Difference between revisions of "CrossCompilingOsX"

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m (fix link)
(Add bit about procfs, links, packages)
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Install a base system:
 
Install a base system:
  sudo debootstrap --variant=buildd --arch '''amd64''' trusty /var/chroot/ '''http://mirror.url.com/ubuntu/'''
+
  sudo debootstrap --variant=buildd --arch '''amd64''' trusty /var/chroot/ '''mirror.url.com/ubuntu/'''
where '''http://mirror.url.com/ubuntu/''' can be any of [https://launchpad.net/ubuntu/+archivemirrors these mirrors].
+
where '''mirror.url.com/ubuntu/''' can be any of [https://launchpad.net/ubuntu/+archivemirrors these mirrors].
  
 
Now copy your resolv.conf for internet access (required):
 
Now copy your resolv.conf for internet access (required):
 
  sudo cp /etc/resolv.conf /var/chroot/etc/resolv.conf
 
  sudo cp /etc/resolv.conf /var/chroot/etc/resolv.conf
 +
 +
Bind your procfs into the chroot for gnustep:
 +
sudo mount -o bind /proc /var/chroot/proc
  
 
Finally, chroot into your target:
 
Finally, chroot into your target:
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You should now have a working chroot, free for you to destroy as you see fit.
 
You should now have a working chroot, free for you to destroy as you see fit.
 +
(from https://help.ubuntu.com/community/BasicChroot)
  
(from https://help.ubuntu.com/community/BasicChroot)
+
apt-get install sudo nano vim gcc g++
  
 
More coming...
 
More coming...

Revision as of 11:27, 4 June 2014

This is being worked on, please maintain your patience. I have successfully done this before but I don't remember what I did, so I will have to recreate a lot of stuff.

You need:

  • a mind so deadset on cross-compiling you won't stop to think
  • the Xcode .dmg for your target OS X version
  • root access to your build system
  • a good processor and a lot of RAM

I used Ubuntu 14.04 "Trusty Tahr" for doing the initial chroot. The process was as follows:

apt-get install dchroot debootstrap

Then edit /etc/schroot/schroot.conf with your favourite text editor, and add this at the end:

[trusty]
description=Ubuntu Trusty
location=/var/chroot
priority=3
users=your_username
groups=sbuild
root-groups=root

Install a base system:

sudo debootstrap --variant=buildd --arch amd64 trusty /var/chroot/ mirror.url.com/ubuntu/

where mirror.url.com/ubuntu/ can be any of these mirrors.

Now copy your resolv.conf for internet access (required):

sudo cp /etc/resolv.conf /var/chroot/etc/resolv.conf

Bind your procfs into the chroot for gnustep:

sudo mount -o bind /proc /var/chroot/proc

Finally, chroot into your target:

sudo chroot /var/chroot

You should now have a working chroot, free for you to destroy as you see fit. (from https://help.ubuntu.com/community/BasicChroot)

apt-get install sudo nano vim gcc g++

More coming...