I use bjam like so: bjam toolset=gcc link=static runtime-link=static threading=single \ --with-iostreams --with-filesystem \ -sNO_COMPRESSION=0 -sNO_ZLIB=0 -sZLIB_SOURCE=C:/zlib123 \ --build-type=release install -------------------------------------------------- But, I do not believe that zlib is being built or linked in to iostreams. The only libs I get in C:/Boost/lib after bjam are these: libboost_filesystem-mgw34-s.lib libboost_system-mgw34-s.lib libboost_iostreams-mgw34-s.lib However, the output from bjam does not indicate any errors with iostreams or zlib. -------------------------------------------------- When I try to compile the zlib example from here: http://www.boost.org/doc/libs/1_37_0/libs/iostreams/doc/classes/zlib.html#ex... I get these errors: C:/Users/e4m/AppData/Local/Temp/ccSscQ9O.o:zlib_test.cpp:(.text$_ZN5boost9iostreams6detail22zlib_decompressor_implISaIcEED2Ev[boost::iostreams::detail::zlib_decompressor_impl<std::allocator<char>

::~zlib_decompressor_impl()]+0x58): undefined reference to `boost::iostreams::detail::zlib_base::reset(bool, bool)' C:/Users/e4mAppData/Local/Temp/ccSscQ9O.o:zlib_test.cpp:(.text$_ZN5boost9iostreams6detail22zlib_decompressor_implISaIcEED2Ev[boost::iostreams::detail::zlib_decompressor_impl<std::allocator<char> ::~zlib_decompressor_impl()]+0x6a): undefined reference to `boost::iostreams::detail::zlib_base::~zlib_base()' ... ... ...

-------------------------------------------------- I am trying to compile the example like this: g++ -static -O3 zlib_test.cpp -o zlib_test.exe -Ic://Boost/include/boost-1_37/ c://Boost/lib/libboost_iostreams-mgw34-s.lib -------------------------------------------------- Here is the example source code as I have modified it slightly while experimenting: #include <fstream> #include <iostream> #include <boost/iostreams/filtering_streambuf.hpp> #include <boost/iostreams/copy.hpp> #include <boost/iostreams/filter/zlib.hpp> //#include "C:/boost_1_37_0/boost_1_37_0/libs/iostreams/src/zlib.cpp" #define BOOST_IOSTREAMS_NO_LIB int main() { using namespace std; using namespace boost::iostreams; ifstream file("hello.z", ios_base::in | ios_base::binary); filtering_streambuf<input> in; in.push(zlib_decompressor()); in.push(file); boost::iostreams::copy(in, cout); return 0; } -------------------------------------------------- I've googled a lot for the last week trying to figure out what I'm doing wrong, to no avail... Can someone help me? Thanks, e