Queries regarding the running the init-repository after downloading the Qt source code

Pradeep Kumar

@SGaist

thanks you for your answer,

But still if i do the changes and want to compile and see the changes what do i do.

SGaist

What do you mean by that ?

You'll need to run a unit test or a small application that validates your changes.

Pradeep Kumar

i have taken sub modules in Qt, having a query.

do we need to have desktop kit configured for compiling source code.
or do we need to configure using the qmake , generated by qt source code. ( i am using linux machine).

SGaist

If you want to build one of the modules through Qt Creator, you have to make a kit with your custom built Qt.

Pradeep Kumar

yes i have configured the kit with custom built of Qt, i have compiled few modules , thanks for the answer.

i found that qtbase submodule is not compiling, because qconfig.h and qconfig.cpp is not found, but when i used make command to build the Qt source code through terminal, i found those classes in build folder, but not in Qt source code.

do i have to copy from build folder to Qt source code, or do i have to run , update and ./init-repository once again for getting those classes for qtbase.?.

the answer will be valuable for compiling the qtbase submodule.

SGaist

For the qtbase module, do the initial build on the command line. Once it's done you can start hacking on it.

Pradeep Kumar

i have two folders qt5 (which is the source folder) and qt-build(which is the build folder)
i am using qt-build folder to use make command for compilation.
after moving into directory qt-build.

cd qt-build:
after moving to qt-build folder , i used the following command to compile in terminal.

qt-build : make module-qtbase ,

and opened qtbase submodule from qt5(source folder) in Qt creator for compilation, again its showing qconfig.cpp and qconfig.h is not present connection terminated.

so what do i need to do for getting qconfig.h and qconfig.cpp files to qtbase of qt5(source folder) , i observed qconfig.h and qconfig.cpp files are present in qtbase of qt-build folder.

even though compiling in terminal , not able to view in Qt as files are not present.
please guide me o compile this submodule in Qt creator, rest of the sub modules compiled in Qt creator without any errors.

Pradeep Kumar

i am getting this error

/root/qt5/qtbase/src/corelib/global/qlibraryinfo.cpp:60:23: fatal error: qconfig.cpp: No such file or directory
#include "qconfig.cpp"
^
compilation terminated.
make[2]: *** [.obj/qlibraryinfo.o] Error 1
make[2]: Leaving directory /root/b/src/corelib' make[1]: *** [sub-corelib-make_first] Error 2 make[1]: Leaving directory /root/b/src'
make: *** [sub-src-make_first] Error 2

i searched for qconfig.h and qconfig.cpp in qtbase submodule of Qt source folder, i didnt find.

but in build directory , i found in the respective qtbase submodule,

please provide necessary help.

should i copy from build folder to source folder?.

SGaist

No, don't copy anything around, these are generated files.

Use the Import build option when configuring the project.

In any case, what part of qtbase do you plan to hack on ?

Pradeep Kumar

@SGaist

i posted the previous question because i was compiling the sub modules using the configured kit of custom built Qt,

more than 25 sub modules was compiled, so was eager to know why qtbase was not compiling , because of qconfig files, any other configuration has to be done for the qtbase submodule?. for compiling using Qt creator.

SGaist

qtbase is a special case. Like the name implies it contains all the code which the other modules are built upon.

Again, what part of qtbase do you plan to work on ?

Pradeep Kumar

Yes qtbase is a special module which is the base.

And i was able to compile with the kit configured from the customized built of Qt source code,of the qmake used.

Thanks friends for your solutions provided which helped me to compile the qt5 Source code.

Thanks,

SGaist

Good

Then please mark the thread as solved using the "Topic Tools" button so that other forum users may know a solution has been found :)

Pradeep Kumar

@SGaist

Thank you so much for your guidance which helped me to build Qt source code.
It is good to learn about using custom built Qt.

Thank You.

Pradeep Kumar

Hi,

As again coming back to Qt source code after a long time,
i was following the same steps as i followed earlier on how to configure the qt.
Earlier it was working.

Again i cloned qt5.9

while configuring i got the error as

user@user-Inspiron-3558:~/Documents/qtsourcecode_contibution/qt-build$ ../qt5/configure -developer-build -opensource -nomake examples -nomake tests

cd qtbase
/home/user/Documents/qtsourcecode_contibution/qt5/qtbase/configure -top-level -developer-build -opensource -nomake examples -nomake tests
Please make sure to unset the QMAKESPEC, XQMAKESPEC, QMAKEPATH,
and QMAKEFEATURES environment variables prior to building Qt.

Why i am getting this error?. do i need to do any other configuration?.

Thanks,

SGaist

Do you have any of these environment variables defined ?

Pradeep Kumar

HI,

how do i check how these variables defined, and where it has to be defined?.

Thanks,

jsulm

@Pradeep-Kumar In the same terminal: call "env" and see whether any of those variables is in the output.
Or just do:

echo $QMAKESPEC