Re: MacOS: error: no matching function for call to 'objc_msgSend'

[Andrew Janke]

On 2/1/20 8:17 PM, Benjamin Abbott wrote:
>> On Feb 1, 2020, at 10:43 AM, Andrew Janke <address@hidden
>> <mailto:address@hidden>> wrote:
>>
>> On 2/1/20 12:55 PM, Benjamin Abbott wrote:
>>>> On Feb 1, 2020, at 9:31 AM, Andrew Janke <address@hidden
>>>> <mailto:address@hidden><mailto:address@hidden>> wrote:
>>>>
>>>> On 2/1/20 12:13 AM, Benjamin Abbott wrote:
>>>>> Andrew,
>>>>> I’ve just upgraded to MacOS 10.15.3.
>>>>> After upgrading Homebew, I now see the error below. It looks to me
>>>>> like this was introduced in changeset 27624. Have you upgraded to
>>>>> Catalina yet?
>>>>> Ben
>>>>> libtool: compile:  g++ -std=gnu++11 -DHAVE_CONFIG_H -I.
>>>>> -I/usr/local/opt/freetype/include/freetype2
>>>>> -I/usr/local/Cellar/fontconfig/2.13.1/include
>>>>> -I/usr/local/opt/freetype/include/freetype2
>>>>> -I/usr/local/Cellar/qt/5.14.1/lib/QtNetwork.framework/Headers
>>>>> -I/usr/local/Cellar/qt/5.14.1/lib/QtPrintSupport.framework/Headers
>>>>> -I/usr/local/Cellar/qt/5.14.1/lib/QtHelp.framework/Headers
>>>>> -I/usr/local/Cellar/qt/5.14.1/lib/QtWidgets.framework/Headers
>>>>> -I/usr/local/Cellar/qt/5.14.1/lib/QtGui.framework/Headers
>>>>> -I/usr/local/Cellar/qt/5.14.1/lib/QtSql.framework/Headers
>>>>> -I/usr/local/Cellar/qt/5.14.1/lib/QtXml.framework/Headers
>>>>> -I/usr/local/Cellar/qt/5.14.1/lib/QtCore.framework/Headers
>>>>> -I./libgui/qterminal/libqterminal -Ilibgui/src -I./libgui/src
>>>>> -Ilibgui/graphics -I./libgui/graphics -I./libgui/src/m-editor
>>>>> -Iliboctave -I./liboctave/array -Iliboctave/numeric
>>>>> -I./liboctave/numeric -Iliboctave/operators -I./liboctave/operators
>>>>> -I./liboctave/system -I./liboctave/util -Ilibinterp -I./libinterp
>>>>> -Ilibinterp/parse-tree -I./libinterp/parse-tree -Ilibinterp/corefcn
>>>>> -I./libinterp/corefcn -I./libinterp/octave-value
>>>>> -I./liboctave/wrappers -I/usr/local/opt/readline/include
>>>>> -I/usr/local/opt/sqlite/include -I/usr/local/opt/openssl/include
>>>>> -I/usr/local/opt/gettext/include -I/usr/local/opt/icu4c/include
>>>>> -I/usr/local/opt/qt5/include -I/usr/local/opt/sundials27/include
>>>>> -I/usr/local/opt/zlib/include -fPIC -D_THREAD_SAFE -pthread -Wall
>>>>> -W -Wshadow -Woverloaded-virtual -Wold-style-cast -Wformat
>>>>> -Wpointer-arith -Wwrite-strings -Wcast-align -Wcast-qual -g -O2 -MT
>>>>> libgui/src/libgui_src_la-octave-qobject.lo -MD -MP -MF
>>>>> libgui/src/.deps/libgui_src_la-octave-qobject.Tpo -c
>>>>> libgui/src/octave-qobject.cc
>>>>> <http://octave-qobject.cc/> <http://octave-qobject.cc
>>>>> <http://octave-qobject.cc/>>  -fno-common -DPIC -o
>>>>> libgui/src/.libs/libgui_src_la-octave-qobject.o
>>>>> libgui/src/octave-qobject.cc:91
>>>>> <http://octave-qobject.cc:91/> <http://octave-qobject.cc:91
>>>>> <http://octave-qobject.cc:91/>>:18: error: no matching function for
>>>>> call to 'objc_msgSend'
>>>>>   process_info = objc_msgSend (reinterpret_cast<id>
>>>>> (process_info_class),
>>>>>                  ^~~~~~~~~~~~
>>>>
>>>> Hi Ben,
>>>>
>>>> Thanks for testing on Catalina! I don't have a Catalina box yet: I'm
>>>> not upgrading my main machines, and I can't get Catalina to install
>>>> under VMware.
>>>>
>>>> I think this was introduced by change 27575 - the App Nap/pause fix
>>>> - not 27624.
>>>>
>>>> I'm afraid I have no idea how to get this working, and I don't have
>>>> time to do research. The C/Obj-C interface changed with the macOS
>>>> 10.15 Catalina SDK, and I don't really understand it.
>>>>
>>>> I suggest we just modify the #ifs to completely disable the App
>>>> Nap/Objective-C stuff on Catalina and later until someone comes
>>>> along who actually knows what they're doing and can fix it for real.
>>>>
>>>> Cheers,
>>>> Andrew
>>> Hi Andrew,
>>> Do you think it is sufficient to back out one or two of your changesets?
>>> Ben
>>
>> It would be sufficient to back out change 27575. But I don't know if
>> we want to do that: then we'd be back to the buggy
>> pause()-takes-too-long behavior. Modifying the #ifs to disable it on
>> just Catalina shouldn't be hard.
>>
>> Cheers,
>> Andrew
> 
> Thanks Andrew,
> 
> I replaced Q_OS_MAC with Q_OS_MAC_REMOVE in octave-qobject.cc
> <http://octave-qobject.cc> and am able to build again.
> 
> Ben
> 

I have submitted a patch that suggests just disabling this App
Nap/objc_msgSend stuff on Mojave/Catalina/newer macOS versions.

https://savannah.gnu.org/bugs/index.php?57754

Fixes the build for me, while preserving the performance fix for older
macOS versions. Can you test this too?

Cheers,
Andrew