I just want to follow up on my compilation misadventures: I'm still not able to compile Sage with gcc-6.1 on Arch. After two weeks of not being able to review tickets, I have now rolled back my gcc and can get back to work.
I managed to compile Brial using the `CXXFLAGS= -std=gnu++98` as explaioned by Florent Hivert. The compilation then continues for a while, until it fails with Singular, apparently with similar C++11-exceptions. This time, setting `CPPFLAGS= -std=gnu++98` seems to be the right thing to do. Unfortunately, then compilation immediately fails since autoconf fails in locating gmp.h: ... [singular-3.1.7p1.p1] checking for gmp.h... no [singular-3.1.7p1.p1] checking for MP.h... no [singular-3.1.7p1.p1] checking for MPT.h... no [singular-3.1.7p1.p1] checking for factory.h... no [singular-3.1.7p1.p1] checking for factor.h... no [singular-3.1.7p1.p1] checking for omalloc.h... no [singular-3.1.7p1.p1] checking which tmp dir to use... /home/jsrn/mat/sage_coding_project/local/var/tmp/sage/build/singular-3.1.7p1.p1/src/latest/tmp [singular-3.1.7p1.p1] checking whether to configure and build omalloc... yes [singular-3.1.7p1.p1] configure: error: can not find gmp [singular-3.1.7p1.p1] Unable to configure Singular. ... I can include gmp.h in cpp files and compile them just fine with or without the -std=gnu++98 flag. So I don't understand this error. Best, Johan Florent Hivert writes: > Dear Vorlker, > > On Mon, Jun 06, 2016 at 06:18:12AM -0700, Volker Braun wrote: >> On Monday, June 6, 2016 at 5:10:36 AM UTC-4, hivert wrote: >> > >> > > C++11 appears to be a bit much for brial, but moving the -std=gnu++98 >> > > into configure before any tests are run does appear to work here and >> > > I would hope with g++6.1. >> > >> >> Which is of course not a long-term viable solution, but only a short-term >> bugfix. >> >> >> > I just wan't to report that eclib have exactly the same problem. >> >> >> Probably not, the issue in brial was that the fallback for compiling >> without unordered_map was broken. I patched that already, so there isn't >> anything left to see here. > > Sorry I wasn't clear. What I reported is that the following packages > - brial > - eclib > - ppl > - singular > Doesn't compile on arch where the standard compiler is gcc-6.1 whose default > is to use c++11. > > For those package, if the option -std=gnu++98 is not set. The compilation > fails. I didn't went all the way to check why. > > Cheers, > > Florent -- -- You received this message because you are subscribed to the Google Groups "sage-release" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/sage-release. For more options, visit https://groups.google.com/d/optout.
