src/core/ngx_sha1.c:207: error: Uninitialized Value
  The value read from words[_] was never initialized.

src/core/ngx_sha1.c:207:9: 
205.         STEP(F1, a, b, c, d, e, words[12], 0x5a827999);
206.         STEP(F1, a, b, c, d, e, words[13], 0x5a827999);
207.         STEP(F1, a, b, c, d, e, words[14], 0x5a827999);
             ^
208.         STEP(F1, a, b, c, d, e, words[15], 0x5a827999);
209.         STEP(F1, a, b, c, d, e, words[16], 0x5a827999);
