Disable CPU optimizations not supported by all x86_64 systems.

--- a/cmake/modules/SIMDExt.cmake	2017-03-23 22:22:58.254071694 +0100
+++ b/cmake/modules/SIMDExt.cmake	2017-03-23 22:23:22.446848845 +0100
@@ -5,11 +5,6 @@
 # HAVE_ARM_NEON
 # HAVE_INTEL_SSE
 # HAVE_INTEL_SSE2
-# HAVE_INTEL_SSE3
-# HAVE_INTEL_SSSE3
-# HAVE_INTEL_PCLMUL
-# HAVE_INTEL_SSE4_1
-# HAVE_INTEL_SSE4_2
 #
 # SIMD_COMPILE_FLAGS
 #
@@ -85,26 +80,6 @@
       if(HAVE_INTEL_SSE2)
         set(SIMD_COMPILE_FLAGS "${SIMD_COMPILE_FLAGS} -msse2")
       endif()
-      CHECK_C_COMPILER_FLAG(-msse3 HAVE_INTEL_SSE3)
-      if(HAVE_INTEL_SSE3)
-        set(SIMD_COMPILE_FLAGS "${SIMD_COMPILE_FLAGS} -msse3")
-      endif()
-      CHECK_C_COMPILER_FLAG(-mssse3 HAVE_INTEL_SSSE3)
-      if(HAVE_INTEL_SSSE3)
-        set(SIMD_COMPILE_FLAGS "${SIMD_COMPILE_FLAGS} -mssse3")
-      endif()
-      CHECK_C_COMPILER_FLAG(-mpclmul HAVE_INTEL_PCLMUL)
-      if(HAVE_INTEL_PCLMUL)
-        set(SIMD_COMPILE_FLAGS "${SIMD_COMPILE_FLAGS} -mpclmul")
-      endif()
-      CHECK_C_COMPILER_FLAG(-msse4.1 HAVE_INTEL_SSE4_1)
-      if(HAVE_INTEL_SSE4_1)
-        set(SIMD_COMPILE_FLAGS "${SIMD_COMPILE_FLAGS} -msse4.1")
-      endif()
-      CHECK_C_COMPILER_FLAG(-msse4.2 HAVE_INTEL_SSE4_2)
-      if(HAVE_INTEL_SSE4_2)
-        set(SIMD_COMPILE_FLAGS "${SIMD_COMPILE_FLAGS} -msse4.2")
-      endif()
     endif(CMAKE_SYSTEM_PROCESSOR MATCHES "amd64|x86_64|AMD64")
   endif(CMAKE_SYSTEM_PROCESSOR MATCHES "i686|amd64|x86_64|AMD64")
 elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "(powerpc|ppc)64le")
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<div class='path'>path: <a href='/guix/log/?id=0be51fe03bf2b8f3ef009929fa0860e17aa15de4'>root</a>/<a href='/guix/log/gnu?id=0be51fe03bf2b8f3ef009929fa0860e17aa15de4'>gnu</a>/<a href='/guix/log/gnu/packages?id=0be51fe03bf2b8f3ef009929fa0860e17aa15de4'>packages</a>/<a href='/guix/log/gnu/packages/serialization.scm?id=0be51fe03bf2b8f3ef009929fa0860e17aa15de4'>serialization.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/packages/serialization.scm?id=0be51fe03bf2b8f3ef009929fa0860e17aa15de4&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2023-09-17 16:22:03 -0400'>2023-09-17</span></td><td><a href='/guix/commit/gnu/packages/serialization.scm?id=a6170fcd2ba1b4b677399f048bdcd7a5701775af'>gnu: Remove extraneous imports.</a><span class='msg-avail'>...<span class='msg-tooltip'>Found by running 'guild compile -W3 gnu/packages/$module.scm', using guild
from the upcoming Guile.

* gnu/packages/admin.scm: Remove extraneous imports.
* gnu/packages/avr.scm: Likewise.
* gnu/packages/base.scm: Likewise.
* gnu/packages/bootloaders.scm: Likewise.
* gnu/packages/firmware.scm: Likewise.
* gnu/packages/linphone.scm: Likewise.
* gnu/packages/telephony.scm: Likewise.
* gnu/packages/cran.scm: Likewise.
* gnu/packages/kde.scm: Likewise.
* gnu/packages/libcanberra.scm: Likewise.
* gnu/packages/libreoffice.scm: Likewise.
* gnu/packages/mes.scm: Likewise.
* gnu/packages/mingw.scm: Likewise.
* gnu/packages/serialization.scm: Likewise.
* gnu/packages/sync.scm: Likewise.
* gnu/packages/syncthing.scm: Likewise.
* gnu/packages/terminals.scm: Likewise.
* gnu/packages/version-control.scm: Likewise.
* gnu/packages/video.scm: Likewise.
* gnu/packages/wm.scm: Likewise.
* gnu/packages/emulators.scm: Likewise.

Reviewed-by: Ludovic Courtès &lt;ludo@gnu.org&gt;
</span></span></td><td>Maxim Cournoyer</td></tr>
<tr><td><span title='2023-09-08 10:53:37 +0200'>2023-09-08</span></td><td><a href='/guix/commit/gnu/packages/serialization.scm?id=3eb77954f969df41c000e7018a6b598b9f562d8d'>gnu: tensorflow-lite: Update to 2.12.1.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/algebra.scm (eigen-for-tensorflow-lite): Remove variable.
* gnu/packages/machine-learning.scm (tensorflow-lite): Update to 2.12.1
[arguments]&lt;configure-flags&gt;: Turn on GPU and RUY use; Use cmake to
find packages already in Guix as dependencies for absl-cpp, eigen,
flatbuffer, neon2ssl, cpuinfo, ruy.
[arguments]&lt;phases&gt;: Remove operations setting up absl-cpp, eigen, ruy,
and neon2ssl as native inouts as now we use Guix's packages of these
as dependencies. Do default build phase.
Add steps to install C shared library and benchmark_model tool.
[inputs]: Add cpuinfo, eigen, fp16, mesa-header, opencl,
pthreadpool, ruy, vulkan and xnnpack as explicit inputs.
[native-inputs]: Remove local setup of neon2ssl and ruy
as we now use Guix's packages of these as explicit dependencies.
* gnu/packages/serialization.scm (flatbuffers-next-shared): New variable,
flatbuffers-next built with -fPIC as needed by tensorflow-lite.

Signed-off-by: Ricardo Wurmus &lt;rekado@elephly.net&gt;
</span></span></td><td>Andy Tai</td></tr>
<tr><td><span title='2023-07-30 02:00:00 +0200'>2023-07-30</span></td><td><a href='/guix/commit/gnu/packages/serialization.scm?id=b4e790988e6c44d0116d2a8e59c8658bc2d168fc'>gnu: capnproto: Update to 1.0 [fixes CVE-2022-46149].</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/serialization.scm (capnproto): Update to 1.0.
[arguments]: Remove obsolete 'do-not-require-/etc/services phase.
Don't explicitly return #t from phases.
</span></span></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2023-07-29 14:32:57 -0300'>2023-07-29</span></td><td><a href='/guix/commit/gnu/packages/serialization.scm?id=ecdcafc007e3a06647e02e2077e0ff352b38c06f'>gnu: python-msgspec: Regenerate autogenerated file.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/serialization.scm (python-msgspec)[source]: Add a snippet to
delete autogenerated "msgspec/atof_consts.h".
[arguments]: Add new phase to regenerate that file.
</span></span></td><td>Vinicius Monego</td></tr>
<tr><td><span title='2023-06-25 18:20:43 -0300'>2023-06-25</span></td><td><a href='/guix/commit/gnu/packages/serialization.scm?id=41e8726c8924e9f5b79a9f44fad94ab5586bfc50'>gnu: Add python-msgspec.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/serialization.scm (python-msgspec): New variable.

Signed-off-by: Vinicius Monego &lt;monego@posteo.net&gt;
</span></span></td><td>Sharlatan Hellseher</td></tr>
<tr><td><span title='2023-05-03 12:36:08 +0200'>2023-05-03</span></td><td><a href='/guix/commit/gnu/packages/serialization.scm?id=9b9883c7730606a616f63e1a4a35b9735be5e9f6'>gnu: Add libfyaml.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/serialization.scm (libfyaml): New variable.

Signed-off-by: Nicolas Goaziou &lt;mail@nicolasgoaziou.fr&gt;
</span></span></td><td>Alexey Abramov</td></tr>