Add support for MIT-SHM AttachFd request

This passes a file descriptor from the client to the server, which is
then mmap'd

Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/Xext/shmint.h b/Xext/shmint.h
index 9002ce501..db35fbbbe 100644
--- a/Xext/shmint.h
+++ b/Xext/shmint.h
@@ -61,6 +61,7 @@ typedef struct _ShmDesc {
     int shmid;
     int refcnt;
     char *addr;
+    Bool is_fd;
     Bool writable;
     unsigned long size;
 } ShmDescRec, *ShmDescPtr;