[Boost-users] Link issue with condition_variable

Subject: [Boost-users] Link issue with condition_variable
From: Bradley W. Settlemyer (settlemyerbw_at_[hidden])
Date: 2009-11-06 09:19:44

Hello,

   I'm using boost for the first time and I'm struggling to link my 
program.  I've added libboost_pthread-mt to the link link (which got 
most of the symbols), but I still can't seem to get the symbols for the 
condition variables.  The issue could be with the code, as I find the 
lock-mutex-condition_variable interactions to be very confusing, but it 
does appear to be a link issue.  Consider the following error message 
emitted during link command:

mpicxx <objects> -D_FILE_OFFSET_BITS=64 -L/lib64   -lfuse -lrt -ldl 
-lboost_thread-mt -lpthread -o aio_benchmark
src/aio/thread_pool_adaptive_writer.o: In function 
`aio::ThreadPoolWriter::Write(aio::File*, std::vector<int, 
std::allocator<int> >, void*, unsigned long)':
/home/bws/sandbox/aiofs/src/aio/thread_pool_writer.cc:59: undefined 
reference to `boost::condition_variable::notify_all()'
/home/bws/sandbox/aiofs/src/aio/thread_pool_writer.cc:63: undefined 
reference to 
`boost::condition_variable::wait(boost::unique_lock<boost::mutex>&)'
src/aio/thread_pool_writer.o: In function 
`aio::ThreadPoolWriter::threadWait()':
/home/bws/sandbox/aiofs/src/aio/thread_pool_writer.cc:76: undefined 
reference to 
`boost::condition_variable::wait(boost::unique_lock<boost::mutex>&)'
/home/bws/sandbox/aiofs/src/aio/thread_pool_writer.cc:110: undefined 
reference to `boost::condition_variable::notify_one()'

Is condition variable in a different library?  I am using the boost 
stuff distributed with Fedora 11:

boost-1.37.0-7.fc11.x86_64
boost-devel-1.37.0-7.fc11.x86_64

Cheers,
Brad