src/core/ngx_sha1.c:258: error: Uninitialized Value
  The value read from words[_] was never initialized.

src/core/ngx_sha1.c:258:9: 
256.         STEP(F2, a, b, c, d, e, words[60], 0xca62c1d6);
257.         STEP(F2, a, b, c, d, e, words[61], 0xca62c1d6);
258.         STEP(F2, a, b, c, d, e, words[62], 0xca62c1d6);
             ^
259.         STEP(F2, a, b, c, d, e, words[63], 0xca62c1d6);
260.         STEP(F2, a, b, c, d, e, words[64], 0xca62c1d6);
