set USE_XCB define to 0 to prevent compiler complaints

nx-X11/lib/X11/Imakefile

@@ -95,6 +95,7 @@ SUBDIRS = xlibi18n
  on for now as this is the upstream default.
 */
 XCMS_DEFINES = -DXCMS
+XCB_DEFINES = -DUSE_XCB=0
 
 #include <Threads.tmpl>
 
@@ -193,7 +194,7 @@ XCURSOR_DEFINES = -DUSE_DYNAMIC_XCURSOR -DLIBXCURSOR=\"libXcursor.so.$(SOXCURSOR
         POSTLOCALELIBDEFINES = -DPOSTLOCALELIBDIR=\"$(POSTLOCALELIBDIR)\"
 #endif
         DEFINES = $(MALLOC_DEFINES) $(LIB_DEFINES) $(MISC_DEFINES)\
-			$(POSTLOCALELIBDEFINES) $(NX_INCLUDES) $(NX_DEFINES) ${XCMS_DEFINES}
+			$(POSTLOCALELIBDEFINES) $(NX_INCLUDES) $(NX_DEFINES) ${XCMS_DEFINES} ${XCB_DEFINES}
    OPEN_DEFINES = -I$(EXTINCSRC) $(K5INCL) $(K5DEFS)
  DEPEND_DEFINES = $(OPEN_DEFINES) $(TRANS_INCLUDES) $(CONN_DEFINES) $(THREADS_DEFINES) DependDefines
        AUTHOBJS = AuDispose.o AuGetBest.o AuFileName.o AuRead.o