From 175eddd1fa6b59065cd8c91d708023308ff43b18 Mon Sep 17 00:00:00 2001
From: Erik Hofman <erik@ehofman.com>
Date: Fri, 16 Dec 2016 11:05:03 +0100
Subject: [PATCH] Add the proper SSE options to Clang too

---
 CMakeLists.txt                | 8 +++++++-
 CMakeModules/DetectArch.cmake | 2 +-
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index cd0f695a..2b3f85d9 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -349,7 +349,7 @@ if(CMAKE_COMPILER_IS_GNUCXX)
         GCC_ATOMIC_BUILTINS_FOUND)
 endif(CMAKE_COMPILER_IS_GNUCXX)
 
-if (CMAKE_CXX_COMPILER_ID STREQUAL "Clang" OR CMAKE_CXX_COMPILER_ID STREQUAL "AppleClang")
+if (CLANG)
     # Boost redeclares class members
     set(WARNING_FLAGS_CXX "-Wall -Wno-overloaded-virtual -Wno-redeclared-class-member")
     set(WARNING_FLAGS_C   "-Wall")
@@ -360,6 +360,12 @@ if (CMAKE_CXX_COMPILER_ID STREQUAL "Clang" OR CMAKE_CXX_COMPILER_ID STREQUAL "Ap
     if (CMAKE_VERSION VERSION_LESS 3.1)
        set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
     endif()
+
+    if(ENABLE_SIMD)
+      if (X86 OR X86_64)
+        set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -msse3 -mfpmath=sse")
+      endif()
+    endif()
 endif()
 
 if(CMAKE_COMPILER_IS_GNUCXX OR CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
diff --git a/CMakeModules/DetectArch.cmake b/CMakeModules/DetectArch.cmake
index 33849d1a..9b2d8a9c 100644
--- a/CMakeModules/DetectArch.cmake
+++ b/CMakeModules/DetectArch.cmake
@@ -16,7 +16,7 @@ ELSEIF(CMAKE_SYSTEM_PROCESSOR MATCHES mips)
     SET(MIPS 1)
 ENDIF()
 
-IF ("${CMAKE_C_COMPILER_ID}" STREQUAL "Clang")
+IF ("${CMAKE_C_COMPILER_ID}" STREQUAL "Clang" OR "${CMAKE_C_COMPILER_ID}" STREQUAL "AppleClang")
   # using Clang
   SET(CLANG 1)
 ELSEIF ("${CMAKE_C_COMPILER_ID}" STREQUAL "TinyCC")