Index: pkgsrc/mk/bsd.prefs.mk
===================================================================
RCS file: /cvsroot/pkgsrc/mk/bsd.prefs.mk,v
retrieving revision 1.409
diff -p -u -r1.409 bsd.prefs.mk
--- pkgsrc/mk/bsd.prefs.mk	2 Jul 2021 12:03:24 -0000	1.409
+++ pkgsrc/mk/bsd.prefs.mk	5 Jul 2021 09:47:24 -0000
@@ -124,6 +124,8 @@ GNU_ARCH.mips?=		mipsel
 GNU_ARCH.sh3eb?=	sh
 GNU_ARCH.sh3el?=	shle
 GNU_ARCH.mips64eb?=	mips64
+GNU_ARCH.mipsn64eb?=	mips64
+GNU_ARCH.mipsn64el?=	mips64el
 NATIVE_MACHINE_GNU_ARCH?=	${GNU_ARCH.${NATIVE_MACHINE_ARCH}:U${NATIVE_MACHINE_ARCH}}
 MACHINE_GNU_ARCH?=		${GNU_ARCH.${MACHINE_ARCH}:U${MACHINE_ARCH}}
 
@@ -854,17 +856,18 @@ LP32PLATFORMS=		*-*-earm* *-*-hppa *-*-i
 # Keywords: BROKEN_ON_PLATFORM 64bit
 #
 LP64PLATFORMS=		*-*-aarch64 *-*-aarch64eb *-*-alpha *-*-ia64 \
-			*-*-powerpc64 *-*-riscv64 *-*-sparc64 *-*-x86_64
+			*-*-mipsn64* *-*-powerpc64 *-*-riscv64 *-*-sparc64 \
+			*-*-x86_64
 
 # Lists of big-endian and little-endian platforms, to be used with
 # BROKEN_ON_PLATFORM.
 #
 # Keywords: BROKEN_ON_PLATFORM little-endian big-endian endian
 #
-_BIGENDIANCPUS=		coldfire hppa m68000 m68k mips64eb mipseb or1k \
-			powerpc powerpc64 sh3eb sparc sparc64
-_LITTLEENDIANCPUS=	alpha i386 ia64 mips64el mipsel powerpc64le riscv32 \
-			riscv64 sh3el vax x86_64
+_BIGENDIANCPUS=		coldfire hppa m68000 m68k mips64eb mipseb mipsn64eb \
+			or1k powerpc powerpc64 sh3eb sparc sparc64
+_LITTLEENDIANCPUS=	alpha i386 ia64 mips64el mipsel mipsn64el powerpc64le \
+			riscv32 riscv64 sh3el vax x86_64
 
 # piles of ARM variants
 _ARMCPUS+=		arm earm earmhf earmv4 earmv5 earmv6 earmv6hf
Index: pkgsrc/mk/gnu-config/config.guess
===================================================================
RCS file: /cvsroot/pkgsrc/mk/gnu-config/config.guess,v
retrieving revision 1.23
diff -p -u -r1.23 config.guess
--- pkgsrc/mk/gnu-config/config.guess	20 Oct 2020 10:40:19 -0000	1.23
+++ pkgsrc/mk/gnu-config/config.guess	5 Jul 2021 09:47:25 -0000
@@ -185,6 +185,8 @@ case "$UNAME_MACHINE:$UNAME_SYSTEM:$UNAM
 	    aarch64eb) machine=aarch64_be-unknown ;;
 	    armeb) machine=armeb-unknown ;;
 	    arm*) machine=arm-unknown ;;
+	    mipsn64eb) machine=mips64-unknown ;;
+	    mipsn64el) machine=mips64el-unknown ;;
 	    sh3el) machine=shl-unknown ;;
 	    sh3eb) machine=sh-unknown ;;
 	    sh5el) machine=sh5le-unknown ;;