On 2023-08-29 16:17, Matthew Wilcox wrote: > Ooh, story time! Long, long ago, we did not separate "Linux headers" > from "libc headers". It used to be somebody's job to take the files > in /usr/src/linux/include/linux and copy them to /usr/include/linux. > Bold people used a symlink. People who cared about things like "Well, > POSIX says that" would edit the files after copying them to remove things > that POSIX said shouldn't be there or put _GNU_SOURCE markers around them. > > At some point, we decided to split the headers to create the uapi headers > to make this job easier. Refinements are, of course, possible, and now > easier than ever, but I think it's fair to say that anybody who included > <linux/elf.h> at any time in history got given a struct dynamic. Thanks for the story! :-) > Well, it's a compile-time failure either way. Code that depended on it > is compiling happily today, and the code that would want to use it > doesn't exist yet, so I'd rather err on the side of keeping code written > in the last 30 years working. Fair enough. Cheers, Alex -- <http://www.alejandro-colomar.es/> GPG key fingerprint: A9348594CE31283A826FBDD8D57633D441E25BB5
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