You may also ask your sysadmins to install yasm (it's an assembler for x86_64)
(cf e.g. https://centos.pkgs.org/7/epel-x86_64/yasm-1.2.0-4.el7.x86_64.rpm.html)

On Mon, Mar 18, 2019 at 9:18 PM Dima Pasechnik <dimp...@gmail.com> wrote:
>
> On Mon, Mar 18, 2019 at 9:10 PM 'Florian Hanisch' via sage-support
> <sage-support@googlegroups.com> wrote:
> >
> > Thanks, my system clock matches the local time quite accurately (including 
> > the year), I just checked it again. I can / could not make any sense of 
> > this comment in the log that you quoted.
>
> This is a quite standard test in configure files generated by GNU autotools.
>
> I don't find much relevant on this on the net, except perhaps
> https://serverfault.com/questions/136186/what-steps-can-you-take-to-ensure-sane-build-environments-when-compiling-softwar
>
> Do you by any chance have "ls" aliased to something ?
>
>
> >
> >
> > On Monday, March 18, 2019 at 8:56:31 PM UTC, Dima Pasechnik wrote:
> >>
> >> In the log you see
> >>
> >> checking whether build environment is sane... configure: error: newly
> >> created file is older than distributed files!
> >> Check your system clock
> >>
> >> So it seems that your system clock is off by a considerable interval
> >> (probably, years!)
> >> This might be a problem...
> >>
> >> Does the output of "date" in the terminal match the wall clock in any way?
> >>
> >>
> >> On Mon, Mar 18, 2019 at 8:37 PM 'Florian Hanisch' via sage-support
> >> <sage-s...@googlegroups.com> wrote:
> >> >
> >> > Dear all,
> >> >
> >> > this might be a question for the developers groups. But before joining 
> >> > the dev-group just to be able to post one question, I decided to ask 
> >> > here first.
> >> >
> >> > I am trying to compile sage 8.6 on Centos 7 (intel core i5, 8GB Ram) but 
> >> > the process stops with the following message
> >> >
> >> > > Error building Sage.
> >> > >
> >> > > The following package(s) may have failed to build (not necessarily
> >> > > during this run of 'make all-start'):
> >> > >
> >> > > * package: yasm-1.3.0.p0
> >> > >   log file: 
> >> > > /apps/srv01/pmt/pmtfh/sage/sage-8.6/logs/pkgs/yasm-1.3.0.p0.log
> >> > >   build directory: 
> >> > > /apps/srv01/pmt/pmtfh/sage/sage-8.6/local/var/tmp/sage/build/yasm-1.3.0.p0
> >> >
> >> > I attached the log-file mentioned above to my post. I know that the 
> >> > package perl-ExtUtils-MakeMaker is not installed on my computer
> >> > (unfortunately, I am not root on the computer I am using). Is this a 
> >> > possible reason for the problem ? Or do I have to look for a "deeper" 
> >> > problem ?
> >> >
> >> > Thanks,
> >> >
> >> > Florian
> >> >
> >> > P.S. If this question should be posted at sage-devel, plaese let me 
> >> > know, I will subscribe and post then.
> >> >
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