From 1f4b6a5d5d2c1e3aaf7ca1da6720825cd075391f Mon Sep 17 00:00:00 2001
From: Martin Kroeker <martin@ruby.chemie.uni-freiburg.de>
Date: Mon, 10 Jun 2019 09:50:13 +0200
Subject: [PATCH] Remove any inadvertent use of -march=native from DYNAMIC_ARCH
 builds

from #2143, -march=native precludes use of more specific options like -march=skylake-avx512 in individual kernels, and defeats the purpose of dynamic arch anyway.
---
 cmake/arch.cmake | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/cmake/arch.cmake b/cmake/arch.cmake
index 470ea2a8f..b4547b7c9 100644
--- a/cmake/arch.cmake
+++ b/cmake/arch.cmake
@@ -73,7 +73,8 @@ if (DYNAMIC_ARCH)
     endif ()
     if (NOT NO_AVX512)
       set(DYNAMIC_CORE ${DYNAMIC_CORE} SKYLAKEX)
-    endif ()
+      string(REGEX REPLACE "-march=native" "" CMAKE_C_FLAGS ${CMAKE_C_FLAGS})
+   endif ()
     if (DYNAMIC_LIST)
 	set(DYNAMIC_CORE PRESCOTT ${DYNAMIC_LIST})
     endif ()