Re: [yocto] Environmental variable present in do_compile() {}, bitbake recipe -e, but is missing from do_configure() {} #bitbake

[Quentin Schulz <quentin.schulz@cherry.de>]

Hi Joseph,

On 7/18/25 5:16 PM, joseph.maniaci via lists.yoctoproject.org wrote:
> On Fri, Jul 18, 2025 at 01:43 AM, Gyorgy Sarvari wrote:
> 
>>
>> It goes through the bitbake parser first, and by the time it is
>> executed, it becomes 'export ABC="AAAAAAAAAAAAAAAHHHHHHHHHHHHHHH"' - the
>> original ${ABC} is nowhere to be found, because it's a bitbake variable
>> (just like SRC_URI, for example), not an env var, it was substituted
>> with the literal value of ${ABC}. And before executing that export
>> statement, the ABC env var doesn't exist in the build environment at all.
> 
> Man, considering the quantity of search results telling users to use BB_ENV_PASSTHROUGH_ADDITIONS to accomplish what I'm doing, that really feels like something that should be highlighted in red, and bolded, in the documentation ( https://docs.yoctoproject.org/bitbake/bitbake-user-manual/bitbake-user-manual-ref-variables.html#term-BB_ENV_PASSTHROUGH_ADDITIONS ). Not to mention all of the CMAKE gotchas I've come across.
> 

Don't hesitate to send patches for the docs :)

The more time one spends working with BitBake the more difficult it is 
to write documentation with the "beginner" eye, so this kind of feedback 
and contribution is very much welcome!

Cheers,
Quentin