Bug#943600: lazarus autopkgtest intermittedly fails due to EAccessViolation: Access violation

[Abou Al Montacir]

A patch was applied on 2.0.6+dfsg-2 but it seems not completely fixing this
issue.Waiting for upstream to fix it properly.
-- 
Cheers,
Abou Al Montacir

Description: lazbuild fails to build some packages during auto tests.
Author: Abou Al Montacir <abou.almonta...@sfr.fr>
Bug-Debian: http://bugs.debian.org/943600
diff --git a/components/ideintf/ideexterntoolintf.pas b/components/ideintf/ideexterntoolintf.pas
index 4654265c..fdf7549f 100644
--- a/components/ideintf/ideexterntoolintf.pas
+++ b/components/ideintf/ideexterntoolintf.pas
@@ -1229,12 +1229,14 @@ end;
 
 procedure TAbstractExternalTool.EnterCriticalSection;
 begin
-  FWorkerMessages.EnterCriticalSection;
+  if Assigned(FWorkerMessages) then
+    FWorkerMessages.EnterCriticalSection;
 end;
 
 procedure TAbstractExternalTool.LeaveCriticalSection;
 begin
-  FWorkerMessages.LeaveCriticalSection;
+  if Assigned(FWorkerMessages) then
+    FWorkerMessages.LeaveCriticalSection;
 end;
 
 procedure TAbstractExternalTool.ConsistencyCheck;

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