src/core/ngx_sha1.c:252: error: Uninitialized Value
  The value read from words[_] was never initialized.

src/core/ngx_sha1.c:252:9: 
250.         STEP(F3, a, b, c, d, e, words[55], 0x8f1bbcdc);
251.         STEP(F3, a, b, c, d, e, words[56], 0x8f1bbcdc);
252.         STEP(F3, a, b, c, d, e, words[57], 0x8f1bbcdc);
             ^
253.         STEP(F3, a, b, c, d, e, words[58], 0x8f1bbcdc);
254.         STEP(F3, a, b, c, d, e, words[59], 0x8f1bbcdc);
