Andreas Enge writes:

> On Fri, Feb 20, 2015 at 05:48:04PM +0100, Ricardo Wurmus wrote:
>> +    (propagated-inputs
>> +     `(("libyaml" ,libyaml)))
>
> Is it really needed to propagate the input? The _yaml.cpython-33m.so library
> is automatically linked with libyaml-0.so.2 thanks to our ld. If it is needed,
> could you add a quick explanation?

Checked again without propagating the input and it does work.  Thanks
for catching this.

Attached are new patches for pyyaml and pybedtools (libyaml has already
been pushed).

~~ Ricardo