make/autoconf/hotspot.m4

*** 349,358 ****
--- 349,359 ----
    fi
  
    # Only enable ZGC on supported platforms
    AC_MSG_CHECKING([if zgc can be built])
    if (test "x$OPENJDK_TARGET_OS" = "xlinux" && test "x$OPENJDK_TARGET_CPU" = "xx86_64") || \
+      (test "x$OPENJDK_TARGET_OS" = "xwindows" && test "x$OPENJDK_TARGET_CPU" = "xx86_64") || \
       (test "x$OPENJDK_TARGET_OS" = "xlinux" && test "x$OPENJDK_TARGET_CPU" = "xaarch64"); then
      AC_MSG_RESULT([yes])
    else
      DISABLED_JVM_FEATURES="$DISABLED_JVM_FEATURES zgc"
      AC_MSG_RESULT([no, platform not supported])