Issue with 5.11.1 compile: error: could not convert ‘{listener, data}’ from ‘<brace-enclosed initializer list>’
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Hi,
I'm trying to cross-compile 5.11.1 and receiving following error:make[4]: Entering directory `/home/piotro/minimyth-dev/script/qt/qt5/work/main.d/qt-everywhere-src-5.11.1/qtmultimedia/src/imports' cd multimedia/ && ( test -e Makefile || /home/piotro/minimyth-dev/script/qt/qt5/work/main.d/qt-everywhere-src-5.11.1/qtbase/bin/qmake -o Makefile /home/piotro/minimyth-dev/script/qt/qt5/work/main.d/qt-everywhere-src-5.11.1/qtmultimedia/src/imports/multimedia/multimedia.pro ) && make -f Makefile qwaylanddisplay.cpp: In member function ‘void QtWaylandClient::QWaylandDisplay::addRegistryListener(QtWaylandClient::RegistryListener, void*)’: qwaylanddisplay.cpp:315:35: error: could not convert ‘{listener, data}’ from ‘<brace-enclosed initialiser list>’ to ‘QtWaylandClient::QWaylandDisplay::Listener’ Listener l = { listener, data };Exactly the same build environment allows me to successfully build of 5.10.1 - so issue is IMHO in 5.11.1 sources.
gcc is 7.3.0 so I don't think issue is about too old compiler.
It looks I'm not alone with this error as there are posts on stack exchange about this issue - unfortunately without solution... -
Hi,
5.11.2 is almost out and 5.12 is around the corner, can you check these versions ?
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I think that, currently, you have to clone it from https://code.qt.io.
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I found a solution that worked for me, although there are other issues further into the install. I found the following post on StackOverflow: https://stackoverflow.com/questions/37776823/could-not-convert-from-brace-enclosed-initializer-list-to-struct
From this, I found that if you go to the struct definitions in the header files and remove the default values, it will compile. Like I said though, I have had other errors in the installation and have not been able to complete the install, so I do not know if these changes affect anything yet.
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I found a solution that worked for me, although there are other issues further into the install. I found the following post on StackOverflow: https://stackoverflow.com/questions/37776823/could-not-convert-from-brace-enclosed-initializer-list-to-struct
From this, I found that if you go to the struct definitions in the header files and remove the default values, it will compile. Like I said though, I have had other errors in the installation and have not been able to complete the install, so I do not know if these changes affect anything yet.
The problem here is that the Listener struct is not an aggregate in C++11, since it has Default Member Initializers (see https://en.wikipedia.org/wiki/C%2B%2B14#Aggregate_member_initialization). This also means that gcc 4.8 doesn't build this code out-of-the-box. I will fix that shortly when I fix a bunch of other gcc 4.8 incompatibilities.
