From b3c2e82e80517a1d9eec1ceea0942e4e5aaa03e1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?furby=E2=84=A2?= <devs@wabi.foundation>
Date: Fri, 13 Sep 2024 15:24:10 -0600
Subject: [PATCH] Eigen: fixup, correct umbrella header.
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Signed-off-by: furby™ <devs@wabi.foundation>
---
 Sources/Eigen/Eigen.cpp                           | 2 +-
 Sources/Eigen/include/Eigen/{Eigen => Eigen.h}    | 2 ++
 Sources/Eigen/include/Eigen/src/Core/Assign_MKL.h | 6 ++++++
 3 files changed, 9 insertions(+), 1 deletion(-)
 rename Sources/Eigen/include/Eigen/{Eigen => Eigen.h} (71%)

diff --git a/Sources/Eigen/Eigen.cpp b/Sources/Eigen/Eigen.cpp
index 029437b9..87601d92 100644
--- a/Sources/Eigen/Eigen.cpp
+++ b/Sources/Eigen/Eigen.cpp
@@ -1 +1 @@
-#include <Eigen/Eigen>
+#include <Eigen/Eigen.h>
diff --git a/Sources/Eigen/include/Eigen/Eigen b/Sources/Eigen/include/Eigen/Eigen.h
similarity index 71%
rename from Sources/Eigen/include/Eigen/Eigen
rename to Sources/Eigen/include/Eigen/Eigen.h
index 654c8dc6..e1302bf9 100644
--- a/Sources/Eigen/include/Eigen/Eigen
+++ b/Sources/Eigen/include/Eigen/Eigen.h
@@ -1,2 +1,4 @@
+#pragma once
+
 #include "Dense"
 #include "Sparse"
diff --git a/Sources/Eigen/include/Eigen/src/Core/Assign_MKL.h b/Sources/Eigen/include/Eigen/src/Core/Assign_MKL.h
index 0fda71cd..2bc03dab 100644
--- a/Sources/Eigen/include/Eigen/src/Core/Assign_MKL.h
+++ b/Sources/Eigen/include/Eigen/src/Core/Assign_MKL.h
@@ -34,9 +34,13 @@
 #ifndef EIGEN_ASSIGN_VML_H
 #define EIGEN_ASSIGN_VML_H
 
+#include "./util/MKL_support.h"
+
 // IWYU pragma: private
 #include "./InternalHeaderCheck.h"
 
+#if defined(EIGEN_USE_MKL)
+
 namespace Eigen { 
 
 namespace internal {
@@ -178,4 +182,6 @@ EIGEN_MKL_VML_DECLARE_POW_CALL(pow, vmzPowx, dcomplex, MKL_Complex16, LA)
 
 } // end namespace Eigen
 
+#endif // defined(EIGEN_USE_MKL)
+
 #endif // EIGEN_ASSIGN_VML_H