Bootstrap on riscv64

Signed-off-by: David Abdurachmanov <davidlt@rivosinc.com>

tbb.spec

@@ -1,7 +1,7 @@
 Name:    tbb
 Summary: The Threading Building Blocks library abstracts low-level threading details
 Version: 2020.3
-Release: 12%{?dist}
+Release: 12.0.riscv64%{?dist}
 License: ASL 2.0
 URL:     http://threadingbuildingblocks.org/
 
@@ -104,7 +104,7 @@ fi
 %make_build tbb_build_prefix=obj stdver=c++14 \
     compiler=${compiler} \
     CXXFLAGS="%{optflags} -DUSE_PTHREAD" \
-    LDFLAGS="$RPM_LD_FLAGS -lpthread"
+    LDFLAGS="$RPM_LD_FLAGS -pthread -latomic"
 for file in %{SOURCE6} %{SOURCE7} %{SOURCE8}; do
     base=$(basename ${file})
     sed 's/_FEDORA_VERSION/%{version}/' ${file} > ${base}
@@ -117,7 +117,7 @@ pushd python
 %make_build -C rml stdver=c++14 \
     compiler=${compiler} \
     CPLUS_FLAGS="%{optflags} -DUSE_PTHREAD" \
-    LDFLAGS="$RPM_LD_FLAGS -lpthread"
+    LDFLAGS="$RPM_LD_FLAGS -pthread -latomic"
 cp -p rml/libirml.so* .
 %py3_build
 popd
@@ -205,6 +205,9 @@ cmake \
 %{python3_sitearch}/__pycache__/TBB*
 
 %changelog
+* Tue Oct 25 2022 David Abdurachmanov <davidlt@rivosinc.om> - 2020.3-12.0.riscv64
+- Bootstrap on riscv64
+
 * Sat Jul 23 2022 Fedora Release Engineering <releng@fedoraproject.org> - 2020.3-12
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_37_Mass_Rebuild