Provide replacement function for strerror_l()

[ffontaine]

strerror_l() is not implemented in some C libraries, such as uClibc, so let's provide a simple replacement function that falls back on strerror().

Signed-off-by: Thomas Petazzoni [email protected]
[Retrieved from: https://git.buildroot.net/buildroot/tree/package/libblockdev/0001-Provide-replacement-function-for-strerror_l.patch]
Signed-off-by: Fabrice Fontaine [email protected]

[blivetghoul]

Can one of the admins verify this patch?

[tbzatek]

Interesting, thanks for the patch. However this is not a direct replacement since it handles locales differently - we use it to return non-localized string. Is there anything similar available in uClibc? Alternatively, this might be backported from other libc implementations.

Out of curiosity, is there anything else missing for successful libblockdev compilation?

[ffontaine]

To my knowledge, there is nothing similar in uclibc-ng. strerror_l declaration was added back in 2012 with wbx-github/uclibc-ng@0769334 but it was never implemented. It should also be noted that locale support can also be disabled by the user in uclibc-ng. Indeed, this feature isn't really needed on embedded systems.

Finally, this patch was the only one needed to integrate libblockdev in buildroot in 2020.

[tbzatek]

To me it looks like an issue that should be fixed on uclibc side.

Further inspiration, not sure how do they handle uclibc though: https://lists.infradead.org/pipermail/libnl/2016-August/002193.html