-I../../../.. -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -fasynchronous-unwind-tables -fstack-clash-protection -fpermissive  -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -fasynchronous-unwind-tables -fstack-clash-protection -c -o marketmodelvolprocess.lo marketmodelvolprocess.cpp
libtool: compile:  g++ -DHAVE_CONFIG_H -I../../../.. -I../../../.. -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -fasynchronous-unwind-tables -fstack-clash-protection -fpermissive -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -fasynchronous-unwind-tables -fstack-clash-protection -c marketmodelvolprocess.cpp  -fPIC -DPIC -o .libs/marketmodelvolprocess.o
The bug is not reproducible, so it is likely a hardware or OS problem.
make[6]: *** [Makefile:545: lognormalfwdratepc.lo] Error 1
make[6]: *** Waiting for unfinished jobs....
libtool: compile:  g++ -DHAVE_CONFIG_H -I../../../.. -I../../../.. -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -fasynchronous-unwind-tables -fstack-clash-protection -fpermissive -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -fasynchronous-unwind-tables -fstack-clash-protection -c marketmodelvolprocess.cpp -o marketmodelvolprocess.o >/dev/null 2>&1
make[6]: Leaving directory '/builddir/build/BUILD/QuantLib-1.16/ql/models/marketmodels/evolvers'
make[5]: *** [Makefile:581: all-recursive] Error 1
make[5]: Leaving directory '/builddir/build/BUILD/QuantLib-1.16/ql/models/marketmodels/evolvers'
make[4]: *** [Makefile:610: all-recursive] Error 1
make[4]: Leaving directory '/builddir/build/BUILD/QuantLib-1.16/ql/models/marketmodels'
make[3]: *** [Makefile:536: all-recursive] Error 1
make[3]: Leaving directory '/builddir/build/BUILD/QuantLib-1.16/ql/models'
make[2]: *** [Makefile:692: all-recursive] Error 1
make[2]: Leaving directory '/builddir/build/BUILD/QuantLib-1.16/ql'
make[1]: Leaving directory '/builddir/build/BUILD/QuantLib-1.16/ql'
make[1]: *** [Makefile:517: all] Error 2
make: *** [Makefile:593: all-recursive] Error 1
RPM build errors:
error: Bad exit status from /var/tmp/rpm-tmp.kYNuCI (%build)
    Bad exit status from /var/tmp/rpm-tmp.kYNuCI (%build)
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/QuantLib.spec