[patch] Bugs in install_headers

[Joseph S. Myers]

On Sat, 11 Feb 2006, Mike Frysinger wrote:

> right, the reason i added that bit of code in the first place was that i 
> typically use for my cross compilers:
> KERNEL_SOURCE=/usr/mytarget/
> DEVEL_PREFIX=/usr/mytarget/
> so i'll add the updated test i mentioned in the previous e-mail

But do you also use nonempty PREFIX with this configuration?  If so, how 
do the headers get into $(PREFIX)$(DEVEL_PREFIX)?  If not, 
$(PREFIX)$(DEVEL_PREFIX) is the same as $(DEVEL_PREFIX).

-- 
Joseph S. Myers
joseph at codesourcery.com