make/autoconf/jvm-features.m4

*** 306,11 ***
  [
    JVM_FEATURES_CHECK_AVAILABILITY(shenandoahgc, [
      AC_MSG_CHECKING([if platform is supported by Shenandoah])
      if test "x$OPENJDK_TARGET_CPU_ARCH" = "xx86" || \
          test "x$OPENJDK_TARGET_CPU" = "xaarch64" || \
!         test "x$OPENJDK_TARGET_CPU" = "xppc64le"; then
        AC_MSG_RESULT([yes])
      else
        AC_MSG_RESULT([no, $OPENJDK_TARGET_CPU])
        AVAILABLE=false
      fi
--- 306,12 ---
  [
    JVM_FEATURES_CHECK_AVAILABILITY(shenandoahgc, [
      AC_MSG_CHECKING([if platform is supported by Shenandoah])
      if test "x$OPENJDK_TARGET_CPU_ARCH" = "xx86" || \
          test "x$OPENJDK_TARGET_CPU" = "xaarch64" || \
!         test "x$OPENJDK_TARGET_CPU" = "xppc64le" || \
+         test "x$OPENJDK_TARGET_CPU" = "xriscv64"; then
        AC_MSG_RESULT([yes])
      else
        AC_MSG_RESULT([no, $OPENJDK_TARGET_CPU])
        AVAILABLE=false
      fi

*** 356,11 ***
          AC_MSG_RESULT([yes])
        else
          AC_MSG_RESULT([no, $OPENJDK_TARGET_OS-$OPENJDK_TARGET_CPU])
          AVAILABLE=false
        fi
!     elif test "x$OPENJDK_TARGET_CPU" = "xppc64le"; then
        if test "x$OPENJDK_TARGET_OS" = "xlinux"; then
          AC_MSG_RESULT([yes])
        else
          AC_MSG_RESULT([no, $OPENJDK_TARGET_OS-$OPENJDK_TARGET_CPU])
          AVAILABLE=false
--- 357,12 ---
          AC_MSG_RESULT([yes])
        else
          AC_MSG_RESULT([no, $OPENJDK_TARGET_OS-$OPENJDK_TARGET_CPU])
          AVAILABLE=false
        fi
!     elif test "x$OPENJDK_TARGET_CPU" = "xppc64le" || \
+         test "x$OPENJDK_TARGET_CPU" = "xriscv64"; then
        if test "x$OPENJDK_TARGET_OS" = "xlinux"; then
          AC_MSG_RESULT([yes])
        else
          AC_MSG_RESULT([no, $OPENJDK_TARGET_OS-$OPENJDK_TARGET_CPU])
          AVAILABLE=false