qt5base-lts/config.tests/qpa/xcb-xkb/xcb-xkb.cpp

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#include <xcb/xcb.h>

// This is needed to make Qt compile together with XKB. xkb.h is using a variable
// which is called 'explicit', this is a reserved keyword in c++ */
#define explicit dont_use_cxx_explicit
#include <xcb/xkb.h>
#undef explicit

int main(int, char **)
{
    int primaryScreen = 0;

    xcb_connection_t *connection = xcb_connect("", &primaryScreen);

    // This won't compile unless libxcb >= 1.5 which defines XCB_ATOM_PRIMARY.
    int xcbAtomPrimary = XCB_ATOM_PRIMARY;

    return 0;
}