libunwind: fix for aarch64 and non-4K pages (#166006)

Co-authored-by: Sandro <[e-mail]>

pkgs/development/libraries/libunwind/default.nix

···
-{ stdenv, lib, fetchurl, autoreconfHook, xz, buildPackages }:
+{ stdenv, lib, fetchurl, fetchpatch, autoreconfHook, xz, buildPackages }:
 
 stdenv.mkDerivation rec {
   pname = "libunwind";
···
     url = "mirror://savannah/libunwind/${pname}-${version}.tar.gz";
     sha256 = "sha256-SmrsZmmR+0XQiJxErt6K1usQgHHDVU/N/2cfnJR5SXY=";
   };
+
+  patches = [
+    # Fix for aarch64 and non-4K pages. Remove once upgraded past 1.6.2.
+    (fetchpatch {
+      url = "https://github.com/libunwind/libunwind/commit/e85b65cec757ef589f28957d0c6c21c498a03bdf.patch";
+      sha256 = "1lnlygvhqrdrjgw303pg2k2k4ms4gaghpjsgmhk47q83vy1yjwfg";
+    })
+  ];
 
   postPatch = if stdenv.cc.isClang then ''
     substituteInPlace configure.ac --replace "-lgcc_s" ""