On 01/28/16 11:18, François Bissey wrote:
I am asking because I got a report about a singular/ntl
interaction with gcc-5.3.0 in sage-on-gentoo.
Basically ntl 9.6.2 switches on c++11 support and then
g++ refuse to compile bits of singular calling ntl without
c++11 being enabled. Of course singular's configure
scripts [yes there are several] are to old to even consider
c++11.
It could be due to me allowing user to turn on threads in ntl
which we don't do so far in vanilla sage.
https://bugs.gentoo.org/show_bug.cgi?id=572626
Turns out it is due to configuring ntl with "NTL_THREAD_BOOST=on"
which uses c++11 threads. This isn't done in vanilla sage so no one
should have come across it yet.
It breaks the default building of flint as well, presumably it
would break building of sage.
Francois
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