commit 81044ec13df7608d0d9d86aff2ef9805fc69bed1
author Charles Schlosser <cs.schlosser@gmail.com> Thu Jun 19 04:23:35 2025 +0000
committer Rasmus Munk Larsen <rmlarsen@google.com> Thu Jun 19 04:23:35 2025 +0000
tree fc536d223c7d1cec0562c025a21b11e5a985b118
parent bcce88c99ed687b756b7a537554cb7c1780b816e

Provide macro to explicitly disable alloca

Eigen/src/Core/util/Memory.h

diff --git a/Eigen/src/Core/util/Memory.h b/Eigen/src/Core/util/Memory.h
index 5a2f07c..44056b3 100644
--- a/Eigen/src/Core/util/Memory.h
+++ b/Eigen/src/Core/util/Memory.h
@@ -762,7 +762,7 @@
  * This is accomplished through alloca if this later is supported and if the required number of bytes
  * is below EIGEN_STACK_ALLOCATION_LIMIT.
  */
-#ifdef EIGEN_ALLOCA
+#if defined(EIGEN_ALLOCA) && !defined(EIGEN_NO_ALLOCA)
 
 #if EIGEN_DEFAULT_ALIGN_BYTES > 0
 // We always manually re-align the result of EIGEN_ALLOCA.