On Mon, 26 Nov 2018 11:50:21 +0100 Matthias Klose <d...@debian.org> wrote:
> Control: severity -1 important
> Control: tags -1 + moreinfo
>
> On 26.11.18 11:23, Gianfranco Costamagna wrote:
> > Source: gcc-8
> > Version: 8.2.0-10
> > Severity: serious
> > Affects: src:performous
> >
> > Hello, after trying to debug why src:performous was FTBFS on ppc64el, I
got this issue:
> >
> > test example reproducing the issue:
> > cat test.c++
> > #include <boost/predef.h>
> > #include <stdio.h>
> >
> > #if BOOST_OS_LINUX
> > #warning "OS LINUX DEFINED"
> > #endif
> >
> > int main()
> > {
> > printf("%d\n", BOOST_OS_WINDOWS);
> > printf("%d\n", BOOST_OS_LINUX);
> > }
> >
> >
> > apt-get install libboost-dev
> >
> > on an amd64 machine this happens:
> > $ g++ test.c++
> > test.c++:5:2: warning: #warning "OS LINUX DEFINED" [-Wcpp]
> > #warning "OS LINUX DEFINED"
> > ^~~~~~~
> >
> > $ g++ test.c++ -std=c++14
> > test.c++:5:2: warning: #warning "OS LINUX DEFINED" [-Wcpp]
> > #warning "OS LINUX DEFINED"
> > ^~~~~~~
> >
> > (everything is ok)
> >
> > on a ppc64el machine this happens instead:
> > g++ test.c++
> > test.c++:5:2: warning: #warning "OS LINUX DEFINED" [-Wcpp]
> > #warning "OS LINUX DEFINED"
> > ^~~~~~~
> >
> > g++ test.c++ -std=c++14
> > (NO WARNINGS HERE).
> >
> > this is why the package FTBFS, because that macro is not defined when
std is defined.
> >
> > Any idea?
> > (this might be a boost issue, but I can't prove it!)
>
> ... but you are sure enough to file a RC issue for a different package.
>
> > same happens with old g++-7, and with c++0x or c++11
>
