While compiling i386 kernel from about week ago ...

cc1: warnings being treated as errors
../../../../kern/subr_prf.c: In function `panic':
../../../../kern/subr_prf.c:126: warning: unknown conversion type character `:' in format
../../../../kern/subr_prf.c:126: warning: too many arguments for format

line 126 was:
       printf("panic: %:\n", fmt, ap);

I've changed it to make it compile somehow ( %: -> %s: %s) but got

cc1: warnings being treated as errors
../../../../dev/isa/wd.c: In function `wderror':
../../../../dev/isa/wd.c:1782: warning: unknown conversion type character `b' in format
../../../../dev/isa/wd.c:1782: warning: unknown conversion type character `b' in format
../../../../dev/isa/wd.c:1782: warning: too many arguments for format

lines around 1782:
        } else
                printf("%s: %s: status %b error %b\n", wdc->sc_dev.dv_xname,
                    msg, wdc->sc_status, WDCS_BITS, wdc->sc_error, WDERR_BITS);
}

Sometimes in November Jason wrote about move to bitmask_snprintf() and effort
to get rid of %:, %b in kernel's printf(). So these are remains ?

Jarda

P.S.  to see options - typical compile line looks like:
cc  -O2 -Werror -Wall -Wmissing-prototypes -Wstrict-prototypes -I. -I../../../../arch -I../../../.. -nostdinc -DSWAPPAGER -DVNODEPAGER -DDEVPAGER -DEXEC_AOUT -DEXEC_SCRIPT -DI486_CPU -DI586_CPU -DI686_CPU -DVM86 -DDUMMY_NOPS -DXSERVER -DUCONSOLE -DINSECURE -DDDB -DDIAGNOSTIC -DKTRACE -DSYSVMSG -DSYSVSEM -DSYSVSHM -DCOMPAT_NOMID -DCOMPAT_11 -DCOMPAT_12 -DCOMPAT_43 -DCOMPAT_LINUX -DCOMPAT_FREEBSD -DEXEC_ELF32 -DUSER_LDT -DFFS -DNFS -DCD9660 -DMSDOSFS -DFDESC -DKERNFS -DNULLFS -DPROCFS -DQUOTA -DFIFO -DINET -DMAXUSERS=32 -D_KERNEL  -Di386  -c ../../../../kern/subr_prf.c

-- 
Jaromir Dolecek             	ICS MU, Botanicka 68A, Brno, 60200, Czech Rep.
dolecek@ics.muni.cz			Tel.: +42-5-4151 2266
http://www.ics.muni.cz/~dolecek/
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It is better never to have been born.  But who among us has such luck?
One in a million, perhaps.