_iterator<CRcvFreshLoss, const CRcvFreshLoss&, const CRcvFreshLoss*>’ changed in GCC 7.1
/usr/include/c++/8/bits/stl_deque.h: In member function ‘std::deque<_Tp, _Alloc>::iterator std::deque<_Tp, _Alloc>::_M_insert_aux(std::deque<_Tp, _Alloc>::iterator, _Args&& ...) [with _Args = {CRcvFreshLoss}; _Tp = CRcvFreshLoss; _Alloc = std::allocator<CRcvFreshLoss>]’:
/usr/include/c++/8/bits/stl_deque.h:430:18: note: parameter passing for argument of type ‘std::_Deque_iterator<CRcvFreshLoss, const CRcvFreshLoss&, const CRcvFreshLoss*>’ changed in GCC 7.1
          __result); }
                  ^
/usr/include/c++/8/bits/stl_deque.h:430:18: note: parameter passing for argument of type ‘std::_Deque_iterator<CRcvFreshLoss, const CRcvFreshLoss&, const CRcvFreshLoss*>’ changed in GCC 7.1
/usr/include/c++/8/bits/stl_deque.h:430:18: note: parameter passing for argument of type ‘std::_Deque_iterator<CRcvFreshLoss, const CRcvFreshLoss&, const CRcvFreshLoss*>’ changed in GCC 7.1
/usr/include/c++/8/bits/stl_deque.h:447:13: note: parameter passing for argument of type ‘std::_Deque_iterator<CRcvFreshLoss, const CRcvFreshLoss&, const CRcvFreshLoss*>’ changed in GCC 7.1
     __result); }
             ^
/usr/include/c++/8/bits/stl_deque.h:447:13: note: parameter passing for argument of type ‘std::_Deque_iterator<CRcvFreshLoss, const CRcvFreshLoss&, const CRcvFreshLoss*>’ changed in GCC 7.1
/usr/include/c++/8/bits/stl_deque.h:447:13: note: parameter passing for argument of type ‘std::_Deque_iterator<CRcvFreshLoss, const CRcvFreshLoss&, const CRcvFreshLoss*>’ changed in GCC 7.1
[ 13%] Building CXX object CMakeFiles/srt_virtual.dir/srtcore/crypto.cpp.o
[ 15%] Building CXX object CMakeFiles/srt_virtual.dir/srtcore/epoll.cpp.o
[ 16%] Building CXX object CMakeFiles/srt_virtual.dir/srtcore/fec.cpp.o
[ 18%] Building CXX object CMakeFiles/srt_virtual.dir/srtcore/handshake.cpp.o
[ 20%] Building CXX object CMakeFiles/srt_virtual.dir/srtcore/list.cpp.o
[ 22%] Building CXX object CMakeFiles/srt_virtual.dir/srtcore/logger_default.cpp.o
[ 24%] Building CXX object CMakeFiles/srt_virtual.dir/srtcore/logger_defs.cpp.o
[ 26%] Building CXX object CMakeFiles/srt_virtual.dir/srtcore/md5.cpp.o
[ 28%] Building CXX object CMakeFiles/srt_virtual.dir/srtcore/packet.cpp.o
[ 30%] Building CXX object CMakeFiles/srt_virtual.dir/srtcore/packetfilter.cpp.o
[ 32%] Building CXX object CMakeFiles/srt_virtual.dir/srtcore/queue.cpp.o
[ 33%] Building CXX object CMakeFiles/srt_virtual.dir/srtcore/congctl.cpp.o
[ 35%] Building CXX object CMakeFiles/srt_virtual.dir/srtcore/socketconfig.cpp.o
[ 37%] Building CXX object CMakeFiles/srt_virtual.dir/srtcore/srt_c_api.cpp.o
[ 39%] Building C object CMakeFiles/srt_virtual.dir/srtcore/srt_compat.c.o
[ 41%] Building CXX object CMakeFiles/srt_virtual.dir/srtcore/strerror_defs.cpp.o
[ 43%] Building CXX object CMakeFiles/srt_virtual.dir/srtcore/sync.cpp.o
[ 45%] Building CXX object CMakeFiles/srt_virtual.dir/srtcore/tsbpd_time.cpp.o
[ 47%] Building CXX object CMakeFiles/srt_virtual.dir/srtcore/window.cpp.o
[ 49%] Building CXX object CMakeFiles/srt_virtual.dir/srtcore/sync_posix.cpp.o
[ 50%] Building C object CMakeFiles/srt_virtual.dir/haicrypt/cryspr.c.o
[ 52%] Building C object CMakeFiles/srt_virtual.dir/haicrypt/cryspr-openssl.c.o
[ 54%] Building C object CMakeFiles/srt_virtual.dir/haicrypt/hcrypt.c.o
[ 56%] Building C object CMakeFiles/srt_virtual.dir/haicrypt/hcrypt_ctx_rx.c.o
[ 58%] Building C object CMakeFiles/srt_virtual.dir/haicrypt/hcrypt_ctx_tx.c.o
[ 60%] Building C object CMakeFiles/srt_virtual.dir/haicrypt/hcrypt_rx.c.o
[ 62%] Building C object CMakeFiles/srt_virtual.dir/haicrypt/hcrypt_sa.c.o
[ 64%] Building C object CMakeFiles/srt_virtual.dir/haicrypt/hcrypt_tx.c.o
[ 66%] Building C object CMakeFiles/srt_virtual.dir/haicrypt/hcrypt_xpt_srt.c.o
[ 67%] Building CXX object CMakeFiles/srt_virtual.dir/haicrypt/haicrypt_log.cpp.o
[ 67%] Built target srt_virtual
Scanning dependencies of target srt_static
[ 69%] Building C object CMakeFiles/srt_static.dir/cmake_object_lib_support.c.o
[ 71%] Linking CXX static library libsrt.a
[ 71%] Built target srt_static
Scanning dependencies of target srtsupport_virtual
[ 73%] Building CXX object CMakeFiles/srtsupport_virtual.dir/apps/apputil.cpp.o
[ 75%] Building CXX object CMakeFiles/srtsupport_virtual.dir/apps/logsupport.cpp.o
[ 77%] Building CXX object CMakeFiles/srtsupport_virtual.dir/apps/logsupport_appdefs.cpp.o
[ 79%] Building CXX object CMakeFiles/srtsupport_virtual.dir/apps/socketoptions.cpp.o
[ 81%] Building CXX object CMakeFiles/srtsupport_virtual.dir/apps/transmitmedia.cpp.o
[ 83%] Building CXX object CMakeFiles/srtsupport_virtual.dir/apps/uriparser.cpp.o
[ 84%] Building CXX object CMakeFiles/srtsupport_virtual.dir/apps/verbose.cpp.o
[ 84%] Built target srtsupport_virtual
Scanning dependencies of target srt-tunnel
[ 86%] Building CXX object CMakeFiles/srt-tunnel.dir/apps/srt-tunnel.cpp.o
[ 88%] Linking CXX executable srt-tunnel
/usr/bin/ld: libsrt.a(core.cpp.o): in function `srt::CUDT::open()':
core.cpp:(.text+0xf60): undefined reference to `__atomic_store_8'
/usr/bin/ld: core.cpp:(.text+0xfa4): undefined reference to `__atomic_store_8'
/usr/bin/ld: core.cpp:(.text+0xfe4): undefined reference to `__atomic_store_8'
/usr/bin/ld: core.cpp:(.text+0x1010): undefined reference to `__atomic_store_8'
/usr/bin/ld: core.cpp:(.text+0x1064): undefined reference to `__atomic_store_8'
/usr/bin/ld: libsrt.a(core.cpp.o): in function `srt::CUDT::bstats(CBytePerfMon*, bool, bool)':
core.cpp:(.text+0x7bd4): undefined reference to `__atomic_load_8'
/usr/bin/ld: libsrt.a(core.cpp.o): in function `srt::CUDT::construct()':
core.cpp:(.text+0x80ec): undefined reference to `__atomic_store_8'
/usr/bin/ld: libsrt.a(core.cpp.o): in function `srt::CUDT::checkExpTimer(srt::sync::TimePoint<srt::sync::steady_clock> const&, int)':
core.cpp:(.text+0x874c): undefined reference to `__atomic_load_8'
/usr/bin/ld: core.cpp:(.text+0x8774): undefined reference to `__atomic_load_8'
/usr/bin/ld: core.cpp:(.text+0x888c): undefined reference to `__atomic_load_8'
/usr/bin/ld: libsrt.a(core.cpp.o): in function `srt::CUDT::updateCC(ETransmissionEvent, EventVariant)':
core.cpp:(.text+0x9338): undefined reference to `__atomic_store_8'
/usr/bin/ld: libsrt.a(core.cpp.o): in function `srt::CUDT::setupCC()':
core.cpp:(.text+0x9ab0): undefined reference to `__atomic_store_8'
/usr/bin/ld: core.cpp:(.text+0x9af0): undefined reference to `__atomic_store_8'
/usr/bin/ld: core.cpp:(.text+0x9b2c): undefined reference to `__atomic_store_8'
/usr/bin/ld: core.cpp:(.text+0x9b54): undefined reference to `__atomic_store_8'
/usr/bin/ld: libsrt.a(core.cpp.o):core.cpp:(.text+0xb1d4): more undefined references to `__atomic_store_8' follow
/usr/bin/ld: libsrt.a(core.cpp.o): in function `srt::CUDT::packData(srt::CPacket&)':
core.cpp:(.text+0xc624): undefined reference to `__atomic_load_8'
/usr/bin/ld: core.cpp:(.text+0xc654): undefined reference to `__atomic_store_8'
/usr/bin/ld: core.cpp:(.text+0xc86c): undefined reference to `__atomic_store_8'
/usr/bin/ld: core.cpp:(.text+0xc9f8): undefined reference to `__atomic_store_8'
/usr/bin/ld: core.cpp:(.text+0xcb2c): undefined reference to `__atomic_load_8'
/usr/bin/ld: core.cpp:(.text+0xcb40): undefined reference to `__atomic_load_8'
/usr/bin/ld: core.cpp:(.text+0xcb80): undefined reference to `__atomic_store_8'
/usr/bin/ld: core.cpp:(.text+0xcba8): undefined reference to `__atomic_store_8'
/usr/bin/ld: core.cpp:(.text+0xcce4): undefined reference to `__atomic_store_8'
/usr/bin/ld: libsrt.a(core.cpp.o): in function `srt::CUDT::checkACKTimer(srt::sync::TimePoint<srt::sync::steady_clock> const&)':
core.cpp:(.text+0xcfac): undefined reference to `__atomic_load_8'
/usr/bin/ld: core.cpp:(.text+0xd0c4): undefined reference to `__atomic_store_8'
/usr/bin/ld: libsrt.a(core.cpp.o): in function `srt::CUDT::checkNAKTimer(srt::sync::TimePoint<srt::sync::steady_clock> const&)':
core.cpp:(.text+0xd1d8): undefined reference to `__atomic_load_8'
/usr/bin/ld: core.cpp:(.text+0xd244): undefined reference to `__atomic_store_8'
/usr/bin/ld: libsrt.a(core.cpp.o): in function `srt::CUDT::checkTimers()':
core.cpp:(.text+0xd2e4): undefined reference to `__atomic_load_8'
/usr/bin/ld: libsrt.a(core.cpp.o): in function `srt::CUDT::processConnectResponse(srt::CPacket const&, CUDTException*)':
core.cpp:(.text+0x17b1c): undefined reference to `__atomic_store_8'
/usr/bin/ld: core.cpp:(.text+0x17d38): undefined reference to `__atomic_store_8'
/usr/bin/ld: libsrt.a(core.cpp.o): in function `srt::CUDT::processAsyncConnectResponse(srt::CPacket const&)':
core.cpp:(.text+0x181fc): undefined reference to `__atomic_store_8'
/usr/bin/ld: libsrt.a(core.cpp.o): in function `srt::CUDT::processRendezvous(srt::CPacket const*, sockaddr_any const&, EReadStatus, srt::CPacket&)':
core.cpp:(.text+0x186b0): undefined reference to `__atomic_store_8'
/usr/bin/ld: core.cpp:(.text+0x18804): undefined reference to `__atomic_store_8'
/usr/bin/ld: libsrt.a(core.cpp.o):core.cpp:(.text+0x18994): more undefined references to `__atomic_store_8' follow
/usr/bin/ld: libsrt.a(core.cpp.o): in function `srt::CUDT::startConnect(sockaddr_any const&, int)':
core.cpp:(.text+0x19534): undefined reference to `__atomic_load_8'
/usr/bin/ld: core.cpp:(.text+0x195ac): undefined reference to `__atomic_store_8'
/usr/bin/ld: libsrt.a(core.cpp.o): in function `srt::CUDT::processCtrlHS(srt::CPacket const&)':
core.cpp:(.text+0x1a750): undefined reference to `__atomic_store_8'
/usr/bin/ld: libsrt.a(core.cpp.o): in function `srt::CUDT::processCtrl(srt::CPacket const&)':
core.cpp:(.text+0x1bac0): undefined reference to `__atomic_store_8'
/usr/bin/ld: core.cpp:(.text+0x1bb6c): undefined reference to `__atomic_load_8'
/usr/bin/ld: core.cpp:(.text+0x1bbc8): undefined reference to `__atomic_store_8'
/usr/bin/ld: libsrt.a(core.cpp.o): in function `srt::CUDT::processData(srt::CUnit*)':
core.cpp:(.text+0x1c368): undefined reference to `__atomic_store_8'
/usr/bin/ld: core.cpp:(.text+0x1d4b0): undefined reference to `__atomic_store_8'
/usr/bin/ld: libsrt.a(core.cpp.o): in function `srt::sync::AtomicClock<srt::sync::steady_clock>::operator=(srt::sync::TimePoint<srt::sync::steady_clock> const&)':
core.cpp:(.text._ZN3srt4sync11AtomicClockINS0_12steady_clockEEaSERKNS0_9TimePointIS2_EE[_ZN3srt4sync11AtomicClockINS0_12steady_clockEEaSERKNS0_9TimePointIS2_EE]+0x24): undefined reference to `__atomic_store_8'
/usr/bin/ld: libsrt.a(queue.cpp.o): in function `srt::CRendezvousQueue::qualifyToHandle(EReadStatus, EConnectStatus, int, std::vector<srt::CRendezvousQueue::LinkStatusInfo, std::allocator<srt::CRendezvousQueue::LinkStatusInfo> >&, std::vector<srt::CRendezvousQueue::LinkStatusInfo, std::allocator<srt::CRendezvousQueue::LinkStatusInfo> >&)':
queue.cpp:(.text+0x2f00): undefined reference to `__atomic_load_8'
collect2: error: ld returned 1 exit status
make[2]: *** [CMakeFiles/srt-tunnel.dir/build.make:99: srt-tunnel] Error 1
make[1]: *** [CMakeFiles/Makefile2:89: CMakeFiles/srt-tunnel.dir/all] Error 2
make: *** [Makefile:130: all] Error 2

Some details about the OS on my Raspberry Pi 4B:

# lsb_release -a
No LSB modules are available.
Distributor ID: Raspbian
Description:    Raspbian GNU/Linux 10 (buster)
Release:        10
Codename:       buster

Any ideas?