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Date: Thu, 29 Jan 2009 19:04:21 -0500
Message-Id: <200901300004.n0U04LqF002047@envy.delorie.com>
From: DJ Delorie <dj AT delorie DOT com>
To: djgpp AT delorie DOT com
In-reply-to: 
	<66f4d58f-5bb6-4af7-bea4-793f4b2ad735 AT n21g2000vba DOT googlegroups DOT com>
	(message from Rugxulo on Thu, 29 Jan 2009 14:59:33 -0800 (PST))
Subject: Re: 1] UNIX/LINUX Compilation 2] IDE
References: <0KE70056UYX26YR0 AT mta2 DOT srv DOT hcvlny DOT cv DOT net> <200901291546 DOT n0TFkH4Z006381 AT envy DOT delorie DOT com> <66f4d58f-5bb6-4af7-bea4-793f4b2ad735 AT n21g2000vba DOT googlegroups DOT com>
Errors-To: nobody AT delorie DOT com


> Yes, you can cross-compile to ELF, but I guess DJ means the
> difficult part is linking, esp. shared libraries or more complex
> stuff like that.

Yes.  You have to build what is essentially a "sys-root" - all the
headers, libraries, etc from the target linux system.  Then you build
a cross-gcc, cross-binutils, etc.  *Then* you start building your own
programs.

> Of course, the only ELF-based tools I know of were Daniel Borca's
> DJGPP/ELF,

That's a native ELF.  For cross-ELF it's a lot simpler (in theory),
just build gcc+binutils for whatever target you want; the gcc
executables themselves remain plain DJGPP programs, they just
*produce* non-djgpp programs.

> As far as Linux distros, DJ should've been more specific (or else
> maybe you can tell us what you want?).

I don't have to be specific, pretty much all Linux distros these days
are at least mostly LSB compliant, which means they all have about the
same degree of difficulty cross-compiling.  Of course, I'm talking
about mainstream distros, like Fedora or Debian.  The custom tiny ones
(like OpenWRT) usually come with their own development sys-root.