src/core/ngx_sha1.c:273: error: Uninitialized Value
  The value read from words[_] was never initialized.

src/core/ngx_sha1.c:273:9: 
271.         STEP(F2, a, b, c, d, e, words[75], 0xca62c1d6);
272.         STEP(F2, a, b, c, d, e, words[76], 0xca62c1d6);
273.         STEP(F2, a, b, c, d, e, words[77], 0xca62c1d6);
             ^
274.         STEP(F2, a, b, c, d, e, words[78], 0xca62c1d6);
275.         STEP(F2, a, b, c, d, e, words[79], 0xca62c1d6);
