首先,我是CMake的新手。我刚刚开始使用它。我想将外部库链接到我的项目。我使用了从CMake wiki获取的代码(在文章末尾)。这是我的CMakeLists.txt:
cmake_minimum_required(VERSION 2.8)
project(hello_world)
set(SOURCE_EXE main.cpp)
include_directories(foo)
add_library(foo STATIC IMPORTED)
set_property(TARGET foo PROPERTY IMPORTED_LOCATION /usr/lib/libfoo.a)
target_link_libraries(main foo)
这是一个错误的文本:
-- The C compiler identification is GNU 4.7.3
-- The CXX compiler identification is GNU 4.7.3
-- Check for working C compiler: /usr/bin/cc
-- Check for working C compiler: /usr/bin/cc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/c++
-- Check for working CXX compiler: /usr/bin/c++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
CMake Error at CMakeLists.txt:24 (target_link_libraries):
Cannot specify link libraries for target "main" which is not built by this
project.
-- Configuring incomplete, errors occurred!
我该如何正确地做到这一点?
答案 0 :(得分:8)
您似乎错过了add_executable
来电。您需要在CMakeLists.txt中添加main
作为可执行目标:
set(SOURCE_EXE main.cpp)
add_executable(main ${SOURCE_EXE})
...
target_link_libraries(main foo)