[MacPorts] #29917: Fuse4X: add port

[MacPorts]

#29917: Fuse4X: add port
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 Reporter:  anatol.pomozov@…          |       Owner:  dports@…                           
     Type:  submission                |      Status:  assigned                           
 Priority:  Normal                    |   Milestone:                                     
Component:  ports                     |     Version:                                     
 Keywords:                            |        Port:  fuse4x fuse4x-kext fuse4x-framework
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Comment(by anatol.pomozov@…):

 Looking into http://trac.macports.org/browser/users/dports/ports/fuse
 /fuse4x-kext/Portfile

 post-activate logic should be following:

 1) (Optional step) Check if kext is running: "kextstat -l -b
 org.fuse4x.kext.fuse4x". if it is not running - we are done.[[BR]]
 2) unload the kext using "sudo kextunload /PATH/TO/fuse4x.kext"[[BR]]
 3) check if the kext is running. if it is not running - we are done.[[BR]]
 4) if previous step shown that the kext is still running - it means that
 somebody still uses it. We need to ask user either to stop all filesystems
 and unload kext manually or restart the computer. The list of mounted
 fuse4x filesystems can be found via "mount -t fuse4x"

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Ticket URL: <https://trac.macports.org/ticket/29917#comment:43>
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