{$IF DEFINED(USE_NANOGL) OR DEFINED(USE_NOGL)}
  {$DEFINE USE_GLES1}
{$ENDIF}

{$IF DEFINED(USE_GLES1) OR DEFINED(USE_GLSTUB) OR DEFINED(USE_GLALSW)}
  {$IFNDEF USE_NANOGL}
    {$DEFINE USE_NOGL}
  {$ENDIF}
{$ENDIF}

{$IF DEFINED(USE_NANOGL) and DEFINED(USE_NOGL)}
  {$ERROR you can use only one OpenGL ES wrapper}
{$ENDIF}

{$IF DEFINED(USE_NANOGL)}
  nanoGL in '../lib/nanogl/nanoGL.pas',
{$ELSEIF DEFINED(USE_NOGL) }
  noGL in '../nogl/noGL.pas',
{$ELSE}
  GL, GLExt,
{$ENDIF}