I am generating libs from header-only source files, I have a simple header with
no dependencies, and a header with boost_filesystem and boost_system
dependencies.
I am facing linking problems (ld) against boost, when I link the library to
the test executable. Tests are in a subdirectory, with an extra CMakeLists.txt.
With the no-dependency header, I have no problems.
Top CMakeLists.txt:
add_library(histo-header histo-header.h)
set_target_properties(histo-header PROPERTIES LINKER_LANGUAGE CXX)
FILE(COPY histo-header.h DESTINATION include)
test/CMakeLists.txt:
add_executable(test_histo.exe test_histo.cpp)
target_link_libraries(test_histo.exe ${test_libraries})
target_link_libraries(test_histo.exe histo-header)
All good here.
But when I do the same with the library with boost dependencies:
Top CMakeLists.txt:
find_package(Boost COMPONENTS
system filesystem
REQUIRED)
include_directories(${Boost_INCLUDE_DIRS})
add_library(histo-header-boost histo-header-boost.h )
target_link_libraries(histo-header-boost PUBLIC ${Boost_Libraries})
set_target_properties(histo-header-boost PROPERTIES LINKER_LANGUAGE CXX)
FILE(COPY histo-header-boost.h DESTINATION include)
test/CMakeLists.txt:
SET( Boost_LIBRARIES ${Boost_LIBRARIES} PARENT_SCOPE )
add_executable(test_histo-boost.exe test_histo-boost.cpp )
target_link_libraries(test_histo-boost.exe ${test_libraries})
target_link_libraries(test_histo-boost.exe histo-header-boost)
I face this error:
CMakeFiles/test_histo-boost.exe.dir/test_histo-boost.cpp.o: In function
`__static_initialization_and_destruction_0(int, int)':
test_histo-boost.cpp:(.text+0x1c2): undefined reference to
`boost::system::generic_category()'
test_histo-boost.cpp:(.text+0x1ce): undefined reference to
`boost::system::generic_category()'
test_histo-boost.cpp:(.text+0x1da): undefined reference to
`boost::system::system_category()'
collect2: error: ld returned 1 exit status
m
What am I missing here?
So
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