flet-desktop-light dependancy on librive_common_plugin.so

[michep]

Hello,

is it really necessary for flet-desktop-light to be depenant on librive_common_plugin.so even without flet-rive package installed?

Issue is that Im trying to run flet app on specific linux distro and having errors:

.flet/bin/flet-0.26.0/flet/flet: /lib/x86_64-linux-gnu/libm.so.6: version `GLIBC_2.29' not found (required by .flet/bin/flet-0.26.0/flet/lib/librive_common_plugin.so)

.flet/bin/flet-0.26.0/flet/flet: /lib/x86_64-linux-gnu/libstdc++.so.6: version `GLIBCXX_3.4.29' not found (required by .flet/bin/flet-0.26.0/flet/lib/librive_common_plugin.so)

So, this librive_common_plugin.so looking for libs, which can not be updated for now, but I dont even use rive in my app

[PopkovS]

I had a similar issue running Flet in desktop mode on older Linux distributions, and I think I found a temporary solution.

Background:

My Flet version:

(.venv) [root@localhost 07:24 flet] # pip list | grep flet
flet                  0.27.6
flet-desktop-light    0.27.6
flet-web              0.27.6

(I intentionally did not install flet-rive.)

My application is designed to run in desktop mode (ft.AppView.FLET_APP).

In my project, I redirected the search path for Flet client files for convenience:

flet_inner_path = os.path.join(os.path.dirname(os.path.abspath(__file__)), "flet_client", "flet-0.27.6", "flet")
os.environ["FLET_VIEW_PATH"] = flet_inner_path

At this path, I extracted the archive:
.venv/lib/python3.11/site-packages/flet_desktop/app/flet-linux-amd64.tar.gz

I noticed that the binary still requires librive_common_plugin.so:

[root@localhost 11:05 flet] # ldd flet_client/flet-0.27.6/flet/flet | grep librive
    librive_common_plugin.so => /home/user/PycharmProjects/flet/flet_client/flet-0.27.6/flet/lib/librive_common_plugin.so (0x00007f1198b16000)

This librive_common_plugin.so depends on GLIBC_2.29 and GLIBCXX_3.4.29.

Temporary Solution:

After some research, I did the following:

• I found the oldest Linux system I had (CentOS 7 in my case, but the key requirement is having gcc).
• Created a file rive_stub.c with the following content:

  #include <stdio.h>
  
  void rive_plugin_register_with_registrar(void* registrar) {
      printf("Rive plugin stub: registered (doing nothing)\n");
  }

• Compiled it:

  gcc -shared -fPIC -o librive_common_plugin.so rive_stub.c

• This generated the shared library file:

  ldd librive_common_plugin.so

• I replaced the problematic library in my case:
  flet_client/flet-0.27.6/flet/lib/librive_common_plugin.so

Now everything seems to work fine—Flet applications can run in desktop mode on older Linux distributions.

[michep]

Wow! Thats what they call "костыль" :)