91,
BUILDSTDERR:                  from /usr/include/c++/8/string:52,
BUILDSTDERR:                  from /usr/include/c++/8/bits/locale_classes.h:40,
BUILDSTDERR:                  from /usr/include/c++/8/bits/ios_base.h:41,
BUILDSTDERR:                  from /usr/include/c++/8/ios:42,
BUILDSTDERR:                  from /usr/include/c++/8/ostream:38,
BUILDSTDERR:                  from /usr/include/c++/8/iostream:39,
BUILDSTDERR:                  from ./Xrm.h:12,
BUILDSTDERR:                  from ./xwin.h:4,
BUILDSTDERR:                  from ./xosview.h:10,
BUILDSTDERR:                  from ./meter.h:10,
BUILDSTDERR:                  from ./fieldmeter.h:10,
BUILDSTDERR:                  from ./fieldmeterdecay.h:19,
BUILDSTDERR:                  from ./fieldmetergraph.h:15,
BUILDSTDERR:                  from linux/netmeter.h:10,
BUILDSTDERR:                  from linux/netmeter.cc:10:
BUILDSTDERR: /usr/include/bits/stdio2.h:67:35: note: '__builtin___snprintf_chk' output between 36 and 291 bytes into a destination of size 128
BUILDSTDERR:    return __builtin___snprintf_chk (__s, __n, __USE_FORTIFY_LEVEL - 1,
BUILDSTDERR:           ~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
BUILDSTDERR:         __bos (__s), __fmt, __va_arg_pack ());
BUILDSTDERR:         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
g++  -O2 -g -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS -fexceptions -fstack-protector-strong -grecord-gcc-switches -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -fasynchronous-unwind-tables -fstack-clash-protection -I. -MMD -Ilinux/  -c -o linux/raidmeter.o linux/raidmeter.cc
g++  -O2 -g -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS -fexceptions -fstack-protector-strong -grecord-gcc-switches -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -fasynchronous-unwind-tables -fstack-clash-protection -I. -MMD -Ilinux/  -c -o linux/serialmeter.o linux/serialmeter.cc
BUILDSTDERR: linux/nfsmeter.cc: In member function 'virtual void NFSDStats::checkevent()':
BUILDSTDERR: linux/nfsmeter.cc:96:5: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
BUILDSTDERR:      if (t < 0)
BUILDSTDERR:      ^~
BUILDSTDERR: linux/nfsmeter.cc:99:2: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
BUILDSTDERR:   maxpackets_ = MAX(netcnt, calls) - _lastNetCnt;
BUILDSTDERR:   ^~~~~~~~~~~
BUILDSTDERR: linux/nfsmeter.cc: In member function 'virtual void NFSStats::checkevent()':
BUILDSTDERR: linux/nfsmeter.cc:178:5: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
BUILDSTDERR:      if (t < 0)
BUILDSTDERR:      ^~
BUILDSTDERR: linux/nfsmeter.cc:181:2: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
BUILDSTDERR:   maxpackets_ = calls - _lastcalls;
BUILDSTDERR:   ^~~~~~~~~~~
BUILDSTDERR: linux/serialmeter.cc:34:10: fatal error: sys/io.h: No such file or directory
BUILDSTDERR:  #include <sys/io.h>
BUILDSTDERR:           ^~~~~~~~~~
BUILDSTDERR: compilation terminated.
BUILDSTDERR: make: *** [<builtin>: linux/serialmeter.o] Error 1
BUILDSTDERR: make: *** Waiting for unfinished jobs....
RPM build errors:
BUILDSTDERR: error: Bad exit status from /var/tmp/rpm-tmp.FuAp53 (%build)
BUILDSTDERR:     Bad exit status from /var/tmp/rpm-tmp.FuAp53 (%build)
Child return code was: 1
EXCEPTION: [Error()]
Traceback (most recent call last):
  File "/usr/lib/python3.6/site-packages/mockbuild/trace_decorator.py", line 96, in trace
    result = func(*args, **kw)
  File "/usr/lib/python3.6/site-packages/mockbuild/util.py", line 626, in do
    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/xosview.spec