Add support for RISC-V (riscv64)

Signed-off-by: David Abdurachmanov <david.abdurachmanov@gmail.com>

openblas.spec

@@ -15,7 +15,7 @@
 
 Name:           openblas
 Version:        0.3.0
-Release:        1%{?dist}
+Release:        1.0.riscv64%{?dist}
 Summary:        An optimized BLAS library based on GotoBLAS2
 Group:          Development/Libraries
 License:        BSD
@@ -31,6 +31,10 @@ Patch2:         openblas-0.2.15-constructor.patch
 Patch3:         openblas-0.2.19-tests.patch
 # Upstream pull 1572, fixes fail on ppc64le
 Patch4:         1572.patch
+# Add support for RISC-V (riscv64)
+# Taken from https://github.com/xianyi/OpenBLAS/pull/1526
+# No additional modifications done
+Patch5:         openblass-0.3.0-riscv64.patch
 
 BuildRequires:  gcc
 BuildRequires:  gcc-gfortran
@@ -231,6 +235,7 @@ cd OpenBLAS-%{version}
 %endif
 %patch3 -p1 -b .tests
 %patch4 -p1 -b .ppc64le
+%patch5 -p2 -b .riscv64
 
 # Fix source permissions
 find -name \*.f -exec chmod 644 {} \;
@@ -368,6 +373,9 @@ TARGET="TARGET=POWER8 DYNAMIC_ARCH=0"
 %ifarch aarch64
 TARGET="TARGET=ARMV8 DYNAMIC_ARCH=0"
 %endif
+%ifarch riscv64
+TARGET="DYNAMIC_ARCH=0"
+%endif
 
 %if 0%{?rhel} == 5
 # Gfortran too old to recognize -frecursive
@@ -441,6 +449,9 @@ suffix="_armv8"
 %ifarch s390x
 suffix="_zarch_generic"
 %endif
+%ifarch riscv64
+suffix="_riscv64"
+%endif
 slibname=`basename %{buildroot}%{_libdir}/libopenblas${suffix}-*.so .so`
 mv %{buildroot}%{_libdir}/${slibname}.a %{buildroot}%{_libdir}/lib%{name}.a
 if [[ "$suffix" != "" ]]; then
@@ -663,6 +674,9 @@ rm -rf %{buildroot}%{_libdir}/pkgconfig
 %endif
 
 %changelog
+* Sun Jun 03 2018 David Abdurachmanov <david.abdurachmanov@gmail.com> - 0.3.0-1.0.riscv64
+- Add support for RISC-V (riscv64)
+
 * Thu May 24 2018 Susi Lehtola <jussilehtola@fedoraproject.org> - 0.3.0-1
 - Update to 0.3.0.