[Boost-users] boost:thread compiling problem

[Shaolin]

Hi Guys

I am try to create a thread with boost but eveytime I execute I get some freaky error messages. See code below followed by error msg:

#include <boost/thread/thread.hpp>
#include <iostream>
using namespace std;

void hello()
{
    cout << "hello" << endl;
}

int main(int argc, char* argv[])
{   
    boost::thread thrd1(&hello); // ERROR caused by the &hello param
    thrd1.join();
       
}


Error Message:

/tmp/cc3ymRwv.o: In function `main':
main.cc:(.text+0x417): undefined reference to `boost::thread::join()'
main.cc:(.text+0x422): undefined reference to `boost::thread::~thread()'
main.cc:(.text+0x43b): undefined reference to `boost::thread::~thread()'
/tmp/cc3ymRwv.o: In function `boost::mutex::mutex()':
main.cc:(.text._ZN5boost5mutexC1Ev[boost::mutex::mutex()]+0x45): undefined reference to `boost::thread_resource_error::thread_resource_error()'
main.cc:(.text._ZN5boost5mutexC1Ev[boost::mutex::mutex()]+0x4d): undefined reference to `boost::thread_resource_error::~thread_resource_error()'
main.cc:(.text._ZN5boost5mutexC1Ev[boost::mutex::mutex()]+0x55): undefined reference to `typeinfo for boost::thread_resource_error'
/tmp/cc3ymRwv.o: In function `boost::detail::thread_data<void (*)()>::~thread_data()':
main.cc:(.text._ZN5boost6detail11thread_dataIPFvvEED0Ev[boost::detail::thread_data<void (*)()>::~thread_data()]+0x16): undefined reference to `boost::detail::thread_data_base::~thread_data_base()'
/tmp/cc3ymRwv.o: In function `boost::detail::thread_data<void (*)()>::~thread_data()':
main.cc:(.text._ZN5boost6detail11thread_dataIPFvvEED1Ev[boost::detail::thread_data<void (*)()>::~thread_data()]+0x16): undefined reference to `boost::detail::thread_data_base::~thread_data_base()'
/tmp/cc3ymRwv.o: In function `boost::condition_variable::condition_variable()':
main.cc:(.text._ZN5boost18condition_variableC1Ev[boost::condition_variable::condition_variable()]+0x3a): undefined reference to `boost::thread_resource_error::thread_resource_error()'
main.cc:(.text._ZN5boost18condition_variableC1Ev[boost::condition_variable::condition_variable()]+0x42): undefined reference to `boost::thread_resource_error::~thread_resource_error()'
main.cc:(.text._ZN5boost18condition_variableC1Ev[boost::condition_variable::condition_variable()]+0x4a): undefined reference to `typeinfo for boost::thread_resource_error'
/tmp/cc3ymRwv.o: In function `boost::detail::thread_data_base::thread_data_base()':
main.cc:(.text._ZN5boost6detail16thread_data_baseC2Ev[boost::detail::thread_data_base::thread_data_base()]+0x1b): undefined reference to `vtable for boost::detail::thread_data_base'
/tmp/cc3ymRwv.o: In function `boost::thread::thread<void (*)()>(void (*)(), boost::disable_if<boost::is_convertible<void (*&)(), boost::detail::thread_move_t<void (*)()> >, boost::thread::dummy*>::type)':
main.cc:(.text._ZN5boost6threadC1IPFvvEEET_NS_10disable_ifINS_14is_convertibleIRS4_NS_6detail13thread_move_tIS4_EEEEPNS0_5dummyEE4typeE[boost::thread::thread<void (*)()>(void (*)(), boost::disable_if<boost::is_convertible<void (*&)(), boost::detail::thread_move_t<void (*)()> >, boost::thread::dummy*>::type)]+0x32): undefined reference to `boost::thread::start_thread()'
/tmp/cc3ymRwv.o:(.rodata._ZTIN5boost6detail11thread_dataIPFvvEEE[typeinfo for boost::detail::thread_data<void (*)()>]+0x8): undefined reference to `typeinfo for boost::detail::thread_data_base'
collect2: ld returned 1 exit status

[Steven Watanabe]

AMDG

Shaolin wrote:
> I am try to create a thread with boost but eveytime I execute I get some
> freaky error messages. See code below followed by error msg:
>
> #include <boost/thread/thread.hpp>
> #include <iostream>
> using namespace std;
>
> void hello()
> {
> cout << "hello" << endl;
> }
>
> int main(int argc, char* argv[])
> {
> boost::thread thrd1(&hello); // ERROR caused by the &hello param
> thrd1.join();
>
> }
>

You need to link to the thread library.
Please read the getting started guide.

In Christ,
Steven Watanabe

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[Shaolin]

I have read the getting started section and its confused me even more.

2009/8/21 Steven Watanabe <watan...@gmail.com>

[James C. Sutherland]

On Aug 20, 2009, at 6:47 PM, Shaolin wrote:

I have read the getting started section and its confused me even more.

Read it again ;-)

boost::thread is a compiled library that you must link against.  Be sure that you have compiled and installed the library, and that you are including the appropriate link command.

[Shaolin]

Ok, I have managed to compile and install the libs but I dont know how to include it in the commandline. The regex example works fine but how do I do it for thread ?

$ c++ -I path/to/boost_1_39_0 example.cpp -o example \

   ~/boost/stage/lib/libboost_regex-gcc34-mt-d-1_36.a

2009/8/21 James C. Sutherland <James.Su...@utah.edu>

[Rush Manbert]

On Aug 21, 2009, at 9:03 AM, Shaolin wrote:

Ok, I have managed to compile and install the libs but I dont know how to include it in the commandline. The regex example works fine but how do I do it for thread ?

$ c++ -I path/to/boost_1_39_0 example.cpp -o example \

   ~/boost/stage/lib/libboost_regex-gcc34-mt-d-1_36.a

The library naming all follows a pattern, so:

 ~/boost/stage/lib/libboost_thread-gcc34-mt-d-1_36.a

which should work if you actually built the library.

- Rush

[Shaolin]

Thanks, it looks like I didnt install it properly .. below is the error message I get:

g++:  ~/boost/stage/lib/libboost_thread-gcc34-mt-d-1_36.a: No such file or directory

This is what I did the install the lib.
$ cd /usr/local/boost_1_39_0
$ sudo ./bootstrap.sh
$ sudo ./bjam install

2009/8/21 Rush Manbert <ru...@manbert.com>

[Roman Shmelev]

I do not know if I will be able to help, but I use simple:
-lboost_thread
*there is L letter before boost_thread*

[Steven Watanabe]

AMDG

Shaolin wrote:
> Thanks, it looks like I didnt install it properly .. below is the error
> message I get:
>

> *g++: ~/boost/stage/lib/libboost_thread-gcc34-mt-d-1_36.a: No such file or
> directory*

>
> This is what I did the install the lib.
> $ cd /usr/local/boost_1_39_0
> $ sudo ./bootstrap.sh
> $ sudo ./bjam install
>

bjam install places the libraries under /usr/lib
bjam stage or just bjam puts the libraries
in stage/lib.

In Christ,
Steven Watanabe

[Shaolin]

Ok, I have reconfigured it and the file is now located in the boost_1_39_0 directory. However, it still doesnt work. This is what I type in command line:

g++ -I /usr/local/boost_1_39_0 test.cc -o example \ ~/stage/lib/libboost_thread-gcc43-mt-1_39.a

stage directory: /usr/local/boost_1_39_0/stage/lib/libboost_thread-gcc43-mt-1_39.a

2009/8/21 Steven Watanabe <watan...@gmail.com>

[Steven Watanabe]

AMDG

Shaolin wrote:
> Ok, I have reconfigured it and the file is now located in the boost_1_39_0
> directory. However, it still doesnt work. This is what I type in command
> line:
>
> g++ -I /usr/local/boost_1_39_0 test.cc -o example \
> ~/stage/lib/libboost_thread-gcc43-mt-1_39.a
>

Does ~/stage/lib/libboost_thread-gcc43-mt-1_39.a exist?
From what you say below I doubt it, so of course it doesn't
work.

> *stage directory*:
> /usr/local/boost_1_39_0/stage/lib/libboost_thread-gcc43-mt-1_39.a
>

Assuming that this is the actual location of the library, use
-L/usr/local/boost_1_39_0/stage/lib -lboost_thread-gcc43-mt-1_39

[Shaolin]

Ok, the lib issues have been fixed. I have configured it all properly and I am not longer getting the 'dir not found errors'. I am alas getting a new error.

// This is what I enter in commandline
$ g++ -I /usr/local/boost_1_39_0 filereader.cc -o fr -L~/usr/local/boost_1_39_0/boost/stage/lib/libboost_thread-gcc43-mt-1_39.a

// ERROR MSG:
/tmp/ccv0fHxn.o: In function `main':
filereader.cc:(.text+0x3f0): undefined reference to `boost::thread::~thread()'
/tmp/ccv0fHxn.o: In function `boost::mutex::mutex()':
filereader.cc:(.text._ZN5boost5mutexC1Ev[boost::mutex::mutex()]+0x45): undefined reference to `boost::thread_resource_error::thread_resource_error()'
filereader.cc:(.text._ZN5boost5mutexC1Ev[boost::mutex::mutex()]+0x4d): undefined reference to `boost::thread_resource_error::~thread_resource_error()'
filereader.cc:(.text._ZN5boost5mutexC1Ev[boost::mutex::mutex()]+0x55): undefined reference to `typeinfo for boost::thread_resource_error'
/tmp/ccv0fHxn.o: In function `boost::detail::thread_data<void (*)()>::~thread_data()':
filereader.cc:(.text._ZN5boost6detail11thread_dataIPFvvEED0Ev[boost::detail::thread_data<void (*)()>::~thread_data()]+0x16): undefined reference to `boost::detail::thread_data_base::~thread_data_base()'
/tmp/ccv0fHxn.o: In function `boost::detail::thread_data<void (*)()>::~thread_data()':
filereader.cc:(.text._ZN5boost6detail11thread_dataIPFvvEED1Ev[boost::detail::thread_data<void (*)()>::~thread_data()]+0x16): undefined reference to `boost::detail::thread_data_base::~thread_data_base()'
/tmp/ccv0fHxn.o: In function `boost::condition_variable::condition_variable()':
filereader.cc:(.text._ZN5boost18condition_variableC1Ev[boost::condition_variable::condition_variable()]+0x3a): undefined reference to `boost::thread_resource_error::thread_resource_error()'
filereader.cc:(.text._ZN5boost18condition_variableC1Ev[boost::condition_variable::condition_variable()]+0x42): undefined reference to `boost::thread_resource_error::~thread_resource_error()'
filereader.cc:(.text._ZN5boost18condition_variableC1Ev[boost::condition_variable::condition_variable()]+0x4a): undefined reference to `typeinfo for boost::thread_resource_error'
/tmp/ccv0fHxn.o: In function `boost::detail::thread_data_base::thread_data_base()':
filereader.cc:(.text._ZN5boost6detail16thread_data_baseC2Ev[boost::detail::thread_data_base::thread_data_base()]+0x1b): undefined reference to `vtable for boost::detail::thread_data_base'
/tmp/ccv0fHxn.o: In function `boost::thread::thread<void (*)()>(void (*)(), boost::disable_if<boost::is_convertible<void (*&)(), boost::detail::thread_move_t<void (*)()> >, boost::thread::dummy*>::type)':
filereader.cc:(.text._ZN5boost6threadC1IPFvvEEET_NS_10disable_ifINS_14is_convertibleIRS4_NS_6detail13thread_move_tIS4_EEEEPNS0_5dummyEE4typeE[boost::thread::thread<void (*)()>(void (*)(), boost::disable_if<boost::is_convertible<void (*&)(), boost::detail::thread_move_t<void (*)()> >, boost::thread::dummy*>::type)]+0x32): undefined reference to `boost::thread::start_thread()'
/tmp/ccv0fHxn.o:(.rodata._ZTIN5boost6detail11thread_dataIPFvvEEE[typeinfo for boost::detail::thread_data<void (*)()>]+0x8): undefined reference to `typeinfo for boost::detail::thread_data_base'

collect2: ld returned 1 exit status

2009/8/21 Steven Watanabe <watan...@gmail.com>

[Michael Caisse]

You are still not using your tools correctly. -L is for specifying a directory location.
The errors you are getting are because you are not linking the thread library.

Let me suggest that you take some time with a simple non-boost example and learn how the
compiler and linker work. The problems you are having are simply because you do not
understand your tools. I am sure there must be some good tutorials on basic compiling/linking
somewhere on the web.

Good luck
Michael

--

----------------------------------
Michael Caisse
Object Modeling Designs
www.objectmodelingdesigns.com