From 6edf6cad2ce639b8b42ea2ec043f23d232a5cebc Mon Sep 17 00:00:00 2001
From: svenbarth <pascaldragon@googlemail.com>
Date: Sun, 24 Nov 2019 00:04:27 +0000
Subject: [PATCH] * also check for Nil symtables in tsymtable.includeoption

git-svn-id: trunk@43567 -
---
 compiler/symbase.pas | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/compiler/symbase.pas b/compiler/symbase.pas
index 7333bc4606..94e5777694 100644
--- a/compiler/symbase.pas
+++ b/compiler/symbase.pas
@@ -284,6 +284,10 @@ implementation
         while assigned(st.defowner) do
           begin
             st:=st.defowner.owner;
+            { this can happen for specializations of routines that are not yet
+              owned cause they might be thrown away again }
+            if not assigned(st) then
+              break;
             { the flag is already set, so by definition it is set in the
               owning symtables as well }
             if option in st.tableoptions then