install qt5.14.2 on rhel6.9, but with xcb issues
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I build qt5.14.2 on rhel6.9 successfully from source codes with default options, and then use it to build my qt-application. And then I met with xcb issue when I launch my built qt-application. Then I tried rebuild qt5.14.2 on rhel6.9 with xcb options, then I met with errors about xcb settings, such as:
ERROR: Feature 'xcb' was enabled, but the pre-condition 'features.thread && features.xkbcommon && libs.xcb' failed.
ERROR: Feature 'xcb-xlib' was enabled, but the pre-condition 'features.xlib && libs.xcb_xlib' failed.
After I install all xcb related lib on my rhel6.9 machine, the above errors still exist. -
I build qt5.14.2 on rhel6.9 successfully from source codes with default options, and then use it to build my qt-application. And then I met with xcb issue when I launch my built qt-application. Then I tried rebuild qt5.14.2 on rhel6.9 with xcb options, then I met with errors about xcb settings, such as:
ERROR: Feature 'xcb' was enabled, but the pre-condition 'features.thread && features.xkbcommon && libs.xcb' failed.
ERROR: Feature 'xcb-xlib' was enabled, but the pre-condition 'features.xlib && libs.xcb_xlib' failed.
After I install all xcb related lib on my rhel6.9 machine, the above errors still exist.@onroad Please provide the config.log file content.
"And then I met with xcb issue when I launch my built qt-application" - there is a simple way to debug Qt plug-in problems: set QT_DEBUG_PLUGINS env variable before starting your app and check the app output to see why the plug-in could not be loaded, see https://doc.qt.io/qt-6/debug.html.
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@onroad Please provide the config.log file content.
"And then I met with xcb issue when I launch my built qt-application" - there is a simple way to debug Qt plug-in problems: set QT_DEBUG_PLUGINS env variable before starting your app and check the app output to see why the plug-in could not be loaded, see https://doc.qt.io/qt-6/debug.html.
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@jsulm Thanks for the reply. Did you want the config.log the first time I built qt5.14.2 successfully or the second time I built with xcb options with configuration erros? Or both?
Thank you!
