luajit*: Fix badPlatforms declarations for 64-bit POWER (#502746)

pkgs/development/interpreters/luajit/default.nix

@@ -172,7 +172,9 @@ stdenv.mkDerivation (finalAttrs: {
       badPlatforms = [
         "loongarch64-linux" # See https://github.com/LuaJIT/LuaJIT/issues/1278
         "riscv64-linux" # See https://github.com/LuaJIT/LuaJIT/issues/628
-        "powerpc64le-linux" # `#error "No support for PPC64"`
+        # `#error "No support for PPC64"`
+        "powerpc64-linux"
+        "powerpc64le-linux"
       ];
       mainProgram = "lua";
       maintainers = with lib.maintainers; [

pkgs/development/interpreters/luajit/openresty.nix

@@ -15,5 +15,17 @@ callPackage ./default.nix rec {
     hash = "sha256-SICmM+/dvp/36UAWAH0l7D938iFDimnoKBOjlOodrCY=";
   };
 
+  extraMeta = {
+    badPlatforms = [
+      "loongarch64-linux" # See https://github.com/LuaJIT/LuaJIT/issues/1278
+      "riscv64-linux" # See https://github.com/LuaJIT/LuaJIT/issues/628
+      # 64-bit POWER (LE and BE, either ELF ABI version on the latter) *is* supported, but ELFv1 powerpc64-linux has an
+      # issue with memory allocation
+      # https://github.com/openresty/luajit2/issues/258
+      # Both BE ABI versions use the same double though, so would have to inspect stdenv to differentiate.
+      "powerpc64-linux"
+    ];
+  };
+
   inherit self passthruFun;
 }