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Date: Sat, 1 Feb 2003 20:32:53 -0500
From: Christopher Faylor <cgf AT redhat DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: cross compiling
Message-ID: <20030202013253.GA22893@redhat.com>
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References: <555055656 DOT 20030201135553 AT huno DOT net> <1044144678 DOT 29443 DOT 6 DOT camel AT milo> <037801c2ca51$270a1890$a65086d9 AT webdev>
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On Sun, Feb 02, 2003 at 12:21:22AM -0000, Elfyn McBratney wrote:
>Sorry, could not be arsed to reformat this... :-)
>
>Im pretty sure, it makes sense to me and kinda confirmed in the mknetrel
>script, that Chris (cgf) uses cross gcc, binutils and maybe more that are
>targetted for i{3,4,5,6?}86-pc-cygwin... So you'd need to compile at very
>least a cross-compiler for cygwin.

Yes, I use a linux x cygwin gcc+binutils for all of my cygwin work.  That's
sort of stock in trade for my division of Red Hat (the division formerly
known as Cygnus).

I use the "uberbaum" repository to check out everything in one tree:

cvs -d :pserver:anoncvs AT sources DOT redhat DOT com:/cvs/uberbaum login
cvs -d :pserver:anoncvs AT sources DOT redhat DOT com:/cvs/uberbaum co .

This is the configure line I used to build everything:

  /path/to/source/configure --target=i686-pc-cygwin --build=i686-pc-linux \
    --host=i686-pc-linux --prefix=/somewhere --disable-nls \
    --enable-languages=c++ --enable-sjlj-exceptions

And then use:
  make all install

To install it.

This creates i686-pc-cygwin-gcc, i686-pc-cygwin-ld, i686-pc-cygwin-as, etc.
that are used to build cygwin.

There is a mailing list for discussing cross gcc:
crossgcc AT sources DOT redhat DOT com.

Before someone asks, I built the cross compiler myself, I'm not willing
to make it available for general distribution, and I'm not willing to
act as a mentor to other enterprising souls who want to do the same
thing.  There are surely web sites out there which deal with this issue.

cgf

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