From 23c160736849bb8d209ed93b51576906d88f1e7f Mon Sep 17 00:00:00 2001
From: jthulhu <jthulhu@posteo.net>
Date: Sat, 28 Mar 2026 19:13:15 +0100
Subject: [PATCH] lean4: 4.28 -> 4.29

---
 pkgs/by-name/le/lean4/mimalloc.patch | 9 +++++----
 pkgs/by-name/le/lean4/package.nix    | 4 ++--
 2 files changed, 7 insertions(+), 6 deletions(-)

diff --git a/pkgs/by-name/le/lean4/mimalloc.patch b/pkgs/by-name/le/lean4/mimalloc.patch
index cb75a7fdf6e7..d69ae4eaae87 100644
--- a/pkgs/by-name/le/lean4/mimalloc.patch
+++ b/pkgs/by-name/le/lean4/mimalloc.patch
@@ -1,8 +1,8 @@
 --- a/CMakeLists.txt
 +++ b/CMakeLists.txt
-@@ -77,12 +77,8 @@
- if (USE_MIMALLOC)
-   ExternalProject_add(mimalloc
+@@ -80,11 +80,7 @@
+   ExternalProject_add(
+     mimalloc
      PREFIX mimalloc
 -    GIT_REPOSITORY https://github.com/microsoft/mimalloc
 -    GIT_TAG v2.2.3
@@ -10,7 +10,8 @@
 -    CONFIGURE_COMMAND ""
 -    BUILD_COMMAND ""
 +    SOURCE_DIR "MIMALLOC-SRC"
-     INSTALL_COMMAND "")
+     INSTALL_COMMAND ""
+   )
    list(APPEND EXTRA_DEPENDS mimalloc)
  endif()
  
diff --git a/pkgs/by-name/le/lean4/package.nix b/pkgs/by-name/le/lean4/package.nix
index 7f7c8962b0ba..b223cc5daa86 100644
--- a/pkgs/by-name/le/lean4/package.nix
+++ b/pkgs/by-name/le/lean4/package.nix
@@ -15,7 +15,7 @@
 
 stdenv.mkDerivation (finalAttrs: {
   pname = "lean4";
-  version = "4.28.0";
+  version = "4.29.0";
 
   # Using a vendored version rather than nixpkgs' version to match the exact version required by
   # Lean.  Apparently, even a slight version change can impact greatly the final performance.
@@ -30,7 +30,7 @@ stdenv.mkDerivation (finalAttrs: {
     owner = "leanprover";
     repo = "lean4";
     tag = "v${finalAttrs.version}";
-    hash = "sha256-K6lWXZ8XVEv91skjCal+hML2Tzr9G804j9Roq+4HXQQ=";
+    hash = "sha256-0v4OTrCLdHBbWJUq7hIjJonqget9SvsG3izGlOwhwyU=";
   };
 
   postPatch =