将boost\u numpy3与CMAKE链接

TL;DR在archlinux上从CMake 3.10更新到CMake 3.11.1时,请使用以下配置行:

find\u包(需要Boost COMPONENTS python3 COMPONENTS numpy3)

导致针对3个不同库的CMake链接

-- Boost version: 1.66.0
-- Found the following Boost libraries:
--   python3
--   numpy3
--   python

与之前的行为不同:

-- Boost version: 1.66.0
-- Found the following Boost libraries:
--   python3
--   numpy3

导致链接器错误。

我使用CMake构建了一个依赖于Boost python的软件,几天前,似乎

find_package(Boost COMPONENTS numpy3 REQUIRED)

不再足以让CMake理解它应该将程序与Boost联系起来 python3 库,并使用Boost库 python 相反

这里有一个简单的工作示例来重现我所说的内容。

测验cpp公司

#include <iostream>

using namespace std;
int main()
{
    cout << "Hello, world!" << endl;
}

CMakeList。txt文件

set(CMAKE_VERBOSE_MAKEFILE ON)
find_package(PythonLibs 3 REQUIRED)
find_package(Boost COMPONENTS numpy3 REQUIRED)
add_executable (test test.cpp)
target_link_libraries(test ${Boost_LIBRARIES} ${PYTHON_LIBRARIES})

使用CMake的此配置,将发生链接器错误,并且当我更改添加numpy的行时,错误仍然存在

find_package(Boost COMPONENTS python3 COMPONENTS numpy3 REQUIRED)

以下是 cmake . && make :

/home/rastapopoulos/test $ cmake .
-- Boost version: 1.66.0
-- Found the following Boost libraries:
--   numpy3
--   python
CMake Warning (dev) in CMakeLists.txt:
  No cmake_minimum_required command is present.  A line of code such as

    cmake_minimum_required(VERSION 3.11)

  should be added at the top of the file.  The version specified may be lower
  if you wish to support older CMake versions for this project.  For more
  information run "cmake --help-policy CMP0000".
This warning is for project developers.  Use -Wno-dev to suppress it.

-- Configuring done
-- Generating done
-- Build files have been written to: /home/rastapopoulos/test
/home/rastapopoulos/test $ make
/usr/bin/cmake -H/home/rastapopoulos/test -B/home/rastapopoulos/test --check-build-system CMakeFiles/Makefile.cmake 0
/usr/bin/cmake -E cmake_progress_start /home/rastapopoulos/test/CMakeFiles /home/rastapopoulos/test/CMakeFiles/progress.marks
make -f CMakeFiles/Makefile2 all
make[1]: Entering directory '/home/rastapopoulos/test'
make -f CMakeFiles/test.dir/build.make CMakeFiles/test.dir/depend
make[2]: Entering directory '/home/rastapopoulos/test'
cd /home/rastapopoulos/test && /usr/bin/cmake -E cmake_depends "Unix Makefiles" /home/rastapopoulos/test /home/rastapopoulos/test /home/rastapopoulos/test /home/rastapopoulos/test /home/rastapopoulos/test/CMakeFi
les/test.dir/DependInfo.cmake --color=
make[2]: Leaving directory '/home/rastapopoulos/test'
make -f CMakeFiles/test.dir/build.make CMakeFiles/test.dir/build
make[2]: Entering directory '/home/rastapopoulos/test'
[ 50%] Linking CXX executable test
/usr/bin/cmake -E cmake_link_script CMakeFiles/test.dir/link.txt --verbose=1
/usr/bin/c++    -rdynamic CMakeFiles/test.dir/test.o  -o test -lboost_numpy3 -lboost_python -lpython3.6m
/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.1/../../../../lib/libboost_python.so: undefined reference to `PyString_Size'
/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.1/../../../../lib/libboost_python.so: undefined reference to `PyUnicodeUCS4_FromEncodedObject'
/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.1/../../../../lib/libboost_python.so: undefined reference to `PyFile_FromString'
/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.1/../../../../lib/libboost_python.so: undefined reference to `PyString_Type'
/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.1/../../../../lib/libboost_python.so: undefined reference to `PyInt_Type'
/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.1/../../../../lib/libboost_python.so: undefined reference to `PyString_FromString'
/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.1/../../../../lib/libboost_python.so: undefined reference to `PyUnicodeUCS4_AsWideChar'
/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.1/../../../../lib/libboost_python.so: undefined reference to `PyString_FromStringAndSize'
/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.1/../../../../lib/libboost_python.so: undefined reference to `Py_InitModule4_64'
/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.1/../../../../lib/libboost_python.so: undefined reference to `PyString_FromFormat'
/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.1/../../../../lib/libboost_python.so: undefined reference to `PyNumber_Divide'
/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.1/../../../../lib/libboost_python.so: undefined reference to `PyNumber_InPlaceDivide'
/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.1/../../../../lib/libboost_python.so: undefined reference to `PyInt_AsLong'
/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.1/../../../../lib/libboost_python.so: undefined reference to `PyString_InternFromString'
/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.1/../../../../lib/libboost_python.so: undefined reference to `PyClass_Type'
/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.1/../../../../lib/libboost_python.so: undefined reference to `PyString_AsString'
/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.1/../../../../lib/libboost_python.so: undefined reference to `PyInt_FromLong'
/usr/lib/gcc/x86_64-pc-linux-gnu/7.3.1/../../../../lib/libboost_python.so: undefined reference to `PyFile_AsFile'
collect2: error: ld returned 1 exit status
make[2]: *** [CMakeFiles/test.dir/build.make:90: test] Error 1
make[2]: Leaving directory '/home/rastapopoulos/test'
make[1]: *** [CMakeFiles/Makefile2:71: CMakeFiles/test.dir/all] Error 2
make[1]: Leaving directory '/home/rastapopoulos/test'
make: *** [Makefile:87: all] Error 2

是否有人遇到过类似的问题并设法解决了它?我使用 cmake 3.11.1 ,则, boost 1.66.0-2 ,并运行更新版本的Archlinux。