I made a project that has glfw as a library, my directory looks like this:
main_dir
|--include
|--|--glfw_binder.h
|--src
|--|--glfw_binder.cpp
|--lib
|--|--glfw
|--|--|--src
|--|--|--|--libglfw.so
|--|--|--|--libglfw.so.3
|--|--|--|--libglfw.so.3.3
|--|--|--|--...
|--|--|--include
|--|--|-- ...
|--main.cpp
|--setup.py
|--test.py
I've installed glfw from its website and simply extracted it to lib/ directory. Then I ran cmake -G "Unix Makefiles" followed by make to build it.
When I try to run it as pure C++ with this cmake file it runs just fine, it displays the glfw window:
cmake_minimum_required(VERSION 3.0)
project(Test)
add_subdirectory(lib/glfw)
find_package(PythonLibs REQUIRED)
include_directories(${PYTHON_INCLUDE_DIRS})
include_directories(${CMAKE_CURRENT_SOURCE_DIR}/include)
add_executable(Test main.cpp src/glfw_binder.cpp)
target_link_libraries(Test PRIVATE
${PYTHON_LIBRARIES}
glfw
)
And here is what my setup.py looks like:
from setuptools import setup, Extension, find_packages
module1 = Extension('test',
sources = ['main.cpp', 'src/glfw_binder.cpp'],
include_dirs=["include", "lib/glfw/include"],
library_dirs=["lib/glfw"],
libraries=["lib/glfw"],
extra_link_args=["lib/glfw"]
)
setup (name = 'python_test',
version = '1.0',
description = 'This is a demo package',
packages=find_packages("glfw"),
ext_modules = [module1]
)
Then I run python3 setup.py build followed by sudo python3 setup.py install. It creates the so files just fine. Then I run this test code:
import test
test.create_glfw_window()
When I run this script via python3 test.py I got this error:
Traceback (most recent call last):
File "/home/turgut/Desktop/TestDir/Python-Binder-Test/test.py", line 3, in <module>
import test
ImportError: /usr/local/lib/python3.10/dist-packages/python_test-1.0-py3.10-linux-x86_64.egg/test.cpython-310-x86_64-linux-gnu.so: undefined symbol: glfwDestroyWindow
It's not specific to glfwDestroyWindow it says this for all glfw functions. How am I supposed to link this?
Update: I've added these lines:
packages=['glfw'],
package_dir={'glfw': 'lib/glfw'},
#package_data={'glfw': ['lib/glfw/src/*.so']},
package_data={'glfw': ['lib/glfw/src/libglfw.so', "lib/glfw/src/libglfw.so.3", "lib/glfw/src/libglfw.so.3.3"]},
Now it gives me the following error:
ImportError: libglfw.so.3: cannot open shared object file: No such file or directory
Even though I've specified all the .so files together. I don't think this is the way to go but I thought it's worth mentioning.
Better update: I've removed the above update and added these two lines to my extension:
include_dirs=["include", "lib/glfw/include"],
#extra_link_args=[ "-lm", "-lGL", "-lGLU", "-lglfw"],
library_dirs=["lib/glfw"],
libraries=['glfw']
and now I'm getting this error which I think is closer to what I'm looking for:
/usr/bin/ld: cannot find -lglfw: No such file or directory
collect2: error: ld returned 1 exit status
error: command '/usr/bin/x86_64-linux-gnu-g++' failed with exit code 1
from Python/C++ Extension, Undefined symbol error when linking a library
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