CODEWITHSUNDEEP
c++pathheader-filespybind11
John Glen
John Glen

Reputation: 931

Unable to use pybind11 headers

I just want to be able to compile a C++ program with the following line

#include <pybind11/pybind11.h>

I have tried to set the path with cmake:

set(CMAKE_CXX_FLAGS "-march=native -O3 -I /usr/include/python3.9/ -I /home/.local/lib/python3.9/site-packages/pybind11/include/")

Did not work. Direct path to file in CMAKE_CXX_FLAGS leads to file not found.

I tried to add the header path to the bashrc:

$HOME/.local/lib/python3.9/site-packages/pybind11/include

$ pybind11/pybind11.h
bash: pybind11/pybind11.h: No such file or directory

If I path to:

$HOME/.local/lib/python3.9/site-packages/pybind11/include/pybind11

$ pybind11.h
bash: pybind11.h: command not found...

None of that makes the header visible!

This stuff always works when I try to import headers in C++.

The file

$HOME/.local/lib/python3.9/site-packages/pybind11/include/pybind11/pybind11.h

is definitely on the system. I can do this just fine:

#include </home/.local/lib/python3.9/site-packages/pybind11/include/pybind11/pybind11.h>

What is going on?

Upvotes: 0

Views: 1190

Answers (1)

John Glen
John Glen

Reputation: 931

I could not figure out how to use the installed pybind11[global], so I just created a git repo for my project and added pybind11 as a submodule.

Then in my cmake I added add_subdirectory(extern/pybind11) as requested by the docs. I think this builds the source in the directory.

Then I had to use target_include_directories(sps INTERFACE extern/pybind11/include) so that the sources in target sps could use the headers.

Upvotes: 1

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