On Mon, Dec 02, 2013 at 11:20:20AM -0800, Roland Haas wrote: > * suggestion to not include that tarball in ExternalLibraries, instead > download in configure.sh script of thorn only if needed. Not yet fully > agreed on whether we want this or not.
This can sometimes be difficult to make work. In some cases one has to build on a compute node (e.g. when some libraries are only installed there, e.g. GPU-related libraries - this is currently the case for instance on supermike). However, compute nodes might not be able to make connections directly to the Internet, or there might be policies against it. I would rather like a solution that downloads the tarball together with the thorn. This is primarily a problem for large libraries though, especially when a corresponding system library exists and is used. It doesn't only increase the size of a checkout, it also increases the size of the executable (when using Formaline). We could exclude external libraries from Formaline (at least the dist subdirectory) - system libraries are not included as well after all. This would leave us with the problem of the large checkout. I don't think the download is so much of a problem, but the disk space might be. As long as it is a tarball it should at least not be a huge inode problem, and can easily be compressed. Frank
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