Re: [Boost-users] problems building Boost-1.55.0 in 32b machines with c++11

Subject: Re: [Boost-users] problems building Boost-1.55.0 in 32b machines with c++11
From: Gavin Lambert (gavinl_at_[hidden])
Date: 2015-01-22 00:26:12

On 20/01/2015 22:41, Patricia Mendez Lorenzo wrote:
> Dear Boost experts,

I'm definitely not an expert, but...

> since a while I am trying to compile Boost from the source  in a 32b
> linux machine with c++11 enabled. The compiler version used is gcc4.8.1
>
> This is performed through cmake as follows:
>
> --> Configuration: bootstrap.sh --with-python=<path to /bin/python>
> --with-toolset=gcc
> --> Build:  /b2 -j4 variant=release --layout=versioned
>   --debug-configuration --toolset=gcc --user-config=<path to a
> user-config.jam>
>
> Where user-config.jam contains the following information:
> using gcc : : :  <linkflags>-m32 <compileflags>-m32 -std=gnu++0x
>
> also tested it with -std=c++11
>
> And finally installed which basically contains the same options as the
> build adding --prefix=<installation dir>
> The libraries built following this procedure does not seem to have been
> created with c++11.

If it looks like the main difference is that the -std flag was omitted, 
did you try using this instead:

using gcc : : :  <linkflags>-m32 <compileflags>-m32 <cxxflags>-std=gnu++11

If you're compiling 32bit Boost in a 32bit machine you probably don't 
need the -m32 options though, so just:

using gcc : : : <cxxflags>-std=gnu++11

should do the trick.  (Use gnu++0x instead of gnu++11 if you have an 
older version of gcc.)