On 30 January 2013 09:18, John Lilley <john.lilley@redpoint.net> wrote:

-- Our software simultaneously runs 32-bit and 64-bit versions of itself, and things are easier if the library names reflect this (e.g. inject _x64_ and _x86_ into the names).

  

from ./b2 --help

  --layout=<layout>       Determines whether to choose library names
                          and header locations such that multiple
                          versions of Boost or multiple compilers can
                          be used on the same system.

                              versioned - Names of boost binaries
                              include the Boost version number, name and
                              version of the compiler and encoded build
                              properties.  Boost headers are installed in a
                              subdirectory of <HDRDIR> whose name contains
                              the Boost version number.

                              tagged -- Names of boost binaries include the
                              encoded build properties such as variant and
                              threading, but do not including compiler name
                              and version, or Boost version. This option is
                              useful if you build several variants of Boost,
                              using the same compiler.

                              system - Binaries names do not include the
                              Boost version number or the name and version
                              number of the compiler.  Boost headers are
                              installed directly into <HDRDIR>.  This option
                              is intended for system integrators who are
                              building distribution packages.

                          The default value is 'versioned' on Windows, and
                          'system' on Unix.


Not sure about putting your own label in the name