From fa53b903db657b0d5f5bfe5554c7218442c539c9 Mon Sep 17 00:00:00 2001
From: Martin Kroeker <martin@ruby.chemie.uni-freiburg.de>
Date: Wed, 10 Oct 2018 19:22:01 +0200
Subject: [PATCH] Add -march=skylake-avx512 to CFLAGS when the target is
 Skylake

Should fix 1806 and #1801
---
 cmake/system.cmake | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/cmake/system.cmake b/cmake/system.cmake
index 18b2c3b87..4dc50e64f 100644
--- a/cmake/system.cmake
+++ b/cmake/system.cmake
@@ -41,6 +41,11 @@ if (DEFINED BINARY AND DEFINED TARGET AND BINARY EQUAL 32)
   endif ()
 endif ()
 
+if (DEFINED TARGET AND ${TARGET} STREQUAL "SKYLAKEX" AND NOT NO_AVX512)
+  set (CCOMMON_OPT "${CCOMMON_OPT} -march=skylake-avx512")
+  set (FCOMMON_OPT "${FCOMMON_OPT} -march=skylake-avx512")
+endif()
+
 if (DEFINED TARGET)
   message(STATUS "Targeting the ${TARGET} architecture.")
   set(GETARCH_FLAGS "-DFORCE_${TARGET}")