Hi, On Tue, Jan 29, 2019 at 12:27 PM Jonathan Wakely <jwakely.gcc@xxxxxxxxx> wrote: > On Tue, 29 Jan 2019 at 00:23, Shlomi Fish <shlomif@xxxxxxxxx> wrote: > > > > Hi! > > > > On Tue, Jan 29, 2019 at 1:50 AM Shlomi Fish <shlomif@xxxxxxxxx> wrote: > >> > >> Hi, > >> > >> On Tue, Jan 29, 2019 at 1:28 AM Jonathan Wakely <jwakely.gcc@xxxxxxxxx> > wrote: > >>> > >>> On Mon, 28 Jan 2019 at 23:24, Shlomi Fish <shlomif@xxxxxxxxx> wrote: > >>> > > >>> > Hi all! > >>> > > >>> > I am trying to do a https://reproducible-builds.org/ setup in my C > / gnu11 > >>> > / cmake based FOSS project so I can cache valgrind results. The > project is > >>> > https://fc-solve.shlomifish.org/ and it has a git repo at > >>> > https://github.com/shlomif/fc-solve . > >>> > >>> It's not clear from your mail if you're using some or all of GCC's > >>> options that are relevant, -Wdate-time and -frandom-seed, and the env > >>> var SOURCE_DATE_EPOCH. > >> > >> > >> I am using -Wdate-time and -Werror and it also happens with export > SOURCE_DATE_EPOCH="0" now that I tried it. Should I try -frandom-seed as > well? > >> > > > > After adding a hack of putting -frandom-seed=24 in the $CFLAGS, the > problematic behaviour seems to be gone: > > > > > https://github.com/shlomif/fc-solve/commit/836c3ed85c4d1ce5c2c700b93f284e6019f0c105 > > > > Thanks! > > Great. If that fixed it presumably the differences were in unique > identifiers used for things like unnamed namespaces and lambda > expressions. > OK, thanks for your help. -- Shlomi Fish http://www.shlomifish.org/ Buddha has the Chuck Norris nature. Please reply to list if it's a mailing list post - http://shlom.in/reply .
