Friday, 16 May 2008

xia2 in CCP4 6.1

Hi All,

xia2 should be included as a part of CCP4 6.1. There should be a beta release of this soon. If you get any problems with this please don't hesitate to get in touch as, although I have tested it, quite a few of the programs in CCP4 have changed and so may do slightly unexpected things - perhaps...

Tuesday, 13 May 2008

xia2 updates

For information, the reason I have been a little slow with the latest update for xia2 (0.3.0) is that I have been making changes to ensure that it works correctly with the forthcoming ccp4 6.1 release, in which it will be included. A lot of little things have changed which sadly resulted in a broken xia2 - however these are now fixed.

If you are waiting for any features in particular shout at me at the usual addresses or add a comment here and I will ensure they are included.

Pointless / child segmentation fault

If you have had a problem with pointless in xia2 runs giving "child segmentation fault" errors, you may have hit a problem I have just had reported. This is not the end of the world! This is for recent linux distro's for example Fedora 7.

It turns out that the version of pointless 1.2.16 I included in the xia2 bundle for linux is not the same as the one that Phil now has on his web page - so the fix is pretty straightforward. Download the latest pointless from the MRC in Cambridge:

and copy it to


You should then be sorted. It may be worth checking that you have execute permissions, and if not adding them with "chmod a+x pointless-1.2.16" since sometimes ftp removes these...