pussuw commented on PR #6197:
URL: https://github.com/apache/incubator-nuttx/pull/6197#issuecomment-1117420539
> @pussuw there seem to be some warnings:
>
> ```
> stdlib/lib_cxa_atexit.c:83:13: error: '__cxa_callback' defined but not
used [-Werror=unused-function]
> ```
>
> CI turns warnings into errors, I don't know if you do that too, but you
can with: `make EXTRAFLAGS="-Werror"`.
>
> (there are some `make[3]: arm-nuttx-eabi-gcc: Command not found` as well,
there is an issue with the script apparently, please ignore it for now.)
I always fix warnings but I don't get this warning locally. But yes, it is
due to this:
```
#if !defined (CONFIG_BUILD_FLAT)
return __atexit_register(ATTYPE_CXA, (void (*)(void))func, arg, NULL);
#elif defined (CONFIG_SCHED_ONEXIT)
```
The first ifded leaves the second branch which refers to __cxa_callback
masked. I think the fix is to wrap the definiton of __cxa_callback with
!CONFIG_BUILD_FLAT. I'll fix that tomorrow.
The other build error which I listed above is way beyond my understanding.
The make recipe works locally for the targets that fail in CI.
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