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Recognize a %VERSREQ=nnnnn string in the system Makefile. Both config(8)

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and the kernel will have a 'config interface version number'.  If an
incompatable change is made to the kernel that requires a rebuild of
config(8) (such as the cam devtab stuff), then the version number would be
bumped in both places.  If a user neglects to rebuild config, then they
will get a nagging (but non-fatal) warning that they need to rebuild
config.
This commit is contained in:
Peter Wemm 1997-10-22 00:38:48 +00:00
parent baa42bb2cc
commit 463fb43b0a
2 changed files with 22 additions and 2 deletions
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11
usr.sbin/config/configvers.h Normal file
View File

@ -0,0 +1,11 @@
/*
* 6 digits of version. The most significant are branch indicators
* (eg: RELENG_2_2 = 22, -current presently = 30 etc). The least
* significant digits are incremented for each incompatable change.
*
* The numbering scheme is inspired by the sys/conf/newvers.sh RELDATE
* and <osreldate.h> system.
*
* $Id$
*/
#define CONFIGVERS 300002

13
usr.sbin/config/mkmakefile.c
View File

@ -36,7 +36,7 @@
static char sccsid[] = "@(#)mkmakefile.c 8.1 (Berkeley) 6/6/93";
#endif
static const char rcsid[] =
"$Id$";
"$Id: mkmakefile.c,v 1.22 1997/09/15 06:37:09 charnier Exp $";
#endif /* not lint */
/*
@ -51,6 +51,7 @@ static const char rcsid[] =
#include <string.h>
#include "y.tab.h"
#include "config.h"
#include "configvers.h"
#define next_word(fp, wd) \
{ register char *word = get_word(fp); \
@ -162,6 +163,7 @@ makefile()
struct opt *op;
struct users *up;
int warn_make_clean = 0;
int versreq;
read_files();
strcpy(line, "Makefile.");
@ -242,7 +244,14 @@ makefile()
do_load(ofp);
else if (eq(line, "%CLEAN\n"))
do_clean(ofp);
else
else if (strncmp(line, "%VERSREQ=", sizeof("%VERSREQ=") - 1) == 0) {
versreq = atoi(line + sizeof("%VERSREQ=") - 1);
if (versreq != CONFIGVERS) {
fprintf(stderr, "WARNING: version of config(8) does not match kernel!\n");
fprintf(stderr, "config version = %d, ", CONFIGVERS);
fprintf(stderr, "version required = %d\n", versreq);
}
} else
fprintf(stderr,
"Unknown %% construct in generic makefile: %s",
line);