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Date: Fri, 19 Nov 2021 10:16:30 +1100
From: Matt Andrews <>
To: Rich Felker <>
Subject: Re: Why does musl require another libc to be built (noob question)

So if there is no dependency on another libc, then the only ‘dependency’
musl would have is some compiler runtime?

I see in the source there is a ‘crt’ folder. Is that musl’s compiler

On Fri, 19 Nov 2021 at 09:31, Matt Andrews <> wrote:

> Oh. I read somewhere that some syscalls like abort require an
> implementation that is picked up from some other libc.
> On Fri, 19 Nov 2021 at 08:40, Rich Felker <> wrote:
>> On Fri, Nov 19, 2021 at 08:28:54AM +1100, Matt Andrews wrote:
>> > Lately I’ve been trying to cross compile musl with clang. It’s been a
>> > really interesting process and everyone on this list has been really
>> > helpful.
>> >
>> > I hope this isn’t too much of a silly question, but there’s a missing
>> piece
>> > to my understanding of the standard library and that is why you need
>> > another libc to build it. I assumed that it is a self contained thing,
>> > everything else depends on it.
>> >
>> > I’m sure there are very good reasons for needing another standard
>> library
>> > to build musl, but I’m not sure what they are and if anyone could let me
>> > know that would greatly appreciated.
>> It doesn't and I'm not sure where you got that idea. Can you explain
>> what you mean?
>> Rich

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