gtk2 intf: disable liboverlay by default

git-svn-id: trunk@37785 -

.gitattributes

@@ -5867,6 +5867,7 @@ lcl/interfaces/gtk2/gtk2debug.pp svneol=native#text/pascal
 lcl/interfaces/gtk2/gtk2def.pp svneol=native#text/pascal
 lcl/interfaces/gtk2/gtk2defines.inc svneol=native#text/plain
 lcl/interfaces/gtk2/gtk2devicecontext.inc svneol=native#text/pascal
+lcl/interfaces/gtk2/gtk2disableliboverlay.pas svneol=native#text/plain
 lcl/interfaces/gtk2/gtk2extra.inc svneol=native#text/pascal
 lcl/interfaces/gtk2/gtk2extra.pp svneol=native#text/pascal
 lcl/interfaces/gtk2/gtk2extrah.inc svneol=native#text/pascal

lcl/interfaces/gtk2/gtk2disableliboverlay.pas

@@ -0,0 +1,20 @@
+unit gtk2DisableLibOverlay;
+
+{$mode objfpc}{$H+}
+
+interface
+
+uses
+  Classes, SysUtils;
+
+implementation
+
+uses
+  ctypes;
+
+function setenv(name, value: PChar; replace: cint): cint; cdecl; external 'c';
+
+initialization
+  setenv('LIBOVERLAY_SCROLLBAR', '0', 1);
+end.
+

lcl/interfaces/gtk2/interfaces.pas

@@ -33,7 +33,10 @@ uses
 
 implementation
 
-uses 
+uses
+  {$IFNDEF EnableLibOverlay}
+  gtk2DisableLibOverlay,
+  {$ENDIF}
   Gtk2Int, Forms;
 
 initialization

lcl/interfaces/lcl.lpk

@@ -121,7 +121,7 @@ end;"/>
     <License Value="modified LGPL-2
 "/>
     <Version Major="1" Release="1"/>
-    <Files Count="400">
+    <Files Count="401">
       <Item1>
         <Filename Value="carbon/agl.pp"/>
         <AddToUsesPkgSection Value="False"/>
@@ -1987,6 +1987,11 @@ end;"/>
         <AddToUsesPkgSection Value="False"/>
         <UnitName Value="CustomDrawnWSMenus"/>
       </Item400>
+      <Item401>
+        <Filename Value="gtk2/gtk2disableliboverlay.pas"/>
+        <AddToUsesPkgSection Value="False"/>
+        <UnitName Value="gtk2disableliboverlay"/>
+      </Item401>
     </Files>
     <LazDoc Paths="../../docs/xml/lcl"/>
     <i18n>