[Mesa-dev] Odd error while compiling Haiku softpipe wrapper code

[Alexander von Gluck IV]

I'm working on some wrapper code for Haiku softpipe driver, and I 
stumbled across the following strange build error when including 
sp_context.h: (Mesa 9.0)

In file included from 
../../../../generated/build_packages/mesa-9.0-x86-gcc4-2012-11-17/src/gallium/drivers/softpipe/sp_context.h:36:0,
                  from HaikuSoftPipe.cpp:14:
../../../../generated/build_packages/mesa-9.0-x86-gcc4-2012-11-17/src/gallium/auxiliary/draw/draw_vertex.h: 
In function 'size_t draw_vinfo_size(const vertex_info*)':
../../../../generated/build_packages/mesa-9.0-x86-gcc4-2012-11-17/src/gallium/auxiliary/draw/draw_vertex.h:96:11: 
error: 'a' cannot appear in a constant-expression
../../../../generated/build_packages/mesa-9.0-x86-gcc4-2012-11-17/src/gallium/auxiliary/draw/draw_vertex.h:96:11: 
error: '->' cannot appear in a constant-expression


The error seems pretty cut and dry... not sure why Gallium compiles 
though.  The only thing I can think of is that maybe Mesa throws in some 
buildflag to ignore the error or there is a missing header dependency in 
auxiliary/draw/draw_vertex.h.


Thoughts?

  -- Alex