nixpkgs: nixos-23.05 -> nixos-23.11 (#99)

Upgrade nixpkgs from nixos-23.05 to the just released nixos-23.11.

Author: bobvanderlinden

flake.lock

@@ -2,7 +2,7 @@
   description = "mkRuby to build a version of Ruby";
 
   inputs.flake-utils.url = "github:numtide/flake-utils";
-  inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixos-23.05";
+  inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixos-23.11";
   inputs.flake-compat.url = "github:edolstra/flake-compat";
   inputs.flake-compat.flake = false;
 

flake.nix

@@ -1,7 +1,9 @@
 { versionComparison
 , openssl_1_1
+, stdenv
 }:
 [
+  # Some of the older versions do not build.
   {
     condition = version: with versionComparison version;
       composeAny hasPrefix [
@@ -24,11 +26,31 @@
       ];
     override = pkg: pkg.overrideAttrs (finalAttrs: previousAttrs: { meta = previousAttrs.meta // { broken = true; }; });
   }
+  # Some of the older versions do not build on OSX. Mark these as broken.
+  {
+    condition = version: stdenv.isDarwin && (with versionComparison version;
+      composeAny hasPrefix [
+        "2.2.1"
+        "2.2.2"
+        "2.2.3"
+        "2.2.4"
+        "2.2.5"
+        "2.2.6"
+        "2.2.7"
+        "2.2.8"
+        "2.2.9"
+        "2.6.7"
+      ]);
+    override = pkg: pkg.overrideAttrs (finalAttrs: previousAttrs: { meta = previousAttrs.meta // { broken = true; }; });
+  }
+  # Ruby 3.1 introduced support for OpenSSL 3, everything before that uses OpenSSL 1.1.
   {
     condition = version: with versionComparison version;
       lessThan "3.1";
     override = pkg: pkg.override { openssl = openssl_1_1; };
   }
+  # Ruby nowadays uses an convention for libDir = MAJOR.MINOR.0.
+  # This wasn't the case for Ruby < 3.
   {
     condition = version: with versionComparison version;
       hasPrefix "2.0";
@@ -39,6 +61,7 @@
       hasPrefix "1.9" && greaterOrEqualTo "1.9.1";
     override = pkg: pkg.override { libDir = "1.9.1"; };
   }
+  # yjit support was introduced in Ruby 3.2. Disable it for older versions.
   {
     condition = version: with versionComparison version;
       lessThan "3.2";