Qt on Raspberry Pi - QXmlAttributes differs from the implicit declaration

tmaczek

Hello!
Recently I've been following the guide https://wiki.qt.io/Raspberry_Pi_Beginners_Guide and everything went fine, until I've had to build the Qtbase. I ran the configuration and next step is make command. And this is output of this command:

In file included from ../../include/QtXml/qxml.h:1:0,
                 from dom/qdom.cpp:54:
../../include/QtXml/../../src/xml/sax/qxml.h:121:5: error: function ‘QXmlAttributes::QXmlAttributes(QXmlAttributes&&)’ defaulted on its first declaration with an exception-specification that differs from the implicit declaration ‘QXmlAttributes::QXmlAttributes(QXmlAttributes&&)’
Makefile:1338: recipe for target '.obj/qdom.o' failed
make[2]: *** [.obj/qdom.o] Error 1
make[2]: Leaving directory '/home/anon/opt/qt5/qtbase/src/xml'
Makefile:295: recipe for target 'sub-xml-make_first' failed
make[1]: *** [sub-xml-make_first] Error 2
make[1]: Leaving directory '/home/anon/opt/qt5/qtbase/src'
Makefile:46: recipe for target 'sub-src-make_first' failed
make: *** [sub-src-make_first] Error 2

To be honest, I have no idea how to handle that problem.
Some details:
Host: Debian Jessie 64 bit
Raspi 3 Raspbian installed from the guide
Qt version from github (link in guide)

Thank You in advance for spending you precius time!

VRonin

@tmaczek said in Qt on Raspberry Pi - QXmlAttributes differs from the implicit declaration:

Qt version from github

Qt official repository is not github, it's http://code.qt.io could you try with that one?

You might also want to take a look at https://forum.qt.io/topic/73531/cross-compile-qt-5-on-pi-2-undefined-reference-to-pcre_get_stringtable_entries/2

tmaczek

Thank you for your response! Here i come with the answer:

Qt official repository is not github, it's http://code.qt.io could you try with that one?

Yes, I meant "Qt from git". I tried with that link:

git clone git://code.qt.io/qt/qt5.git

(from guide). Do you know what is the possible cause of these errors?

You might also want to take a look at https://forum.qt.io/topic/73531/cross-compile-qt-5-on-pi-2-undefined-reference-to-pcre_get_stringtable_entries/2

I used this script Qtrpi, but I got alot of errors: http://pastebin.com/JjXJtyQD
But I personally would like to use the original step-by-step guide rather than automation script.

Thanks in advance!

stryga42

I guess you cross-compile on a host. I once tried to cross-compile a newer Qt version for Pi while my host had an older release installed. Although I tried to keep both source trees well separated, i never managed to get a successful build. Then I started from scratch with Qt5.6.2 for both host and Raspberry and everything went fine.
Probably you use unintentionally header and implementation files from different Qt versions.
Please double check you -sysroot in the configure command line and which sources are visible from where you execute configure.