c++ - link to boost::thread fails -

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i'm trying install program called mgiza. compiles cmake , requires boost libraries. used commands

cmake . make

when run 'make' following errors:

d4norm.cxx:(.text+0x95b): undefined reference `boost::system::generic_category()'

and likes. inserted following line in cmakelists.txt:

find_package( boost 1.41 components system)

it worked because more files compiled , warning above disappeared, got warnings:

main.cpp:(.text+0x7174): undefined reference `boost::thread::hardware_concurrency()'

although have find_package( boost 1.41 components thread) in cmakelists. doing wrong?

you need search thread component:

find_package(boost 1.41 components thread system)

in newer versions of boost.thread should link against boost.chrono

find_package(boost components thread chrono system)

then need link executable against , add includes:

# check if worked out if(boost_found)   add_executable(main main.cpp) # executable or library or whatever   target_link_libraries(main ${boost_libraries})   target_include_directories(main ${boost_include_dirs}) else()   # panic endif()

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