Fixing libdc1394.so.22: cannot open shared object file (ㅠ﹏ㅠ)

#opencv #cmake #ubuntu #libdc1394

libdc1394.so.22 is a library used for camera access in libraries such as OpenCV and is superseded by libdc1394-dev in Ubuntu 24.04. One quick fix is to install libdc1394-dev and create a symbolic link to libdc1394.so.22.

1. Install libdc1394-dev

sudo apt install libdc1394-dev

2. Locate lib installation path

I am no expert and keep forgetting the basics. So I searched for the install path using:

ldconfig -p | grep libdc1394

We might get an output like this:

    libdc1394.so.25 (libc6,x86-64) => /lib/x86_64-linux-gnu/libdc1394.so.25
    libdc1394.so (libc6,x86-64) => /lib/x86_64-linux-gnu/libdc1394.so

3. Create symlink

Usually the linker in Ubuntu searches for .so files in /usr/lib first. So I created a symbolic link in that location:

sudo ln -sf /lib/x86_64-linux-gnu/libdc1394.so /usr/lib/libdc1394.so.22

And voila! The app runs (ಥ◡ಥ)

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