build nit for cross build.

[Cherry G. Mathew <cherry%zyx.in@localhost>]

Hi,

I've filed a PR, but it's trivial and annoying - ok to commit ?

http://gnats.netbsd.org/cgi-bin/query-pr-single.pl?number=49750

-- 
Cherry

===================================================================
RCS file: /cvsroot/src/tools/compat/Makefile,v
retrieving revision 1.73
diff -u -r1.73 Makefile
--- Makefile    18 Jan 2015 18:09:10 -0000      1.73
+++ Makefile    17 Mar 2015 09:05:00 -0000
@@ -125,7 +125,7 @@
 
 # Install include files in ${TOOLDIR}/include/compat
 includes: .PHONY ${HOST_INCINSTDIRS} .WAIT ${HOST_INCINSTFILES}
-       @(cd include && find . -name '*.h' -print | while read f ; do \
+       @(cd ${.CURDIR}/include && find . -name '*.h' -print | while read f ; do \
            ${HOST_INSTALL_FILE} $$f ${HOST_INCSDIR}/compat/$$f ; \
        done)