ccache and DESTDIR for ports?

Gabor Kovesdan gabor at
Sun Oct 21 13:12:25 PDT 2007

Erik Cederstrand escribió:
> Hi!
> I'm installing a small set of ports into lots of jails, using the 
> DESTDIR support recently added to the ports system. Each jail contains 
> a unique CVS revision of FreeBSD. I'd like to speed up compiles by 
> using ccache, but as I understand it, I'll have to install ccache into 
> each jail since the DESTDIR implementation chroot's into the jail.
Yes, probably you will have to do so.
> Can I install ccache in each jail first and simply hardlink 
> /somejail/root/.ccache to /root/.cache before continuing compiling the 
> other ports? Or is that asking for trouble, since each jail might have 
> a different gcc installed?
I have to admit, that I haven't used ccache so far, thus I don't know if 
it's just a wrapper before any GCC version or it is linked strictly or a 
specific version. If you compile ccache in each jail and set up the 
environment variables precisely (CC, CFLAGS, whatever you need), you 
must succeed.
As for hardlinks, I don't know what to except in general, if you have to 
pull in something to a jail, I recommend nullmounting. This can easily 
be done with DESTDIR_MOUNT_LIST, take a look at the documentation of


Gabor Kovesdan
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