QT 5.12.2 installation error

ArunQT

Hi All

I am trying to compile 5.12.2 on RHEL 7.4 getting below error,

Command, ./configure -system-xcb
Error:
Note: Also available for Linux: linux-clang linux-icc
Note: No wayland-egl support detected. Cross-toolkit compatibility disabled.
ERROR: Feature 'xcb' was enabled, but the pre-condition 'features.thread && features.xkbcommon && libs.xcb' failed.
ERROR: Feature 'system-xcb' was enabled, but the pre-condition 'features.xcb && tests.xcb_syslibs' failed.

xcb related libraries are already installed thru OS package. but still got below features error.
do I need to specifically mention the OS path for the libraries?

Thanks
Kumar

SGaist

Hi and welcome to devnet,

Do you have the libxkbcommon development package installed ?

ArunQT

Hi SGaist

thanks for the response.

Yes, I have installed below XKB packages,

libxkbcommon-0.7.1-1
libxkbcommon-x11-0.7.1-1

Thanks
Kumar

jsulm

@arunqt These are not development packages. You need also libxkbcommon*-dev

ArunQT

Hi,

thanks, now it got reduced to one error,

ERROR: Feature 'system-xcb' was enabled, but the pre-condition 'features.xcb && tests.xcb_syslibs' failed.

any other packages I need?

Thanks
Kumar

jsulm

@arunqt Add -v parameter to configure call and check the log - you should see more detailed information what exactly is missing.

SGaist

Did you clean up before calling configure again ?

On a side note, please use out of source builds, so when something goes wrong you can just nuke the build folder and start new.

ArunQT

Hi,

Yes, I am removing the entire build folder each time I run the configure.

Thanks
Kumar

SGaist

Then as already suggested, add the -v option and check the tests logs to see what exactly failed when the xcb detection is running.

ArunQT

Hi,

Now I have got all dependencies fixed and there is no error, I am building now...

Thanks a lot for your support.

Regards
Kumar