How to link against boost.system with cmake

Question

I use a cmake generated makefile to compile a c++ file that depends on the boost filesystem library.

During the linking process I get the following error:

Answer 1

On linux CMake figures itself that boost_filesystem is linked against boost_system. Obviously you have to tell it explicitly on Mac:

find_package(Boost COMPONENTS system filesystem REQUIRED)
#...
target_link_libraries(mytarget 
  ${Boost_FILESYSTEM_LIBRARY}
  ${Boost_SYSTEM_LIBRARY}
)