Errors linking to Boost system - c++

Question

I've built Boost 1.59 for MinGW 4.9.2 32bit as follows:
bootstrap.bat mingw
b2 --prefix=%USERPROFILE%\Code\Libraries\boost toolset=gcc install (these are static libraries)
When trying to compile:
#include <iostream>
#include <boost/asio.hpp>
#include <boost/date_time/posix_time/posix_time.hpp>
using namespace std;
int main()
{
boost::asio::io_service io;
boost::asio::deadline_timer t(io, boost::posix_time::seconds(5));
t.wait();
cout << "Hello World!" << endl;
return 0;
}
With:
g++ -o test -L %USERPROFILE%\Code\Libraries\boost\lib -l boost_system-mgw49-mt-1_59 -I %USERPROFILE%\Code\Libraries\boost\include\boost-1_59 main.cpp
I get this error:
C:\Users\Brady\AppData\Local\Temp\ccsbGjrk.o:main.cpp:(.text+0x193): undefined reference to `boost::system::generic_category()'
C:\Users\Brady\AppData\Local\Temp\ccsbGjrk.o:main.cpp:(.text+0x19d): undefined reference to `boost::system::generic_category()'
C:\Users\Brady\AppData\Local\Temp\ccsbGjrk.o:main.cpp:(.text+0x1a7): undefined reference to `boost::system::system_category()'
C:/Program Files (x86)/QT/Tools/mingw492_32/bin/../lib/gcc/i686-w64-mingw32/4.9.2/../../../../i686-w64-mingw32/bin/ld.exe: C:\Users\Brady\AppData\Local\Temp\ccsbGjrk.o: bad reloc address 0xe in section `.text$_ZN5boost6system14error_categoryD2Ev[__ZN5boost6system14error_categoryD2Ev]'
collect2.exe: error: ld returned 1 exit status
I'm getting this same error across 2 computers. Any help is appreciated!

Answer 1

It's a linker error. You need to link to the Boost System library.
Do this
g++ -o test -L %USERPROFILE%\Code\Libraries\boost\lib -lboost_system -I %USERPROFILE%\Code\Libraries\boost\include\boost-1_59 main.cpp