git: build - refactor rescue and initrd handling

[Gennady Proskurin]

This breaks buildworld for ordinary non-root user due to vnconfig
calls.

On Fri, Oct 26, 2018 at 06:40:35PM -0700, Matthew Dillon wrote:
> 
> commit 9b724c0dcb2b9548a82d28d97e34375f64668669
> Author: Matthew Dillon <dillon at apollo.backplane.com>
> Date:   Fri Oct 26 18:33:57 2018 -0700
> 
>     build - refactor rescue and initrd handling
>     
>     * buildworld now builds the rescue directory tree and initrd
>       image in /usr/obj.
>     
>     * installworld will install the rescue and initrd stuff if it
>       does not exist on the destination.  If rescue or initrd stuff
>       is already installed, it is not overwritten.
>     
>     * Add 'installrescue' and 'installinitrd' targets.  These will
>       copy the rescue and initrd image built by buildworld.
>     
>     * The normal 'rescue' and 'initrd' targets are unchanged and
>       should build (from scratch) and install the rescue and initrd
>       stuff.
>     
>     * NOTE: crunchgen is currently hacked to add system paths when
>       WORLDBUILD is defined, in order to access native binaries
>       for 'uniq' and a few others, instead of building them in
>       cross-tools.
>     
>       In particular, we have to use the native 'vnconfig' binary
>       as building one in crosstools might not be compatible with
>       the currently running system.  buildworld now uses 'vn' to
>       create the initrd image.
>     
>       Possibly needs some work.
> 
> Summary of changes:
>  Makefile            | 19 +++++++--------
>  Makefile.inc1       | 67 ++++++++++++++++++++++++++++++++++++++++++-----------
>  initrd/Makefile     |  9 +++----
>  initrd/Makefile.inc |  8 +++++++
>  initrd/mkinitrd.sh  |  5 ++++
>  5 files changed, 80 insertions(+), 28 deletions(-)
> 
> http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/9b724c0dcb2b9548a82d28d97e34375f64668669
> 
> 
> -- 
> DragonFly BSD source repository