Add the latest RISC-V development

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

openblas.spec

@@ -32,6 +32,9 @@ Patch3:         openblas-0.3.7-tests.patch
 # Fix C++ compatibility (BZ #1820131)
 Patch4:         https://github.com/xianyi/OpenBLAS/commit/ee2e758278b5d82b7242f505ea694f082ef65879.patch
 
+# RISC-V 64-bit support (generated from risc-v upstream branch)
+Patch10:        riscv64.patch
+
 BuildRequires:  gcc
 BuildRequires:  gcc-c++
 BuildRequires:  gcc-gfortran
@@ -250,6 +253,10 @@ cd OpenBLAS-%{version}
 %patch3 -p1 -b .tests
 %patch4 -p1 -b .cplusplus
 
+%ifarch riscv64
+%patch10 -p1 -b .riscv64
+%endif
+
 # Fix source permissions
 find -name \*.f -exec chmod 644 {} \;
 
@@ -391,7 +398,7 @@ TARGET="TARGET=ARMV8 DYNAMIC_ARCH=1 DYNAMIC_OLDER=1"
 TARGET="TARGET=ZARCH_GENERIC DYNAMIC_ARCH=1 DYNAMIC_OLDER=1"
 %endif
 %ifarch riscv64
-TARGET="TARGET=RISCV64 DYNAMIC_ARCH=0"
+TARGET="TARGET=RISCV64_GENERIC DYNAMIC_ARCH=0"
 %endif
 
 %if 0%{?rhel} == 5
@@ -457,6 +464,9 @@ 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
@@ -675,6 +685,9 @@ rm -rf %{buildroot}%{_libdir}/pkgconfig
 %endif
 
 %changelog
+* Mon May 04 2020 David Abdurachmanov <david.abdurachmanvo@sifive.com> - 0.3.9-2.0.riscv64
+- Enable RISC-V 64-bit (riscv64) support
+
 * Thu Apr 02 2020 Susi Lehtola <jussilehtola@fedoraproject.org> - 0.3.9-2
 - Patch for BZ #1820131.