[C++-sig] EXTERNAL: Building Boost Python problem

Davidson, Josh josh.davidson at lmco.com
Wed Dec 21 17:58:07 CET 2011 

Whoops, just realized you're using Python 2.7, so my def file won't help you.  You need to get a x64 def file for your version of Python (there are ways to generate these, google) and run it against dlltool (see notes in previous response) to generate a libpython27.a

-----Original Message-----
From: Davidson, Josh 
Sent: Wednesday, December 21, 2011 9:53 AM
To: cplusplus-sig at python.org
Subject: RE: EXTERNAL: [C++-sig] Building Boost Python problem

I'm attaching my notes below.  I will point out that while the directions reference 1.48, I've actually had problems with 1.48 and MinGW-W64.  Specifically, I'm having problems with bjam building all libraries at once.  Building individually appears to work, but I haven't bothered trying to build each one on its own yet.   I've inquired on boost-build, but haven't heard anything back.  Personally, I would recommend 1.47.  If you'd like the def file referenced in the instructions, shoot me a personal email and I'll forward it to you.  Keep in mind that you *cannot* use a 32-bit def file if you are using 64-bit Python.  I will also forewarn you there are other issues with x64 Python and MinGW-W64 if you plan on building extensions.  Take a look here: http://bugs.python.org/issue4709


---Building Boost for MinGW-----

h1. Building Boost

Building Boost for MinGw is the opposite of fun.  Here are some notes to get you through the misery.


h2. x64 Windows

*Directories*
* C:\TEMP\boost_1_48_0 - Where Boost source code was extracted
* c:\mingw64-i686-20110207 - 64-bit MinGw
* C:\Python26 - 64-bit Python installation (2.6.6)
* C:\TEMP\boost_build - Directory for storing build output

*Steps*
# Enter C:\TEMP\boost_1_48_0\tools\build\v2\engine
# C:\TEMP\boost_1_48_0\tools\build\v2\engine>build.bat mingw --toolset-root=c:\mingw64-i686-20110207
# Copy bin.<arch>/* to <mingw_root>/bin
# Change into C:\TEMP\boost_1_48_0
# C:\TEMP\boost_1_48_0>bootstrap.bat mingw --toolset-root=c:\mingw64-i686-20110207 --with-python-root=C:\Python26 # Make a temporary boost build directory, C:\TEMP\boost_build # Work through the following steps to workaround a bug that has been around for years, but seemingly will never get fixed:
<pre>1.	Open tools/build/v2/tools/python.jam
2.	There, locate the following code:
if [ version.check-jam-version 3 1 17 ] || ( [ os.name ] != NT ) {
    # Prior to version 3.1.17 Boost Jam's SHELL command did not support
    # quoted commands correctly on Windows. This means that on that
    # platform we do not support using a Python command interpreter
    # executable whose path contains a space character.
    python-cmd = \"$(python-cmd)\" ;
}
3.	Remove that code block completely. </pre>
# Grab attachment:python26.def
# Copy c:\windows\System32\python26.dll to the same location as attachment:python26.def # Execute: @dlltool --dllname python26.dll --def python26.def --output-lib libpython26.a@ # Copy libpython26.a to C:\Python26\libs # pre> bjam.exe --toolset=gcc --build-type=complete --build-dir=C:\TEMP\boost_build\build --stagedir=C:\TEMP\boost_build\stage -- address-model=64 define=BOOST_USE_WINDOWS_H threadapi=win32 target-os=windows stage </pre> # Copy all files under C:\temp\boost_build\stage\lib to c:\mingw64-i686-20110207\x86_64-w64-mingw32\lib64
# Copy C:\TEMP\boost_1_48_0\boost to c:\mingw64-i686-20110207\x86_64-w64-mingw32\inlcude

-----Original Message-----
From: cplusplus-sig-bounces+josh.davidson=lmco.com at python.org [mailto:cplusplus-sig-bounces+josh.davidson=lmco.com at python.org] On Behalf Of hbd666
Sent: Wednesday, December 21, 2011 2:24 AM
To: cplusplus-sig at python.org
Subject: EXTERNAL: [C++-sig] Building Boost Python problem

Hi I hope someone can help me out...
The object is to build boost python (boost-1.4.8, python 2.7 32bit, windows 7 64bit, mingw).
I've been trying to fix this for a good 8 hours but can't figure it out.

bjam --with-python --build-type=complete --toolset=gcc stage

Looking at the resulting output below, I see the problem is probably that bjam can't find python27.lib.  I just don't see how that is possible because it finds python.exe in C:\Python27 and indeed python27.lib exists in the C:\Python27\libs directory.

Resulting output.....

Component configuration:

     - chrono                   : not building
     - date_time                : not building
     - exception                : not building
     - filesystem               : not building
     - graph                    : not building
     - graph_parallel           : not building
     - iostreams                : not building
     - locale                   : not building
     - math                     : not building
     - mpi                      : not building
     - program_options          : not building
     - python                   : building
     - random                   : not building
     - regex                    : not building
     - serialization            : not building
     - signals                  : not building
     - system                   : not building
     - test                     : not building
     - thread                   : not building
     - timer                    : not building
     - wave                     : not building

...patience...
...patience...
...found 1932 targets...
...updating 16 targets...
gcc.link.dll
bin.v2\libs\python\build\gcc-mingw-4.6.1\release\threading-multi\libboost_python-mgw46-mt-1_48.dll.a
Creating library file:  
bin.v2\libs\python\build\gcc-mingw-4.6.1\release\threading-multi\libboost_python-mgw46-mt-1_48.dll.abin.v2\libs\python\build\gcc-mingw-4.6.1\release\threading-multi\module.o:module.cpp:(.text+0x165):  
undefined reference to `_imp__Py_InitModule4 '
collect2: ld returned 1 exit status

     "g++" -L"C:\Python27\libs" -Wl,-R -Wl,"C:\Python27" -Wl,-R -Wl,"C:\Python27\libs"  
"-Wl,--out-implib,bin.v2\libs\python\build\gcc-mingw-4.6.1\release\threading-multi\libboost_python-mgw46-mt-1_48.dll.a"  
-o  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\release\threading-multi\libboost_python-mgw46-mt-1_48.dll"   
-shared -Wl,--start-group
"bin.v2\libs\python\build\gcc-mingw-4.6.1\release\threading-multi\numeric.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\release\threading-multi\list.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\release\threading-multi\long.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\release\threading-multi\dict.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\release\threading-multi\tuple.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\release\threading-multi\str.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\release\threading-multi\slice.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\release\threading-multi\converter\from_python.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\release\threading-multi\converter\registry.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\release\threading-multi\converter\type_id.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\release\threading-multi\object\enum.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\release\threading-multi\object\class.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\release\threading-multi\object\function.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\release\threading-multi\object\inheritance.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\release\threading-multi\object\life_support.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\release\threading-multi\object\pickle_support.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\release\threading-multi\errors.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\release\threading-multi\module.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\release\threading-multi\converter\builtin_converters.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\release\threading-multi\converter\arg_to_python_base.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\release\threading-multi\object\iterator.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\release\threading-multi\object\stl_iterator.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\release\threading-multi\object_protocol.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\release\threading-multi\object_operators.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\release\threading-multi\wrapper.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\release\threading-multi\import.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\release\threading-multi\exec.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\release\threading-multi\object\function_doc_signature.o"   
-Wl,-Bstatic  -Wl,-Bdynamic -lpython27 -Wl,--end-group -mthreads

...failed gcc.link.dll
bin.v2\libs\python\build\gcc-mingw-4.6.1\release\threading-multi\libboost_python-mgw46-mt-1_48.dll.a
bin.v2\libs\python\build\gcc-mingw-4.6.1\release\threading-multi\libboost_python-mgw46-mt-1_48.dll...
...removing
bin.v2\libs\python\build\gcc-mingw-4.6.1\release\threading-multi\libboost_python-mgw46-mt-1_48.dll.a
...skipped <pstage\lib>libboost_python-mgw46-mt-1_48.dll.a for lack of <pbin.v2\libs\python\build\gcc-mingw-4.6.1\release\threading-multi>libboost_python-mgw46-mt-1_48.dll.a...
...skipped <pstage\lib>libboost_python-mgw46-mt-1_48.dll for lack of <pbin.v2\libs\python\build\gcc-mingw-4.6.1\release\threading-multi>libboost_python-mgw46-mt-1_48.dll...
gcc.link.dll
bin.v2\libs\python\build\gcc-mingw-4.6.1\debug\libboost_python-mgw46-d-1_48.dll.a
Creating library file:  
bin.v2\libs\python\build\gcc-mingw-4.6.1\debug\libboost_python-mgw46-d-1_48.dll.abin.v2\libs\python\build\gcc-mingw-4.6.1\debug\module.o:  
In function `ZN5boost6python6detail11init_moduleEPKcPFvvE':
D:\boost_1_48_0\libs\python\example\quickstart/../../../../libs/python/src/module.cpp:59:  
undefined reference to `_imp__Py_InitModule4 '
collect2: ld returned 1 exit status

     "g++" -L"C:\Python27\libs" -Wl,-R -Wl,"C:\Python27" -Wl,-R -Wl,"C:\Python27\libs"  
"-Wl,--out-implib,bin.v2\libs\python\build\gcc-mingw-4.6.1\debug\libboost_python-mgw46-d-1_48.dll.a"  
-o  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\debug\libboost_python-mgw46-d-1_48.dll"   
-shared -Wl,--start-group
"bin.v2\libs\python\build\gcc-mingw-4.6.1\debug\numeric.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\debug\list.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\debug\long.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\debug\dict.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\debug\tuple.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\debug\str.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\debug\slice.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\debug\converter\from_python.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\debug\converter\registry.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\debug\converter\type_id.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\debug\object\enum.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\debug\object\class.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\debug\object\function.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\debug\object\inheritance.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\debug\object\life_support.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\debug\object\pickle_support.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\debug\errors.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\debug\module.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\debug\converter\builtin_converters.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\debug\converter\arg_to_python_base.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\debug\object\iterator.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\debug\object\stl_iterator.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\debug\object_protocol.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\debug\object_operators.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\debug\wrapper.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\debug\import.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\debug\exec.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\debug\object\function_doc_signature.o"   
-Wl,-Bstatic  -Wl,-Bdynamic -lpython27 -Wl,--end-group -g

...failed gcc.link.dll
bin.v2\libs\python\build\gcc-mingw-4.6.1\debug\libboost_python-mgw46-d-1_48.dll.a
bin.v2\libs\python\build\gcc-mingw-4.6.1\debug\libboost_python-mgw46-d-1_48.dll...
...removing
bin.v2\libs\python\build\gcc-mingw-4.6.1\debug\libboost_python-mgw46-d-1_48.dll.a
...skipped <pstage\lib>libboost_python-mgw46-d-1_48.dll.a for lack of <pbin.v2\libs\python\build\gcc-mingw-4.6.1\debug>libboost_python-mgw46-d-1_48.dll.a...
...skipped <pstage\lib>libboost_python-mgw46-d-1_48.dll for lack of <pbin.v2\libs\python\build\gcc-mingw-4.6.1\debug>libboost_python-mgw46-d-1_48.dll...
gcc.link.dll
bin.v2\libs\python\build\gcc-mingw-4.6.1\release\libboost_python-mgw46-1_48.dll.a
Creating library file:  
bin.v2\libs\python\build\gcc-mingw-4.6.1\release\libboost_python-mgw46-1_48.dll.abin.v2\libs\python\build\gcc-mingw-4.6.1\release\module.o:module.cpp:(.text+0x165):  
undefined reference to `_imp__Py_InitModule4 '
collect2: ld returned 1 exit status

     "g++" -L"C:\Python27\libs" -Wl,-R -Wl,"C:\Python27" -Wl,-R -Wl,"C:\Python27\libs"  
"-Wl,--out-implib,bin.v2\libs\python\build\gcc-mingw-4.6.1\release\libboost_python-mgw46-1_48.dll.a"  
-o  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\release\libboost_python-mgw46-1_48.dll"   
-shared -Wl,--start-group
"bin.v2\libs\python\build\gcc-mingw-4.6.1\release\numeric.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\release\list.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\release\long.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\release\dict.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\release\tuple.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\release\str.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\release\slice.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\release\converter\from_python.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\release\converter\registry.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\release\converter\type_id.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\release\object\enum.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\release\object\class.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\release\object\function.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\release\object\inheritance.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\release\object\life_support.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\release\object\pickle_support.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\release\errors.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\release\module.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\release\converter\builtin_converters.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\release\converter\arg_to_python_base.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\release\object\iterator.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\release\object\stl_iterator.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\release\object_protocol.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\release\object_operators.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\release\wrapper.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\release\import.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\release\exec.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\release\object\function_doc_signature.o"   
-Wl,-Bstatic  -Wl,-Bdynamic -lpython27 -Wl,--end-group

...failed gcc.link.dll
bin.v2\libs\python\build\gcc-mingw-4.6.1\release\libboost_python-mgw46-1_48.dll.a
bin.v2\libs\python\build\gcc-mingw-4.6.1\release\libboost_python-mgw46-1_48.dll...
...removing
bin.v2\libs\python\build\gcc-mingw-4.6.1\release\libboost_python-mgw46-1_48.dll.a
...skipped <pstage\lib>libboost_python-mgw46-1_48.dll.a for lack of <pbin.v2\libs\python\build\gcc-mingw-4.6.1\release>libboost_python-mgw46-1_48.dll.a...
...skipped <pstage\lib>libboost_python-mgw46-1_48.dll for lack of <pbin.v2\libs\python\build\gcc-mingw-4.6.1\release>libboost_python-mgw46-1_48.dll...
gcc.link.dll
bin.v2\libs\python\build\gcc-mingw-4.6.1\debug\threading-multi\libboost_python-mgw46-mt-d-1_48.dll.a
Creating library file:  
bin.v2\libs\python\build\gcc-mingw-4.6.1\debug\threading-multi\libboost_python-mgw46-mt-d-1_48.dll.abin.v2\libs\python\build\gcc-mingw-4.6.1\debug\threading-multi\module.o:  
In function `ZN5boost6python6detail11init_moduleEPKcPFvvE':
D:\boost_1_48_0/libs/python/src/module.cpp:59: undefined reference to
`_imp__Py_InitModule4
'
collect2: ld returned 1 exit status

     "g++" -L"C:\Python27\libs" -Wl,-R -Wl,"C:\Python27" -Wl,-R -Wl,"C:\Python27\libs"  
"-Wl,--out-implib,bin.v2\libs\python\build\gcc-mingw-4.6.1\debug\threading-multi\libboost_python-mgw46-mt-d-1_48.dll.a"  
-o  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\debug\threading-multi\libboost_python-mgw46-mt-d-1_48.dll"   
-shared -Wl,--start-group
"bin.v2\libs\python\build\gcc-mingw-4.6.1\debug\threading-multi\numeric.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\debug\threading-multi\list.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\debug\threading-multi\long.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\debug\threading-multi\dict.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\debug\threading-multi\tuple.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\debug\threading-multi\str.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\debug\threading-multi\slice.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\debug\threading-multi\converter\from_python.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\debug\threading-multi\converter\registry.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\debug\threading-multi\converter\type_id.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\debug\threading-multi\object\enum.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\debug\threading-multi\object\class.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\debug\threading-multi\object\function.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\debug\threading-multi\object\inheritance.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\debug\threading-multi\object\life_support.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\debug\threading-multi\object\pickle_support.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\debug\threading-multi\errors.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\debug\threading-multi\module.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\debug\threading-multi\converter\builtin_converters.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\debug\threading-multi\converter\arg_to_python_base.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\debug\threading-multi\object\iterator.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\debug\threading-multi\object\stl_iterator.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\debug\threading-multi\object_protocol.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\debug\threading-multi\object_operators.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\debug\threading-multi\wrapper.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\debug\threading-multi\import.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\debug\threading-multi\exec.o"  
"bin.v2\libs\python\build\gcc-mingw-4.6.1\debug\threading-multi\object\function_doc_signature.o"   
-Wl,-Bstatic  -Wl,-Bdynamic -lpython27 -Wl,--end-group -g -mthreads

...failed gcc.link.dll
bin.v2\libs\python\build\gcc-mingw-4.6.1\debug\threading-multi\libboost_python-mgw46-mt-d-1_48.dll.a
bin.v2\libs\python\build\gcc-mingw-4.6.1\debug\threading-multi\libboost_python-mgw46-mt-d-1_48.dll...
...removing
bin.v2\libs\python\build\gcc-mingw-4.6.1\debug\threading-multi\libboost_python-mgw46-mt-d-1_48.dll.a
...skipped <pstage\lib>libboost_python-mgw46-mt-d-1_48.dll.a for lack of <pbin.v2\libs\python\build\gcc-mingw-4.6.1\debug\threading-multi>libboost_python-mgw46-mt-d-1_48.dll.a...
...skipped <pstage\lib>libboost_python-mgw46-mt-d-1_48.dll for lack of <pbin.v2\libs\python\build\gcc-mingw-4.6.1\debug\threading-multi>libboost_python-mgw46-mt-d-1_48.dll...
...failed updating 8 targets...
...skipped 8 targets...

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