make/autoconf/util_windows.m4

*** 50,61 ****
--- 50,69 ----
      $1="$windows_path"
    elif test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys"; then
      windows_path=`cmd //c echo $unix_path`
      $1="$windows_path"
    elif test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.wsl"; then
+     PATH_EXISTS=true
+     if test ! -e "$unix_path"; then
+       PATH_EXISTS=false
+       $TOUCH "$unix_path"
+     fi
      windows_path=`$WSLPATH -m "$unix_path"`
      $1="$windows_path"
+     if test $PATH_EXISTS = false; then
+       $RM "$unix_path"
+     fi
    fi
  ])
  
  # Helper function which possibly converts a path using DOS-style short mode.
  # If so, the updated path is stored in $new_path.