From 4e3bc25f9fce48a7c48d970beb187be9fc9fd5e1 Mon Sep 17 00:00:00 2001
From: Chris Hennes <chennes@pioneerlibrarysystem.org>
Date: Wed, 18 Mar 2026 12:10:27 -0500
Subject: [PATCH] Build: Pin Eigen to fix weekly build failure (#28421)

Pin version to >=3.3,<5 because of PCL incompatibility

(cherry picked from commit 439c50c5c452bd3a478f9c7959605a2c8a7b870c)
---
 package/rattler-build/recipe.yaml | 2 +-
 pixi.toml                         | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/package/rattler-build/recipe.yaml b/package/rattler-build/recipe.yaml
index 3b2fb74159..808a24aea0 100644
--- a/package/rattler-build/recipe.yaml
+++ b/package/rattler-build/recipe.yaml
@@ -100,7 +100,7 @@ requirements:
 
   host:
     - coin3d
-    - eigen
+    - eigen >=3.3,<5
     - fmt
     - freetype
     - hdf5
diff --git a/pixi.toml b/pixi.toml
index 488e50eb84..e1631911ae 100644
--- a/pixi.toml
+++ b/pixi.toml
@@ -19,7 +19,7 @@ debugpy = "*"
 defusedxml = "*"
 docutils = "*"
 doxygen = "*"
-eigen = "*"
+eigen = ">=3.3,<5"
 fmt = "*"
 freetype = "*"
 git = "*"