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Re: Compiling gcc with sysroot

From: Ian Lance Taylor <iant at google dot com>
To: Christer Solskogen <christer dot solskogen at gmail dot com>
Cc: gcc-help at gcc dot gnu dot org
Date: Mon, 05 Dec 2011 16:15:05 -0800
Subject: Re: Compiling gcc with sysroot
References: <jbdjvm$ac3$1@dough.gmane.org> <mcrmxb6pwvk.fsf@dhcp-172-18-216-180.mtv.corp.google.com> <jbjf14$l36$1@dough.gmane.org>

Christer Solskogen <christer.solskogen@gmail.com> writes:

>> You should not normally use it
>> when building a cross-compiler.
>>
>
> Can you elaborate on why?

The "it" in the quoted sense refers to using the same value for --prefix
and --with-sysroot.  The reason that is not normally done for a
cross-compiler is that --with-sysroot refers to the root tree of a
target system, directories like /usr/bin and /usr/include.  The programs
found in /usr/bin are programs that run on the target system.  It does
not make sense to install a (normally built) cross-compiler there,
because the cross-compiler would not run on the target system.

Ian

References:
- Compiling gcc with sysroot
  - From: Christer Solskogen
- Re: Compiling gcc with sysroot
  - From: Ian Lance Taylor
- Re: Compiling gcc with sysroot
  - From: Christer Solskogen

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