src/core/ngx_sha1.c:225: error: Uninitialized Value
  The value read from words[_] was never initialized.

src/core/ngx_sha1.c:225:9: 
223.         STEP(F2, a, b, c, d, e, words[29], 0x6ed9eba1);
224.         STEP(F2, a, b, c, d, e, words[30], 0x6ed9eba1);
225.         STEP(F2, a, b, c, d, e, words[31], 0x6ed9eba1);
             ^
226.         STEP(F2, a, b, c, d, e, words[32], 0x6ed9eba1);
227.         STEP(F2, a, b, c, d, e, words[33], 0x6ed9eba1);
