tomlcpp: fix cross compilation (#351896)

pkgs/by-name/to/tomlcpp/package.nix

@@ -1,4 +1,4 @@
-{ lib, stdenv, fetchFromGitHub }:
+{ lib, stdenv, fetchFromGitHub, fetchpatch }:
 
 stdenv.mkDerivation rec {
   pname = "tomlcpp";
@@ -11,17 +11,26 @@ stdenv.mkDerivation rec {
     hash = "sha256-PM3gURXhyTZr59BWuLHvltjKOlKUSBT9/rqTeX5V//k=";
   };
 
+  patches = [
+    (fetchpatch {
+      # Use implicit $AR variable in Makefile
+      # https://github.com/cktan/tomlcpp/pull/6
+      url = "https://github.com/cktan/tomlcpp/commit/abdb4e0db8b27f719434f5a0d6ec0b1a6b086ded.patch";
+      hash = "sha256-SurUKdAZNWqBC7ss5nv5mDnJyC3DqxG/Q/FweTrkLnk=";
+    })
+  ];
+
   dontConfigure = true;
 
   installFlags = [
     "prefix=${placeholder "out"}"
   ];
 
-  meta = with lib;{
+  meta = {
     homepage = "https://github.com/cktan/tomlcpp";
     description = "No fanfare TOML C++ Library";
-    license = licenses.mit;
-    maintainers = with maintainers; [ AndersonTorres ];
-    platforms = with platforms; unix;
+    license = lib.licenses.mit;
+    maintainers = with lib.maintainers; [ AndersonTorres ];
+    platforms = with lib.platforms; unix;
   };
 }