GLIBC version for linux?

[openaudible]

This is such a cool project. I used it to build binaries, but got a report from centos 8 user with the following error launching:

/lib64/libm.so.6 version 'GLIBC_2.29' not found, required by /test/ffprobe.

Here is a test to reproduce using your binaries (which is supposed to print the ffmpeg -version message) (put ffmpeg binary in same directory as dockerfile) :

Dockerfile

from centos:8
workdir /test
copy ffmpeg /test/
run ./ffmpeg -version

then build the above docker file, which should fail with the above error:

docker build .

I am working on a fix, but thought I'd give you a heads up.

It appears that the correct thing to do is download an earlier version of glibc and link against that.. but not sure, as I'm not a C guy.

Also, your donate page is 404 on your web page, which is linked on this github page under Sponsor this project.

And a feature request would be to build a fat binary mac aarch_64/arm64.

[wdlkmpx]

When compiling a (somewhat) portable program you must use the oldest possible distro

If ffmpeg compiles OK with Centos 7 then you should use centos 7

Otherwise you'll see errors like that, it just means that compiled apps require a newer glibc version than the one installed

[lalinsky]

You need to build on the oldest possible distro.

For my use case, I used to build on Ubuntu 18.04, which has a very old glibc and I've not heard of any problems running fpcalc. I've upgraded to Ubuntu 20.04 last year, essentially removing support for CentOS 7/8, but that's OK for me.

[openaudible]

Ah. Thanks for the quick reply. Will try that approach and will reply with whatever solution we come up with. Thanks!