Rebuild of libqxcd.so required

bmoul

I have tried to build QT from source, but find it does not build the libqxcb.so library. The version that gets downloaded as part of the plugins/platforms directory is not compatible with my system, as it appears to have been built against newer versions of libc.so than is currently on my system. Therefore, I would like to rebuild libgxcd.so on my system, but can't figure out how to do that. I tried to add the -qt-xcb flag to the configure call, but get the following error as a result: "ERROR: Feature 'xcb' was enabled, but the pre-condition 'features.thread && features.xkbcommon && libs.xcb' failed." I do have libxcb.so.1.1.0 on my system (from libxcd-1.12-4 package). It appears to me that the source for this library is included in the Src/qtbase/src/plugins/platforms/xcb folder. But I don't know how to get this to build.

SGaist

Hi and welcome to devnet,

You are missing the libxkbcommon development packages on your system.

bmoul

@sgaist That package is not listed as a requirement for CentOS6. As such, it also does not seem to be available for CentOS6 either. It is only listed as a requirement for 7 (and only seems to be available for CentOS7)

jsulm

@bmoul said in Rebuild of libqxcd.so required:

CentOS6

You did not say that at the beginning.
Which Qt version are you trying to build?

bmoul

Sorry. I'm trying to build QT version 5.13.1 on RedHat6

SGaist

Then you either have to build libxkbcommon yourself or use an older version of Qt, i.e. 5.12.3.

jsulm

@bmoul According to this: https://doc.qt.io/qt-5/linux.html you have to use RedHat7 for current Qt. On RedHat6 I would suggest to use an older Qt version (don't know which would be the most current one supporting RedHat6).

bmoul

@sgaist Thanks. I will try that.

bmoul

This post is deleted!

mrjj

@bmoul
well quick search says around
https://doc.qt.io/archives/qt-5.11/supported-platforms-and-configurations.html