Hi, I'm relativly new user of Boost and up to this point I haven't any problems. Building and using the library with MSVC 8 hasn't cause any problems to me. Now I'm trying to compile Boost 1.34.1 with the Intel 9.1 compiler but I'm getting very strange compilation errors. I'm using the latest version of the bjam and I have set the toolset like this: using intel-win : 9.1 : "C:/Program Files/Intel/Compiler/C++/9.1/IA32/Bin/icl.exe" ; Usually most of the files in evry sublibrary compile but 2-3 fail. For example: compile-c-c++ bin.v2\libs\test\build\intel-win-9.1\debug\threading-multi\exception_safety.obj Intel(R) C++ Compiler for 32-bit applications, Version 9.1 Build 20060706Z Package ID: W_CC_C_9.1.028 Copyright (C) 1985-2006 Intel Corporation. All rights reserved. icl -Qvc8 "-Qlocation,link,C:\Program Files\Microsoft Visual Studio 8\VC\bin" libs\test\src\exception_safety.cpp -Fobin. v2\libs\test\build\intel-win-9.1\debug\threading-multi\exception_safety.obj -TP /Z7 /Od /Ob0 /W3 /GR /MDd /Zc:forScope / Zc:wchar_t /GB /Op /Qwn5 /Qwd985 -Qoption,c,--arg_dep_lookup /Zc:forScope /Qansi_alias /Zc:wchar_t -D_NATIVE_WCHAR_T_DEF INED -Qoption,cpp,--arg_dep_lookup /wd4675 /EHs -c -DBOOST_ALL_NO_LIB=1 -DBOOST_TEST_DYN_LINK=1 -I. exception_safety.cpp .\boost/test/impl/exception_safety.ipp(453): error: namespace "std" has no member "isprint" if( std::isprint( c ) ) ^ detected during instantiation of "void boost::itest::<unnamed>::format_execution_path(boost::wrap_stringstream &, ExecPathIt, ExecPathIt, unsigned int) [with ExecPathIt=boost::itest::execution_path_point *]" compilation aborted for libs\test\src\exception_safety.cpp (code 2) call "C:/Program Files/Intel/Compiler/C++/9.1/IA32/Bin//iclvars.bat" > nul icl @"bin.v2\libs\test\build\intel-win-9.1\debug\threading-multi\exception_safety.obj.rsp" ...failed compile-c-c++ bin.v2\libs\test\build\intel-win-9.1\debug\threading-multi\exception_safety.obj... I'll be very thankful for any suggestions and comments. Regards Dido ----------------------------------------------------------------- С бензин в кръвта! http://auto-motor-und-sport.bg/