As of version 15.0, CrossOver no longer uses this library. This article left in place for reference only.

Description

Wine needs this library in order for Windows applications to bring up a graphical user interface. In other words, without it Windows applications will not work.

Note

CrossOver 12 to 14 shipped its own libxcb library so you can normally ignore this issue, even if cxdiag reports it when run manually. You should not be getting this warning from CrossOver's GUI tools however.

Resolution

CrossOver no longer uses this library (and cxdiag won't check for it) as of 15.0.

32-bit Debian or Ubuntu : apt-get install libxcb1
64-bit Debian or Ubuntu : apt-get install libxcb1:i386
32/64-bit Fedora : dnf install libxcb.i686
32/64-bit Mandriva : urpmi libxcb1
32-bit SUSE : zypper install libxcb1 (or xorg-x11-libxcb)
64-bit SUSE : zypper install libxcb1-32bit (or xorg-x11-libxcb-32bit)
32-bit Arch : pacman -Syu libxcb
64-bit Arch : pacman -Syu lib32-libxcb