Cross compiler questions

[Kai Ruottu]

Let's elaborate, simple things are the most hard to grok, the nature law 
called entropy states that
the world goes towards more disorder, to more complicated systems all 
the time :(

On 19.3.2010 11:30, Kai Ruottu wrote:
> Please read the "Prerequisites" in "Install"
>
> http://gcc.gnu.org/install/prerequisites.html
>
> and you will see that what you are claiming is pure bullshit!  A cross 
> compiler as default requires
> only one build stage, if you see something else claimed elsewhere, 
> please don't believe it!

"Bootstrap" in a native GCC builld is a 3-stage process, a cross GCC 
build doesn't use it!

> If one wants Java, then  a 2-stage build process is obligatory :
>
> "If the cross compiler is to be built with support for the Java 
> programming language and the
>  ability to compile .java source files is desired, the installed 
> native compiler used to build the
>  cross compiler needs to be the same GCC version as the cross 
> compiler. In addition the
>  cross compiler needs to be configured with --with-ecj-jar=.... "

The first build stage would be to build a native "boostrap GCC" from the 
same sources and
then use this "stage 1" GCC to build the cross GCC, this being the 
"stage 2"...