From 368640343638c75e84402771a79b5342ebe48d2f Mon Sep 17 00:00:00 2001
From: wolfbeast <mcwerewolf@wolfbeast.com>
Date: Tue, 10 Sep 2019 10:44:10 +0200
Subject: [PATCH] Don't assume Intel architecture for compiler optimizations on
 Linux/gcc.

This only adds SSE2 flags when the CPU architecture is correct for it.
Resolves #1226
---
 build/autoconf/compiler-opts.m4 | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/build/autoconf/compiler-opts.m4 b/build/autoconf/compiler-opts.m4
index 82d0b43fc6..0848d78d9c 100644
--- a/build/autoconf/compiler-opts.m4
+++ b/build/autoconf/compiler-opts.m4
@@ -176,8 +176,13 @@ if test "$GNU_CC"; then
         CFLAGS="$CFLAGS -ffunction-sections -fdata-sections"
         CXXFLAGS="$CXXFLAGS -ffunction-sections -fdata-sections"
     fi
-    CFLAGS="$CFLAGS -fno-math-errno -msse2 -mfpmath=sse"
-    CXXFLAGS="$CXXFLAGS -fno-exceptions -fno-math-errno -msse2 -mfpmath=sse"
+    CFLAGS="$CFLAGS -fno-math-errno"
+    CXXFLAGS="$CXXFLAGS -fno-exceptions -fno-math-errno"
+
+    if test "$CPU_ARCH" = x86; then
+      CFLAGS="$CFLAGS -msse2 -mfpmath=sse"
+      CXXFLAGS="$CXXFLAGS -msse2 -mfpmath=sse"
+    fi
 
     if test -z "$CLANG_CC"; then
         case "$CC_VERSION" in