1 files changed, 45 insertions, 0 deletions
diff --git a/pkgs/development/compilers/llvm/12/lld/default.nix b/pkgs/development/compilers/llvm/12/lld/default.nix
new file mode 100644
index 000000000000..18b72a904071
--- /dev/null
+++ b/pkgs/development/compilers/llvm/12/lld/default.nix
@@ -0,0 +1,45 @@
+{ lib, stdenv, llvm_meta
+, fetch
+, libunwind
+, cmake
+, libxml2
+, llvm
+, version
+}:
+
+stdenv.mkDerivation rec {
+  pname = "lld";
+  inherit version;
+
+  src = fetch pname "1zakyxk5bwnh7jarckcd4rbmzi58jgn2dbah5j5cwcyfyfbx9drc";
+
+  nativeBuildInputs = [ cmake ];
+  buildInputs = [ llvm libxml2 ];
+
+  postPatch = ''
+    substituteInPlace MachO/CMakeLists.txt --replace \
+      '(''${LLVM_MAIN_SRC_DIR}/' '('
+    mkdir -p libunwind/include
+    tar -xf "${libunwind.src}" --wildcards -C libunwind/include --strip-components=2 "libunwind-*/include/"
+  '';
+
+  outputs = [ "out" "dev" ];
+
+  postInstall = ''
+    moveToOutput include "$dev"
+    moveToOutput lib "$dev"
+  '';
+
+  meta = llvm_meta // {
+    homepage = "https://lld.llvm.org/";
+    description = "The LLVM linker";
+    longDescription = ''
+      LLD is a linker from the LLVM project that is a drop-in replacement for
+      system linkers and runs much faster than them. It also provides features
+      that are useful for toolchain developers.
+      The linker supports ELF (Unix), PE/COFF (Windows), Mach-O (macOS) and
+      WebAssembly in descending order of completeness. Internally, LLD consists
+      of several different linkers.
+    '';
+  };
+}