src/core/ngx_sha1.c:240: error: Uninitialized Value
  The value read from words[_] was never initialized.

src/core/ngx_sha1.c:240:9: 
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);
242.         STEP(F3, a, b, c, d, e, words[47], 0x8f1bbcdc);
