replaced LinuxThreading with Unix, since it works now again with darwin

git-svn-id: trunk@8278 -

lcl/asyncprocess.pp

@@ -25,10 +25,6 @@ unit AsyncProcess;
 
 {$mode objfpc}{$H+}
 
-{$IFDEF Linux}
-  {$DEFINE UseLinuxThreading}
-{$ENDIF}
-
 interface
 
 uses
@@ -83,9 +79,7 @@ begin
     // FIONREAD -> bytes available for reading without blocking
     // FIONSPACE -> bytes available for writing without blocking
     //   does not work on all platforms (not defined on linux e.g.)
-    {$ifdef UseLinuxThreading}
     if fpioctl(Output.Handle, FIONREAD, @Result) = -1 then
-    {$ENDIF}
       Result := 0;
   end;
 end;

lcl/interfaces/gtk/gtkint.pp

@@ -50,10 +50,6 @@ interface
 
 {off $Define Disable_GC_SysColors}
 
-{$IFDEF Linux}
-  {$DEFINE UseLinuxThreading}
-{$ENDIF}
-
 {$IFDEF gtk2}
   {$IFDEF NoGdkPixbufLib}
     {$UNDEF NoGdkPixbufLib}
@@ -135,7 +131,7 @@ type
     procedure FreeStockItems; virtual;
     procedure PassCmdLineOptions; override;
    
-{$ifdef UseLinuxThreading}
+{$ifdef Unix}
     procedure InitSynchronizeSupport;
     procedure ProcessChildSignal;
     procedure PrepareSynchronize(AObject: TObject);

lcl/interfaces/gtk/gtkobject.inc

@@ -129,7 +129,7 @@ begin
 
 end;
 
-{$ifdef UseLinuxThreading}
+{$ifdef Unix}
 
 // TThread.Synchronize support
 var
@@ -237,7 +237,7 @@ begin
   ClipboardTypeAtoms[ctSecondarySelection]:=GDK_SELECTION_SECONDARY;
   ClipboardTypeAtoms[ctClipboard]:=gdk_atom_intern('CLIPBOARD',GdkFalse);
 
-{$ifdef UseLinuxThreading}
+{$ifdef Unix}
   InitSynchronizeSupport;
   InstallSignalHandler;
 {$endif}
@@ -522,7 +522,7 @@ begin
   inherited Destroy;
 end;
 
-{$ifdef UseLinuxThreading}
+{$ifdef Unix}
 
 procedure TGtkWidgetSet.PrepareSynchronize(AObject: TObject);
 begin