xorg-server.h defines _XSERVER64 which is used in X.h to choose the correct definition of XID this prevents a failure in the present.h configure test that disables DRI3 on X.Org 1.20 --- configure.ac | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/configure.ac b/configure.ac index ea41f41..2ddd750 100644 --- a/configure.ac +++ b/configure.ac @@ -194,8 +194,8 @@ AC_CHECK_HEADERS([misyncshm.h], [], [], AC_CHECK_HEADERS([present.h], [], [], [#include <X11/Xmd.h> #include <X11/Xproto.h> - #include <X11/X.h> - #include "xorg-server.h"]) + #include "xorg-server.h" + #include <X11/X.h>]) AC_CHECK_HEADERS([dri3.h], [], [], [#include <X11/Xmd.h> -- 2.16.2