Bump nixpkgs.

default.nix

@@ -23,6 +23,10 @@
 let
   config = {
     packageOverrides = pkgs: rec {
+      # Very ugly hack to use an older version of elfutils, as the
+      # newest apparently does not work with static linking.
+      elfutils191 = pkgs.callPackage ./nix/elfutils191.nix {};
+
       haskellPackages = pkgs.haskellPackages.override {
         overrides = haskellPackagesNew: haskellPackagesOld: rec {
           futhark-data =
@@ -59,7 +63,7 @@ let
             pkgs.haskell.lib.overrideCabal
               (pkgs.haskell.lib.addBuildTools
                 (haskellPackagesOld.callCabal2nix "futhark" (cleanSource ./.) { })
-                [ pkgs.python39Packages.sphinx ])
+                [ pkgs.python312Packages.sphinx ])
               ( _drv: {
                 isLibrary = false;
                 isExecutable = true;
@@ -87,7 +91,7 @@ let
                   "--extra-lib-dirs=${(pkgs.xz.override { enableStatic = true; }).out}/lib"
                   "--extra-lib-dirs=${(pkgs.zstd.override { enableStatic = true; }).out}/lib"
                   "--extra-lib-dirs=${(pkgs.bzip2.override { enableStatic = true; }).out}/lib"
-                  "--extra-lib-dirs=${(pkgs.elfutils.overrideAttrs (old: { dontDisableStatic= true; })).out}/lib"
+                  "--extra-lib-dirs=${(elfutils191.overrideAttrs (old: { dontDisableStatic= true; })).out}/lib"
                 ];
 
                 preBuild = ''

nix/elfutils191.nix

@@ -0,0 +1,93 @@
+{ lib, stdenv, fetchurl, fetchpatch, pkg-config, musl-fts
+, musl-obstack, m4, zlib, zstd, bzip2, bison, flex, gettext, xz, setupDebugInfoDirs
+, argp-standalone
+, enableDebuginfod ? lib.meta.availableOn stdenv.hostPlatform libarchive, sqlite, curl, libmicrohttpd, libarchive
+, gitUpdater, autoreconfHook
+}:
+
+# TODO: Look at the hardcoded paths to kernel, modules etc.
+stdenv.mkDerivation rec {
+  pname = "elfutils";
+  version = "0.191";
+
+  src = fetchurl {
+    url = "https://sourceware.org/elfutils/ftp/${version}/${pname}-${version}.tar.bz2";
+    hash = "sha256-33bbcTZtHXCDZfx6bGDKSDmPFDZ+sriVTvyIlxR62HE=";
+  };
+
+  postPatch = ''
+    patchShebangs tests/*.sh
+  '' + lib.optionalString stdenv.hostPlatform.isRiscV ''
+    # disable failing test:
+    #
+    # > dwfl_thread_getframes: No DWARF information found
+    sed -i s/run-backtrace-dwarf.sh//g tests/Makefile.in
+  '';
+
+  outputs = [ "bin" "dev" "out" "man" ];
+
+  # We need bzip2 in NativeInputs because otherwise we can't unpack the src,
+  # as the host-bzip2 will be in the path.
+  nativeBuildInputs = [ m4 bison flex gettext bzip2 ]
+    ++ lib.optional enableDebuginfod pkg-config
+    ++ lib.optional (stdenv.targetPlatform.useLLVM or false) autoreconfHook;
+  buildInputs = [ zlib zstd bzip2 xz ]
+    ++ lib.optionals stdenv.hostPlatform.isMusl [
+    argp-standalone
+    musl-fts
+    musl-obstack
+  ] ++ lib.optionals enableDebuginfod [
+    sqlite
+    curl
+    libmicrohttpd
+    libarchive
+  ];
+
+  propagatedNativeBuildInputs = [ setupDebugInfoDirs ];
+
+  configureFlags = [
+    "--program-prefix=eu-" # prevent collisions with binutils
+    "--enable-deterministic-archives"
+    (lib.enableFeature enableDebuginfod "libdebuginfod")
+    (lib.enableFeature enableDebuginfod "debuginfod")
+
+    # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101766
+    # Versioned symbols are nice to have, but we can do without.
+    (lib.enableFeature (!stdenv.hostPlatform.isMicroBlaze) "symbol-versioning")
+  ] ++ lib.optional (stdenv.targetPlatform.useLLVM or false) "--disable-demangler"
+    ++ lib.optionals stdenv.cc.isClang [
+      "CFLAGS=-Wno-unused-private-field"
+      "CXXFLAGS=-Wno-unused-private-field"
+    ];
+
+  enableParallelBuilding = true;
+
+
+  doCheck =
+    # Backtrace unwinding tests rely on glibc-internal symbol names.
+    # Musl provides slightly different forms and fails.
+    # Let's disable tests there until musl support is fully upstreamed.
+    !stdenv.hostPlatform.isMusl
+    # Test suite tries using `uname` to determine whether certain tests
+    # can be executed, so we need to match build and host platform exactly.
+    && (stdenv.hostPlatform == stdenv.buildPlatform);
+  doInstallCheck = !stdenv.hostPlatform.isMusl
+    && (stdenv.hostPlatform == stdenv.buildPlatform);
+
+  passthru.updateScript = gitUpdater {
+    url = "https://sourceware.org/git/elfutils.git";
+    rev-prefix = "elfutils-";
+  };
+
+  meta = with lib; {
+    homepage = "https://sourceware.org/elfutils/";
+    description = "Set of utilities to handle ELF objects";
+    platforms = platforms.linux;
+    # https://lists.fedorahosted.org/pipermail/elfutils-devel/2014-November/004223.html
+    badPlatforms = [ lib.systems.inspect.platformPatterns.isStatic ];
+    # licenses are GPL2 or LGPL3+ for libraries, GPL3+ for bins,
+    # but since this package isn't split that way, all three are listed.
+    license = with licenses; [ gpl2Only lgpl3Plus gpl3Plus ];
+    maintainers = with maintainers; [ r-burns ];
+  };
+}

nix/sources.json

@@ -17,10 +17,10 @@
         "homepage": "",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "0f1874526206d8a2d6f0a3925618cc45ac83049f",
-        "sha256": "0fab3015jdy6dsrjcsa8ipsl4pr7cizg8bs3ff2dawxfgrgizyqp",
+        "rev": "cf0e7c1ab2634e89fc2c4ec479609b8250dc0ace",
+        "sha256": "14g5j556bkckplprzb907d06mkxzxs45dzkglacz1jrx955xx86w",
         "type": "tarball",
-        "url": "https://github.com/NixOS/nixpkgs/archive/0f1874526206d8a2d6f0a3925618cc45ac83049f.tar.gz",
+        "url": "https://github.com/NixOS/nixpkgs/archive/cf0e7c1ab2634e89fc2c4ec479609b8250dc0ace.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     }
 }

shell.nix

@@ -2,7 +2,7 @@
 let
   sources = import ./nix/sources.nix;
   pkgs = import sources.nixpkgs {};
-  python = pkgs.python311Packages;
+  python = pkgs.python312Packages;
   haskell = pkgs.haskell.packages.ghc96;
 in
 pkgs.stdenv.mkDerivation {