IdeConfig: Check that package does not include LCL

ide/packages/ideconfig/ideconfig.lpk

@@ -127,6 +127,10 @@ Files in this package are for the main configuration of the IDE."/>
         <Filename Value="include\linux\lazconf.inc"/>
         <Type Value="Include"/>
       </Item>
+      <Item>
+        <Filename Value="ideconfigpcktest.pas"/>
+        <UnitName Value="IdeConfigPckTest"/>
+      </Item>
     </Files>
     <i18n>
       <EnableI18N Value="True"/>

ide/packages/ideconfig/ideconfig.pas

@@ -12,7 +12,7 @@ uses
   EditorToolBarOptions, EnvironmentOpts, etFPCMsgFilePool, etMakeMsgParser, FppkgHelper, 
   IDECmdLine, IdeConfStrConsts, IDEGuiCmdLine, IDEOptionDefs, IDEProcs, IdeXmlConfigProcs, 
   LazConf, ModeMatrixOpts, ParsedCompilerOpts, ProjPackCommon, RecentListProcs, SearchPathProcs, 
-  ToolBarOptionsBase, TransferMacros, LazarusPackageIntf;
+  ToolBarOptionsBase, TransferMacros, IdeConfigPckTest, LazarusPackageIntf;
 
 implementation
 

ide/packages/ideconfig/ideconfigpcktest.pas

@@ -0,0 +1,17 @@
+unit IdeConfigPckTest;
+
+(*
+  The package IdeConfig can be used by command line tools (like LazBuild).
+  Therefore it should not depend on the LCL or GUI related packages
+*)
+
+{$IFDEF LCL}
+  {$error The package IdeConfig must not depend on the LCL}
+{$ENDIF}
+
+interface
+
+implementation
+
+end.
+