c-blosc-1.5.0 compilation broken on non-SSE2 platforms

[skororu]

See discussion here : https://trac.macports.org/ticket/45964#comment:6

On the test platform, if I compare c-blosc-1.4.1 (which compiles) and c-blosc-1.5.0 (which doesn't), the definitions of shuffle and unshuffle were updated in 1.5.0 in shuffle.h to make the argument _src const, but the change wasn't reflected in lines 493 and 498 (the conditionally executed non-SSE2 section) of shuffle.c.

This fixes the issue:

#else   /* no __SSE2__ available */

void shuffle(size_t bytesoftype, size_t blocksize,
             const uint8_t* _src, uint8_t* _dest) {
  _shuffle(bytesoftype, blocksize, _src, _dest);
}

void unshuffle(size_t bytesoftype, size_t blocksize,
               const uint8_t* _src, uint8_t* _dest) {
  _unshuffle(bytesoftype, blocksize, _src, _dest);
}

#endif  /* __SSE2__ */

[FrancescAlted]

Fixed in rev ebca8a2.