From 3bdcdb94fa1ce2cd079c579d769094096d9b4cec Mon Sep 17 00:00:00 2001
From: peabody124 <peabody124>
Date: Mon, 28 Mar 2011 10:41:10 +0000
Subject: [PATCH] Make the Eigen library compile on OSX again

git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@3085 ebee16cc-31ac-478f-84a7-5cbb03baadba
---
 ground/openpilotgcs/src/libs/eigen/Eigen/align-function.h | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/ground/openpilotgcs/src/libs/eigen/Eigen/align-function.h b/ground/openpilotgcs/src/libs/eigen/Eigen/align-function.h
index 69a9bcd50..160fdc33b 100644
--- a/ground/openpilotgcs/src/libs/eigen/Eigen/align-function.h
+++ b/ground/openpilotgcs/src/libs/eigen/Eigen/align-function.h
@@ -14,7 +14,12 @@
 # else
 #  define FORCE_ALIGN_FUNC
 # endif
-#error Unknown compiler.  You may need to provide a definition of FORCE_ALIGN_FUNC
+#else
+# ifdef __MACOSX__
+#  define FORCE_ALIGN_FUNC
+# else
+#  error Unknown compiler.  You may need to provide a definition of FORCE_ALIGN_FUNC
+# endif
 #endif
 
 #endif // !defined OP_EIGEN_ALIGN_FUNCTION_H