Jan Synáček <jan.syna...@gmail.com> skribis: > On Fri, Nov 20, 2015 at 2:51 PM, Ludovic Courtès <l...@gnu.org> wrote: >> Jan Synáček <jan.syna...@gmail.com> skribis: >> >>> On Sat, Nov 14, 2015 at 12:40 PM, Ludovic Courtès <l...@gnu.org> wrote:
[...] >>>> It would be nice to see if this systematically fails. If it is >>>> non-deterministic, we should build it with --keep-failed until it fails >>>> (removing successful builds with ‘guix gc -d’), collect useful info from >>>> the build tree, and debug. [...] >> I noticed that libarchive uses ‘readdir’ calls as-is, without sorting >> directory entries afterwards. Thus, the order of directory entries is >> effectively non-deterministic and may change depending on the phase of >> the moon. >> >> This has been reported at: >> >> https://github.com/libarchive/libarchive/issues/602 >> >> Could you add the patch that’s given at that URL to the ‘patches’ field >> or libarchive’s ‘origin’ form and see if the problem shows up again, >> preferably building several times in a row? > > I built it once and it passed (note that it failed *everytime* I > wanted to build it). So this patch appears to solve the issue? > Maybe a dumb question, but how do I force a rebuild of an already > built package?:) You can’t rebuild packages because build processes are assumed to be deterministic. However, you can delete a build result with ‘gc -d’, as mentioned above, and rebuild it afterwards. HTH, Ludo’.
