td::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
BUILDSTDERR:        if (colon != std::string::npos) {
BUILDSTDERR:            ~~~~~~^~~~~~
BUILDSTDERR: /builddir/build/BUILD/liblsl-1.12.0/src/data_receiver.cpp:199:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
BUILDSTDERR:         if (semicolon != std::string::npos)
BUILDSTDERR:             ~~~~~~~~~~^~~~~~
BUILDSTDERR: In file included from /builddir/build/BUILD/liblsl-1.12.0/src/consumer_queue.h:6,
BUILDSTDERR:                  from /builddir/build/BUILD/liblsl-1.12.0/src/data_receiver.h:5,
BUILDSTDERR:                  from /builddir/build/BUILD/liblsl-1.12.0/src/data_receiver.cpp:7:
BUILDSTDERR: /builddir/build/BUILD/liblsl-1.12.0/src/sample.h: In instantiation of 'static void lsl::sample::load_raw(StreamBuf&, const void*, std::size_t) [with StreamBuf = int; std::size_t = long unsigned int]':
BUILDSTDERR: /builddir/build/BUILD/liblsl-1.12.0/src/sample.h:353:15:   required from 'void lsl::sample::load_streambuf(StreamBuf&, int, int, bool) [with StreamBuf = int]'
BUILDSTDERR: /builddir/build/BUILD/liblsl-1.12.0/src/data_receiver.cpp:242:160:   required from here
BUILDSTDERR: /builddir/build/BUILD/liblsl-1.12.0/src/sample.h:253:24: error: request for member 'sgetn' in 'sb', which is of non-class type 'int'
BUILDSTDERR:     if ((std::size_t)sb.sgetn((char*)address,(std::streamsize)count) != count)
BUILDSTDERR:                      ~~~^~~~~
BUILDSTDERR: make[2]: *** [src/CMakeFiles/lsl.dir/build.make:105: src/CMakeFiles/lsl.dir/data_receiver.cpp.o] Error 1
make[2]: Entering directory '/builddir/build/BUILD/liblsl-1.12.0/build'
[ 12%] Building CXX object src/CMakeFiles/lsl.dir/consumer_queue.cpp.o
cd /builddir/build/BUILD/liblsl-1.12.0/build/src && /usr/bin/c++  -Dlsl_EXPORTS  -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 -fPIC   -fPIC -Wl,--exclude-libs,ALL -std=c++0x -o CMakeFiles/lsl.dir/consumer_queue.cpp.o -c /builddir/build/BUILD/liblsl-1.12.0/src/consumer_queue.cpp
make[2]: Leaving directory '/builddir/build/BUILD/liblsl-1.12.0/build'
make[2]: Entering directory '/builddir/build/BUILD/liblsl-1.12.0/build'
[  8%] Building CXX object src/CMakeFiles/lsl.dir/api_config.cpp.o
cd /builddir/build/BUILD/liblsl-1.12.0/build/src && /usr/bin/c++  -Dlsl_EXPORTS  -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 -fPIC   -fPIC -Wl,--exclude-libs,ALL -std=c++0x -o CMakeFiles/lsl.dir/api_config.cpp.o -c /builddir/build/BUILD/liblsl-1.12.0/src/api_config.cpp
make[2]: Leaving directory '/builddir/build/BUILD/liblsl-1.12.0/build'
RPM build errors:
BUILDSTDERR: make[1]: *** [CMakeFiles/Makefile2:89: src/CMakeFiles/lsl.dir/all] Error 2
BUILDSTDERR: make: *** [Makefile:133: all] Error 2
BUILDSTDERR: error: Bad exit status from /var/tmp/rpm-tmp.ABkBcH (%build)
BUILDSTDERR:     Bad exit status from /var/tmp/rpm-tmp.ABkBcH (%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/liblsl.spec