libunwind: 1.1 -> 1.2.1

pkgs/development/libraries/libunwind/default.nix

@@ -1,39 +1,20 @@
 { stdenv, fetchurl, fetchpatch, autoreconfHook, xz }:
 
 stdenv.mkDerivation rec {
-  name = "libunwind-1.1";
+  name = "libunwind-${version}";
+  version = "1.2.1";
 
   src = fetchurl {
     url = "mirror://savannah/libunwind/${name}.tar.gz";
-    sha256 = "16nhx2pahh9d62mvszc88q226q5lwjankij276fxwrm8wb50zzlx";
+    sha256 = "1jsslwkilwrsj959dc8b479qildawz67r8m4lzxm7glcwa8cngiz";
   };
 
-  buildInputs = stdenv.lib.optional stdenv.isAarch64 autoreconfHook;
-
-  patches = [ ./libunwind-1.1-lzma.patch ./cve-2015-3239.patch
-              # https://lists.nongnu.org/archive/html/libunwind-devel/2014-04/msg00000.html
-              (fetchpatch {
-                url = "https://raw.githubusercontent.com/dropbox/pyston/1b2e676417b0f5f17526ece0ed840aa88c744145/libunwind_patches/0001-Change-the-RBP-validation-heuristic-to-allow-size-0-.patch";
-                sha256 = "1a0fsgfxmgd218nscswx7pgyb7rcn2gh6566252xhfvzhgn5i4ha";
-              })
-            ] ++ stdenv.lib.optional stdenv.isAarch64 (fetchpatch {
-              url = "https://raw.githubusercontent.com/archlinuxarm/PKGBUILDs/77709d1c6d5c39e23c1535b1bd584be1455f2551/extra/libunwind/libunwind-aarch64.patch";
-              sha256 = "1mpjs8izq9wxiaf5rl4gzaxrkz0s51f9qz5qc5dj72pr84mw50w8";
-            });
-
-  postPatch = ''
-    sed -i -e '/LIBLZMA/s:-lzma:-llzma:' configure
-  '';
+  nativeBuildInputs = [ autoreconfHook ];
 
   outputs = [ "out" "dev" ];
 
   propagatedBuildInputs = [ xz ];
 
-  preInstall = ''
-    mkdir -p "$out/lib"
-    touch "$out/lib/libunwind-generic.so"
-  '';
-
   postInstall = ''
     find $out -name \*.la | while read file; do
       sed -i 's,-llzma,${xz.out}/lib/liblzma.la,' $file
@@ -43,7 +24,8 @@ stdenv.mkDerivation rec {
   meta = with stdenv.lib; {
     homepage = http://www.nongnu.org/libunwind;
     description = "A portable and efficient API to determine the call-chain of a program";
+    maintainers = with maintainers; [ orivej ];
     platforms = platforms.linux;
-    license = licenses.gpl2;
+    license = licenses.mit;
   };
 }