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Date: Mon, 13 Feb 2023 02:16:17 -0600
From: Segher Boessenkool <segher@kernel.crashing.org>
To: Christer Solskogen <christer.solskogen@gmail.com>
Cc: gcc-help@gcc.gnu.org
Subject: Re: Problem cross-compiling gcc
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On Sun, Feb 12, 2023 at 06:51:06PM +0100, Christer Solskogen via Gcc-help wrote:
> While cross compiling gcc with musl I see this:

> This is the configure line: /home/solskogen/gcc/configure --prefix=/usr 
> --libexecdir=/lib --host=aarch64-centrix-linux-musl 
> --target=aarch64-centrix-linux-musl --build=x86_64-pc-linux-gnu 
> --enable-languages=c,c++ --disable-multilib --enable-checking=release 
> --disable-nls --with-gcc-major-version-only --enable-plugin 
> --disable-libstdcxx-pch --enable-default-pie --enable-default-ssp 
> --disable-libsanitizer --enable-host-shared

That is not a cross-compiler, you are building a cross-built native
compiler here (host=target).  To do that you already need a working
cross-compiler, so it is probably not what you intended to do.

To build a cross-compiler you should not normally give any --build= or
--host=, and instead use what is auto-detected for that.  You'll end up
with build=host: a cross-compiler.


Segher