Fails to build on Ubuntu 18.04

[ihor-nahuliak]

The error step is here:

[ 58%] Linking CXX executable io_test_pbf
CMakeFiles/io_test_pbf.dir/t/io/test_pbf.cpp.o: In function `osmium::io::detail::decode_blob(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&)':
/home/undefined/work/kvadom/libosmium/include/osmium/io/detail/zlib.hpp:108: undefined reference to `uncompress'
/home/undefined/work/kvadom/libosmium/include/osmium/io/detail/zlib.hpp:111: undefined reference to `zError'
CMakeFiles/io_test_pbf.dir/t/io/test_pbf.cpp.o: In function `void std::vector<std::thread, std::allocator<std::thread> >::_M_realloc_insert<void (osmium::thread::Pool::*)(), osmium::thread::Pool*>(__gnu_cxx::__normal_iterator<std::thread*, std::vector<std::thread, std::allocator<std::thread> > >, void (osmium::thread::Pool::*&&)(), osmium::thread::Pool*&&)':
/usr/include/c++/7/thread:126: undefined reference to `pthread_create'
CMakeFiles/io_test_pbf.dir/t/io/test_pbf.cpp.o: In function `osmium::thread::Pool::Pool(int, unsigned long)':
/usr/include/c++/7/thread:126: undefined reference to `pthread_create'
CMakeFiles/io_test_pbf.dir/t/io/test_pbf.cpp.o: In function `osmium::io::Reader::Reader<>(osmium::io::File const&)':
/usr/include/c++/7/thread:126: undefined reference to `pthread_create'
/usr/include/c++/7/thread:126: undefined reference to `pthread_create'
collect2: error: ld returned 1 exit status
test/CMakeFiles/io_test_pbf.dir/build.make:95: recipe for target 'test/io_test_pbf' failed
make[2]: *** [test/io_test_pbf] Error 1
CMakeFiles/Makefile2:2360: recipe for target 'test/CMakeFiles/io_test_pbf.dir/all' failed
make[1]: *** [test/CMakeFiles/io_test_pbf.dir/all] Error 2
Makefile:162: recipe for target 'all' failed
make: *** [all] Error 2

****  Installation failed. Aborting package creation.

[joto]

Well, it seems it doesn't find the zlib and pthread libraries. Have you installed all the dependencies as explained here: https://osmcode.org/libosmium/manual.html#dependencies ? Please post complete command lines you used as well as all output.

[ihor-nahuliak]

Yes, I'd installed all dependencies from that link before try to build the source.
zlib1g-dev is already the newest version (1:1.2.11.dfsg-0ubuntu2)
libbz2-dev is already the newest version (1.0.6-8.1).
Sorry, I don't see any pthread package in dependencies.

[ImreSamu]

@ihor-nahuliak :
maybe helpful to you:
see my full docker based log ( for what you should expect on ubuntu:18:04 )
so you can compare - and check the differences yourself.
https://gist.github.com/ImreSamu/24531a72d84b3c816dee95d56d43b83b

Don't forget removing the cmake project files, and check the cmake logs!
https://stackoverflow.com/questions/27247123/how-to-clean-up-the-project-files-generated-by-cmake/27254365

[adoerr]

I can confirm that after installing the dependencies mentioned in the manual the build works on Ubuntu 18.04. This is for the 'all' and the 'test' targets. So, you might want to close this issue.

[joto]

Yes, works for me too and the original reporter didn't supply requested information. Closing.

[utack]

Edit: Forgot the cmake target_link_libraries, sorry! Everything works now

[demiantres]

I came across the same problem. My fix was to use manually compile protozero instead of using the one shipped with Ubuntu.