id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
12626	Building boost with Python and MPI failed (MSVC)	MailMr_S@…	Matthias Troyer	"I don't which component is not working.

I've checked out https://github.com/boostorg/boost.git and create the configuration file:
{{{
using python : 3.5 : E:/Work/Tools/python-3.5.2.3-portable32/python-3.5.2/python.exe
    : E:/Work/Tools/python-3.5.2.3-portable32/python-3.5.2/include
    : E:/Work/Tools/python-3.5.2.3-portable32/python-3.5.2/libs ;

using mpi ;
}}}

I've installed python 3.5 and Microsoft MPI v7.1 (and SDK). Now I try to build boost:
{{{
b2.exe --user-config=user-config.jam -j 4 --toolset=msvc-12.0 --build-type=complete --build-dir=build-vc12-x86 -sBZIP2_SOURCE=E:\workspace\deps\bzip2\src -sBZIP2_BINARY=bzip2 -sBZIP2_INCLUDE=E:\workspace\deps\bzip2\install\include -sBZIP2_LIBPATH=E:\workspace\deps\bzip2\install\lib\Release -sZLIB_SOURCE=E:\workspace\deps\zlib\src -sZLIB_BINARY=zlib -sZLIB_INCLUDE=E:\workspace\deps\zlib\install\include -sZLIB_LIBPATH=E:\workspace\deps\zlib\install\lib architecture=x86 address-model=32 stage --stagedir=E:\workspace\install
}}}

The result is:
{{{
Performing configuration checks

    - 32-bit                   : yes (cached)
    - arm                      : no  (cached)
    - mips1                    : no  (cached)
    - power                    : no  (cached)
    - sparc                    : no  (cached)
    - x86                      : yes (cached)
    - symlinks supported       : no  (cached)
    - junctions supported      : yes (cached)
    - hardlinks supported      : yes (cached)
    - C++11 mutex              : yes (cached)
    - Boost.Config Feature Check: cxx11_auto_declarations : yes (cached)
    - Boost.Config Feature Check: cxx11_constexpr : no  (cached)
    - Boost.Config Feature Check: cxx11_defaulted_functions : yes (cached)
    - Boost.Config Feature Check: cxx11_final : yes (cached)
    - Boost.Config Feature Check: cxx11_hdr_tuple : yes (cached)
    - Boost.Config Feature Check: cxx11_lambdas : yes (cached)
    - Boost.Config Feature Check: cxx11_noexcept : no  (cached)
    - Boost.Config Feature Check: cxx11_nullptr : yes (cached)
    - Boost.Config Feature Check: cxx11_rvalue_references : yes (cached)
    - Boost.Config Feature Check: cxx11_template_aliases : yes (cached)
    - Boost.Config Feature Check: cxx11_thread_local : no  (cached)
    - Boost.Config Feature Check: cxx11_variadic_templates : yes (cached)
    - has_icu builds           : no  (cached)
    - iconv (libc)             : no  (cached)
    - iconv (separate)         : no  (cached)
    - icu                      : no  (cached)
    - icu (lib64)              : no  (cached)
    - native-atomic-int32-supported : yes (cached)
    - message-compiler         : yes (cached)
    - native-syslog-supported  : no  (cached)
    - pthread-supports-robust-mutexes : no  (cached)
    - compiler-supports-visibility : no  (cached)
    - compiler-supports-ssse3  : yes (cached)
    - compiler-supports-avx2   : yes (cached)
    - gcc visibility           : no  (cached)
    - long double support      : yes (cached)
warning: Skipping Boost.Locale library with threading=single.
warning: Skipping Boost.Thread library with threading=single.
warning: Skipping Boost.Wave library with threading=single.
error: Name clash for '<pE:\workspace\install\lib>mpi.pyd'
error:
error: Tried to build the target twice, with property sets having
error: these incompatible properties:
error:
error:     -  <debug-symbols>on <inlining>off <library>object(file-target)@12756 <library>object(file-target)@12758 <library>object(file-target)@12760 <library>object(file-target)@12774 <library>object(file-target)@12776 <library>object(file-target)@12778 <library>object(file-target)@6809 <library>object(file-target)@6811 <library>object(file-target)@6813 <library>object(file-target)@6919 <library>object(file-target)@6921 <library>object(file-target)@6923<library>object(searched-lib-target)@12605 <optimization>off <runtime-debugging>on <variant>debug <xdll-path>/E:/workspace/src/build-vc12-x86/boost/bin.v2/libs/mpi/build/msvc-12.0/debug/threading-multi <xdll-path>/E:/workspace/src/build-vc12-x86/boost/bin.v2/libs/python/build/msvc-12.0/debug/threading-multi <xdll-path>/E:/workspace/src/build-vc12-x86/boost/bin.v2/libs/serialization/build/msvc-12.0/debug/threading-multi
error:     -  <debug-symbols>off <define>NDEBUG <inlining>full <library>object(file-target)@16291 <library>object(file-target)@16293 <library>object(file-target)@16360 <library>object(file-target)@16362 <library>object(file-target)@19297 <library>object(file-target)@19299 <library>object(file-target)@19312 <library>object(file-target)@19314 <library>object(searched-lib-target)@19202 <optimization>speed <runtime-debugging>off <variant>release <xdll-path>/E:/workspace/src/build-vc12-x86/boost/bin.v2/libs/mpi/build/msvc-12.0/release/threading-multi <xdll-path>/E:/workspace/src/build-vc12-x86/boost/bin.v2/libs/python/build/msvc-12.0/release/threading-multi <xdll-path>/E:/workspace/src/build-vc12-x86/boost/bin.v2/libs/serialization/build/msvc-12.0/release/threading-multi
error:
error: Please make sure to have consistent requirements for these
error: properties everywhere in your project, especially for install
error: targets.
}}}

I can build boost by removing ''using mpi'' or ''using python''.

using python: OK

using mpi: OK

using python + using mpi: error
"	Bugs	new	To Be Determined	mpi	Boost 1.62.0	Problem		mpi, python