src/core/ngx_sha1.c:239: error: Uninitialized Value
  The value read from words[_] was never initialized.

src/core/ngx_sha1.c:239:9: 
237.         STEP(F3, a, b, c, d, e, words[42], 0x8f1bbcdc);
238.         STEP(F3, a, b, c, d, e, words[43], 0x8f1bbcdc);
239.         STEP(F3, a, b, c, d, e, words[44], 0x8f1bbcdc);
             ^
240.         STEP(F3, a, b, c, d, e, words[45], 0x8f1bbcdc);
241.         STEP(F3, a, b, c, d, e, words[46], 0x8f1bbcdc);
