Add library to cross compile RPi4

Creatorczyk

I downloaded from GitHub and built "realsense" library directly on raspberry pi 4. I noticed that the library has built itself in the "build" folder. I found in it, among others:
librealsense2.so
librealsense2.so.2.39
librealsense2.so.2.39.0

Do I want to be able to use these libraries when cross compiling it is enough if I just move these three libraries to the "usr / lib" folder on raspberry and then run rsync on my ubuntu?

SGaist

Hi,

The usual way is to call "make install" after a successful build.

Creatorczyk

@SGaist I already did "make install" and it didn't add librealsense2.so to the "usr / lib" path

SGaist

When calling that you usually see in the terminal where it has been installed.

Since it's a custom library I would guess it went to /usr/local/lib

Creatorczyk

@SGaist You're right. I found these libraries in "/usr/local/lib". Now how do I move these libraries to my sysroot on ubuntu? When at the beginning of setting up the environment, folder sync I did:

rsync -avz pi@raspberrypi_ip:/lib sysroot
rsync -avz pi@raspberrypi_ip:/usr/include sysroot/usr
rsync -avz pi@raspberrypi_ip:/usr/lib sysroot/usr
rsync -avz pi@raspberrypi_ip:/opt/vc sysroot/opt

but there is no "/usr/local/lib" path here. Is it enough if I make a new folder and sync it? e.g

rsync -avz pi@raspberrypi_ip:/usr/local/lib sysroot/local/lib

jsulm

@Creatorczyk said in Add library to cross compile RPi4:

Is it enough if I make a new folder and sync it? e.g

Should be. Did you try?
But you should change to:

rsync -avz pi@raspberrypi_ip:/usr/local/lib sysroot/usr/local

You also should sync /usr/local/include to be able to cross compile.