I noticed that the current build of picard contains a 3rd party version of bwa 0.5.9-r16, the version.txt which contains the text:
"patched by AW, and multithread samse/sampe patch applied."
I have an external collaborator who is interested in applying this patch. Could someone provide download and instructions for doing so, or for accessing this patched version of BWA? Or can I just send the bwa executable directly to the collaborator?