lzfse: enable Darwin build

- Enable Darwin build, since Darwin is supported.
- Replace the revision by the corresponding Git tag.

pkgs/tools/compression/lzfse/default.nix

@@ -1,13 +1,13 @@
 { stdenv, fetchFromGitHub }:
 
-stdenv.mkDerivation {
+stdenv.mkDerivation rec {
   pname = "lzfse";
-  version = "2017-03-08";
+  version = "1.0";
 
   src = fetchFromGitHub {
     owner = "lzfse";
     repo = "lzfse";
-    rev = "88e2d27";
+    rev = "lzfse-${version}";
     sha256 = "1mfh6y6vpvxsdwmqmfbkqkwvxc0pz2dqqc72c6fk9sbsrxxaghd5";
   };
 
@@ -23,7 +23,7 @@ stdenv.mkDerivation {
       LZFSE is a Lempel-Ziv style data compression algorithm using Finite State Entropy coding.
       It targets similar compression rates at higher compression and decompression speed compared to deflate using zlib.
     '';
-    platforms = platforms.linux;
+    platforms = platforms.unix;
     license = licenses.bsd3;
     maintainers = with maintainers; [ ];
   };