Building QT 5.5 from source on CentOS 6

nobody

Hi,

I was able to build QT 4 but could not build the 5.5, I searched the wiki build document, not avail. Appreciate clues what I could be missing?

$ configure --prefix=~/qtinstall -opensource -confirm-license -nomake examples -nomake tests

qtbase/src/plugins/platforms/xcb/qxcbconnection_xi2.cpp:483:14: error: ‘XI_TouchBegin’ was not declared in this scope
case XI_TouchBegin:
^
qtbase/src/plugins/platforms/xcb/qxcbconnection_xi2.cpp:484:14: error: ‘XI_TouchUpdate’ was not declared in this scope
case XI_TouchUpdate:
^
qtbase/src/plugins/platforms/xcb/qxcbconnection_xi2.cpp:485:14: error: ‘XI_TouchEnd’ was not declared in this scope
case XI_TouchEnd:
^

qtbase/src/plugins/platforms/xcb/qxcbconnection_xi2.cpp:965:105: warning: unused parameter ‘eventListener’ [-Wunused-parameter]
bool QXcbConnection::xi2HandleTabletEvent(void *event, TabletData *tabletData, QXcbWindowEventListener *eventListener)

make[9]: *** [.obj/qxcbconnection_xi2.o] Error 1
make[8]: *** [sub-xcb_qpa_lib-pro-make_first-ordered] Error 2
make[7]: *** [sub-xcb-make_first] Error 2
make[6]: *** [sub-platforms-make_first] Error 2
make[5]: *** [sub-plugins-make_first] Error 2
make[4]: *** [sub-src-make_first] Error 2
make[3]: *** [module-qtbase-make_first] Error 2
make[2]: *** [QT/5.5.0] Error 2
make[1]: *** [QT/5.5.0/CMakeFiles/QT5.5.0.dir/all] Error 2
make: *** [all] Error 2

Thank you.

jup

nobody

I added -no-xcb which I shouldn't as I will run the qt on vm via vnc. Anyway, it got following new error:

qtbase/src/plugins/platforms/xcb/qxcbconnection_xi2.cpp:178:18: error: ‘XITouchClass’ was not declared in this scope
case XITouchClass:
^
make[9]: *** [.obj/qxcbconnection_xi2.o] Error 1
make[8]: *** [sub-xcb-plugin-pro-make_first-ordered] Error 2
make[7]: *** [sub-xcb-make_first] Error 2
make[6]: *** [sub-platforms-make_first] Error 2
make[5]: *** [sub-plugins-make_first] Error 2
make[4]: *** [sub-src-make_first] Error 2
make[3]: *** [module-qtbase-make_first] Error 2

nobody

Fixed by adding -qt-xcb.

Thanks.

SGaist

Hi and welcome to devnet,

Glad you out and thanks for sharing your solution.

Out of curiosity, do you have the xcb dev package installed on your system ?

nobody

Hi,

Thanks for your response, I do have libxcb-devel-1.9.1-3.el6.x86_64 package installed, but I've just found out that the libqxcb.so is not included in plugins/platforms causing application errors of xcb was not found in qt plugins. I have already configured Qt with -qt-xcb why the xcb is missing in plugins?

Thank you and appreciate it.

jup

SGaist

You are missing a dependency for those symbols that's why it's not built

nobody

Thanks for the response, could you elaborate what depedendies I could miss for libqxcb plugin? I've followed the wiki to install all the depedencies:

ruby flex libxcb libxcb-devel libXrender libXrender-devel xcb-util-wm xcb-util-wm-devel xcb-util xcb-util-devel xcb-util-image xcb-util-image-devel xcb-util-keysyms xcb-util-keysyms-devel gstreamer gstreamer-devel

Thank you so much and approeciate it.

nobody

Fixed by moving to another clean machine.

Thanks your response.