2.0 GL_LINE_SMOOTH can't work

in DrawPrimitivesTest.cpp

CHECK_GL_ERROR_DEBUG();

// draw a simple line
// The default state is:
// Line Width: 1
// color: 255,255,255,255 (white, non-transparent)
* // Anti-Aliased
// glEnable(GL_LINE_SMOOTH);*
ccDrawLine( VisibleRect::leftBottom(), VisibleRect::rightTop() );

I found the glEnable(GL_LINE_SMOOTH) is commented , there are other ways to replace???

did someone help ???

I met the same question, did you solved?