Re: [Boost-users] How to build 32-bit Boost libraries on a 64-bit Linux machine using bjam?

From: Vladimir Prus (vladimir_at_[hidden])
Date: 2008-07-12 04:41:52

Gehua Yang wrote:

> Hi Folks,
> 
> I am using Boost.Serialization and Boost.Thread in my project. Because
> current Boost release had problems with GCC 4.3, I had to build my own Boost
> libraries from a svn checkout. Fortunately, with the help from "Getting
> Started Guide", I accomplished the mission with ease. The commands I used
> are:
> bjam --build-dir=/tmp/build-boost --toolset=gcc --build-type="release
> <threading>multi <link>static <runtime-link>static" stage
> bjam --build-dir=/tmp/build-boost --toolset=gcc --build-type="release
> <threading>multi <link>static <runtime-link>static"
> --prefix=/software/boost-20080710 install
> 
> The above produced 64-bit libraries. My question is, how I can build 32-bit
> Boost libraries on the same machine?  Does it take command line variables,
> such as CXXFLAGS=-m32?

There are two approaches:

1. bjam <.....> address-model=32

This might require SVN HEAD.

2. bjam <.....> cxxflags=-m32

Note this will affect C++ compilation only, add "cflags=-m32" to affect C.

- Volodya