diff --git a/examples/ThirdPartyLibs/Eigen/src/Core/arch/SSE/PacketMath.h b/examples/ThirdPartyLibs/Eigen/src/Core/arch/SSE/PacketMath.h
index 03c8a2c13..d3b74aca4 100644
--- a/examples/ThirdPartyLibs/Eigen/src/Core/arch/SSE/PacketMath.h
+++ b/examples/ThirdPartyLibs/Eigen/src/Core/arch/SSE/PacketMath.h
@@ -28,7 +28,7 @@ namespace internal {
 #endif
 #endif
 
-#if (defined EIGEN_VECTORIZE_AVX) && (EIGEN_COMP_GNUC_STRICT || EIGEN_COMP_MINGW) && (__GXX_ABI_VERSION < 1004)
+#if (defined EIGEN_VECTORIZE_AVX) && (EIGEN_COMP_GNUC_STRICT || EIGEN_COMP_MINGW || EIGEN_COMP_LCC_E2K) && (__GXX_ABI_VERSION < 1004)
 // With GCC's default ABI version, a __m128 or __m256 are the same types and therefore we cannot
 // have overloads for both types without linking error.
 // One solution is to increase ABI version using -fabi-version=4 (or greater).
@@ -251,7 +251,7 @@ template<> EIGEN_STRONG_INLINE Packet2d pmadd(const Packet2d& a, const Packet2d&
 #endif
 
 template<> EIGEN_STRONG_INLINE Packet4f pmin<Packet4f>(const Packet4f& a, const Packet4f& b) {
-#if EIGEN_COMP_GNUC
+#if EIGEN_COMP_GNUC && !(EIGEN_COMP_LCC_E2K)
   // There appears to be a bug in GCC, by which the optimizer may
   // flip the argument order in calls to _mm_min_ps, so we have to
   // resort to inline ASM here. This is supposed to be fixed in gcc6.3,
@@ -265,7 +265,7 @@ template<> EIGEN_STRONG_INLINE Packet4f pmin<Packet4f>(const Packet4f& a, const
 #endif
 }
 template<> EIGEN_STRONG_INLINE Packet2d pmin<Packet2d>(const Packet2d& a, const Packet2d& b) {
-#if EIGEN_COMP_GNUC
+#if EIGEN_COMP_GNUC && !(EIGEN_COMP_LCC_E2K)
   // There appears to be a bug in GCC, by which the optimizer may
   // flip the argument order in calls to _mm_min_pd, so we have to
   // resort to inline ASM here. This is supposed to be fixed in gcc6.3,
@@ -290,7 +290,7 @@ template<> EIGEN_STRONG_INLINE Packet4i pmin<Packet4i>(const Packet4i& a, const
 }
 
 template<> EIGEN_STRONG_INLINE Packet4f pmax<Packet4f>(const Packet4f& a, const Packet4f& b) {
-#if EIGEN_COMP_GNUC
+#if EIGEN_COMP_GNUC && !(EIGEN_COMP_LCC_E2K)
   // There appears to be a bug in GCC, by which the optimizer may
   // flip the argument order in calls to _mm_max_ps, so we have to
   // resort to inline ASM here. This is supposed to be fixed in gcc6.3,
@@ -304,7 +304,7 @@ template<> EIGEN_STRONG_INLINE Packet4f pmax<Packet4f>(const Packet4f& a, const
 #endif
 }
 template<> EIGEN_STRONG_INLINE Packet2d pmax<Packet2d>(const Packet2d& a, const Packet2d& b) {
-#if EIGEN_COMP_GNUC
+#if EIGEN_COMP_GNUC && !(EIGEN_COMP_LCC_E2K)
   // There appears to be a bug in GCC, by which the optimizer may
   // flip the argument order in calls to _mm_max_pd, so we have to
   // resort to inline ASM here. This is supposed to be fixed in gcc6.3,
@@ -712,7 +712,7 @@ template<> EIGEN_STRONG_INLINE int predux_max<Packet4i>(const Packet4i& a)
 #endif // EIGEN_VECTORIZE_SSE4_1
 }
 
-#if EIGEN_COMP_GNUC
+#if EIGEN_COMP_GNUC && !(EIGEN_COMP_LCC_E2K)
 // template <> EIGEN_STRONG_INLINE Packet4f pmadd(const Packet4f&  a, const Packet4f&  b, const Packet4f&  c)
 // {
 //   Packet4f res = b;
diff --git a/examples/ThirdPartyLibs/Eigen/src/Core/util/Macros.h b/examples/ThirdPartyLibs/Eigen/src/Core/util/Macros.h
index f5b071a9c..46b2659bd 100644
--- a/examples/ThirdPartyLibs/Eigen/src/Core/util/Macros.h
+++ b/examples/ThirdPartyLibs/Eigen/src/Core/util/Macros.h
@@ -35,7 +35,6 @@
   #define EIGEN_COMP_CLANG 0
 #endif
 
-
 /// \internal EIGEN_COMP_LLVM set to 1 if the compiler backend is llvm
 #if defined(__llvm__)
   #define EIGEN_COMP_LLVM 1
@@ -108,16 +107,29 @@
   #define EIGEN_COMP_ARM 0
 #endif
 
-/// \internal EIGEN_COMP_ARM set to 1 if the compiler is ARM Compiler
+/// \internal EIGEN_COMP_EMSCRIPTEN set to 1 if the compiler is Emscripten Compiler
 #if defined(__EMSCRIPTEN__)
   #define EIGEN_COMP_EMSCRIPTEN 1
 #else
   #define EIGEN_COMP_EMSCRIPTEN 0
 #endif
 
+/// \internal EIGEN_COMP_LCC set to 1 if the compiler is LCC (Local (or Little) C Compiler)
+#if defined(__LCC__) && !(defined(__e2k__))
+  #define EIGEN_COMP_LCC 1
+#else
+  #define EIGEN_COMP_LCC 0
+#endif
+
+/// \internal EIGEN_COMP_LCC_E2K set to 1 if the compiler is LCC (MCST eLbrus C Compiler)
+#if defined(__LCC__) && defined(__e2k__)
+  #define EIGEN_COMP_LCC_E2K 1
+#else
+  #define EIGEN_COMP_LCC_E2K 0
+#endif
 
 /// \internal EIGEN_GNUC_STRICT set to 1 if the compiler is really GCC and not a compatible compiler (e.g., ICC, clang, mingw, etc.)
-#if EIGEN_COMP_GNUC && !(EIGEN_COMP_CLANG || EIGEN_COMP_ICC || EIGEN_COMP_MINGW || EIGEN_COMP_PGI || EIGEN_COMP_IBM || EIGEN_COMP_ARM || EIGEN_COMP_EMSCRIPTEN)
+#if EIGEN_COMP_GNUC && !(EIGEN_COMP_CLANG || EIGEN_COMP_ICC || EIGEN_COMP_MINGW || EIGEN_COMP_PGI || EIGEN_COMP_IBM || EIGEN_COMP_ARM || EIGEN_COMP_EMSCRIPTEN || EIGEN_COMP_LCC || EIGEN_COMP_LCC_E2K)
   #define EIGEN_COMP_GNUC_STRICT 1
 #else
   #define EIGEN_COMP_GNUC_STRICT 0
@@ -210,6 +222,12 @@
   #define EIGEN_ARCH_PPC 0
 #endif
 
+/// \internal EIGEN_ARCH_E2K set to 1 if the architecture is E2K (MCST Elbrus 2000)
+#if defined(__e2k__)
+  #define EIGEN_ARCH_E2K 1
+#else
+  #define EIGEN_ARCH_E2K 0
+#endif
 
 
 // Operating system identification, EIGEN_OS_*
@@ -314,7 +332,6 @@
 #endif
 
 
-
 #if EIGEN_GNUC_AT_MOST(4,3) && !EIGEN_COMP_CLANG
   // see bug 89
   #define EIGEN_SAFE_TO_USE_STANDARD_ASSERT_MACRO 0
@@ -736,7 +753,7 @@ namespace Eigen {
   // certain common platform (compiler+architecture combinations) to avoid these problems.
   // Only static alignment is really problematic (relies on nonstandard compiler extensions),
   // try to keep heap alignment even when we have to disable static alignment.
-  #if EIGEN_COMP_GNUC && !(EIGEN_ARCH_i386_OR_x86_64 || EIGEN_ARCH_ARM_OR_ARM64 || EIGEN_ARCH_PPC || EIGEN_ARCH_IA64)
+  #if EIGEN_COMP_GNUC && !(EIGEN_ARCH_i386_OR_x86_64 || EIGEN_ARCH_ARM_OR_ARM64 || EIGEN_ARCH_PPC || EIGEN_ARCH_IA64 || EIGEN_ARCH_E2K)
   #define EIGEN_GCC_AND_ARCH_DOESNT_WANT_STACK_ALIGNMENT 1
   #elif EIGEN_ARCH_ARM_OR_ARM64 && EIGEN_COMP_GNUC_STRICT && EIGEN_GNUC_AT_MOST(4, 6)
   // Old versions of GCC on ARM, at least 4.4, were once seen to have buggy static alignment support.