libmtp: reformat, fix udev path, add maintainer

pkgs/development/libraries/libmtp/default.nix

@@ -1,6 +1,13 @@
-{ lib, stdenv, fetchFromGitHub, autoconf, automake, gettext, libtool, pkg-config
-, libusb1
+{ stdenv
+, autoconf
+, automake
+, fetchFromGitHub
+, gettext
+, lib
 , libiconv
+, libtool
+, libusb1
+, pkg-config
 }:
 
 stdenv.mkDerivation rec {
@@ -24,30 +31,26 @@ stdenv.mkDerivation rec {
     pkg-config
   ];
 
-  buildInputs = [
-    libiconv
-  ];
+  buildInputs = [ libiconv ];
 
-  propagatedBuildInputs = [
-    libusb1
-  ];
+  propagatedBuildInputs = [ libusb1 ];
 
-  preConfigure = ''
-    ./autogen.sh
-  '';
+  preConfigure = "./autogen.sh";
 
-  # tried to install files to /lib/udev, hopefully OK
-  configureFlags = [ "--with-udev=$$bin/lib/udev" ];
+  configureFlags = [ "--with-udev=${placeholder "out"}/lib/udev" ];
+
+  enableParallelBuilding = true;
 
   meta = with lib; {
-    homepage = "http://libmtp.sourceforge.net";
+    homepage = "https://github.com/libmtp/libmtp";
     description = "An implementation of Microsoft's Media Transfer Protocol";
     longDescription = ''
       libmtp is an implementation of Microsoft's Media Transfer Protocol (MTP)
       in the form of a library suitable primarily for POSIX compliant operating
       systems. We implement MTP Basic, the stuff proposed for standardization.
-      '';
+    '';
     platforms = platforms.unix;
     license = licenses.lgpl21;
+    maintainers = with maintainers; [ lovesegfault ];
   };
 }