[MacPorts] #31001: swi-prolog, swi-prolog-devel, swi-prolog-lite: remove expat dependency on darwin 9

[MacPorts]

#31001: swi-prolog, swi-prolog-devel, swi-prolog-lite: remove expat dependency on
darwin 9
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 Reporter:  ryandesign@…             |       Owner:  J.Wielemaker@…                               
     Type:  enhancement              |      Status:  new                                          
 Priority:  Normal                   |   Milestone:                                               
Component:  ports                    |     Version:  2.0.1                                        
 Keywords:  haspatch                 |        Port:  swi-prolog, swi-prolog-devel, swi-prolog-lite
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Comment(by ryandesign@…):

 Jan sent the following reply by email:

 > Although I'm owner, I do not have a login to Trac.

 You can create one by clicking the Register button at the top right of
 this web page.

 > Anyway, SWI-Prolog has no
 > direct dependency on expat.  It might have gotten there because SWI-
 Prolog does
 > depend on X11 fontconfig and older versions thereof had various issues.
 Maybe
 > a dependency was added to SWI-Prolog to work around a broken dependency
 in
 > fontconfig?

 fontconfig has always declared a dependency on expat ever since the
 fontconfig port was created 8 years ago in r2665.

 So can I apply the attached patch to remove the expat dependency from the
 swi-prolog ports?

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Ticket URL: <https://trac.macports.org/ticket/31001#comment:1>
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