src/core/ngx_sha1.c:203: error: Uninitialized Value
  The value read from words[_] was never initialized.

src/core/ngx_sha1.c:203:9: 
201.         STEP(F1, a, b, c, d, e, words[8],  0x5a827999);
202.         STEP(F1, a, b, c, d, e, words[9],  0x5a827999);
203.         STEP(F1, a, b, c, d, e, words[10], 0x5a827999);
             ^
204.         STEP(F1, a, b, c, d, e, words[11], 0x5a827999);
205.         STEP(F1, a, b, c, d, e, words[12], 0x5a827999);
