diff -up Clp-releases-1.17.5/Clp/src/ClpPackedMatrix.cpp.orig Clp-releases-1.17.5/Clp/src/ClpPackedMatrix.cpp
--- Clp-releases-1.17.5/Clp/src/ClpPackedMatrix.cpp.orig	2020-02-03 06:32:17.000000000 -0700
+++ Clp-releases-1.17.5/Clp/src/ClpPackedMatrix.cpp	2020-02-20 09:58:51.057918125 -0700
@@ -6778,8 +6778,9 @@ ClpPackedMatrix3::ClpPackedMatrix3(ClpSi
   //#undef COIN_AVX2
   //#define COIN_AVX2 8
   //#define NO_AVX_HARDWARE
-#ifndef COIN_AVX2
-#define COIN_AVX2 4
+#if 1
+#define COIN_AVX2 1
+#define NO_AVX_HARDWARE
 #else
 #if COIN_AVX2 == 4
 #ifndef NO_AVX_HARDWARE
diff -up Clp-releases-1.17.5/Clp/src/ClpSimplexDual.cpp.orig Clp-releases-1.17.5/Clp/src/ClpSimplexDual.cpp
--- Clp-releases-1.17.5/Clp/src/ClpSimplexDual.cpp.orig	2020-02-20 09:58:51.059918089 -0700
+++ Clp-releases-1.17.5/Clp/src/ClpSimplexDual.cpp	2020-02-20 10:00:22.752278429 -0700
@@ -3554,6 +3554,7 @@ void moveAndZero(clpTempInfo *info, int
   }
 }
 #endif
+#undef COIN_AVX2
 #ifdef _MSC_VER
 #include <intrin.h>
 #elif defined(__ARM_FEATURE_SIMD32) || defined(__ARM_NEON)
diff -up Clp-releases-1.17.5/Clp/src/CoinAbcHelperFunctions.cpp.orig Clp-releases-1.17.5/Clp/src/CoinAbcHelperFunctions.cpp
--- Clp-releases-1.17.5/Clp/src/CoinAbcHelperFunctions.cpp.orig	2020-02-03 06:32:17.000000000 -0700
+++ Clp-releases-1.17.5/Clp/src/CoinAbcHelperFunctions.cpp	2020-02-20 09:58:51.059918089 -0700
@@ -11,7 +11,8 @@
 #include "CoinTypes.hpp"
 #include "CoinFinite.hpp"
 #include "CoinAbcCommon.hpp"
-//#define AVX2 1
+#undef AVX2
+#define AVX2 0
 #if AVX2 == 1
 #define set_const_v2df(bb, b)                         \
   {                                                   \