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Re: [Boost-users] [serialization] Problems with serializing a shared_ptr
by Stefan Ulbrich 17 Nov '09

17 Nov '09

Hi, thanks a lot for you help. Unfortunately, adding a virtual dummy function to the base class (the only one I can alter directly in the library) didn't resolve the problem. So I don't know (didn't check the beta) if 1.41 will resolve this issue. I tried to track it down deep into the heap allocation but I don't have any experience at all with meta-programming and the MPL and gave up in the end. I found a quick (and dirty) fix, though, that helps in my case. Therefor, I wrote a specialization of boost::archive::details::heap_allocator for the eigen::Matrix<> classes that uses code that was reserved for compiler that didn't support the has_new_operator feature (which is obviously the case). namespace boost { namespace archive { namespace detail { template<typename Scalar, int Rows, int Cols> struct heap_allocator<Eigen::Matrix<Scalar, Rows, Cols> > { typedef Eigen::Matrix<Scalar, Rows, Cols> T; static T * invoke() { return static_cast<T *> (operator new(sizeof (T))); } }; }; }; }; Best regards, Stefan

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Preprocessor Question
by Surya Kiran Gullapalli 17 Nov '09

17 Nov '09

Hello all, I'm trying to come up with a solution for the following problem. I've a macro with three arguments, but if the third is not given, it should be assumed as '0'. Something on the lines of default arguments for functions. I'm using VS2005, and g++ 4.4.x so i can use Variadic macros, but I'm unable to come up with a solution. Is there any way i can achieve this using Boost.Preprocessor ? I tried using BOOST_PP_IF but unable to proceed further. Any Ideas ? Surya

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[test] Still SIGCHLD issues?
by Johan Nilsson 17 Nov '09

17 Nov '09

Hi, I'm in progress of updating some projects to use Boost 1.40 (upgrading from 1.34.1). Everything now works fine under Windows, but under Linux there are issues with running unit tests that spawns and control child processes. My tests now report fatal errors and stops responding. Searching the archives I see several references to a problem with SIGCHLD, but no fix seems to have been issued. I'm sure there is a valid reason for treating SIGCHLD as errors, but does it really need to be enabled by default? Seems like a regression to me. Is it possible to disable this without patching Boost.Test? I'd really, really, really like to not go that route. Regards / Johan

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Re: [Boost-users] [serialization] Problems with serializing a shared_ptr
by Stefan Ulbrich 17 Nov '09

17 Nov '09

Thanks for your answer, Robert. Mi compiler version is: gcc version 4.0.1 (Apple Inc. build 5465) The error occurs only in the load method of the class and the serialization routines for the matrix class are non-inversive (save seems to work). Do you have any idea what is causing this error? Best, Stefan

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boost_1_40_setup___.exe - failing to download mirror list
by Carlos Tapia 17 Nov '09

17 Nov '09

I'm trying to run the BoostPro 1.40.0 Installer on an XP machine but I keep getting the following message: Failed to download mirror list, all downloadable content has been disabled.

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program_options: Is there a way to parse an ODBC connect string?
by Eric J. Holtman 16 Nov '09

16 Nov '09

I'd like to parse an ODBC connect string (or other similarly constructed strings) using program_options. So, I have something like: Data Source=myServerAddress;Initial Catalog=myDataBase;Integrated Security=SSPI; now, I could implement the function that converts this to something I can use, like --Data_Source myServerAddress --Initial_Catalog myDataBase --Integrated_Security SSPI but I was wondering since there's already a split_winmain function, is there a function that already does this, before I roll my own?

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[Asio]opening two udp::sockets on different ports
by Ãtienne Lepercq 16 Nov '09

16 Nov '09

I am not a specialist in TCP/UDP communications, but I am trying to implement some communications using UDP packets (v6). I can't use anything else than UDP v6 due to external constraints. I am using boost 1.37. I tried boost 1.40, same problem (see below) I have implemented a first architecture, working like : - a server listens to UDP packets v6 coming on a port ( let's say 65000). - a client connects to that port by sending a UDP packet. - the server starts a new thread, which listens for udpv6 packets on another port - the client should deconnect and reconnect to that other port. Cleitns starts opening the first socket like that : boost::asio::io_service io_service; udp::endpoint endpoint; udp::socket socket(io_service); udp::resolver::query query(udp::v6(), m_host, m_port); udp::resolver resolver(io_service); endpoint = *resolver.resolve(query); socket.open(udp::v6()); Then a function is called that sends a packet, receive an answer, etc... WORKS ! Then, I would like that socket being closed, and reopened on the same host, but on a different port. Something like this : socket.close(); udp::socket socket(io_service); udp::resolver::query query2(udp::v6(), m_host, NEWPORT); udp::resolver resolver2(io_service); endpoint = *resolver2.resolve(query2); socket.open(udp::v6()); But it fails miserably, throwing exception "Host not found (Authoritative)" on this second attempt. m_host is the ipv6 loopback address, "::1". I tried declaring at the same time, a full new set of io_service, endpoint, socket, query, resolver : the very same thing happens ! That said, there is another thread listening on the NEWPORT for udp v6 packets. I am developping mainly under linux, using lsof lists exactly the right number of ports opened (m_port and NEWPORT are opened for udpv6) So what is incorrect ? I don't really understand the behavior and complexity of io_service, maybe that's the problem ? How can I reopen a second socket on another port ? That port being listed by the system as opened succesfully, I really think the problem lies in that section. Thank you !

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boost-regex: how to compile with mingw?
by Matthias Pospiech 16 Nov '09

16 Nov '09

I have never worked with boost or the regex libary but need it as a dependency for another project. I could compile the libary for Visual Studio 2005 (VS8), but the docs give not a single hint how to compile with mingw on Windows (here XP). I tried gcc an generic, but that does not work H:\boost_1_40_0\libs\regex\build>mingw32-make -fgcc.mak gcc.mak:37: "Building Boost.Regex without ICU / Unicode support:" gcc.mak:38: "Hint: set ICU_PATH on the nmake command line to point " gcc.mak:39: "to your ICU installation if you have one." mkdir -p gcc mkdir -p gcc/boost_regex-gcc-1_40 Syntaxfehler. mingw32-make: *** [gcc/boost_regex-gcc-1_40] Error 1 H:\boost_1_40_0\libs\regex\build>mingw32-make -fgeneric.mak mkdir -p generic Ein Unterverzeichnis oder eine Datei mit dem Namen "-p" existiert bereits. Folgender Fehler trat auf: -p. mingw32-make: *** [generic] Error 1 How should it be done? Matthias

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[serialization] Problems with serializing a shared_ptr
by Stefan Ulbrich 16 Nov '09

16 Nov '09

Hello, I want to add serialization support to the Eigen2 matrix class. It works well (at least at compile time) until I try to serialize a shared_ptr. boost::shared_ptr<MatrixXd> shape; template <typename Archive> void serialize(Archive& ar, const unsigned int version) { ar & BOOST_SERIALIZATION_NVP(shape); }; I receive a long error message that begins with the first error: /usr/local/include/boost/type_traits/has_new_operator.hpp: In instantiation of 'boost::detail::has_new_operator_impl<Eigen::Matrix<double, 10000, 10000, 2, 10000, 10000> >': /usr/local/include/boost/type_traits/has_new_operator.hpp:109: instantiated from 'boost::has_new_operator<Eigen::Matrix<double, 10000, 10000, 2, 10000, 10000> >' /usr/local/include/boost/mpl/if.hpp:67: instantiated from 'boost::mpl::if_<boost::has_new_operator<Eigen::Matrix<double, 10000, 10000, 2, 10000, 10000> >, boost ::mpl ::identity <boost::archive::detail::heap_allocator<Eigen::Matrix<double, 10000, 10000, 2, 10000, 10000> >::has_new_operator>, boost ::mpl ::identity <boost::archive::detail::heap_allocator<Eigen::Matrix<double, 10000, 10000, 2, 10000, 10000> >::doesnt_have_new_operator> >' /usr/local/include/boost/mpl/eval_if.hpp:37: instantiated from 'boost::mpl::eval_if<boost::has_new_operator<Eigen::Matrix<double, 10000, 10000, 2, 10000, 10000> >, boost ::mpl ::identity <boost::archive::detail::heap_allocator<Eigen::Matrix<double, 10000, 10000, 2, 10000, 10000> >::has_new_operator>, boost ::mpl ::identity <boost::archive::detail::heap_allocator<Eigen::Matrix<double, 10000, 10000, 2, 10000, 10000> >::doesnt_have_new_operator> >' /usr/local/include/boost/archive/detail/iserializer.hpp:235: instantiated from 'static T* boost::archive::detail::heap_allocator<T>::invoke() [with T = Eigen::Matrix<double, 10000, 10000, 2, 10000, 10000>]' /usr/local/include/boost/archive/detail/iserializer.hpp:278: instantiated from 'void boost::archive::detail::pointer_iserializer<Archive, T>::load_object_ptr(boost::archive::detail::basic_iarchive&, void*&, unsigned int) const [with Archive = boost::archive::xml_iarchive, T = Eigen::Matrix<double, 10000, 10000, 2, 10000, 10000>]' BodySchema.cpp:110: instantiated from here /usr/local/include/boost/type_traits/has_new_operator.hpp:85: error: call of overloaded 'check_sig(int)' is ambiguous Has anybody a hint for me what is missing in the matrix class? second, could anybody please explain to me what BOOST_SERIALIZATION_SHARED_PTR does and when I have to use it (only saw it in the demo file). Thank you, Best regards Stefan

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[foreach][auto] Mixing foreach and auto ?
by Maxime van Noppen 16 Nov '09

16 Nov '09

Hi list, I'm a big fan of both foreach and auto facilities provided by Boost and was thinking of merging the two. I searched in the list archives and saw the question was discussed earlier but didn't find a clear reason on why it shouldn't be done. How bad is this quite simple solution : > #define AUTO_FOREACH(VAR, COL) \ > BOOST_FOREACH_PREAMBLE() \ > if (boost::foreach_detail_::auto_any_t BOOST_FOREACH_ID(_foreach_col) = BOOST_FOREACH_CONTAIN(COL)) {} else \ > if (boost::foreach_detail_::auto_any_t BOOST_FOREACH_ID(_foreach_cur) = BOOST_FOREACH_BEGIN(COL)) {} else \ > if (boost::foreach_detail_::auto_any_t BOOST_FOREACH_ID(_foreach_end) = BOOST_FOREACH_END(COL)) {} else \ > for (bool BOOST_FOREACH_ID(_foreach_continue) = true; \ > BOOST_FOREACH_ID(_foreach_continue) && !BOOST_FOREACH_DONE(COL); \ > BOOST_FOREACH_ID(_foreach_continue) ? BOOST_FOREACH_NEXT(COL) : (void)0) \ > if (boost::foreach_detail_::set_false(BOOST_FOREACH_ID(_foreach_continue))) {} else \ > for (BOOST_AUTO(VAR, BOOST_FOREACH_DEREF(COL)); !BOOST_FOREACH_ID(_foreach_continue); BOOST_FOREACH_ID(_foreach_continue) = true) > > #define auto_foreach AUTO_FOREACH It is basically the same code as BOOST_FOREACH (from boost 1.39) except that last line where I added the BOOST_AUTO in the for initialization. auto_foreach can then be used as : > auto_foreach(i, container) // i is a copy > auto_foreach(&i, container) // i is a reference > auto_foreach(const &i, container) // is a const reference This seems pretty cool and I don't see obvious pitfalls though I don't know the exact magic behind both auto & foreach. Am I living dangerously by using this auto_foreach ? Thanks, -- Maxime

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[test] Linking against boost_unit_test_framework causes double-deletion in std::ostringstream
by Alastair Rankine 16 Nov '09

16 Nov '09

Just curious if anyone else has seen this or anything like it? Platform is Mac OS X 10.6.1, gcc 4.2.1, boost 1.40.0 installed from MacPorts, compiling 64-bit (default). Here's my test code: #include <sstream> int main() { std::ostringstream str; str << "Help Me!"; return 0; } Here's what I'm doing: % g++ -o streamtest_bad -ggdb -L/opt/local/lib -lboost_unit_test_framework-mt-d streamtest.cpp % ./streamtest_bad streamtest_bad(63554) malloc: *** error for object 0x7fff7008a500: pointer being freed was not allocated *** set a breakpoint in malloc_error_break to debug zsh: abort ./streamtest_bad % Works fine against other boost libraries, eg system: % g++ -o streamtest_good -ggdb -L/opt/local/lib -lboost_system-mt-d streamtest.cpp % ./streamtest_good % Note that this seems to be a separate problem to that reported in ticket 3432 (https://svn.boost.org/trac/boost/ticket/3432) At least, I have verified that the framework::clear() function isn't being called in the above code, which does tend to point the finger at a different part of the library. The backtrace is not particularly enlightening, but posted here for the sake of completeness: (gdb) bt #0 0x00007fff87f92ff6 in __kill () #1 0x00007fff88034072 in abort () #2 0x00007fff87f4b095 in free () #3 0x0000000100005533 in __gnu_cxx::new_allocator<char>::deallocate (this=0x7fff5fbff5df, __p=0x7fff7008a500 "") at new_allocator.h:97 #4 0x0000000100005578 in std::string::_Rep::_M_destroy (this=0x7fff7008a500, __a=@0x7fff5fbff63f) at basic_string.tcc:431 #5 0x0000000100005939 in std::string::_Rep::_M_dispose (this=0x7fff7008a500, __a=@0x7fff5fbff63f) at basic_string.h:238 #6 0x000000010000596a in std::basic_string<char, std::char_traits<char>, std::allocator<char> >::~basic_string (this=0x7fff5fbff670) at basic_string.h:493 #7 0x000000010002ad55 in std::basic_stringbuf<char, std::char_traits<char>, std::allocator<char> >::overflow (this=0x7fff5fbff7f8, __c=72) at sstream.tcc:125 #8 0x0000000100029db0 in std::basic_streambuf<char, std::char_traits<char> >::xsputn (this=0x7fff5fbff7f8, __s=0x100000e7e "Help Me!", __n=8) at streambuf.tcc:102 #9 0x00007fff806e0ae4 in std::__ostream_write<char, std::char_traits<char> > () #10 0x00007fff806deb98 in std::__ostream_insert<char, std::char_traits<char> > () #11 0x00007fff806dec58 in std::operator<< <std::char_traits<char> > () #12 0x0000000100000d6b in main () at streamtest.cpp:6

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Boost.Test: access name of test case within that case?
by Martin Moene 16 Nov '09

16 Nov '09

(Previously mis-posted in Boost.testing) Hi, I'm wondering if the name of a Boost.Test test case is available within that case, and if so how. Couldn't find it in the documentation, the list, a web search, nor by a quick browse of the sources. Thanks for any reply , -- Martin Moene, http://www.eld.physics.LeidenUniv.nl/~moene/

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Integration testing tools a-top boost::test?
by Tim St. Clair 16 Nov '09

16 Nov '09

Gennadiy and Co, Boost test works great for my unit tests, but I'm curious to see what other folks use for high level integration tests across a multi-platform env? Ideally it would be atop of some script language so it's easy to add and adjust, which may require some setup & teardown in the local env and could differ for each platform. Plugins to some continuous integration env are a +. -- Cheers, Timothy St. Clair Sr. Software Engineer [Red Hat - MRG]

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[Asio]About aync_write and socket.close()
by victor 16 Nov '09

16 Nov '09

Hi,All io_service_.run() in itself thread. I initial socket with it , like "socket_(io_service_)" . Then I read data from this socket in io_service thread. Now if i want call "async_write " to this socket in another thread, do I must use "io_service_.post( boost::bind function which call async_write)", or can I call async_write directly? And if i want close this socket, do I must use "io_service_.post(..)" , or can I use "socket_.close()" directly in another thread? thanks

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[multi_array][serialization]
by er 16 Nov '09

16 Nov '09

The issue of serializing a multi-array came up here: http://lists.boost.org/boost-users/2007/06/28639.php I was wondering if anyone had followed up on this and would be willing to share his/her code.

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building 1.40 with 1.3x lib naming
by Adam Fisk 15 Nov '09

15 Nov '09

This should hopefully be an easy one. I'm having trouble with the new default lib naming in 1.40.0. I previously linked to libraries with the following naming structure with 1.38.0, for example: libboost_system-mt-sgd.lib With 1.40.0, I get simply: libboost_system.lib I'm running with --layout=system (just as I was with 1.38 - my scripts haven't changed). What can I change in 1.40.0 to get "-mt-sgd" in the name? Thanks so much. -Adam -- Adam Fisk http://www.littleshoot.org | http://adamfisk.wordpress.com | http://twitter.com/adamfisk

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Re: [Boost-users] boost filesystem api problem
by nipun_mlist Assam 15 Nov '09

15 Nov '09

> I am using boost 1.32.0 and using filesystem apis. i included > boost/filesystem/operations.hpp and boost/filesystem/path.hpp. > > I get the following link error: > undefined reference to > `boost::filesystem::detail::status_api(std::basic_string<char, > std::char_traits<char>, std::allocator<char> > const&, int&)' > undefined reference to > `boost::filesystem::detail::get_current_path_api(std::basic_string<char, > std::char_traits<char>, std::allocator<char> >&)' > > I did the following brute force check of probable libraries in > tools/boost/1.32.0/lib. > $ nm -DCo *.so* | grep status_ai > But no luck. No match for the api found in any of the libraries. > > > Anybody, please help. > > Regards, > Nipun >

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[Review] GGL review extended until November 22nd
by Hartmut Kaiser 15 Nov '09

15 Nov '09

Hi all, The discussions around GGL are just start ramping up and we received only 2 (voting) reviews so far. Additionally, several people have been asking me off-list to extend the review period as they otherwise wouldn't be able to write a review in time. For these reasons the review period for the GGL library will be extended for another week. The review period will now end November 22nd. For everybody considering to vote: this would be a good time to write a review! Regards Hartmut GGL Review Manager ------------------- Meet me at BoostCon http://boostcon.com

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test an open port?
by pedro chaparro 14 Nov '09

14 Nov '09

hi, how can i do a test before a data transmmision to know if a port is being used or not? thnaks -- Ing Pedro Alonso Chaparro Valero Ciudad Politecnica de la Innovación iTEAM - Mobile Communications Group Polytechnic University of Valencia C\ Camino de Vera S/N, Edificio 8G 46022 Valencia, Spain

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concat integer to wstring
by Lloyd 14 Nov '09

14 Nov '09

Hi, What is the best way to concatanate an integer to wstring? for example =========== std::wstring ws=L"str"; for(int i=0;i<10;++i) { cout<<ws+i; } The output could be str1 str2 .... str9 Thanks, Lloyd ______________________________________ Scanned and protected by Email scanner

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Asio : opening two udp::sockets on differentports
by Ãtienne Lepercq 13 Nov '09

13 Nov '09

I am not a specialist in TCP/UDP communications, but I am trying to implement some communications using UDP packets (v6). I can't use anything else than UDP v6 due to external constraints. I am using boost 1.37. I tried boost 1.40, same problem (see below) I have implemented a first architecture, working like : - a server listens to UDP packets v6 coming on a port ( let's say 65000). - a client connects to that port by sending a UDP packet. - the server starts a new thread, which listens for udpv6 packets on another port - the client should deconnect and reconnect to that other port. Cleitns starts opening the first socket like that : boost::asio::io_service io_service; udp::endpoint endpoint; udp::socket socket(io_service); udp::resolver::query query(udp::v6(), m_host, m_port); udp::resolver resolver(io_service); endpoint = *resolver.resolve(query); socket.open(udp::v6()); Then a function is called that sends a packet, receive an answer, etc... WORKS ! Then, I would like that socket being closed, and reopened on the same host, but on a different port. Something like this : socket.close(); udp::socket socket(io_service); udp::resolver::query query2(udp::v6(), m_host, NEWPORT); udp::resolver resolver2(io_service); endpoint = *resolver2.resolve(query2); socket.open(udp::v6()); But it fails miserably, throwing exception "Host not found (Authoritative)" on this second attempt. m_host is the ipv6 loopback address, "::1". I tried declaring at the same time, a full new set of io_service, endpoint, socket, query, resolver : the very same thing happens ! That said, there is another thread listening on the NEWPORT for udp v6 packets. I am developping mainly under linux, using lsof lists exactly the right number of ports opened (m_port and NEWPORT are opened for udpv6) So what is incorrect ? I don't really understand the behavior and complexity of io_service, maybe that's the problem ? How can I reopen a second socket on another port ? That port being listed by the system as opened succesfully, I really think the problem lies in that section. Thank you !

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Problems installing Boost/Linking probs
by Hanno Jung 13 Nov '09

13 Nov '09

Hi everybody, I used the Installer for Boost (v 1.39) since download servers for 1.40 seem not to work. I chose the variants for vc 2005 and vc 2008 (both are installed) + the regex part. I added "C:\Programme\boost\boost_1_39\lib" as an additional library path like mentioned in the getting started guide. Now I try to build the example "Link your program to a Boost Library" from the guide. But i always get an error. "fatal error C1083: Datei (Include) kann nicht geöffnet werden: "boost/regex.hpp": No such file or directory" But the the directory is there and contains regex.hpp. Anyone may help me get this working? Greets

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Setting up Boost.Python under XP, and .pyd imports
by Mohan Ganesalingam 13 Nov '09

13 Nov '09

Hi, I'm having some trouble trying to set up boost.python on Windows XP with MSVC 9 and Python 2.6; any help would be much appreciated. I started by following the instructions in http://www.boost.org/doc/libs/1_40_0/libs/python/doc/tutorial/doc/html/pyth… I started by adding the directory with the bjam executable to the oath, and running it from the tutorial directory. I found that it ignores the user-config.jam in %HOMEDRIVE%%HOMEPATH%, and uses the one in C:\Program Files\_Applications\Microsoft Visual Studio 9.0\boost_1_39\tools\build\v2\user-config.jam instead; apart from that, everything works correctly and I get extending.pyd and a load of other files in C:\Program Files\_Applications\Microsoft Visual Studio 9.0\boost_1_39\libs\python\example\quickstart\bin\msvc-9.0\debug\threading-multi I know it must be possible to import extending.pyd from that selfsame directory, because the testing script run by bjam manages it. But the only way I could load it myself was to copy it into some directory that is in the path. Is there any way to simply have the .pyd loaded from the local directory, i.e. from the directory that the main .py script is executed in? (I guess I could temporarily modify sys.path inside the script... but that seems rather gawky.) Also, while trying to solve this problem, I found a number of references instructing me to put boost_python.dll in the main Python directory. I couldn't find this file (after having run bjam), only "boost_python-vc90-mt-gd-1_39.dll". Is that the right one to use? Thank you in advance, Mohan

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[mpi] - how to split communicator correctly?
by tomasz jankowski 13 Nov '09

13 Nov '09

ello group, i think I know how to split communicators & how it works in pure c mpi. but I have problems with boost::mpi. assume that we want divide world communicator into 3 groups. please look here: mpi::environment env(argc, argv); mpi::communicator world; mpi::communicator elloa; mpi::communicator elloc; mpi::communicator ellob; if(world.rank() == 0){ elloa = world.split(0); } if(world.rank() == 1){ elloa = world.split(0); } if(world.rank() == 2){ elloa = world.split(0); } if(world.rank() == 3){ ellob = world.split(1); } if(world.rank() == 4){ ellob = world.split(1); } if(world.rank() == 5){ ellob = world.split(1); } if(world.rank() == 6){ elloc = world.split(2); } if(world.rank() == 7){ elloc = world.split(2); } if(world.rank() == 0){ std::cout<<"elloa " << elloa.size()<<std::endl; std::cout<<"ellob " << ellob.size()<<std::endl; std::cout<<"elloc " << elloc.size()<<std::endl; } the code above gives me such results: elloa 3 ellob 8 elloc 8 my question is why ellob and alloc communicators counts 8 members not 3 and 2 respetively? what I'm doing incorrect? tom ---------------------------------------------------- Pudzian czy Najman? Najdroższa walka w historii polskiego MMA Polecam 12 edycję Gali KSW! Sprawdź: http://klik.wp.pl/?adr=http%3A%2F%2Fcorto.www.wp.pl%2Fas%2F12konfrontacja.h…

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change command used by bjam when installing boost
by Tim 13 Nov '09

13 Nov '09

Hi, I first install boost.build and bjam. Then I try to make the building boost library a little bit slower by adding some time to sleep between every two calls to g++. So I add this in /etc/site-config.jam using gcc ; ; "sleep 10; g++" ; However, when calling bjam to install, it gives this error: $ ./bjam install \/etc/site-config.jam:5: syntax error at keyword ; /etc/site-config.jam:5: in load rule sleep 10; g++ unknown in module pch. /tmp/boost_1_40_0/tools/build/v2/kernel/modules.jam:283: in import /tmp/boost_1_40_0/tools/build/v2/tools/gcc.jam:19: in load /tmp/boost_1_40_0/tools/build/v2/kernel/modules.jam:283: in import /tmp/boost_1_40_0/tools/build/v2/build/toolset.jam:37: in toolset.using /tmp/boost_1_40_0/tools/build/v2/build/project.jam:874: in using project-config.jam:12: in modules.load /tmp/boost_1_40_0/tools/build/v2/build-system.jam:241: in load-config /tmp/boost_1_40_0/tools/build/v2/build-system.jam:407: in load-configuration-files /tmp/boost_1_40_0/tools/build/v2/build-system.jam:538: in load /tmp/boost_1_40_0/tools/build/v2/kernel/modules.jam:283: in import /tmp/boost_1_40_0/tools/build/v2/kernel/bootstrap.jam:138: in boost-build /tmp/boost_1_40_0/boost-build.jam:16: in module scope Some advice how to solve this? Thanks and regards!

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