From 9510666e6ccae838bf57ac4b265803335e87bd3d Mon Sep 17 00:00:00 2001
From: Shogo Takata <peshogo@gmail.com>
Date: Tue, 19 May 2026 07:37:13 +0900
Subject: [PATCH] sv-lang_10: init at 10.0

Introduces sv-lang version 10.
Needed by circt for its slang frontend in newer versions. Includes a
patch to install BS_thread_pool.hpp when SLANG_USE_THREADS is enabled.
---
 pkgs/by-name/sv/sv-lang_10/package.nix | 77 ++++++++++++++++++++++++++
 1 file changed, 77 insertions(+)
 create mode 100644 pkgs/by-name/sv/sv-lang_10/package.nix

diff --git a/pkgs/by-name/sv/sv-lang_10/package.nix b/pkgs/by-name/sv/sv-lang_10/package.nix
new file mode 100644
index 000000000000..15b0d2259c89
--- /dev/null
+++ b/pkgs/by-name/sv/sv-lang_10/package.nix
@@ -0,0 +1,77 @@
+{
+  lib,
+  stdenv,
+  fetchFromGitHub,
+  fetchpatch,
+  boost,
+  catch2_3,
+  cmake,
+  ninja,
+  fmt,
+  mimalloc,
+  python3,
+}:
+
+stdenv.mkDerivation (finalAttrs: {
+  pname = "sv-lang";
+  version = "10.0";
+
+  src = fetchFromGitHub {
+    owner = "MikePopoloski";
+    repo = "slang";
+    tag = "v${finalAttrs.version}";
+    hash = "sha256-rw+DztENuY+DiAhQR2oNN/dQJzrcP5neF3LoWnqri+c=";
+  };
+
+  patches = [
+    (fetchpatch {
+      url = "https://github.com/MikePopoloski/slang/commit/0e2094e3570f399c4bedff8c7cf342812b50d909.patch";
+      hash = "sha256-Evx5HJk8fH3QoBXM5BE3tmdJVnblVTkxLMTNIRLOt/c=";
+    })
+  ];
+
+  postPatch = ''
+    substituteInPlace external/CMakeLists.txt --replace-fail \
+      'set(mimalloc_min_version "2.2")' \
+      'set(mimalloc_min_version "${lib.versions.majorMinor mimalloc.version}")'
+  '';
+
+  cmakeFlags = [
+    "-DCMAKE_INSTALL_INCLUDEDIR=include"
+    "-DCMAKE_INSTALL_LIBDIR=lib"
+    "-DSLANG_INCLUDE_TESTS=${if finalAttrs.finalPackage.doCheck then "ON" else "OFF"}"
+    # CIRCT disables threading to avoid a race condition in BS::thread_pool:
+    # https://github.com/llvm/circt/blob/firtool-1.147.0/CMakeLists.txt#L579
+    # This may be parameterized if other packages depend on this package.
+    "-DSLANG_USE_THREADS=OFF"
+  ];
+
+  __structuredAttrs = true;
+
+  nativeBuildInputs = [
+    cmake
+    python3
+    ninja
+  ];
+
+  strictDeps = true;
+
+  buildInputs = [
+    boost
+    fmt
+    mimalloc
+    catch2_3
+  ];
+
+  doCheck = !stdenv.hostPlatform.isDarwin;
+
+  meta = {
+    description = "SystemVerilog compiler and language services";
+    homepage = "https://github.com/MikePopoloski/slang";
+    license = lib.licenses.mit;
+    maintainers = with lib.maintainers; [ sharzy ];
+    mainProgram = "slang";
+    platforms = lib.platforms.all;
+    broken = stdenv.hostPlatform.isDarwin;
+  };
+})