From cbfa908d316ef46852ec6c04ecc7315308b8fa59 Mon Sep 17 00:00:00 2001
From: Andrea Mazzoleni <amadvance@gmail.com>
Date: Thu, 12 Oct 2017 23:16:59 +0200
Subject: [PATCH] Configure the SDE emulator for 64 bit

---
 configure.ac | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/configure.ac b/configure.ac
index 17f5f005..356469b1 100644
--- a/configure.ac
+++ b/configure.ac
@@ -313,17 +313,19 @@ AM_CONDITIONAL(HAVE_THREAD_CHECKER, [test x"$THREAD_CHECKER" != x])
 
 AC_ARG_ENABLE([sde],
 	[AS_HELP_STRING([--enable-sde],[enable the use of SDE emulator in testing])],
-dnl p4 -> Pentium4 with SSE2
+dnl p4p -> Pentium4 Prescott with SSE2
 dnl mrm -> Merom with SSSE3
 dnl nhm -> Nehalem with SSE4.2
 dnl hsw -> Haswell with AVX2
 dnl knl -> Knights Landing with AVX512
 	[
-	TESTENV_SSE2="$SDE -p4 --"
+	TESTENV_SSE2="$SDE -p4p --"
 	TESTENV_SSSE3="$SDE -mrm --"
 	TESTENV_SSE42="$SDE -nhm --"
 	TESTENV_AVX2="$SDE -hsw --"
 	EMULATOR=1
+	# Target CPU compatible with P4 Prescott
+	CFLAGS="$CFLAGS -march=athlon64"
 	],
 	[])
 AM_CONDITIONAL(HAVE_EMULATOR, [test x"$EMULATOR" != x])