From 73c0db82d5fd50300d9ebcb3280bcb69f7cf7e21 Mon Sep 17 00:00:00 2001
From: Peter Boyle <paboyle@ph.ed.ac.uk>
Date: Thu, 23 Apr 2015 08:02:51 +0100
Subject: [PATCH] Better description of Intel's many ISA targets

---
 configure.ac | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/configure.ac b/configure.ac
index 647b5e30..b6e73bcb 100644
--- a/configure.ac
+++ b/configure.ac
@@ -27,7 +27,9 @@ AC_TYPE_UINT64_T
 # Checks for library functions.
 AC_CHECK_FUNCS([gettimeofday])
 
-AC_ARG_ENABLE([simd],[AC_HELP_STRING([--enable-simd=SSE|AVX|AVX2|AVX512],[Select instructions])],[ac_SIMD=${enable_simd}],[ac_SIMD=AVX2])
+AC_ARG_ENABLE([simd],[AC_HELP_STRING([--enable-simd=SSE|AVX|AVX2|AVX512|MIC],\
+	[Select instructions to be SSE4.0, AVX 1.0, AVX 2.0+FMA, AVX 512, MIC])],\
+	[ac_SIMD=${enable_simd}],[ac_SIMD=AVX2])
 
 case ${ac_SIMD} in
      SSE4)
@@ -42,8 +44,8 @@ case ${ac_SIMD} in
        echo Configuring for AVX2
        AC_DEFINE([AVX2],[1],[AVX2] )
      ;;
-     AVX512)
-       echo Configuring for AVX512
+     AVX512|MIC)
+       echo Configuring for AVX512 and MIC
        AC_DEFINE([AVX512],[1],[AVX512] )
      ;;
      *)