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Date: Sat, 30 Dec 2023 10:31:29 +0100
From: Felix Mellmann <flix.yocto@benfm.de>
To: yocto@lists.yoctoproject.org
Subject: icecc support broken?
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Hi,

to speed up the build process I would like to use icecc as described in 
the manual (https://docs.yoctoproject.org/singleindex.html#icecc). When 
using Yocto 4.3.1 this leads to an error while parsing the recipes:

ERROR: /Yocto/poky/meta/recipes-core/meta/target-sdk-provides-dummy.bb: 
no-pn NULL prefix
WARNING: 
/Yocto/poky/meta/recipes-core/meta/target-sdk-provides-dummy.bb: 
Exception during build_dependencies for set_icecc_env
WARNING: 
/Yocto/poky/meta/recipes-core/meta/target-sdk-provides-dummy.bb: Error 
during finalise of 
/Yocto/poky/meta/recipes-core/meta/target-sdk-provides-dummy.bb

I bisected this problem down to poky commit 3be00a (bitbake.conf: Add 
BB_HASH_CODEPARSER_VALS). Since then the problem seem to exist.
And voila when I remove "PN=no-pn" from BB_HASH_CODEPARSER_VALS in 
bitbake.conf or add

BB_HASH_CODEPARSER_VALS:remove = "PN=no-pn"

to my local.conf the recipes get parsed again and the build starts. 
Currently I'm building a vanilla yocto-4.3.1 core-image-full-cmdline for 
qemu using icecc and see if other problems are arising.

Actually I'm not able to tell what BB_HASH_CODEPARSER_VALS does and 
what's the outcome of removing this entry. But this issue shall be 
either fixed or documented within the manual.

Is icecc and the support within oe/yocto still actively maintained or is 
there any superior mechanism I'm not yet aware of?

Best regards,
Felix