9pfs: Add

This is a FUSE-based 9p client.

pkgs/tools/filesystems/9pfs/default.nix

···
+{ lib, stdenv, fetchFromGitHub, fuse }:
+
+stdenv.mkDerivation rec {
+  name = "9pfs";
+
+  src = fetchFromGitHub {
+    owner = "spewspew";
+    repo = "9pfs";
+    rev = "7f4ca4cd750d650c1215b92ac3cc2a28041960e4";
+    sha256 = "007s2idsn6bspmfxv1qabj39ggkgvn6gwdbhczwn04lb4c6gh3xc";
+  };
+
+  preConfigure =
+    ''
+      substituteInPlace Makefile --replace '-g bin' ""
+      installFlagsArray+=(BIN=$out/bin MAN=$out/share/man/man1)
+      mkdir -p $out/bin $out/share/man/man1
+    '';
+
+  buildInputs = [ fuse ];
+
+  enableParallelBuilding = true;
+
+  meta = {
+    homepage = https://github.com/spewspew/9pfs;
+    description = "FUSE-based client of the 9P network filesystem protocol";
+    maintainers = [ lib.maintainers.eelco ];
+    platforms = lib.platforms.linux;
+  };
+}

pkgs/top-level/all-packages.nix

···
 
   ### TOOLS
 
+  _9pfs = callPackage ../tools/filesystems/9pfs { };
+
   "3dfsb" = callPackage ../applications/misc/3dfsb {
     glibc = glibc.override { debugSymbols = true; };
   };