nanoarrow: fix build with c++20

Co-Authored-By: Doron Behar <doron.behar@gmail.com>

pkgs/by-name/na/nanoarrow/cpp20-arrow-cpp-fix.diff

@@ -0,0 +1,13 @@
+diff --git i/meson.build w/meson.build
+index 5c3032d..5ec2e56 100644
+--- i/meson.build
++++ w/meson.build
+@@ -22,7 +22,7 @@ project(
+     version: '0.8.0',
+     license: 'Apache-2.0',
+     meson_version: '>=0.58.0',
+-    default_options: ['c_std=c99', 'warning_level=2', 'cpp_std=c++17'],
++    default_options: ['c_std=c99', 'warning_level=2', 'cpp_std=c++20'],
+ )
+ 
+ cc = meson.get_compiler('c')

pkgs/by-name/na/nanoarrow/package.nix

@@ -30,6 +30,12 @@ stdenv.mkDerivation (finalAttrs: {
     tag = "apache-arrow-nanoarrow-${finalAttrs.version}";
     hash = "sha256-1iLbT1eeyZaoB75uYTgg4qns+C7b4DErqMwJ9nQPRls=";
   };
+  patches = [
+    # Fixes an issue between our `arrow-cpp` and this version of `nanoarrow`.
+    # Not applicable for upstreaming so it seems. See discussion:
+    # https://github.com/apache/arrow-nanoarrow/issues/902
+    ./cpp20-arrow-cpp-fix.diff
+  ];
 
   nativeBuildInputs = [
     meson