Re: [boost] [filesystem] path.cpp fails to compile underclang/Cygwin

Subject: Re: [boost] [filesystem] path.cpp fails to compile underclang/Cygwin
From: Peter Dimov (lists_at_[hidden])
Date: 2015-01-16 18:50:13

Beman Dawes wrote:
> On Fri, Jan 16, 2015 at 4:56 PM, Peter Dimov <lists_at_[hidden]> wrote:
> > And it has -std=c++11. And clang. What's not to like? Only the fact that 
> > gcc.archive fails for some reason, which breaks all tests that want to 
> > statically link to Boost.Test.
>
> I'm having failures for gcc on Windows with the three or four Filesystem 
> test that link statically. It looks to me like Boost.Build is missing 
> dependencies, so compiles aren't run soon enough and then the archive 
> fails. So I'm wondering if the same problem is affecting Boost.Test.

Not, it's not that. The problem appears to be that gcc.jam is using

g++ -print-prog-name=ar

to obtain the path to ar, and this returns

/usr/lib/gcc/i686-pc-cygwin/4.8.3/../../../../i686-pc-cygwin/bin/ar.exe

which would work in a Cygwin shell, but does not work in a cmd.exe shell, 
from where I invoke b2.

At the moment, I have no idea how this can be fixed.