Re: boost breakage?

[Patrick Welche <prlw1%cam.ac.uk@localhost>]

On Mon, Apr 30, 2018 at 03:58:01PM +0200, Adam wrote:
> > Before lunch, my code compiled. I ran a pkg_rolling-replace over
> > lunch, which updated boost to 1.57.0(nb1 for headers). Now the same
> > file, no changes, fails to compile with:
> > 
> > In file included from /usr/pkg/include/boost/asio.hpp:20:
> > In file included from /usr/pkg/include/boost/asio/associated_allocator.hpp:18:
> > In file included from /usr/pkg/include/boost/asio/detail/config.hpp:26:
> > In file included from /usr/pkg/include/boost/config.hpp:61:
> > /usr/pkg/include/boost/config/detail/suffix.hpp:510:26: error: __float128 is not
> >      supported on this target
> >   __extension__ typedef __float128 float128_type;
> >                         ^
> > 
> > ?!
> > 
> > Cheers,
> > 
> > Patrick
> 
> Platform, compiler, version, please.

NetBSD-8.99.14/amd64, which uses base gcc by default, but for this
particular project:

HAVE_LLVM=yes
CLANGBASE=/usr
PROG_CXX=asio
MKMAN=no
CPPFLAGS+=-I/usr/pkg/include
CXXFLAGS+=-std=c++14
LDFLAGS+=-L/usr/pkg/lib -Wl,-R/usr/pkg/lib
LDADD+=-lboost_system
.include <bsd.prog.mk>

$ clang --version
clang version 5.0.1 (branches/release_50 r319952)
Target: x86_64--netbsd
Thread model: posix
InstalledDir: /usr/bin

Given your clue, if I comment out the first 2 lines, i.e., use gcc, the
compilation succeeds. I also see that I'm asking for trouble: something
is insisting on -lboost_system, so I will be linking a library built
by gcc to object files built by clang. The parts I am using are meant to
be "headers only". Thing is - this worked before lunch!

Cheers,

Patrick