!6 增加riscv构建支持

From: @laokz 
Reviewed-by: @caodongxia 
Signed-off-by: @caodongxia

add-riscv64-arch.patch

@@ -0,0 +1,27 @@
+diff --git a/build/make/configure.sh b/build/make/configure.sh
+index 581042e..56a67d1 100644
+--- a/build/make/configure.sh
++++ b/build/make/configure.sh
+@@ -783,6 +783,10 @@ process_common_toolchain() {
+       loongarch64*)
+         tgt_isa=loongarch64
+         ;;
++      riscv64*)
++        tgt_isa=riscv64
++        ;;
++
+     esac
+ 
+     # detect tgt_os
+diff --git a/configure b/configure
+index beea650..51e19e4 100755
+--- a/configure
++++ b/configure
+@@ -119,6 +119,7 @@ all_platforms="${all_platforms} loongarch64-linux-gcc"
+ all_platforms="${all_platforms} mips32-linux-gcc"
+ all_platforms="${all_platforms} mips64-linux-gcc"
+ all_platforms="${all_platforms} ppc64le-linux-gcc"
++all_platforms="${all_platforms} riscv64-linux-gcc"
+ all_platforms="${all_platforms} sparc-solaris-gcc"
+ all_platforms="${all_platforms} x86-android-gcc"
+ all_platforms="${all_platforms} x86-darwin8-gcc"

libvpx.spec

@@ -1,9 +1,10 @@
 Name:                   libvpx
 Version:                1.12.0
-Release:                2
+Release:                3
 Summary:                VP8/VP9 Video Codec SDK
 License:                BSD
 Source0:                https://github.com/webmproject/libvpx/archive/v%{version}.tar.gz
+Patch0:                 add-riscv64-arch.patch
 URL:                    http://www.webmproject.org/code/
 BuildRequires:          gcc gcc-c++ doxygen, php-cli, perl(Getopt::Long)
 %ifarch x86_64
@@ -34,9 +35,13 @@ Development libraries and headers for developing software against libvpx.
 %ifarch aarch64
 %global vpxtarget arm64-linux-gcc
 %else
+%ifarch riscv64
+%global vpxtarget riscv64-linux-gcc
+%else
 %global vpxtarget generic-gnu
 %endif
 %endif
+%endif
 
 %set_build_flags
 
@@ -105,6 +110,9 @@ mv %{buildroot}%{_prefix}/src/vpx_scale %{buildroot}%{_includedir}/
 %{_libdir}/libvpx.so
 
 %changelog
+* Wed May 17 2023 laokz <zhangkai@iscas.ac.cn> - 1.12.0-3
+- Add RISC-V arch support authored-by: YukariChiba <i@0x7f.cc>
+
 * Mon May  8 2023 Wenlong Zhang <zhangwenlong@loongson.cn> - 1.12.0-2
 - fix build error for loongarch64