fix netbsd build

fuse/ipns/ipns_test.go

-// +build !nofuse,!openbsd
+// +build !nofuse,!openbsd,!netbsd
 
 package ipns
 

fuse/ipns/ipns_unix.go

-// +build !nofuse,!openbsd
+// +build !nofuse,!openbsd,!netbsd
 
 // package fuse/ipns implements a fuse filesystem that interfaces
 // with ipns, the naming system for ipfs.

fuse/ipns/link_unix.go

-// +build !nofuse,!openbsd
+// +build !nofuse,!openbsd,!netbsd
 
 package ipns
 

fuse/mount/fuse.go

-// +build !nofuse,!windows,!openbsd
+// +build !nofuse,!windows,!openbsd,!netbsd
 
 package mount
 

fuse/node/mount_openbsd.go → fuse/node/mount_notsupp.go

-// +build !nofuse
+// +build !nofuse,openbsd !nofuse,netbsd
 
 package node
 
@@ -9,5 +9,5 @@ import (
 )
 
 func Mount(node *core.IpfsNode, fsdir, nsdir string) error {
-	return errors.New("FUSE not supported on OpenBSD. See #5334 (https://git.io/fjMuC).")
+	return errors.New("FUSE not supported on OpenBSD or NetBSD. See #5334 (https://git.io/fjMuC).")
 }

fuse/node/mount_test.go

-// +build !openbsd,!nofuse
+// +build !openbsd,!nofuse,!netbsd
 
 package node
 

fuse/node/mount_unix.go

-// +build !windows,!openbsd,!nofuse
+// +build !windows,!openbsd,!netbsd,!nofuse
 
 package node
 

fuse/readonly/ipfs_test.go

-// +build !nofuse,!openbsd
+// +build !nofuse,!openbsd,!netbsd
 
 package readonly
 

fuse/readonly/mount_unix.go

-// +build linux darwin freebsd netbsd
+// +build linux darwin freebsd
 // +build !nofuse
 
 package readonly

fuse/readonly/readonly_unix.go

-// +build linux darwin freebsd netbsd
+// +build linux darwin freebsd
 // +build !nofuse
 
 package readonly

mk/util.mk

@@ -26,6 +26,9 @@ SUPPORTED_PLATFORMS += freebsd-amd64
 SUPPORTED_PLATFORMS += openbsd-386
 SUPPORTED_PLATFORMS += openbsd-amd64
 
+SUPPORTED_PLATFORMS += netbsd-386
+SUPPORTED_PLATFORMS += netbsd-amd64
+
 space:=
 space+=
 comma:=,