make buildworld failed at bootstrap stage

[Alexey Slynko <slynko@xxxxxxxxx>]

Hi,

i've changed the content of sys/select.h last night
Then make builworld failed with this diagnostic:

===> usr.bin/vi (bootstrap-tools)

. .. skip some info....

cc -O -pipe -mtune=pentiumpro -DGTAGS -DSYSV_CURSES 
-I/home/slynko/src/usr.bin/vi 
-I/home/slynko/src/usr.bin/vi/../../contrib/nvi 
-I/home/slynko/src/usr.bin/vi/../../contrib/nvi/include 
-I/home/slynko/src/usr.bin/vi/../../contrib/nvi/vi    -c 
/home/slynko/src/usr.bin/vi/../../contrib/nvi/cl/cl_bsd.c
cc -O -pipe -mtune=pentiumpro -DGTAGS -DSYSV_CURSES 
-I/home/slynko/src/usr.bin/vi 
-I/home/slynko/src/usr.bin/vi/../../contrib/nvi 
-I/home/slynko/src/usr.bin/vi/../../contrib/nvi/include 
-I/home/slynko/src/usr.bin/vi/../../contrib/nvi/vi    -c 
/home/slynko/src/usr.bin/vi/../../contrib/nvi/cl/cl_funcs.c
cc -O -pipe -mtune=pentiumpro -DGTAGS -DSYSV_CURSES 
-I/home/slynko/src/usr.bin/vi 
-I/home/slynko/src/usr.bin/vi/../../contrib/nvi 
-I/home/slynko/src/usr.bin/vi/../../contrib/nvi/include 
-I/home/slynko/src/usr.bin/vi/../../contrib/nvi/vi    -c 
/home/slynko/src/usr.bin/vi/../../contrib/nvi/cl/cl_main.c
cc -O -pipe -mtune=pentiumpro -DGTAGS -DSYSV_CURSES 
-I/home/slynko/src/usr.bin/vi 
-I/home/slynko/src/usr.bin/vi/../../contrib/nvi 
-I/home/slynko/src/usr.bin/vi/../../contrib/nvi/include 
-I/home/slynko/src/usr.bin/vi/../../contrib/nvi/vi    -c 
/home/slynko/src/usr.bin/vi/../../contrib/nvi/cl/cl_read.c
In file included from 
/home/slynko/src/usr.bin/vi/../../contrib/nvi/cl/cl_read.c:19:
/usr/include/sys/select.h:50: error: field `si_note' has incomplete type
*** Error code 1

So, why it uses select.h from /usr/include, and doesn't use new version ?