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While running comparison tests with my new wrapper code, I noticed that the gauleg() routine in libsharp_wapper, which is used from GLSpace.weight(), is broken. The symptoms are:

• because of incorrect loop bounds, the computation will not compute the central point when nlat is an odd number. (This is not too problematic, since NIFTy currently forbids such a setting.)
• because of the incorrect usage of abs() instead of fabs(), the iteration for determining the roots of the Legendre polynomial terminates after the first iteration and therefore gives extremely inaccurate results.

I'm not sure whether the original project is still maintained, so I'm posting the warning here. Don't use this code!