Index: extern/libmv/libmv/tracking/esm_region_tracker.cc
===================================================================
--- extern/libmv/libmv/tracking/esm_region_tracker.cc	(revision 56701)
+++ extern/libmv/libmv/tracking/esm_region_tracker.cc	(working copy)
@@ -32,7 +32,12 @@
 #include "libmv/tracking/track_region.h"
 
 namespace libmv {
-
+/* Ugly but necessary fix for compilation on VS2012
+/* this file causes an Internal Compiler Error */
+// TODO: check regularly if ICE is fixed by MS!
+#if (_MSC_VER >= 1700)
+#pragma optimize("", off)
+#endif
 // TODO(keir): Reduce duplication between here and the other region trackers.
 static bool RegionIsInBounds(const FloatImage &image1,
                       double x, double y,
Index: extern/libmv/libmv/tracking/lmicklt_region_tracker.cc
===================================================================
--- extern/libmv/libmv/tracking/lmicklt_region_tracker.cc	(revision 56701)
+++ extern/libmv/libmv/tracking/lmicklt_region_tracker.cc	(working copy)
@@ -27,7 +27,12 @@
 #include "libmv/numeric/numeric.h"
 
 namespace libmv {
-
+/* Ugly but necessary fix for compilation on VS2012
+/* this file causes an Internal Compiler Error */
+// TODO: check regularly if ICE is fixed by MS!
+#if (_MSC_VER >= 1700)
+#pragma optimize("", off)
+#endif
 // TODO(keir): Reduce duplication between here and the other region trackers.
 static bool RegionIsInBounds(const FloatImage &image1,
                       double x, double y,