src/http/modules/ngx_http_map_module.c:516: error: Integer Overflow L2
  ([0, +oo] - 1):unsigned64.

src/http/modules/ngx_http_map_module.c:393:9: <LHS trace>
391.     }
392. 
393.     if (ngx_strcmp(value[0].data, "include") == 0) {
             ^
394.         return ngx_conf_include(cf, dummy, conf);
395.     }

src/http/modules/ngx_http_map_module.c:393:9: Unknown value from: strcmp
391.     }
392. 
393.     if (ngx_strcmp(value[0].data, "include") == 0) {
             ^
394.         return ngx_conf_include(cf, dummy, conf);
395.     }

src/http/modules/ngx_http_map_module.c:510:9: Assignment
508.         }
509. 
510.         value[0].len--;
             ^
511.         value[0].data++;
512. 

src/http/modules/ngx_http_map_module.c:516:13: Binary operation: ([0, +oo] - 1):unsigned64
514. 
515.         if (value[0].data[0] == '*') {
516.             value[0].len--;
                 ^
517.             value[0].data++;
518.             rc.options = NGX_REGEX_CASELESS;
