Ensure memory accesses in the sha3 module are aligned on ARM as it causes
problems when running 32-bit code on a 64-bit kernel.

Patch taken from upstream bug report:
https://bugs.python.org/issue36515

--- a/Modules/_sha3/sha3module.c
+++ b/Modules/_sha3/sha3module.c
@@ -64,6 +64,12 @@
 #define PLATFORM_BYTE_ORDER IS_BIG_ENDIAN
 #endif
 
+/* Bus error on 32-bit ARM due to un-aligned memory accesses; 64-bit ARM
+ * doesn't complain but un-aligned memory accesses are sub-optimal */
+#if defined(__arm__) || defined(__aarch64__)
+#define NO_MISALIGNED_ACCESSES
+#endif
+
 /* mangle names */
 #define KeccakF1600_FastLoop_Absorb _PySHA3_KeccakF1600_FastLoop_Absorb
 #define Keccak_HashFinal _PySHA3_Keccak_HashFinal
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<tr><td><span title='2017-06-15 11:12:02 -0400'>2017-06-15</span></td><td><a href='/guix/commit/gnu/packages/patches/zziplib-CVE-2017-5978.patch?id=0c5a8007fe3cfc792bf5f692342a84165f706441'>gnu: zziplib: Fix CVE-2017-{5974,5975,5976,5978,5979,5981}.</a><span class='msg-avail'>...</span></td><td>Leo Famulari</td></tr>