Revision 312827 fatal error: 'opt_printf.h' file not found

Hello,

patch:

Index: sys/cam/cam_xpt.h
===================================================================
--- sys/cam/cam_xpt.h   (revision 312851)
+++ sys/cam/cam_xpt.h   (working copy)
_at__at_ -33,7 +33,10 _at__at_
 #define _CAM_CAM_XPT_H 1

 #include <sys/cdefs.h>
+
+#ifdef _KERNEL
 #include "opt_printf.h"
+#endif  /* _KERNEL */

Please take a look at the rev 312827:

--- scsi_da.o ---
cc -target x86_64-unknown-freebsd12.0 --sysroot=/export/freebsd/obj/export/freebsd/src/tmp -B/export/freebsd/obj/export/freebsd/src/tmp/usr/bin  -O2 -pipe -I/export/freebsd/src/lib/libcam -I/export/freebsd/src/sys   -DNDEBUG -MD  -MF.depend.scsi_da.o -MTscsi_da.o -std=gnu99 -fstack-protector-strong -Wsystem-headers -Wall -Wno-format-y2k -Wno-uninitialized -Wno-pointer-sign -Wno-empty-body -Wno-string-plus-int -Wno-unused-const-variable -Wno-tautological-compare -Wno-unused-value -Wno-parentheses-equality -Wno-unused-function -Wno-enum-conversion -Wno-unused-local-typedef -Wno-switch -Wno-switch-enum -Wno-knr-promoted-parameter  -Qunused-arguments  -c /export/freebsd/src/sys/cam/scsi/scsi_da.c -o scsi_da.o
--- scsi_all.o ---
In file included from /export/freebsd/src/sys/cam/scsi/scsi_all.c:59:
/export/freebsd/src/sys/cam/cam_xpt.h:36:10: fatal error: 'opt_printf.h' file not found
#include "opt_printf.h"
        ^

Thank you!

Alex Deiter
alex.deiter_at_gmail.com