This is the same as https://groups.google.com/forum/#!topic/swi-prolog/AzKRaSBGUaEThe only work around I see for now is to run the swipl executable that is also in the App (open the app's content, navigate to the bin directory and run that) or to install Macports or Homebrew versions (that also provide thecommandline version only). There are also reports that X11 graphics don't work on El Captain. Not sure whether this is an issue that holds for all versions for MacOS. Seems they broke compatibility rather drastically :(
Last login: Sat Oct 24 13:19:54 on ttys000
vpn-89-206-119-48:~ fuchs$ swipl
% /Users/fuchs/.plrc compiled 0.00 sec, 1 clauses
Welcome to SWI-Prolog (Multi-threaded, 64 bits, Version 6.4.1)
Copyright (c) 1990-2013 University of Amsterdam, VU Amsterdam
SWI-Prolog comes with ABSOLUTELY NO WARRANTY. This is free software,
and you are welcome to redistribute it under certain conditions.
Please visit http://www.swi-prolog.org for details.
For help, use ?- help(Topic). or ?- apropos(Word).
'$open_shared_object'/3: dlopen(/opt/local/lib/swipl-6.4.1/lib/x86_64-darwin11.4.2/pl2xpce.dylib, 1): Library not loaded: /usr/X11/lib/libXpm.4.dylib
Referenced from: /opt/local/lib/swipl-6.4.1/lib/x86_64-darwin11.4.2/pl2xpce.dylib
Reason: image not found
Goal (directive) failed: pce_principal:use_foreign_library(foreign(pl2xpce))
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