CMake的：未定義參考Boost庫

Question

我通過這個添加上去：

set(Boost_USE_STATIC_LIBS  ON) 
set(Boost_USE_MULTITHREADED  ON) 
set(Boost_USE_STATIC_RUNTIME OFF) 
find_package(Boost REQUIRED) 
include_directories(${Boost_INCLUDE_DIR}) 

project(APP C CXX) 
add_executable(APP src.cpp) 
target_link_libraries(APP ${Boost_LIBRARIES}) 

當我編譯源，我得到：

demo.cpp:(.text+0x3d3): undefined reference to `boost::system::generic_category()' 

我檢查拼寫（Boost_LIBRARIES VS BOOST_LIBRARIES），但它的確定。

我使用package boost-devel在Fedora中安裝了boost。

Answer 1

查看source code,Boost_LIBRARIES根據傳遞給find_package的元件列表填寫。嘗試：

find_package(Boost REQUIRED COMPONENTS system) 

您還應該使用進口的目標：

set(Boost_USE_STATIC_LIBS  ON) 
set(Boost_USE_MULTITHREADED  ON) 
set(Boost_USE_STATIC_RUNTIME OFF) 
find_package(Boost REQUIRED COMPONENTS system) 

# the call to include_directories is now useless: 
# the Boost::system imported target used below 
# embeds the include directories 

project(APP C CXX) 
add_executable(APP src.cpp) 
target_link_libraries(APP Boost::system)