lftp: Update to 4.4.0 and fix build

http://hydra.nixos.org/build/3896385

pkgs/tools/networking/lftp/default.nix

@@ -1,12 +1,20 @@
-{stdenv, fetchurl, gnutls, libtasn1, pkgconfig, readline, zlib, xz}:
+{ stdenv, fetchurl, gnutls, pkgconfig, readline, zlib, xz }:
 
 stdenv.mkDerivation rec {
-  name = "lftp-4.3.1";
+  name = "lftp-4.4.0";
 
   src = fetchurl {
     url = "ftp://ftp.cs.tu-berlin.de/pub/net/ftp/lftp/${name}.tar.xz";
-    sha256 = "0v3591fknmimarzk5icm0qxdcfzfckwi2drh165vsiggmj590iyx";
+    sha256 = "0cg4gabya2sygbwh2b0cdr8v719q9gv929hdb5g1mxgj8npjd4y7";
   };
 
-  buildInputs = [gnutls libtasn1 pkgconfig readline zlib];
+  patches = [ ./no-gets.patch ];
+
+  buildInputs = [ gnutls pkgconfig readline zlib ];
+
+  meta = {
+    homepage = http://lftp.yar.ru/;
+    description = "A file transfer program supporting a number of network protocols";
+    license = "GPL";
+  };
 }

pkgs/tools/networking/lftp/no-gets.patch

@@ -0,0 +1,15 @@
+--- a/lib/stdio.in.h
++++ b/lib/stdio.in.h
+@@ -702,10 +702,12 @@
+ /* It is very rare that the developer ever has full control of stdin,
+    so any use of gets warrants an unconditional warning; besides, C11
+    removed it.  */
++#ifdef gets
+ #undef gets
+ #if HAVE_RAW_DECL_GETS
+ _GL_WARN_ON_USE (gets, "gets is a security hole - use fgets instead");
+ #endif
++#endif
+ 
+ 
+ #if @GNULIB_OBSTACK_PRINTF@ || @GNULIB_OBSTACK_PRINTF_POSIX@