On Friday 28 September 2001  3:43 am, Todd Vierling wrote:
> On Fri, 28 Sep 2001, Geoff Wing wrote:
> : 1) wipe out all your installed include files (but not the dir hierarchy)
>
> You will not be able to do this with DESTDIR=/ (or DESTDIR unset) in the
> new toolchain.  The reason is that you need include files in order to
> compile the host tools using the existing libc and includes.
>
> Solution: don't nuke your includes if you will be building in-place.  Let
> the later "make includes" step overwrite them instead.  I'll note this to
> be documented.

But it only overwrites them if the new include file is newer, in some cases 
(don't know of any specifically) the include file from 1.5.x is newer because 
it's had pullups from -current.  Hence there's a necessity to wipe the 
include files.  Perhaps it should be a new make option.

WIPEINCLUDESDIR - If set to YES after building the tools (which require 
headers to match the installed libs)  The build system will wipe the 
${DESTDIR}/usr/include dir, run mtree again to setup the dir structure. Then 
run make includes.  Only needed/recommended if coming from a release branch 
to -current.  If not set the make system will not wipe and mtree the 
${DESTDIR}/usr/include dir.

Chris