diff --git a/pkgs/by-name/ll/llr/package.nix b/pkgs/by-name/ll/llr/package.nix
new file mode 100644
index 000000000000..500040abab92
--- /dev/null
+++ b/pkgs/by-name/ll/llr/package.nix
@@ -0,0 +1,61 @@
+{
+  fetchzip,
+  lib,
+  stdenv,
+  gmp,
+}:
+stdenv.mkDerivation (finalAttrs: {
+  pname = "llr";
+  version = "4.0.7b3";
+
+  src = fetchzip {
+    url = "http://jpenne.free.fr/llr4/llr${
+      builtins.replaceStrings [ "." ] [ "" ] finalAttrs.version
+    }src.zip";
+    hash = "sha256-U6Mjpcq5Kdkx2f6tVQNBldsN4JiKXZqbil1Lg3Q5Asw=";
+  };
+
+  enableParallelBuilding = true;
+
+  env.NIX_CFLAGS_COMPILE = "-std=gnu11";
+
+  # Disable _chdir in lprime.c to prevent segmentation fault when fopen returns NULL
+  postPatch = ''
+    substituteInPlace lprime.c \
+      --replace-fail "_chdir (buf)" "0/* _chdir (buf) */"
+  '';
+
+  buildPhase = ''
+    runHook preBuild
+
+    make -f make64
+
+    cd linux64llr
+
+    make llr64 \
+      LFLAGS="-L${gmp}/lib -lgmp -lm -lpthread"
+
+    runHook postBuild
+  '';
+
+  installPhase = ''
+    runHook preInstall
+
+    install -Dm755 llr64 $out/bin/llr
+
+    runHook postInstall
+  '';
+
+  meta = {
+    description = "Primality proving program for numbers of the form N = k*b^n +/- 1, (k < b^n)";
+    homepage = "http://jpenne.free.fr/index2.html";
+    maintainers = with lib.maintainers; [ dstremur ];
+    license = lib.licenses.unfree;
+    # LLR links against gwnum.a which is part of the proprietary gwnum library,
+    # making the resulting binary unfree even though the LLR source code itself
+    # may have different licensing terms.
+    sourceProvenance = [ lib.sourceTypes.binaryNativeCode ];
+    platforms = [ "x86_64-linux" ];
+    mainProgram = "llr";
+  };
+})