krb5 -lurcu-bp 
In function 'atomic_sub_int32_t',
    inlined from 'atomic_dec_int32_t' at /builddir/build/BUILD/nfs-ganesha-4.0/src/include/abstract_atomic.h:328:9,
    inlined from 'dec_nlm_state_ref' at /builddir/build/BUILD/nfs-ganesha-4.0/src/SAL/nlm_state.c:255:13:
/builddir/build/BUILD/nfs-ganesha-4.0/src/include/abstract_atomic.h:307:16: warning: '__atomic_sub_fetch_4' writing 4 bytes into a region of size 0 overflows the destination [-Wstringop-overflow=]
  307 |         return __atomic_sub_fetch(minuend, subtrahend, __ATOMIC_SEQ_CST);
      |                ^
/usr/bin/ld: /tmp/ccjuNHNI.ltrans2.ltrans.o: in function `.LVL699':
/builddir/build/BUILD/nfs-ganesha-4.0/src/include/nfsv41.h:9816: undefined reference to `__atomic_fetch_or_2'
/usr/bin/ld: /tmp/ccjuNHNI.ltrans2.ltrans.o: in function `.L0 ':
/usr/include/ntirpc/rpc/xdr_inline.h:781: undefined reference to `__atomic_fetch_or_2'
/usr/bin/ld: /tmp/ccjuNHNI.ltrans2.ltrans.o: in function `.L0 ':
/builddir/build/BUILD/nfs-ganesha-4.0/src/support/netgroup_cache.c:53: undefined reference to `__atomic_fetch_or_2'
/usr/bin/ld: /tmp/ccjuNHNI.ltrans2.ltrans.o: in function `.L0 ':
/builddir/build/BUILD/nfs-ganesha-4.0/src/include/avltree.h:290: undefined reference to `__atomic_fetch_or_2'
/usr/bin/ld: /tmp/ccjuNHNI.ltrans2.ltrans.o: in function `.LVL3357':
/usr/include/ntirpc/rpc/svc.h:470: undefined reference to `__atomic_fetch_or_2'
/usr/bin/ld: /tmp/ccjuNHNI.ltrans2.ltrans.o:/builddir/build/BUILD/nfs-ganesha-4.0/src/SAL/state_async.c:209: more undefined references to `__atomic_fetch_or_2' follow
/usr/bin/ld: /tmp/ccjuNHNI.ltrans19.ltrans.o: in function `.LVL940':
/builddir/build/BUILD/nfs-ganesha-4.0/src/FSAL/Stackable_FSALs/FSAL_MDCACHE/mdcache_handle.c:1465: undefined reference to `__atomic_fetch_or_1'
/usr/bin/ld: /tmp/ccjuNHNI.ltrans21.ltrans.o: in function `.L0 ':
/builddir/build/BUILD/nfs-ganesha-4.0/src/dbus/dbus_server.c:872: undefined reference to `__atomic_fetch_or_2'
/usr/bin/ld: /tmp/ccjuNHNI.ltrans21.ltrans.o: in function `.L0 ':
/builddir/build/BUILD/nfs-ganesha-4.0/src/include/abstract_mem.h:256: undefined reference to `__atomic_fetch_or_2'
/usr/bin/ld: /tmp/ccjuNHNI.ltrans21.ltrans.o: in function `.L0 ':
/builddir/build/BUILD/nfs-ganesha-4.0/src/Protocols/NLM/nlm_Sm_Notify.c:87: undefined reference to `__atomic_fetch_or_2'
/usr/bin/ld: /tmp/ccjuNHNI.ltrans21.ltrans.o:/builddir/build/BUILD/nfs-ganesha-4.0/src/Protocols/NLM/nlm_Sm_Notify.c:56: undefined reference to `__atomic_fetch_or_2'
/usr/bin/ld: /tmp/ccjuNHNI.ltrans21.ltrans.o: in function `.L0 ':
/builddir/build/BUILD/nfs-ganesha-4.0/src/Protocols/NLM/nlm_Share.c:64: undefined reference to `__atomic_fetch_or_2'
/usr/bin/ld: /tmp/ccjuNHNI.ltrans21.ltrans.o:/builddir/build/BUILD/nfs-ganesha-4.0/src/Protocols/NLM/nlm_async.c:343: more undefined references to `__atomic_fetch_or_2' follow
collect2: error: ld returned 1 exit status
gmake[2]: Leaving directory '/builddir/build/BUILD/nfs-ganesha-4.0/src/redhat-linux-build'
gmake[2]: *** [MainNFSD/CMakeFiles/ganesha_nfsd.dir/build.make:729: MainNFSD/libganesha_nfsd.so.4.0] Error 1
gmake[1]: *** [CMakeFiles/Makefile2:1892: MainNFSD/CMakeFiles/ganesha_nfsd.dir/all] Error 2
gmake[1]: Leaving directory '/builddir/build/BUILD/nfs-ganesha-4.0/src/redhat-linux-build'
gmake: *** [Makefile:159: all] Error 2
error: Bad exit status from /var/tmp/rpm-tmp.yb09pO (%build)
    Bad exit status from /var/tmp/rpm-tmp.yb09pO (%build)
RPM build errors:
Child return code was: 1
EXCEPTION: [Error()]
Traceback (most recent call last):
  File "/usr/lib/python3.9/site-packages/mockbuild/trace_decorator.py", line 93, in trace
    result = func(*args, **kw)
  File "/usr/lib/python3.9/site-packages/mockbuild/util.py", line 600, in do_with_status
    raise exception.Error("Command failed: \n # %s\n%s" % (command, output), child.returncode)
mockbuild.exception.Error: Command failed: 
 # bash --login -c /usr/bin/rpmbuild -bb --target riscv64 --nodeps /builddir/build/SPECS/nfs-ganesha.spec