Doesn't include any allocation code for Mac

[JoeStrout]

I thought this was the Mac-savvy version of the code... but it's failing right out of the box for me on the first allocation (around line 350 of word2vec.c), because the conditional compilation doesn't include a Mac case:

#ifdef _MSC_VER
  syn0 = _aligned_malloc((long long)vocab_size * layer1_size * sizeof(real), 128);
#elif defined  linux
  a = posix_memalign((void **)&syn0, 128, (long long)vocab_size * layer1_size * sizeof(real));
#endif

Neither _MSC_VER nor linux is defined, so we simply don't allocate anything.

Just wondering if I have missed some obvious solution, or whether I need to add a Mac case (or maybe a generic case, simply using calloc?) to each such block.

[JoeStrout]

Actually, as a test, just adding #define linux 1 to the top of the file seems to fix it (i.e., the posix functions seem to apply equally well to the Mac). But I'm still not certain that's the proper solution.