[RFC] Is it okay to just use GNU extensions or should an alternative be provided too?

[Felix Zielcke]

I just talked with Marco on IRC.

I have just used asprintf in one of my patches, but now I discovered:
http://grub.enbug.org/BuildingOnNonGnu

So I became a bit unsure now if it's okay to just use asprintf.

Is it okay to just use and don't care about enviroments which don't
use/have glibc?

Or should such GNU extentions just not be used if they can be avoided?

I doubt it would be good to use many `#ifdef _GNU_SOURCE' in the code.