src/core/ngx_sha1.c:268: error: Uninitialized Value
  The value read from words[_] was never initialized.

src/core/ngx_sha1.c:268:9: 
266.         STEP(F2, a, b, c, d, e, words[70], 0xca62c1d6);
267.         STEP(F2, a, b, c, d, e, words[71], 0xca62c1d6);
268.         STEP(F2, a, b, c, d, e, words[72], 0xca62c1d6);
             ^
269.         STEP(F2, a, b, c, d, e, words[73], 0xca62c1d6);
270.         STEP(F2, a, b, c, d, e, words[74], 0xca62c1d6);
