我无法在我的 Mac 上构建一个使用 Boost.Test 的小程序,并在 MacPorts 上安装了 Boost/opt/local/lib/
这是我的最小源文件,test.cpp
:
#define BOOST_TEST_MODULE MyTest
#include <boost/test/unit_test.hpp>
BOOST_AUTO_TEST_CASE(test1) {
}
我的CMakeLists.txt
:
cmake_minimum_required(VERSION 2.6)
project (test)
find_package(Boost COMPONENTS unit_test_framework REQUIRED)
add_executable(test test.cpp)
摘录自make VERBOSE=1
:
[100%] Building CXX object CMakeFiles/test.dir/test.cpp.o
g++ -o CMakeFiles/test.dir/test.cpp.o -c /Users/exclipy/Code/cpp/inline_variant/question/test.cpp
Linking CXX executable test
"/Applications/CMake 2.8-5.app/Contents/bin/cmake" -E cmake_link_script CMakeFiles/test.dir/link.txt --verbose=1
g++ -Wl,-search_paths_first -Wl,-headerpad_max_install_names CMakeFiles/test.dir/test.cpp.o-o test
Undefined symbols for architecture x86_64:
"_main", referenced from:
start in crt1.10.6.o
"vtable for boost::unit_test::unit_test_log_t", referenced from:
boost::unit_test::unit_test_log_t::unit_test_log_t() in test.cpp.o
boost::unit_test::unit_test_log_t::~unit_test_log_t() in test.cpp.o
NOTE: a missing vtable usually means the first non-inline virtual member function has no definition.
如您所见,它不知道如何链接到 Boost 库。所以我尝试添加到 CMakeLists.txt:
target_link_libraries(test boost_unit_test_framework)
但我只是得到:
g++ -Wl,-search_paths_first -Wl,-headerpad_max_install_names CMakeFiles/test.dir/test.cpp.o-o test -lboost_unit_test_framework
ld: library not found for -lboost_unit_test_framework
通过大量的试验和错误,我发现手动运行它是有效的:
$ g++ test.cpp -L/opt/local/lib -lboost_unit_test_framework -DBOOST_TEST_DYN_LINK
但是经过几个小时的摆弄,我无法从 CMake 构建它。我不在乎它是动态链接还是静态链接,我只想让它工作。