Add init hook for callbacks hash

core/alien/compiler/compiler.factor

@@ -5,7 +5,8 @@ hashtables kernel math namespaces sequences words
 inference.backend inference.dataflow system
 math.parser classes alien.arrays alien.c-types alien.structs
 alien.syntax cpu.architecture alien inspector quotations assocs
-kernel.private threads continuations.private libc combinators ;
+kernel.private threads continuations.private libc combinators
+init ;
 IN: alien.compiler
 
 ! Common protocol for alien-invoke/alien-callback/alien-indirect
@@ -301,7 +302,7 @@ M: alien-indirect generate-node
 ! this hashtable, they will all be blown away by code GC, beware
 SYMBOL: callbacks
 
-H{ } clone callbacks set-global
+[ H{ } clone callbacks set-global ] "alien.compiler" add-init-hook
 
 : register-callback ( word -- ) dup callbacks get set-at ;