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Re: Autoconf and a bare-metal host with no C library

From: Russell Shaw
Subject: Re: Autoconf and a bare-metal host with no C library
Date: Fri, 14 Oct 2016 01:24:22 +1100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Icedove/38.1.0

On 13/10/16 13:11, Luca Saiu wrote:

> So, what I'm asking you is: does a clean solution exist, or compiling
> without a runtime library is just not supported by the Autotools?  It
> sounds weird to say that for configuring you need a cross-compiler with
> support for a runtime that will never even be linked when building.
> Shouldn't there be, at least, one variant of AC_PROG_CC which doesn't
> fail in a fatal way?
> I'm not yet linking the code in a public forum just because it still
> lacks copyright and license headers; but in case it were useful to you,
> even if I doubt it, I can clean it up and publish it.

It can be messy and take quite some time to figure out what to do, but this kind of stuff is handled in the autoconf/automake/autogen build system of binutils and gcc. Not a quick and easy path for the uninitiated though.

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