Add support for riscv64

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

libomp.spec

@@ -35,7 +35,7 @@
 
 Name: libomp
 Version: %{libomp_version}%{?rc_ver:~rc%{rc_ver}}%{?llvm_snapshot_version_suffix:~%{llvm_snapshot_version_suffix}}
-Release: 1%{?dist}
+Release: 1.0.riscv64%{?dist}
 Summary: OpenMP runtime for clang
 
 License: Apache-2.0 WITH LLVM-exception OR NCSA
@@ -124,7 +124,7 @@ rm -rf %{buildroot}%{_libdir}/libarcher_static.a
 %ifnarch %{ix86} %{arm}
 # libomptarget is not supported on 32-bit systems.
 # s390x does not support the offloading plugins.
-%ifnarch s390x
+%ifnarch s390x riscv64
 %{_libdir}/libomptarget.rtl.amdgpu.so.%{so_suffix}
 %{_libdir}/libomptarget.rtl.cuda.so.%{so_suffix}
 %{_libdir}/libomptarget.rtl.%{libomp_arch}.so.%{so_suffix}
@@ -144,7 +144,7 @@ rm -rf %{buildroot}%{_libdir}/libarcher_static.a
 %ifnarch %{ix86} %{arm}
 # libomptarget is not supported on 32-bit systems.
 # s390x does not support the offloading plugins.
-%ifnarch s390x
+%ifnarch s390x riscv64
 %{_libdir}/libomptarget.rtl.amdgpu.so
 %{_libdir}/libomptarget.rtl.cuda.so
 %{_libdir}/libomptarget.rtl.%{libomp_arch}.so
@@ -156,6 +156,9 @@ rm -rf %{buildroot}%{_libdir}/libarcher_static.a
 %endif
 
 %changelog
+* Thu Mar 28 2024 David Abdurachmanov <davidlt@rivosinc.com> - 18.1.1-1.0.riscv64
+- Add support for riscv64
+
 * Wed Mar 13 2024 Tom Stellard <tstellar@redhat.com> - 18.1.1-1
 - 18.1.1 Release