On Tue, 1 May 2001, John Clark wrote:

> Ben Harris wrote:
>
> > In article <4.3.2.7.2.20010430174803.00b91988@mail.larwe.com> you write:
> > >I'm currently developing with arm-elf-gcc under Cygwin (so yes I have CVS).
> > >Would it be easier to work under x86 Linux (I don't want to try to install
> > >NetBSD on my main dev machine unless I absolutely have to)?
> >
> > For building the kernel, I suspect either will work, but Linux is likely to
> > be slightly easier, since it's rather more Unix-like.  You basically need
> > the NetBSD make(1) and config(8), both of which should build on any POSIX
> > system, and the GNU toolchain.  For building kernels, the unmodified GNU
> > tools targetted on arm-unknown-elf should work correctly (that being the
> > toolchain NetBSD/arm26 used for a long time).
>
> About a month ago I tried this on a redhat linux distribution and got
> a number of 'missing this, missing that' errors, and did some amount
> of fix ups to fill in those blanks. Unfortunately time at the moment
> does not permit me to continue, but it is not exactly unbundle
> the standard base set of sources and 'make world', even with bsdmake...

That was why I only mentioned building the kernel.  Building userland on a
non-BSD system is tricky.  Currently, it's not even possible to compile a
NetBSD-current userland on NetBSD 1.5 without replacing several tools with
newer versions.

> For example a list of missing items:
>
> ls -l /usr/dev*/arm/cross/bin
> total 176
> -rwxrwxr-x    1 root     root       136249 Apr  1 04:36 bmake
> -rwxr-xr-x    1 root     root         5626 Apr  1 06:45 install
> -rwxr-xr-x    1 root     root         5626 Apr  1 06:45 install-sh
> -rwxrwxr-x    1 root     root        19027 Apr  1 06:41 mtree
> lrwxrwxrwx    1 root     root           14 Apr  1 08:00 yacc -> /usr/bin/bison

Any useful GNU/Linux system should have GNU install (part of Shellutils,
ISTR) and GNU Bison symlinked to yacc.  mtree isn't necessary for building
the kernel (or make or config).

> The include directory is a compile till crash collection of include
> files which are required.

Not for the kernel.  It gets the necessary files directly from sys/sys and
arch/include.

> If of  course there is some niffty way to do this, I'd be interested....

Not for the userland.  Luckily, it shouldn't need any changes for a new
port on a supported CPU, so you should be able to get away with using a
binary snapshot.

Actually, I have a feeling Zoularis works on Linux now, but I've not
looked into it in any detail.

-- 
Ben Harris                                                   <bjh21@netbsd.org>
Portmaster, NetBSD/arm26               <URL:http://www.netbsd.org/Ports/arm26/>