From 33f40b2883630b5ddec3bab5730691b40120faa6 Mon Sep 17 00:00:00 2001
From: Christoph Hertzberg <chtz@informatik.uni-bremen.de>
Date: Sat, 28 Feb 2015 14:53:11 +0100
Subject: Cygwin does not like weak linking either.

---
 blas/xerbla.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'blas')

diff --git a/blas/xerbla.cpp b/blas/xerbla.cpp
index 8775b88cd..c373e8699 100644
--- a/blas/xerbla.cpp
+++ b/blas/xerbla.cpp
@@ -1,7 +1,7 @@
 
 #include <stdio.h>
 
-#if (defined __GNUC__) && (!defined __MINGW32__)
+#if (defined __GNUC__) && (!defined __MINGW32__) && (!defined __CYGWIN__)
 #define EIGEN_WEAK_LINKING __attribute__ ((weak))
 #else
 #define EIGEN_WEAK_LINKING
-- 
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