On 2013/7/4 Samuel Thibault wrote: > Package: openturns > Version: 1.1-6 > Severity: serious > Justification: FTBFS > > Hello, > > openturns currently FTBFS on any-i386, due to a small output difference: > > --- /«PKGBUILDDIR»/lib/test/t_TrapezoidalFactory_std.expout 2013-01-03 > 14:01:36.000000000 +0000 > +++ /«PKGBUILDDIR»/obj-i486-linux-gnu/lib/test/t_TrapezoidalFactory_std.out > 2013-07-03 22:54:04.041954105 +0000 > @@ -1,8 +1,8 @@ > Distribution =class=Trapezoidal name=Trapezoidal dimension=1 a=1 > b=2.3 c=4.5 d=5 h=0.322581 > -Estimated distribution=class=Trapezoidal name=Trapezoidal dimension=1 > a=1.006 b=2.275 c=4.545 d=4.99 h=0.3198 > +Estimated distribution=class=Trapezoidal name=Trapezoidal dimension=1 > a=1.005 b=2.279 c=4.545 d=4.99 h=0.32 > Default distribution=class=Trapezoidal name=Trapezoidal dimension=1 a=-2 > b=-1 c=1 d=2 h=0.333333 > Distribution from parameters=class=Trapezoidal name=Trapezoidal dimension=1 > a=1 b=2.3 c=4.5 d=5 h=0.322581 > Trapezoidal =class=Trapezoidal name=Trapezoidal dimension=1 a=1 > b=2.3 c=4.5 d=5 h=0.322581 > -Estimated trapezoidal=class=Trapezoidal name=Trapezoidal dimension=1 a=1.006 > b=2.275 c=4.545 d=4.99 h=0.3198 > +Estimated trapezoidal=class=Trapezoidal name=Trapezoidal dimension=1 a=1.005 > b=2.279 c=4.545 d=4.99 h=0.32 > Default trapezoidal=class=Trapezoidal name=Trapezoidal dimension=1 a=-2 b=-1 > c=1 d=2 h=0.333333 > Trapezoidal from parameters=class=Trapezoidal name=Trapezoidal dimension=1 > a=1 b=2.3 c=4.5 d=5 h=0.322581 > > I've also seen that in sphinxbase, where this is due to libc 2.17 which > has small libmath fixes compared to libc 2.13.
Hello Samuel, I disabled optimization on *-i386 arches because of #714411. I checked on fischer.d.o, but I ran two builds, one with -O0 and the other one with -fno-cse-follow-jumps -fno-caller-saves -fno-guess-branch-probability, and unfortunately it is likely that I switched results, only the latter works. I could adjust test output, but I now wonder whether this is the best choice. Maybe you have some ideas why those -f flags are needed on *-i386? With GCC < 4.8, only -fno-cse-follow-jump was needed, but now we need two more flags. Denis -- To UNSUBSCRIBE, email to debian-bugs-rc-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
