Copied from Debian.

Description: Disable SSE2 code on i386
 This patch is not complete. A high-graded solution may use automatic switching
 between SSE2 and C++ implementations based on the results of runtime checks.
 The webrtc code already provides for one of them inside its GetCPUInfo function.
Bug-Debian: https://bugs.debian.org/892823
Author: Nicholas Guriev <guriev-ns@ya.ru>
Last-Update: Tue, 29 Jan 2019 23:26:38 +0300

--- a/libtgvoip.gyp
+++ b/libtgvoip.gyp
@@ -871,11 +871,7 @@
                 'WEBRTC_POSIX',
               ],
               'conditions': [
-                [ '"<!(uname -m)" == "i686"', {
-                  'cflags_cc': [
-                    '-msse2',
-                  ],
-                }], ['"<!(uname -s)" == "Linux"', {
+                [ '"<!(uname -s)" == "Linux"', {
                   'defines': [
                     'WEBRTC_LINUX',
                   ],
--- a/webrtc_dsp/rtc_base/system/arch.h
+++ b/webrtc_dsp/rtc_base/system/arch.h
@@ -28,7 +28,10 @@
 #define WEBRTC_ARCH_64_BITS
 #define WEBRTC_ARCH_LITTLE_ENDIAN
 #elif defined(_M_IX86) || defined(__i386__)
+#if defined(__SSE2__)
+// This macro is mostly used to detect SSE2 extension.
 #define WEBRTC_ARCH_X86_FAMILY
+#endif
 #define WEBRTC_ARCH_X86
 #define WEBRTC_ARCH_32_BITS
 #define WEBRTC_ARCH_LITTLE_ENDIAN
--- a/webrtc_dsp/typedefs.h
+++ b/webrtc_dsp/typedefs.h
@@ -28,7 +28,10 @@
 #define WEBRTC_ARCH_64_BITS
 #define WEBRTC_ARCH_LITTLE_ENDIAN
 #elif defined(_M_IX86) || defined(__i386__)
+#if defined(__SSE2__)
+// This macro is mostly used to detect SSE2 extension.
 #define WEBRTC_ARCH_X86_FAMILY
+#endif
 #define WEBRTC_ARCH_X86
 #define WEBRTC_ARCH_32_BITS
 #define WEBRTC_ARCH_LITTLE_ENDIAN
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<div class='path'>path: <a href='/guix/log/?id=98908e0777889aeec2796dbdc4f0809a1898dd3b'>root</a>/<a href='/guix/log/gnu?id=98908e0777889aeec2796dbdc4f0809a1898dd3b'>gnu</a>/<a href='/guix/log/gnu/home?id=98908e0777889aeec2796dbdc4f0809a1898dd3b'>home</a>/<a href='/guix/log/gnu/home/services?id=98908e0777889aeec2796dbdc4f0809a1898dd3b'>services</a>/<a href='/guix/log/gnu/home/services/music.scm?id=98908e0777889aeec2796dbdc4f0809a1898dd3b'>music.scm</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/gnu/home/services/music.scm?id=98908e0777889aeec2796dbdc4f0809a1898dd3b&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2024-08-28 16:37:31 +0200'>2024-08-28</span></td><td><a href='/guix/commit/gnu/home/services/music.scm?id=1fb4c399ea14aeeaa559bdd600da77ed2869c43b'>home: services: Add home-beets-service-type.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/home/services/music.scm: New file.
* gnu/local.mk: Add this.
* doc/guix.texi: Document this.

Change-Id: Idc23a68276cb3fb07733bb38bc38b1c5a63c1d6a
Signed-off-by: Ludovic Courtès &lt;ludo@gnu.org&gt;
</span></span></td><td>Fabio Natali</td></tr>