Created attachment 41277 [details]
This is the source program.
The source file (triangle.c) does not give the correct output on Linux using the "Mesa Project Software Rasterizer" (as given by GL_VENDOR and GL_RENDERER)
It compiles to http://i.imgur.com/UpTSy.png
It should compile to http://imgur.com/gi1oM.png (this was compiled on: Apple's reference SW rasterizer in Mac OS X 10.6.5 build 10H574)
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