[Too]

I think that “generally” is targeting average programmers.

Programming language authors, writing their own stdglibbabbyscript, are exempt from that warning? That’s of course a big task nobody wants to do so many of them just piggyback on glibc with thin wrappers.

[BatmanAoD]

Well, yeah. Hence the rest of my comment. And if you don't go through glibc, then you still must follow the C ABI rules (since that's the only thing the kernel understands), and you are at risk of having your calls break when the kernel is updated (it's already been mentioned elsewhere in these comments that this actually happened to Go on Mac).