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This file is part of MXE.
See index.html for further information.

--- a/cmake/EigenTesting.cmake
+++ b/cmake/EigenTesting.cmake
@@ -324,7 +324,7 @@
     # on all other system we rely on ${CMAKE_CXX_COMPILER}
     # supporting a "--version" or "/version" flag
     
-    if(WIN32 AND NOT CYGWIN)
+    if(WIN32 AND NOT CMAKE_COMPILER_IS_GNUCXX AND NOT CMAKE_COMPILER_IS_GNUCC)
       set(EIGEN_CXX_FLAG_VERSION "/version")
     else()
       set(EIGEN_CXX_FLAG_VERSION "--version")