On 31/03/16 02:34, Charles Plessy wrote: > Le Wed, Mar 30, 2016 at 01:36:58PM +0200, Steffen Möller a écrit : >> I had started this friendly and constructive thread on Debian Devel on >> link time optimisation >> >> https://lists.debian.org/debian-devel/2016/03/msg00399.html >> >> and my personal consensus is that we should possibly start with the most >> rewarding scientific packages of ours to see how it goes. What do you >> think? > Hi Steffen and everybody, > > here is a quick side comment, sorry for not having the time to participate > to that thread. > > Related to optimisation, we systematically override -O3 to -O2. Probably in > most of the cases the upstream authors never benchmarked the difference > anyway, > but in remaining cases, aren't we making the programs in our packages slower > only for the sake of building everything with the same flags and avoiding > compilation errors on architectures where nobody ever reported that these > programs in particular have been used ? > Hi Charles,
I presume we kind of inadvertently do so by using the debhelper tools that may set other options than upstream had in mind. Er, yes, somehow this feels unfortunate, indeed. I would prefer to give this some extra thought in another thread, though. Many thanks and greetings Steffen