Boost: use it with Qt

[Handi]

I cannot express how much time I've wasted over the last few weeks trying to get shit work with boost.

Anyway, I'm trying to setup boost with Qt Creator right now, and I'm having linking issues.

I've built my boost libraries for MinGW using:

b2 --build-dir=build toolset=gcc --build-type=complete stagegcc

b2 --build-dir=build toolset=gcc --build-type=complete stagegcc

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Now, I've added the following lines to my .pro:

LIBS += -L"c:/boost_1_47_0/stagegcc/lib/"
INCLUDEPATH += c:/boost_1_47_0/
DEPENDPATH += c:/boost_1_47_0/

LIBS += -L"c:/boost_1_47_0/stagegcc/lib/"
INCLUDEPATH += c:/boost_1_47_0/
DEPENDPATH += c:/boost_1_47_0/

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I'm using boost's ASIO library, which needs boost::system library
when I try to compile my project I get the error:

undefined reference to 'boost::system::generic_category()'

undefined reference to 'boost::system::generic_category()'

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I've read several threads about how to get boost to work with Qt, but none of them helped so far.
Also, I'm relatively new with Qt, last time I used it was 2 years ago for one project, so please be detailed in your instructions.

I HATE boost right now.
No success at all configuring it with Code::Blocks
Managed to make it work with MSVC just to discover that it doesn't work with c++/cli so I cannot make any GUIs.

Thank you

[jainishjain]

I too faced same problem couple of years ago while working on application using Qt and boost together.

I worked by defining QT_NO_KEYWORDS macro (this will prohibit using Qt's signals and slots keywords which clashes with Boost) and then used Q_SIGNALS, Q_SLOT instead of Qt's signals and slots keywords while declaring in header file. You
http://www.boost.org/doc/libs/1_49_0...gnals/s04.html

Hope that helps.

Jainish

[wysota]

You are not linking against boost, you just told your compiler where to look for it but you didn't tell it to actually look for it. Add a LIBS += -l<libname> entry to your project file. By the way... What Boost ASIO does, Qt already does. So maybe it's easier to just port your code to Qt to get rid of the additional dependency.

[Handi]

Thanks for the replies,

I've added:
LIBS += -lboost_system-mgw46-mt-1_47\
-lboost_thread-mgw46-mt-1_47

and
#define BOOST_THREAD_USE_LIB
to my source file

Now I simply get "collect2: ld returned 1 exit status", no details...
This is bad

I'm slowly considering the option of dropping boost altogether now...

[wysota]

You surely get more than this obscure message.