<br clear="all"><span class="Apple-style-span" style="font-size: xx-large;">Hi All:</span>
<div><span class="Apple-style-span" style="font-size: xx-large;">       when I compile vtk5.6 in Mac Os X 10.5.7 with(Intel x86), I get the following Errors:</span></div><div><span class="Apple-style-span" style="font-size: large;">       </span><span class="Apple-style-span" style="font-family: Courier; font-style: italic; "><span class="Apple-style-span" style="font-size: large;">Undefined symbols:</span></span></div>

<p style="margin: 0.0px 0.0px 0.0px 32.0px; text-indent: -32.0px; font: 11.0px Courier"><i><span class="Apple-style-span" style="font-size: large;">  &quot;vtkXOpenGLRenderWindow::New()&quot;, referenced from:</span></i></p>

<p style="margin: 0.0px 0.0px 0.0px 32.0px; text-indent: -32.0px; font: 11.0px Courier"><i><span class="Apple-style-span" style="font-size: large;">      vtkGraphicsFactory::CreateInstance(char const*)in vtkGraphicsFactory.o</span></i></p>

<p style="margin: 0.0px 0.0px 0.0px 32.0px; text-indent: -32.0px; font: 11.0px Courier"><i><span class="Apple-style-span" style="font-size: large;">  &quot;vtkXRenderWindowInteractor::New()&quot;, referenced from:</span></i></p>

<p style="margin: 0.0px 0.0px 0.0px 32.0px; text-indent: -32.0px; font: 11.0px Courier"><i><span class="Apple-style-span" style="font-size: large;">      vtkGraphicsFactory::CreateInstance(char const*)in vtkGraphicsFactory.o</span></i></p>

<p style="margin: 0.0px 0.0px 0.0px 32.0px; text-indent: -32.0px; font: 11.0px Courier"><i><span class="Apple-style-span" style="font-size: large;">ld: symbol(s) not found</span></i></p>
<p style="margin: 0.0px 0.0px 0.0px 32.0px; text-indent: -32.0px; font: 11.0px Courier"><i><span class="Apple-style-span" style="font-size: large;">collect2: ld returned 1 exit status</span></i></p>
<p style="margin: 0.0px 0.0px 0.0px 32.0px; text-indent: -32.0px; font: 11.0px Courier"><i><span class="Apple-tab-span" style="white-space:pre"><span class="Apple-style-span" style="font-size: large;">                </span></span><span class="Apple-style-span" style="font-size: large;">  &quot;vtkXOpenGLRenderWindow::New()&quot;, referenced from:</span></i></p>

<p style="margin: 0.0px 0.0px 0.0px 32.0px; text-indent: -32.0px; font: 11.0px Courier"><i><span class="Apple-tab-span" style="white-space:pre"><span class="Apple-style-span" style="font-size: large;">                </span></span><span class="Apple-style-span" style="font-size: large;">      vtkGraphicsFactory::CreateInstance(char const*)in vtkGraphicsFactory.o</span></i></p>

<p style="margin: 0.0px 0.0px 0.0px 32.0px; text-indent: -32.0px; font: 11.0px Courier"><i><span class="Apple-tab-span" style="white-space:pre"><span class="Apple-style-span" style="font-size: large;">                </span></span><span class="Apple-style-span" style="font-size: large;">  &quot;vtkXRenderWindowInteractor::New()&quot;, referenced from:</span></i></p>

<p style="margin: 0.0px 0.0px 0.0px 32.0px; text-indent: -32.0px; font: 11.0px Courier"><i><span class="Apple-tab-span" style="white-space:pre"><span class="Apple-style-span" style="font-size: large;">                </span></span><span class="Apple-style-span" style="font-size: large;">      vtkGraphicsFactory::CreateInstance(char const*)in vtkGraphicsFactory.o</span></i></p>

<p style="margin: 0.0px 0.0px 0.0px 32.0px; text-indent: -32.0px; font: 11.0px Courier"><i><span class="Apple-tab-span" style="white-space:pre"><span class="Apple-style-span" style="font-size: large;">                </span></span><span class="Apple-style-span" style="font-size: large;">ld: symbol(s) not found</span></i></p>

<p style="margin: 0.0px 0.0px 0.0px 32.0px; text-indent: -32.0px; font: 11.0px Courier"><i><span class="Apple-tab-span" style="white-space:pre"><span class="Apple-style-span" style="font-size: large;">                </span></span><span class="Apple-style-span" style="font-size: large;">collect2: ld returned 1 exit status.</span></i></p>
<p style="margin: 0.0px 0.0px 0.0px 32.0px; text-indent: -32.0px; font: 11.0px Courier"><span class="Apple-style-span" style="font-size: 18px; font-style: italic;"><br></span></p><p style="margin: 0.0px 0.0px 0.0px 32.0px; text-indent: -32.0px; font: 11.0px Courier">
<span class="Apple-style-span" style="font-size: 18px; font-style: italic;">   </span><span class="Apple-style-span" style="font-size: 18px; ">I use CMake 2.8 to generage makefile, I have tried various compilers such as gcc,gcc-4.2,g++,g++-4.2,c++,c++-4.2, none success. </span></p>
<p style="margin: 0.0px 0.0px 0.0px 32.0px; text-indent: -32.0px; font: 11.0px Courier"><span class="Apple-style-span" style="font-size: 18px; ">   </span></p><p style="margin: 0.0px 0.0px 0.0px 32.0px; text-indent: -32.0px; font: 11.0px Courier">
<span class="Apple-style-span" style="font-size: 18px; ">   Any one can give me some advice? Thanks in advance.</span></p><p style="margin: 0.0px 0.0px 0.0px 32.0px; text-indent: -32.0px; font: 11.0px Courier"><span class="Apple-style-span" style="font-size: 18px; ">   Best regards!</span></p>
<p style="margin: 0.0px 0.0px 0.0px 32.0px; text-indent: -32.0px; font: 11.0px Courier"><span class="Apple-style-span" style="font-size: 18px; ">   </span></p><p style="margin: 0.0px 0.0px 0.0px 32.0px; text-indent: -32.0px; font: 11.0px Courier">
<span class="Apple-style-span" style="font-size: 18px; ">   Siyan Liu. </span></p><div>       </div>