Re: [meta-intel] intel-media-driver_26.1.0.bb:do_compile fails on master

Hello,

The only solution I could find at present is to shorten the build path.

Cause:

* `intel-media-driver` CMake generates ~626 include directories per compilation unit
* With long paths, the expanded compiler arguments exceed Linux `ARG_MAX`
* GCC expands response files before spawning `cc1plus`, so wrappers/response files don’t help
* This is a kernel limitation, not a Yocto or compiler bug

Impact:

* Fails in Yocto builds with typical CI/workspace paths
* `ENABLE_NONFREE_KERNELS=OFF` does not reduce include count

Workaround:

* Use very short workspace paths (<15–20 characters), e.g. `/w/yocto/...`

Status:

* Upstream issue filed with `intel-media-driver`
* Proper fix requires CMake refactoring upstream
* Path shortening is the only reliable workaround for now

Thanks,
Yogesh
________________________________________
From: Yoann Congal <[email protected]>
Sent: Tuesday, February 3, 2026 2:59 PM
To: Tyagi, Yogesh <[email protected]>
Cc: Yocto ML <[email protected]>
Subject: [meta-intel] intel-media-driver_26.1.0.bb:do_compile fails on master


Hello,

meta-intel/master seems currently broken: intel-media-driver_26.1.0.bb:do_compile fails with:
ninja: fatal: posix_spawn: Argument list too long

This happens on master and also on whinlatter.

We can see this on autobuilder:
https://autobuilder.yoctoproject.org/valkyrie/?#/builders/41
* master: https://autobuilder.yoctoproject.org/valkyrie/?#/builders/41/builds/2967
* whinlatter: https://autobuilder.yoctoproject.org/valkyrie/?#/builders/41/builds/2966

Regards,

-- 
Yoann Congal