我正在使用pybind11
和CMake
3.9.4编写一个python模块。由于方便,我希望在我的pybind11
中使用ExternalProject_Add
下载ExternalProject_Add
源文件。
当我运行cmake .
时,它不会下载pybind11
源文件,并引发错误。
CMake Error at CMakeLists.txt:21 (add_subdirectory):
The source directory
/Users/me/foo/pybind11_external-prefix/src/pybind11_external
does not contain a CMakeLists.txt file.
CMake Error at CMakeLists.txt:22 (pybind11_add_module):
Unknown CMake command "pybind11_add_module".
有一个解决办法:
cmake .
make
(然后下载pybind11
源文件)cmake .
make
不过,这不明智..。是否有任何方法可以使用pybind11
下载ExternalProject_Add
,而无需注释行并恢复它们(也不需要运行cmake
和make
两次)?
/Users/me/foo/CMakeLists.txt
cmake_minimum_required(VERSION 3.8)
project(foo)
set(CMAKE_CXX_STANDARD 14)
include(ExternalProject)
ExternalProject_Add(
pybind11_external
GIT_REPOSITORY https://github.com/pybind/pybind11.git
GIT_TAG v2.2.1
CONFIGURE_COMMAND ""
BUILD_COMMAND ""
INSTALL_COMMAND ""
)
set(PYBIND11_CPP_STANDARD -std=c++14)
ExternalProject_Get_Property(pybind11_external source_dir)
include_directories(${source_dir}/include)
add_subdirectory(${source_dir}) # comment out, then restore this line
pybind11_add_module(foo SHARED foo.cpp) # comment out, then restore this line
add_dependencies(foo pybind11_external) # comment out, then restore this line
/Users/me/foo/foo.hpp
#ifndef FOO_LIBRARY_H
#define FOO_LIBRARY_H
#include<pybind11/pybind11.h>
int add(int i, int j);
#endif
/Users/me/foo/foo.cpp
#include "foo.hpp"
int add(int i, int j) {
return i + j;
}
PYBIND11_MODULE(example, m) {
m.doc() = "pybind11 example plugin";
m.def("add", &add, "A function which adds two numbers");
}
发布于 2018-09-13 10:26:27
使用CMake的FetchContent模块(version 3.11+),您可以这样做:
include(FetchContent)
FetchContent_Declare(
pybind11
GIT_REPOSITORY https://github.com/pybind/pybind11
GIT_TAG v2.2.3
)
FetchContent_GetProperties(pybind11)
if(NOT pybind11_POPULATED)
FetchContent_Populate(pybind11)
add_subdirectory(${pybind11_SOURCE_DIR} ${pybind11_BINARY_DIR})
endif()
这将在配置时下载pybind11,并对其进行add_subdirectory
。那么你就可以打电话给pybind11_add_module
了。
https://stackoverflow.com/questions/47027741
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