--- a/programs/Xserver/Imakefile	2024-11-10 13:00:12.197171575 +0200
+++ b/programs/Xserver/Imakefile	2024-11-10 13:00:34.936844875 +0200
@@ -292,7 +292,7 @@
        DBMLIBS = DBMLibrary
 #endif
         SYSLIBS = $(ZLIB) MathLibrary Krb5Libraries $(DBMLIBS) $(USB) \
-		  $(PAMLIBS) $(EXTRASYSLIBS)
+		  $(PAMLIBS) $(EXTRASYSLIBS) -lXau
 #if !HasCbrt
            CBRT = mi/LibraryTargetName(cbrt)
 #endif