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Undefined references when including boost library


Undefined references when including boost library

By : devkailash
Date : October 20 2020, 11:12 PM
This might help you I had this problem a few days ago when working with boost::asio. You need compile and link with the boost::system library.
code :


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Including c files leads to undefined references

Including c files leads to undefined references


By : Wan Norliana
Date : March 29 2020, 07:55 AM
wish helps you Generally one includes ".h" files, not ".c" files.
If you call a function declared in a .h file, it is not sufficient to compile the starting C file to get a complete program -- you also need to link in the object files associated with the code that implements the declared functions. These might be in a library, in which case you need to link with that library.
c++ linking boost library under ubuntu with cmake: undefined reference to `boost::iostreams::zlib::okay'

c++ linking boost library under ubuntu with cmake: undefined reference to `boost::iostreams::zlib::okay'


By : CVAPS
Date : March 29 2020, 07:55 AM
seems to work fine Your find_package call for Boost is incomplete.
All non-header-only libraries from Boost which you use need to be listed explicitly for ${Boost_LIBRARIES} to be populated correctly. It is easy to lose track of which parts of Boost are header-only and which are not, but linker errors like the one you encountered are always a clear hint.
code :
find_package(Boost REQUIRED COMPONENTS system iostreams)
linker error while linking boost log (undefined references to boost::log::v2_mt_posix::sinks)

linker error while linking boost log (undefined references to boost::log::v2_mt_posix::sinks)


By : user7368909
Date : March 29 2020, 07:55 AM
hope this fix your issue After some digging, I found a clue: It looks like some files are left even after uninstalling of previous boost version 1.58 in /usr/lib/x86_64-linux-gnu
The issue was resolved after I deleted manually all libboost* files with exception for *.so.1.58.0 (see description below why) from /usr/lib/x86_64-linux-gnu left from the previous installation (my currently installed boost v 1.64 is in /usr/local):
Undefined references - I'm including correct header

Undefined references - I'm including correct header


By : prestorondo
Date : March 29 2020, 07:55 AM
should help you out The fact that you don't get a compilation error, but an undefined reference usually means that your project knows where the header files are, but it doesn't know where the library is which contains the already compiled source code.
I've never written a plugin for Qt Creator but I've taken a quick look at its source code structure and I see the following options:
boost-1.55.0 undefined reference to `boost::thread::join() even after linking with the correct library

boost-1.55.0 undefined reference to `boost::thread::join() even after linking with the correct library


By : Manuel
Date : March 29 2020, 07:55 AM
fixed the issue. Will look into that further boost::thread::join() is an inline function now.
Your build system probably does not maintain dependencies on system headers and ends up linking object files compiled against an older version of boost. Do a full rebuild.
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