Add support for RISCV (riscv64)

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

java-latest-openjdk.spec

@@ -251,6 +251,9 @@
 %ifarch %{aarch64}
 %global archinstall aarch64
 %endif
+%ifarch riscv64
+%global archinstall riscv64
+%endif
 # 32 bit sparc, optimized for v9
 %ifarch sparcv9
 %global archinstall sparc
@@ -1083,7 +1086,7 @@ Version: %{newjavaver}.%{buildver}
 # This package needs `.rolling` as part of Release so as to not conflict on install with
 # java-X-openjdk. I.e. when latest rolling release is also an LTS release packaged as
 # java-X-openjdk. See: https://bugzilla.redhat.com/show_bug.cgi?id=1647298
-Release: %{?eaprefix}%{rpmrelease}%{?extraver}.rolling%{?dist}
+Release: %{?eaprefix}%{rpmrelease}%{?extraver}.rolling.0.riscv64%{?dist}
 # java-1.5.0-ibm from jpackage.org set Epoch to 1 for unknown reasons
 # and this change was brought into RHEL-4. java-1.5.0-ibm packages
 # also included the epoch in their virtual provides. This created a
@@ -1146,6 +1149,10 @@ Source14: TestECDSA.java
 # Verify system crypto (policy) can be disabled via a property
 Source15: TestSecurityProperties.java
 
+# New versions of config files with RISC-V (riscv64) support.
+Source100: config.guess
+Source101: config.sub
+
 ############################################
 #
 # RPM/distribution specific patches
@@ -1512,6 +1519,12 @@ if [ $prioritylength -ne 8 ] ; then
  exit 14
 fi
 
+%ifarch riscv64
+# Update config.{guess,sub} with RISC-V (riscv64) support
+cp %{SOURCE100} openjdk/make/autoconf/build-aux/autoconf-config.guess
+cp %{SOURCE101} openjdk/make/autoconf/build-aux/autoconf-config.sub
+%endif
+
 # OpenJDK patches
 # Remove libraries that are linked by both static and dynamic builds
 sh %{SOURCE12} %{top_level_dir_name}
@@ -1585,7 +1598,7 @@ export NUM_PROC=${NUM_PROC:-1}
 [ ${NUM_PROC} -gt %{?_smp_ncpus_max} ] && export NUM_PROC=%{?_smp_ncpus_max}
 %endif
 
-%ifarch s390x sparc64 alpha %{power64} %{aarch64}
+%ifarch s390x sparc64 alpha %{power64} %{aarch64} riscv64
 export ARCH_DATA_MODEL=64
 %endif
 %ifarch alpha
@@ -2229,6 +2242,9 @@ require "copy_jdk_configs.lua"
 %endif
 
 %changelog
+* Fri May 07 2021 David Abdurachmanov <david.abdurachmanov@gmail.com> -  1:16.0.1.0.9-2.rolling.0.riscv64
+- Add support for RISC-V (riscv64)
+
 * Fri Apr 29 2021 Jiri Vanek <jvanek@redhat.com> -  1:16.0.1.0.9-2.rolling
 - adapted to debug handling  in newer cjc
 - The rest of the "rpm 4.17" patch must NOT be backported, as on rpm 4.16 and down, it would casue double execution