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Re: Problem with Disable Mac App Nap

From: Andrew Janke
Subject: Re: Problem with Disable Mac App Nap
Date: Mon, 28 Oct 2019 23:21:00 -0400
User-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:60.0) Gecko/20100101 Thunderbird/60.9.0

On 10/28/19 11:16 PM, Ben Abbott wrote:
> Hi Andrew,
> After changeset 27575:d0fe6e344c41 I’m seeing the error below (macOS 10.14.6)
> libgui/src/octave-qobject.cc:197:26: warning: use of old-style cast 
> [-Wold-style-cast]
>     process_info_class = (Class) objc_getClass ("NSProcessInfo");
>                          ^       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> libgui/src/octave-qobject.cc:210:39: warning: use of old-style cast 
> [-Wold-style-cast]
>     if ((process_info = objc_msgSend ((id)process_info_class, 
> process_info_selector)) == nil)
>                                       ^   ~~~~~~~~~~~~~~~~~~
> libgui/src/octave-qobject.cc:213:21: error: no matching function for call to 
> 'objc_msgSend'
>     reason_string = objc_msgSend (objc_getClass ("NSString"),
>                     ^~~~~~~~~~~~
> /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/objc/message.h:85:1:
>  note: candidate function not viable: no known conversion from 'Class 
> _Nullable' (aka 'objc_class *') to
>       'id _Nullable' (aka 'objc_object *') for 1st argument
> objc_msgSend(id _Nullable self, SEL _Nonnull op, ...)
> ^
> libgui/src/octave-qobject.cc:222:5: error: use of undeclared identifier 
> 'osx_latencycritical_activity'
>     osx_latencycritical_activity = objc_msgSend (process_info,
> Ben

Argh. macOS 10.14.6 is what I tested it on in the first place.

Out of curiosity, what Xcode version? Not that I was expecting this to
happen; the Stack Overflow answer I sourced this from was supposed to be
compatible going back many macOS versions.

Best revert the change. I don't think I have a way of tracking down
what's causing this error.


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