*: upgrade to 10.1 as a bulk commit

Taken from: freebsd.git@29f4af53a2c8248b634f48923da8eb35f5ed0515

MAINTAINERS

@@ -82,7 +82,6 @@ binutils	obrien	Insists on BU blocked from unapproved commits
 file		obrien	Insists to keep file blocked from other's unapproved
 			commits
 contrib/bzip2	obrien	Pre-commit review required.
-lukemftpd	obrien	Pre-commit review required.
 geom_concat	pjd	Pre-commit review preferred.
 geom_eli	pjd	Pre-commit review preferred.
 geom_gate	pjd	Pre-commit review preferred.
@@ -110,7 +109,6 @@ lib/libbluetooth	emax	Pre-commit review preferred.
 lib/libsdp		emax	Pre-commit review preferred.
 usr.bin/bluetooth	emax	Pre-commit review preferred.
 usr.sbin/bluetooth	emax	Pre-commit review preferred.
-gnu/usr.bin/send-pr	bugmaster	Pre-commit review requested.
 *env(3)		secteam	Due to the problematic security history of this
 			code, please have patches reviewed by secteam.
 share/zoneinfo		edwin	Heads-up appreciated, since our data is coming

Makefile

@@ -32,6 +32,10 @@
 # targets             - Print a list of supported TARGET/TARGET_ARCH pairs
 #                       for world and kernel targets.
 # toolchains          - Build a toolchain for all world and kernel targets.
+# xdev                - xdev-build + xdev-install for the architecture
+#                       specified with XDEV and XDEV_ARCH.
+# xdev-build          - Build cross-development tools.
+# xdev-install        - Install cross-development tools.
 # 
 # "quick" way to test all kernel builds:
 # 	_jflag=`sysctl -n hw.ncpu`
@@ -248,8 +252,17 @@ tinderbox toolchains kernel-toolchains: .MAKE
 ${TGTS}:
 	${_+_}@cd ${.CURDIR}; ${_MAKE} ${.TARGET}
 
-# Set a reasonable default
-.MAIN:	all
+# The historic default "all" target creates files which may cause stale
+# or (in the cross build case) unlinkable results. Fail with an error
+# when no target is given. The users can explicitly specify "all"
+# if they want the historic behavior.
+.MAIN:	_guard
+
+_guard:
+	@echo
+	@echo "Explicit target required (use \"all\" for historic behavior)"
+	@echo
+	@false
 
 STARTTIME!= LC_ALL=C date
 CHECK_TIME!= find ${.CURDIR}/sys/sys/param.h -mtime -0s ; echo
@@ -341,7 +354,8 @@ MMAKEENV=	MAKEOBJDIRPREFIX=${MYMAKE:H} \
 MMAKE=		${MMAKEENV} ${MAKE} \
 		-D_UPGRADING \
 		-DNOMAN -DNO_MAN -DNOSHARED -DNO_SHARED \
-		-DNO_CPU_CFLAGS -DNO_WERROR DESTDIR= PROGNAME=${MYMAKE:T}
+		-DNO_CPU_CFLAGS -DNO_WERROR \
+		DESTDIR= MK_TESTS=no PROGNAME=${MYMAKE:T}
 
 make bmake: .PHONY
 	@echo
@@ -459,9 +473,15 @@ universe_kernels: universe_kernconfs
 .if !defined(TARGET)
 TARGET!=	uname -m
 .endif
+.if defined(MAKE_ALL_KERNELS)
+_THINNER=cat
+.else
+_THINNER=xargs grep -L "^.NO_UNIVERSE"
+.endif
 KERNCONFS!=	cd ${KERNSRCDIR}/${TARGET}/conf && \
 		find [A-Z0-9]*[A-Z0-9] -type f -maxdepth 0 \
-		! -name DEFAULTS ! -name NOTES
+		! -name DEFAULTS ! -name NOTES | \
+		${_THINNER}
 universe_kernconfs:
 .for kernel in ${KERNCONFS}
 TARGET_ARCH_${kernel}!=	cd ${KERNSRCDIR}/${TARGET}/conf && \