Boost C++ Libraries: Ticket #5964: Linkage fails with cross-compiled boost.thread

Fri, 30 Sep 2011 10:09:59 GMT

Sorry, I forgot to specify my e-mail before posting this. Please add it whoever has rights to: vleschuk@…

vleschuk@… — Tue, 11 Oct 2011 05:37:45 GMT

I performed few simple tests:

The samples were compiled by the following command: x86_64-w64-mingw32-g++ -I ./boost/svn_74606-win64/include/boost-1_48 -o test.exe test.cpp ./boost/svn_74606-win64/lib/libboost_thread-mgw-mt-1_48.a

int main() { }

#include <boost/thread.hpp> int main() { }

#include <boost/thread.hpp> int main() {

boost::thread thr;

}

NOT ok:

/tmp/ccm0ryQa.o:kk.cpp:(.text+0x17): undefined reference to `impZN5boost6threadC1Ev' /tmp/ccm0ryQa.o:kk.cpp:(.text+0x27): undefined reference to `impZN5boost6threadD1Ev'

Hope this helps...

vleschuk@… — Tue, 18 Oct 2011 07:50:30 GMT

I reviewed the boost headers and found out that the second problem (with multiple definition of thread_data_base is caused because during build of boost itself posix threads are used, but when compiling headers for the application threadapi is being detected by compiler and OS defines. So it was trying to use Win32 threads. This can be solved by using BOOST_THREAD_POSIX define

The following command works fine:

x86_64-w64-mingw32-g++ -DBOOST_THREAD_POSIX -DBOOST_THREAD_USE_LIB -I/path/to/pthreads/headers -I/path/to/boost/headers -o test.exe test_boost.cpp -L/path/to/boost/lib -lboost_thread-mgw-mt-s-1_48 -lpthreadGC2 -static-libgcc -static-libstdc++

So I think this ticket should be closed as "not a bug".

status changed; resolution set

anonymous — Tue, 18 Oct 2011 08:05:40 GMT

status new → closed
resolution → invalid