A clarification and a question... NTL's config system does not use a pre-built ibtool script. Rather, it builds a customized libtool by running a configure script on the host machine, so it should, in principle, be using a libtool script that is properly configured for the host machine.
The configure script itself was built on a linux machine with up-to-date autotools using the following configure.ac file: AC_INIT(ntl-libtool, 1.0) AM_INIT_AUTOMAKE([foreign]) AC_CONFIG_FILES([Makefile]) LT_INIT AC_PROG_CXX AC_PROG_CC AC_PROG_LIBTOOL AC_OUTPUT I don't remember where I got this...but it was from somebody who seemed to know what they were talking about. Maybe the logic of this configure.ac file is not right? Any thoughts on this? On Wednesday, August 28, 2019 at 9:55:38 AM UTC-4, vdelecroix wrote: > > Victor, as far as I understand the main configuration script of ntl > is the perl DoConfig script. It has nothing to do with libtool. libtool > is robust if you let it handle the configuration. It will not try to > fix a given one. > > In a libtool configure.ac script you would just have a directive > AC_CHECK_LIB for pthread. > > In short, I would suggest > > 3) Replace DoConfig by a configure.ac script > > Vincent > > Le 28/08/2019 à 15:15, Victor Shoup a écrit : > > Thanks. I guess what I'm asking for is a solution. From what you say > here, > > and what is said in the links, the problem seems to be a bug in libtool, > > not NTL. So a solution would be, either: > > 1) a patch other type of libtool workaround, or > > 2) an alternative to libtool. > > I though the whole point of libtool was to take care of all this > nonsense, > > and if it's not doing that, then > > it seems kind of pointless. > > > > On Tuesday, August 27, 2019 at 1:42:51 PM UTC-4, Antonio Rojas wrote: > >> > >> > >> > >> El martes, 27 de agosto de 2019, 16:25:12 (UTC+2), Victor Shoup > escribió: > >>> > >>> I reviewed some comments which mentioned a problem with ntl and > threads. > >>> I’m happy to fix that, but I don’t think I understand what the issue > is. > >>> Can anyone explain? Thanks. > >> > >> > >> Hi Victor, > >> IIRC I reported this to you about a year ago. The problem is that you > are > >> using libtool as a build command, which calls the compiler with the > >> -nostdlib flag, which in turn overrides the -pthread flag, so the > binaries > >> end up not being linked to libpthread. See eg. [1][2] for more info. > >> > >> [1] https://bugzilla.redhat.com/show_bug.cgi?id=661333 > >> [2] https://gcc.gnu.org/bugzilla/show_bug.cgi?id=25460 > >> > > > -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/sage-devel/30264407-95c4-4057-a7a8-5dc0ea8b6437%40googlegroups.com.
