$NetBSD: patch-src_x86_x86cpu.h,v 1.1 2024/09/02 16:04:24 nia Exp $

From: "Timothy B. Terriberry" <tterribe@xiph.org>
Date: Mon, 15 Apr 2024 11:27:25 -0700
Subject: [PATCH] Fix compilation errors.

vec_avx.h needs x86cpu.h, and x86cpu.h needs to detect SSE2 (or
 greater) without the Opus macros.
Also, nobody was defining OPUS_CLEAR (but several things were
 including the non-existent os_support.h where it is defined in
 libopus), so replace those calls with RNN_CLEAR and remove the
 erroneous includes.
Take the opportunity to hoist OPUS_GNUC_PREREQ to common.h, too,
 since it is needed in multiple places now.

--- src/x86/x86cpu.h.orig	2024-04-15 01:07:37.000000000 +0000
+++ src/x86/x86cpu.h
@@ -36,8 +36,8 @@
 int opus_select_arch(void);
 # endif
 
-# if defined(OPUS_X86_MAY_HAVE_SSE2)
-#  include "opus_defines.h"
+# if defined(__SSE2__)
+#  include "common.h"
 
 /*MOVD should not impose any alignment restrictions, but the C standard does,
    and UBSan will report errors if we actually make unaligned accesses.