K 10
svn:author
V 6
kevans
K 8
svn:date
V 27
2020-01-29T18:50:55.991641Z
K 7
svn:log
V 566
kmod build: start generating opt_global.h, include it

For untied module builds, we'll generate opt_foo headers if they're included
in SRCS. However, options that would normally be represented in opt_global.h
aren't properly represented.

Start generating opt_global.h with #define VIMAGE for !mips since it's
almost universally a project default and right now kmods must hack it in
themselves in order to be properly compiled for the default kernel. For
example, ^/sys/modules/pf/Makefile

Reviewed by:	imp
Differential Revision:	https://reviews.freebsd.org/D23345

END