ninja_1_11: init at 1.11.1

Swift 5.8 doesn’t reliably build with Ninja 1.12, and apparently
neither do old versions of ROCm, due to a build scheduling change
breaking builds with undeclared dependencies. Upstream Swift have
pinned 1.11 for now.

Reintroducing it isn’t a good long‐term solution, but seems
like the easiest way to avoid shipping 24.11 with a broken Swift
on Darwin. The patch for 32‐bit systems has not been restored,
as Swift doesn’t support them anyway.

pkgs/by-name/ni/ninja/package.nix

@@ -11,18 +11,35 @@
 , buildPackages
 , buildDocs ? true
 , nix-update-script
+, ninjaRelease ? "latest"
 }:
 
+let
+  releases = {
+    # TODO: Remove Ninja 1.11 as soon as possible.
+    "1.11" = fetchFromGitHub {
+      owner = "ninja-build";
+      repo = "ninja";
+      rev = "v1.11.1";
+      hash = "sha256-LvV/Fi2ARXBkfyA1paCRmLUwCh/rTyz+tGMg2/qEepI=";
+    };
+
+    latest = fetchFromGitHub {
+      owner = "ninja-build";
+      repo = "ninja";
+      rev = "v1.12.1";
+      hash = "sha256-RT5u+TDvWxG5EVQEYj931EZyrHUSAqK73OKDAascAwA=";
+    };
+  };
+in
+
+assert lib.assertMsg (releases ? ${ninjaRelease}) "Unsupported Ninja release: ${ninjaRelease}";
+
 stdenv.mkDerivation (finalAttrs: {
   pname = "ninja";
-  version = "1.12.1";
+  version = lib.removePrefix "v" finalAttrs.src.rev;
 
-  src = fetchFromGitHub {
-    owner = "ninja-build";
-    repo = "ninja";
-    rev = "v${finalAttrs.version}";
-    hash = "sha256-RT5u+TDvWxG5EVQEYj931EZyrHUSAqK73OKDAascAwA=";
-  };
+  src = releases.${ninjaRelease};
 
   depsBuildBuild = [ buildPackages.stdenv.cc ];
 

pkgs/top-level/all-packages.nix

@@ -30944,6 +30944,8 @@ with pkgs;
 
   node-problem-detector = callPackage ../applications/networking/cluster/node-problem-detector { };
 
+  ninja_1_11 = callPackage ../by-name/ni/ninja/package.nix { ninjaRelease = "1.11"; };
+
   ninjas2 = callPackage ../applications/audio/ninjas2 { };
 
   nootka = qt5.callPackage ../applications/audio/nootka { };