Qt5 development primer

Bloops

hi .

I am currently doing the Qt5 manipulation and I have one little question ^^ .

Is it possible to realize a configuration (./configure) in static Qt5 mode (-static) by incorporing the QtSerialPort class, which we must add to our pre-existing library thanks to that manipulation: http://qt-project.org/wiki/QtSerialPort ?

If this is not possible to change QtSerialPort in static library, but just the QT5 library . When I will compile my project which uses QtSerialPort, will it run like a static program or I need to include a .so (or dll) ?

Sorry for my bad english .

tonys10

I am having trouble building Qt5......

I have Visual Studio 2008 andf have installed the latest SDK......

C:\qt5>configure -developer-build -opensource -nomake examples -nomake tests

C:/qt5/qtbase/configure -developer-build -opensource -nomake examples -nomake
tests
Please wait while bootstrapping configure ...

    cl -c -Yc -nologo -Zm200 -Zc:wchar_t -MT -W3 -GR -EHsc -w34100 -w34189

-DUNICODE -DQT_NODLL -DQT_NO_CODECS -DQT_NO_TEXTCODEC -DQT_NO_UNICODETABLES -DQT
_LITE_COMPONENT -DQT_NO_COMPRESS -DQT_NO_THREAD -DQT_NO_QOBJECT -DQT_NO_GEOM_VAR
IANT -D_CRT_SECURE_NO_DEPRECATE -DQT_BOOTSTRAPPED -DCOMMERCIAL_VERSION -I"....
include" -I"....\include\QtCore" -I"....\include\QtCore\5.0.0" -I"....\includ
e\QtCore\5.0.0\QtCore" -I"C:\qt5\qtbase\tools\shared" -I"C:\qt5\qtbase\mkspecs\w
in32-msvc2008" -Fpconfigure_pch.pch -Foconfigure_pch.obj -TP C:\qt5\qtbase\tools
\configure\configure_pch.h

Command line warning D4002 : ignoring unknown option '-Zc'
Command line warning D4002 : ignoring unknown option '-Z:'
Command line warning D4002 : ignoring unknown option '-Zw'
Command line warning D4002 : ignoring unknown option '-Zc'
Command line warning D4002 : ignoring unknown option '-Zh'
Command line warning D4002 : ignoring unknown option '-Zr'
Command line warning D4002 : ignoring unknown option '-Z_'
Command line warning D4002 : ignoring unknown option '-Zt'
Command line warning D4002 : ignoring unknown option '-w34100'
Command line warning D4002 : ignoring unknown option '-w34189'

configure_pch.h
....\include\QtCore../../src/corelib/global/qglobal.h(45) : fatal error C1083:
Cannot open include file: 'stddef.h': No such file or directory
NMAKE : fatal error U1077: 'cl' : return code '0x2'
Stop.
*** qtbase/configure exited with non-zero status.

Sfiet_Konstantin

I have a proble compiling Qt5 master recently
(Linux x86_64 Mageia, GCC 4.7.1)

make[2] : on entre dans le répertoire « /home/qtdev/srcs/qt5/qtsystems/src/systeminfo »
g++ -c -m64 -pipe -g -std=c++0x -fvisibility=hidden -fvisibility-inlines-hidden -Wall -W -D_REENTRANT -fno-exceptions -fPIC -DQT_SHARED -DQT_COMPILER_SUPPORTS_SSE2 -DQT_COMPILER_SUPPORTS_SSE3 -DQT_COMPILER_SUPPORTS_SSSE3 -DQT_COMPILER_SUPPORTS_SSE4_1 -DQT_COMPILER_SUPPORTS_SSE4_2 -DQT_COMPILER_SUPPORTS_AVX -DQT_COMPILER_SUPPORTS_AVX2 -DQT_BUILD_SYSTEMINFO_LIB -DQT_MAKEDLL -DQT_NO_CAST_TO_ASCII -DQT_ASCII_CAST_WARNINGS -DQT_MOC_COMPAT -DQT_USE_QSTRINGBUILDER -DQT_DEPRECATED_WARNINGS -DQT_NO_MTLIB -DQT_NO_SFW_NETREG -DQT_NO_OFONO -DQT_NO_UDISKS -DQT_NO_LIBSYSINFO -DQT_QML_LIB -DQQmlImageProvider=QQuickImageProvider -DQT_NETWORK_LIB -DQT_GUI_LIB -DQT_CORE_LIB -DQT_NO_EXCEPTIONS -D_LARGEFILE64_SOURCE -D_LARGEFILE_SOURCE -I/home/qtdev/mkspecs/default -I. -I/home/qtdev/include/QtCore -I/home/qtdev/include/QtGui -I/home/qtdev/include/QtNetwork -I/home/qtdev/include -I/home/qtdev/include/QtQml -I/home/qtdev/include/QtJsonDb -I../../include/QtSystemInfo/5.0.0 -I../../include/QtSystemInfo/5.0.0/QtSystemInfo -I../../include -I../../include/QtSystemInfo -I../../include -I.rcc/debug-shared -I.moc/debug-shared -o .obj/debug-shared/qnetworkinfo_linux.o qnetworkinfo_linux.cpp
In file included from qnetworkinfo_linux.cpp:56:0:
/usr/include/bluetooth/bluetooth.h: In function ‘uint64_t bt_get_le64(const void*)’:
/usr/include/bluetooth/bluetooth.h:159:9: erreur: expected identifier before ‘’ token
/usr/include/bluetooth/bluetooth.h:159:9: erreur: expected ‘,’ or ‘...’ before ‘(’ token
/usr/include/bluetooth/bluetooth.h:159:9: erreur: expected ‘;’ at end of member declaration
/usr/include/bluetooth/bluetooth.h:159:9: erreur: ‘__v’ does not name a type
/usr/include/bluetooth/bluetooth.h:159:9: erreur: ‘typeof’ was not declared in this scope
/usr/include/bluetooth/bluetooth.h:159:9: erreur: ‘struct bt_get_le64(const void)::<anonymous>’ has no member named ‘__v’
/usr/include/bluetooth/bluetooth.h: In function ‘uint64_t bt_get_be64(const void*)’:
/usr/include/bluetooth/bluetooth.h:164:9: erreur: expected identifier before ‘’ token
/usr/include/bluetooth/bluetooth.h:164:9: erreur: expected ‘,’ or ‘...’ before ‘(’ token
/usr/include/bluetooth/bluetooth.h:164:9: erreur: expected ‘;’ at end of member declaration
/usr/include/bluetooth/bluetooth.h:164:9: erreur: ‘__v’ does not name a type
/usr/include/bluetooth/bluetooth.h:164:9: erreur: ‘typeof’ was not declared in this scope
/usr/include/bluetooth/bluetooth.h:164:9: erreur: ‘struct bt_get_be64(const void)::<anonymous>’ has no member named ‘__v’
/usr/include/bluetooth/bluetooth.h: In function ‘uint32_t bt_get_le32(const void*)’:
/usr/include/bluetooth/bluetooth.h:169:9: erreur: expected identifier before ‘’ token
/usr/include/bluetooth/bluetooth.h:169:9: erreur: expected ‘,’ or ‘...’ before ‘(’ token
/usr/include/bluetooth/bluetooth.h:169:9: erreur: expected ‘;’ at end of member declaration
/usr/include/bluetooth/bluetooth.h:169:9: erreur: ‘__v’ does not name a type
/usr/include/bluetooth/bluetooth.h:169:9: erreur: ‘typeof’ was not declared in this scope
/usr/include/bluetooth/bluetooth.h:169:9: erreur: ‘struct bt_get_le32(const void)::<anonymous>’ has no member named ‘__v’
/usr/include/bluetooth/bluetooth.h: In function ‘uint32_t bt_get_be32(const void*)’:
/usr/include/bluetooth/bluetooth.h:174:9: erreur: expected identifier before ‘’ token
/usr/include/bluetooth/bluetooth.h:174:9: erreur: expected ‘,’ or ‘...’ before ‘(’ token
/usr/include/bluetooth/bluetooth.h:174:9: erreur: expected ‘;’ at end of member declaration
/usr/include/bluetooth/bluetooth.h:174:9: erreur: ‘__v’ does not name a type
/usr/include/bluetooth/bluetooth.h:174:9: erreur: ‘typeof’ was not declared in this scope
/usr/include/bluetooth/bluetooth.h:174:9: erreur: ‘struct bt_get_be32(const void)::<anonymous>’ has no member named ‘__v’
/usr/include/bluetooth/bluetooth.h: In function ‘uint16_t bt_get_le16(const void*)’:
/usr/include/bluetooth/bluetooth.h:179:9: erreur: expected identifier before ‘’ token
/usr/include/bluetooth/bluetooth.h:179:9: erreur: expected ‘,’ or ‘...’ before ‘(’ token
/usr/include/bluetooth/bluetooth.h:179:9: erreur: expected ‘;’ at end of member declaration
/usr/include/bluetooth/bluetooth.h:179:9: erreur: ‘__v’ does not name a type
/usr/include/bluetooth/bluetooth.h:179:9: erreur: ‘typeof’ was not declared in this scope
/usr/include/bluetooth/bluetooth.h:179:9: erreur: ‘struct bt_get_le16(const void)::<anonymous>’ has no member named ‘__v’
/usr/include/bluetooth/bluetooth.h: In function ‘uint16_t bt_get_be16(const void*)’:
/usr/include/bluetooth/bluetooth.h:184:9: erreur: expected identifier before ‘’ token
/usr/include/bluetooth/bluetooth.h:184:9: erreur: expected ‘,’ or ‘...’ before ‘(’ token
/usr/include/bluetooth/bluetooth.h:184:9: erreur: expected ‘;’ at end of member declaration
/usr/include/bluetooth/bluetooth.h:184:9: erreur: ‘__v’ does not name a type
/usr/include/bluetooth/bluetooth.h:184:9: erreur: ‘typeof’ was not declared in this scope
/usr/include/bluetooth/bluetooth.h:184:9: erreur: ‘struct bt_get_be16(const void)::<anonymous>’ has no member named ‘__v’

Seems related to bluetooth, but since I don't know bluez very well, I don't know where to look at.

sierdzio

Have you updated QTDIR and PATH before starting the build? It seems that your search paths are polluted, or bluetooth.h - maybe - bluetooth.h is not ready for C++11, or something entirely different is happening :P.

Sfiet_Konstantin

This issue happened to me quite recently actually. (< 2 weeks) my bluetooth.h did not had any problems before ...

Sfiet_Konstantin

Seems to be ok with latest updates

alpha_one_x86

At the compilation under Windows I have:
Creating qmake...
g++ -c -oproject.o -O -IC:\Users\user\Desktop\qt5-src\qtbase/qmake -IC:\Users\us
er\Desktop\qt5-src\qtbase/qmake/generators -IC:\Users\user\Desktop\qt5-src\qtbas
e/qmake/generators/unix -IC:\Users\user\Desktop\qt5-src\qtbase/qmake/generators/
win32 -IC:\Users\user\Desktop\qt5-src\qtbase/qmake/generators/mac -IC:\Users\use
r\Desktop\qt5-src\qtbase/qmake/generators/integrity -IC:\Users\user\Desktop\qt5-
src\qtbase/include -IC:\Users\user\Desktop\qt5-src\qtbase/include/QtCore -IC:\Us
ers\user\Desktop\qt5-src\qtbase/include/QtCore/5.0.0 -IC:\Users\user\Desktop\qt5
-src\qtbase/include/QtCore/5.0.0/QtCore -IC:\Users\user\Desktop\qt5-src\qtbase/s
rc/corelib/global -IC:\Users\user\Desktop\qt5-src\qtbase/mkspecs/win32-g++ -IC:
Users\user\Desktop\qt5-src\qtbase/tools/shared -DQT_NO_TEXTCODEC -DQT_NO_UNICODE
TABLES -DQT_LITE_COMPONENT -DQT_NO_COMPRESS -DUNICODE -DHAVE_QCONFIG_CPP -DQT_BU
ILD_QMAKE -DQT_NO_THREAD -DQT_NO_QOBJECT -DQT_NO_GEOM_VARIANT -DQT_NO_DATASTREAM
-DQT_BOOTSTRAPPED -DQMAKE_OPENSOURCE_EDITION project.cpp
g++: CreateProcess: No such file or directory
mingw32-make: *** [project.o] Error 1
del /f project.o main.o makefile.o unixmake.o unixmake2.o mingw_make.o option.o
winmakefile.o projectgenerator.o property.o meta.o makefiledeps.o metamakefile.o
xmloutput.o pbuilder_pbx.o borland_bmake.o msvc_nmake.o msvc_vcproj.o msvc_vcxp
roj.o msvc_objectmodel.o msbuild_objectmodel.o registry.o gbuild.o cesdkhandler.
o qbitarray.o qbuffer.o qarraydata.o qbytearray.o qcryptographichash.o qvsnprint
f.o qbytearraymatcher.o qconfig.o qdatetime.o qdir.o qdiriterator.o qfiledevice.
o qfile.o qtemporaryfile.o qfileinfo.o qabstractfileengine.o qfilesystementry.o
qfilesystemengine.o qfilesystemengine_win.o qfilesystemiterator_win.o qfsfileeng
ine.o qfsfileengine_iterator.o qfsfileengine_win.o qglobal.o qhash.o qiodevice.o
qlibraryinfo.o qlist.o qlinkedlist.o qlocale.o qlocale_tools.o qlocale_win.o qm
alloc.o qmap.o qregexp.o qtextcodec.o qutfcodec.o qstring.o qstringlist.o qstrin
gbuilder.o qsystemerror.o qsystemlibrary.o qtextstream.o quuid.o qvector.o qsett
ings.o qsettings_win.o qvariant.o qmetatype.o qxmlstream.o qxmlutils.o qnumeric.
o qlogging.o
Could Not Find C:\Users\user\Desktop\qt5-src\qtbase\qmake\project.o
g++ -c -oproject.o -O -IC:\Users\user\Desktop\qt5-src\qtbase/qmake -IC:\Users\us
er\Desktop\qt5-src\qtbase/qmake/generators -IC:\Users\user\Desktop\qt5-src\qtbas
e/qmake/generators/unix -IC:\Users\user\Desktop\qt5-src\qtbase/qmake/generators/
win32 -IC:\Users\user\Desktop\qt5-src\qtbase/qmake/generators/mac -IC:\Users\use
r\Desktop\qt5-src\qtbase/qmake/generators/integrity -IC:\Users\user\Desktop\qt5-
src\qtbase/include -IC:\Users\user\Desktop\qt5-src\qtbase/include/QtCore -IC:\Us
ers\user\Desktop\qt5-src\qtbase/include/QtCore/5.0.0 -IC:\Users\user\Desktop\qt5
-src\qtbase/include/QtCore/5.0.0/QtCore -IC:\Users\user\Desktop\qt5-src\qtbase/s
rc/corelib/global -IC:\Users\user\Desktop\qt5-src\qtbase/mkspecs/win32-g++ -IC:
Users\user\Desktop\qt5-src\qtbase/tools/shared -DQT_NO_TEXTCODEC -DQT_NO_UNICODE
TABLES -DQT_LITE_COMPONENT -DQT_NO_COMPRESS -DUNICODE -DHAVE_QCONFIG_CPP -DQT_BU
ILD_QMAKE -DQT_NO_THREAD -DQT_NO_QOBJECT -DQT_NO_GEOM_VARIANT -DQT_NO_DATASTREAM
-DQT_BOOTSTRAPPED -DQMAKE_OPENSOURCE_EDITION project.cpp
g++: CreateProcess: No such file or directory
mingw32-make: *** [project.o] Error 1
Building qmake failed, return code 2

*** qtbase/configure exited with non-zero status.

but if I cd qtbase/qmake/;mingw32-make all it work.

gwfr

On MAC I encountered a problem: Under the last version of XCode you have to download the "command lines tools" seperatly from the xcode settings in the downloads pane.

GeneralPanic

I was getting "The Remote End Hung up Unexpectedly" when running "perl init-repository". I found that if I used the "-http" option at the end of that line, the failures stopped. It seems that the "git" protocol is a bit flaky. Making http the default in the "init-repository" script would make the process a bit more robust.

sierdzio

You can also rerun the script with "-f". Doesn't fix git protocol, but often it works on second try.

GeneralPanic

Yeah, unfortunately for me, re-runnng w/git kept failing at different points.

bibbinator

Hi,
I'm new to command line compiling and Git.

Thanks to the excellent "guide":http://qt-project.org/wiki/Building_Qt_5_from_Git I was able to build Qt from source. Now, with the latest beta 2 release, I'd like to update Qt.

My question is simple:

Do I need to run configure after:

git pull
git submodule update --recursive

Or can I just run make again without doing that?

A suggestion would be to update the "Getting Updates" section to include this answer as maybe others would wonder if they need to do that too.

Thanks,
Brett

sierdzio

Tricky. Depends on what has changed in the source code, really. If you have a solid CPU and a bit of time on your hands, you can definitely try just running make, and then if it fails, you should do a proper clean (git clean -dxf, check the link you provided for a submodule declaration), configure and make.

bibbinator

Thanks for your post. I modified the wiki page updates section with a note that clean and configure may need to be re-run.

invisible

I'm building on windows 7 x64 with msvc2010 sp1 nmake.

For some reason the naming convention is different then the beta release and incompatible with the vs-addin..

All my lib files, dll files etc are named Qt5[lib].dll/lib instead of Qt[lib]5.dll/lib

My config: configure -developer-build -opensource -nomake examples -nomake tests

lgeyer

See http://lists.qt-project.org/pipermail/development/2012-October/007215.html

cedrix

Hi,

First I have setup qt5 (both with the linux birnary file and by compiling it) on an Ubuntu 12.04 (and 11.10) KVM virtual machine. But I can't launch any graphical qt program. I have issue with QPainter: that kind of mistakes:

@cedric@cedric-virtual-machine:~/Qt5.0.0beta2/5.0.0-beta2/gcc/bin$ ./assistant
QWidget::paintEngine: Should no longer be called
QPainter::begin: Paint device returned engine == 0, type: 1
QWidget::paintEngine: Should no longer be called
QPainter::begin: Paint device returned engine == 0, type: 1
QPainter::font: Painter not active
QPainter::pen: Painter not active
...@

So I tried on a windows 32 bits virtual machine. First I installed it with the binary but I couldn't find our the right microsoft compiler so it could work. So I tryed to compile it with mingw32-make. It worked with the following config:
@configure -platform win32-g++ -opengl desktop@
Yeah I couldn't find the right version of direct X sdk so I had some issue and choose to use the opengl option.

This version doesn't work with qt creator. I don't know if it is suppoed to? I have an issue with "ABI detection failed. Make sur to use a matching compiler when building. No qml viewer." But I can launch the program named qmlviewer.exe. Also I can compile the following application with qmake.

pro file:
@######################################################################

Automatically generated by qmake (3.0) sam. 15. déc. 15:49:19 2012

######################################################################

QT += widgets
TEMPLATE = app
TARGET = test03withoutCreator
DEPENDPATH += .
INCLUDEPATH += .

Input

SOURCES += main.cpp
@

main.cpp
@#include <QGuiApplication>
#include <QPushButton>

Q_DECL_EXPORT int main(int argc, char *argv[]){
QGuiApplication app(argc, argv);

QPushButton button("work");
button.show();

return app.exec(&#41;;

}@

but then, I have no idea how to launch it. I did:
@qmake
mingw32-make release@
Then I put the binary file in qtbase/bin, but I when I launch the application, I get the following message:
"This application has requested the runtime to terminate it in an unusual way."
But the exemples and demos can be launch without any dll in their direcotry. I don't get how that is possible.

Someone know what I should do so I can compile and launch application?

Sincerly,

Cédric

fxtech

I'm having trouble building the final release on Windows 7 x64 with both VS2008 and VS2012. I have ActivePerl and Python 2.7 installed and in the path, and in both cases when I run "configure" I get this error:
@
'T:\home\Qt\5.0.0\qtbase\configure.exe' is not recognized as an internal or external command, operable program or batch file.
*** qtbase/configure exited with non-zero status.@

Any ideas?

sierdzio

-You should be running configure.exe on windows, not the bash script.-

Add a file named ".gitignore" to the root folder or comment out line 45 in configure.bat.

jamcguire

After several failed attempts at building, here's how I finally managed to get QT5 to build with Nuwen.net's MinGW 9.4, on Windows 7 64 bit SP1 without webkit.

I already had Nuwen's mingw 9.4 installed (9.5 is now available), this can be obtained from http://www.nuwen.net/mingw.html

This needs to be extracted to c:\mingw or similar, and c:\mingw\bin will need to be in the PATH env variable.

Then I copied c:\mingw\bin\make.exe to c:\mingw\bin\mingw32-make.exe

I then downloaded and installed the following:

http://www.python.org/ftp/python/3.3.0/python-3.3.0.amd64.msi
http://files.rubyforge.vm.bytemark.co.uk/rubyinstaller/rubyinstaller-1.9.3-p362.exe
http://downloads.activestate.com/ActivePerl/releases/5.16.1.1601/ActivePerl-5.16.1.1601-MSWin32-x64-296175.msi
https://msysgit.googlecode.com/files/Git-1.8.0-preview20121022.exe

I used the installers to set the path for python, ruby and perl.

I downloaded QT5 (27th Dec 2012):

git clone git://gitorious.org/qt/qt5.git qt5
cd qt5
perl init-repository

Configured QT5:

configure -developer-build -opensource -nomake examples -nomake tests -qt-pcre -qt-libjpeg -opengl desktop

Configure informed me that webkit would not be built due to a missing dependency, so no additional parameters were required to disable this.
I have an ATi Radeon graphics driver with builtin OpenGL support
By default configure sets pcre to 'system' at one point I downloaded and built the latest version of pcre, including the pcre16 library, I placed this into my system path, but ld was still unable to locate the library and there was no means of passing the -L parameter to ld from what I can tell, build would fail with 'unable to locate pcre16', once you specify -qt-pcre as per the above, the build will use the embedded pcre library and magically succeed.
Again, for me, build would fail without specifying -qt-libjpeg

I then simply ran 'make'

Good luck!