Add configure option to minimize xcb runtime dependencies

Some of the xcb- libraries we depend upon are not (yet) common across
distributions. This is problematic for binaries that should be working
on different distributions. The patch mitigates this by:

Adding the files from
  libxcb-proto (version 0.1.6), compiled with libxcb-1.5
  xcb-util (version 0.3.9)
  xcb-util-image (version 0.3.9)
  xcb-util-keysyms (version 0.3.9)
  xcb-util-renderutil (version 0.3.8)
  xcb-util-wm (version 0.3.9)

from xcb.freedesktop.org/dist to src/3rdparty/xcb.

Adding a configure option '-qt-xcb' to use the sources instead of
linking to the respective runtime libraries.

Task-number: QTBUG-27803
Change-Id: I6ea87daa382871b2b9072a601511523fa0b9f44b
Reviewed-by: Samuel Rødal <samuel.rodal@digia.com>

1 files changed, 18 insertions, 0 deletions

diff --git a/src/3rdparty/xcb/include/xcb/xcb_atom.h b/src/3rdparty/xcb/include/xcb/xcb_atom.h
new file mode 100644
index 0000000000..d5c4d6baa7
--- /dev/null
+++ b/src/3rdparty/xcb/include/xcb/xcb_atom.h
@@ -0,0 +1,18 @@
+#ifndef __XCB_ATOM_H__
+#define __XCB_ATOM_H__
+
+#include <xcb/xcb.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+char *xcb_atom_name_by_screen(const char *base, uint8_t screen);
+char *xcb_atom_name_by_resource(const char *base, uint32_t resource);
+char *xcb_atom_name_unique(const char *base, uint32_t id);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __XCB_ATOM_H__ */