Add support for riscv64

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

openblas.spec

@@ -15,7 +15,7 @@
 
 Name:           openblas
 Version:        0.3.21
-Release:        5%{?dist}
+Release:        5.0.riscv64%{?dist}
 Summary:        An optimized BLAS library based on GotoBLAS2
 License:        BSD
 URL:            https://github.com/xianyi/OpenBLAS/
@@ -57,7 +57,11 @@ Obsoletes:      %{name}-Rblas < %{version}-%{release}
 %global execstack 1
 %endif
 %else
+%ifnarch riscv64
 %global execstack 1
+%else
+%global execstack 0
+%endif
 %endif
 %if %{execstack}
 BuildRequires:  /usr/bin/execstack
@@ -392,6 +396,9 @@ TARGET="TARGET=ARMV8 DYNAMIC_ARCH=1 DYNAMIC_OLDER=1"
 %ifarch s390x
 TARGET="TARGET=ZARCH_GENERIC DYNAMIC_ARCH=1 DYNAMIC_OLDER=1"
 %endif
+%ifarch riscv64
+TARGET="TARGET=RISCV64_GENERIC DYNAMIC_ARCH=0"
+%endif
 
 %if 0%{?rhel} == 5
 # Gfortran too old to recognize -frecursive
@@ -454,6 +461,9 @@ suffix=""
 %ifarch armv7hl
 suffix="_armv7"
 %endif
+%ifarch riscv64
+suffix="_riscv64_generic"
+%endif
 slibname=`basename %{buildroot}%{_libdir}/libopenblas${suffix}-*.so .so`
 mv %{buildroot}%{_libdir}/${slibname}.a %{buildroot}%{_libdir}/lib%{name}.a
 if [[ "$suffix" != "" ]]; then
@@ -660,6 +670,9 @@ rm -rf %{buildroot}%{_libdir}/pkgconfig
 %endif
 
 %changelog
+* Tue Mar 28 2023 David Abdurachmanov <davidlt@rivosinc.com> - 0.3.21-5.0.riscv64
+- Add support for riscv64
+
 * Thu Jan 19 2023 Fedora Release Engineering <releng@fedoraproject.org> - 0.3.21-5
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild