1/*-
2 * This file is in the public domain
3 */
4
5/*
6 * 6 digits of version.  The most significant are branch indicators at the
7 * time when the last incompatible change was made (which is why it is
8 * presently 6 on 7-current).  The least significant digits are incremented
9 * as described below.  The format is similar to the __FreeBSD_version, but
10 * not tied to it.
11 *
12 * DO NOT CASUALLY BUMP THIS NUMBER!  The rules are not the same as shared
13 * libs or param.h/osreldate.
14 *
15 * It is the version number of the protocol between config(8) and the
16 * sys/conf/ Makefiles (the kernel build system).
17 *
18 * It is now also used to trap certain problems that the syntax parser cannot
19 * detect.
20 *
21 * Unfortunately, there is no version number for user supplied config files.
22 *
23 * Once, config(8) used to silently report errors and continue anyway.  This
24 * was a huge problem for 'make buildkernel' which was run with the installed
25 * /usr/sbin/config, not a cross built one.  We started bumping the version
26 * number as a way to trap cases where the previous installworld was not
27 * compatible with the new buildkernel.  The buildtools phase and much more
28 * comprehensive error code returns solved this original problem.
29 *
30 * Most end-users will use buildkernel and the build tools from buildworld.
31 * The people that are inconvenienced by gratuitous bumps are developers
32 * who run config by hand.  However, developers shouldn't gratuitously be
33 * inconvenienced.
34 *
35 * One should bump the CONFIGVERS in the following ways:
36 *
37 * (1) If you change config such that it won't read old config files,
38 *     then bump the major number.  You shouldn't be doing this unless
39 *     you are overhauling config.  Do not casually bump this number
40 *     and by implication do not make changes that would force a bump
41 *     of this number casually.  You should limit major bumps to once
42 *     per branch.
43 * (2) For each new feature added, bump the minor version of this file.
44 *     When a new feature is actually used by the build system, update the
45 *     %VERSREQ field in the Makefile.$ARCH of all the affected makefiles
46 *     (typically all of them).
47 */
48#define	CONFIGVERS	600018
49#define	MAJOR_VERS(x)	((x) / 100000)
50
51/* Last config(8) version to require envmode/hintmode */
52#define	CONFIGVERS_ENVMODE_REQ	600015
53