From 929785924cf4c3d68946e9a24beebbd92b1d2b50 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Antonio=20S=C3=A1nchez?= <cantonios@google.com>
Date: Sat, 14 Mar 2026 16:07:44 +0000
Subject: [PATCH] Fix more cache size queries.

libeigen/eigen!2296
---
 Eigen/src/Core/util/Memory.h | 2 +-
 test/redux.cpp               | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/Eigen/src/Core/util/Memory.h b/Eigen/src/Core/util/Memory.h
index efe0eb764..2d48eb538 100644
--- a/Eigen/src/Core/util/Memory.h
+++ b/Eigen/src/Core/util/Memory.h
@@ -1331,7 +1331,7 @@ inline void queryCacheSizes(int& l1, int& l2, int& l3) {
     val_size = sizeof(val);
     if (sysctlbyname("hw.l3cachesize", &val, &val_size, NULL, 0) == 0 && val > 0) l3 = static_cast<int>(val);
   }
-#elif defined(_SC_LEVEL1_DCACHE_SIZE)
+#elif EIGEN_OS_UNIX && defined(_SC_LEVEL1_DCACHE_SIZE)
   // On Linux and other POSIX systems, use sysconf to query cache sizes.
   l1 = sysconf(_SC_LEVEL1_DCACHE_SIZE);
   l2 = sysconf(_SC_LEVEL2_CACHE_SIZE);
diff --git a/test/redux.cpp b/test/redux.cpp
index fa1ff994f..ad3ff1fe2 100644
--- a/test/redux.cpp
+++ b/test/redux.cpp
@@ -14,8 +14,8 @@
 
 #include "main.h"
 
-    template <typename MatrixType>
-    void matrixRedux(const MatrixType& m) {
+template <typename MatrixType>
+void matrixRedux(const MatrixType& m) {
   typedef typename MatrixType::Scalar Scalar;
   typedef typename MatrixType::RealScalar RealScalar;