https://github.com/Blosc/python-blosc/commit/70226a70907072be607caee3da472e37a4683bae
https://github.com/Blosc/python-blosc/issues/227
https://bugs.gentoo.org/732178

From: Graham Inggs <ginggs@debian.org>
Date: Tue, 3 Aug 2021 17:11:51 +0200
Subject: [PATCH] Deactivate SSE2 and AVX2 if a CPU has no flags (#242)

Fixes #277
--- a/setup.py
+++ b/setup.py
@@ -90,8 +90,8 @@ def cmake_bool(cond):
         platforms = ['any'],
         cmake_args = [
           '-DBLOSC_DIR:PATH=%s' % os.environ.get('BLOSC_DIR', ''),
-          '-DDEACTIVATE_SSE2:BOOL=%s' % cmake_bool(('DISABLE_BLOSC_SSE2' in os.environ) or (cpu_info is None) or ('sse2' not in cpu_info['flags'])),
-          '-DDEACTIVATE_AVX2:BOOL=%s' % cmake_bool(('DISABLE_BLOSC_AVX2' in os.environ) or (cpu_info is None) or ('avx2' not in cpu_info['flags'])),
+          '-DDEACTIVATE_SSE2:BOOL=%s' % cmake_bool(('DISABLE_BLOSC_SSE2' in os.environ) or (cpu_info is None) or ('flags' not in cpu_info) or ('sse2' not in cpu_info['flags'])),
+          '-DDEACTIVATE_AVX2:BOOL=%s' % cmake_bool(('DISABLE_BLOSC_AVX2' in os.environ) or (cpu_info is None) or ('flags' not in cpu_info) or ('avx2' not in cpu_info['flags'])),
           '-DDEACTIVATE_LZ4:BOOL=%s' % cmake_bool(not int(os.environ.get('INCLUDE_LZ4', '1'))),
           # Snappy is disabled by default
           '-DDEACTIVATE_SNAPPY:BOOL=%s' % cmake_bool(not int(os.environ.get('INCLUDE_SNAPPY', '0'))),