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-rw-r--r--Modules/_sha3/sha3module.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/Modules/_sha3/sha3module.c b/Modules/_sha3/sha3module.c
index 67c69f2..c236387 100644
--- a/Modules/_sha3/sha3module.c
+++ b/Modules/_sha3/sha3module.c
@@ -37,8 +37,11 @@
/* opt64 uses un-aligned memory access that causes a BUS error with msg
* 'invalid address alignment' on SPARC. */
#define KeccakOpt 32
+#elif PY_BIG_ENDIAN
+ /* opt64 is not yet supported on big endian platforms */
+ #define KeccakOpt 32
#elif SIZEOF_VOID_P == 8 && defined(PY_UINT64_T)
- /* opt64 works only for 64bit platforms with unsigned int64 */
+ /* opt64 works only on little-endian 64bit platforms with unsigned int64 */
#define KeccakOpt 64
#else
/* opt32 is used for the remaining 32 and 64bit platforms */