Hi, > While investigating ultracopier's lack of build reproducibility, I found > out that rcc encodes the timestamp of the files the QRC file being > compiled references
Indeed, we've been tracking this for a while in the Reproducible Builds project [0] but, without a patch, we did not wish to bother you with a bug. :) It is affecting at least 4 or 5 other packages. I had previously tracked it down to [1]. Regarding the solution, I think I would actually prefer to see something consuming SOURCE_DATE_EPOCH[1] rather than adding an option to set a specific timestamp. [0] https://reproducible-builds.org/ [1] https://sources.debian.org/src/qtbase-opensource-src/5.9.2+dfsg-12/src/tools/rcc/rcc.cpp/#L207-L212 [2] https://reproducible-builds.org/specs/source-date-epoch/ Best wishes, -- ,''`. : :' : Chris Lamb `. `'` la...@debian.org / chris-lamb.co.uk `-