StartLazarus: Fix after earlier refactoring. PackageDefs somehow requires cthreads.

ide/lazbuild.lpr

@@ -24,7 +24,10 @@ program lazbuild;
 {$mode objfpc}{$H+}
 
 uses
-  {$IFDEF unix}
+  {$IF defined(HASAMIGA)}
+  athreads,
+  {$ENDIF}
+  {$IF defined(UNIX)}
   cthreads,
   {$ENDIF}
   Classes, SysUtils, Math, CustApp, System.UITypes,

ide/startlazarus.lpi

@@ -32,12 +32,12 @@
         </Mode0>
       </Modes>
     </RunParams>
-    <RequiredPackages Count="5">
+    <RequiredPackages Count="4">
       <Item1>
-        <PackageName Value="IdeConfig"/>
+        <PackageName Value="IdePackager"/>
       </Item1>
       <Item2>
-        <PackageName Value="SynEdit"/>
+        <PackageName Value="IdeConfig"/>
       </Item2>
       <Item3>
         <PackageName Value="IDEIntf"/>
@@ -45,9 +45,6 @@
       <Item4>
         <PackageName Value="CodeTools"/>
       </Item4>
-      <Item5>
-        <PackageName Value="LCL"/>
-      </Item5>
     </RequiredPackages>
     <Units Count="2">
       <Unit0>

ide/startlazarus.lpr

@@ -31,6 +31,12 @@ program StartLazarus;
 {$mode objfpc}{$H+}
 
 uses
+  {$IF defined(HASAMIGA)}
+  athreads,
+  {$ENDIF}
+  {$IF defined(UNIX)}
+  cthreads,
+  {$ENDIF}
   redirect_stderr,
   Interfaces, SysUtils,
   Forms,