src/http/modules/ngx_http_scgi_module.c:1896: error: Uninitialized Value
  The value read from cv.lengths was never initialized.

src/http/modules/ngx_http_scgi_module.c:1896:9: 
1894.     }
1895. 
1896.     if (cv.lengths != NULL) {
              ^
1897. 
1898.         scf->upstream.cache_value = ngx_palloc(cf->pool,
