} else { 
      set repositories ~/repositories 
      set checkouts ~/checkouts 
    } 
 
    set message [string trim [subst { 
      The package client checkout directory has an issue: %error% 
    set message [subst { 
      The package client checkout directory has an issue:  
 
        %error% 
 
      Prior to running the package uploader client tool, Fossil must be 
      installed -AND- the Package File Server repository must be cloned 
      and opened, using commands very similar to the following: 
 

 
      After the above steps have been completed, package uploader client 
      tool can be executed using a command very similar to the following: 
 
        tclsh [joinPath ${checkouts} client 1.0 neutral pkgr_upload.eagle] 
    }]] 
    }] 
 
    if {![info exists checkoutDirectory]} then { 
      error [string map [list \ 
          %error% "checkout directory is missing"] \ 
          $message] 

  # 
  proc fossilMustBeInstalled {} { 
    variable fossilVersionCommand 
    variable fossilVersionPattern 
 
    set message [string trim { 
    set message { 
      Cannot use Fossil: it does not appear to be installed. 
 
      Fossil may be downloaded from "https://www.fossil-scm.org/" 
      and then installed by copying the (single) Fossil binary to 
      a directory that lies somewhere along the executable search 
      path. 
 
      Alternatively, it may be possible to install Fossil via the 
      package management subsystem included with your operating 
      system. 
    }] 
    } 
 
    if {[isEagle]} then { 
      if {[catch { 
        eval exec -nocarriagereturns -stdout output -stderr error \ 
            $fossilVersionCommand