Multithreaded libcurl Crash

Thread 0 Crashed:
0   libcurl.4.dylib                0x00391e1c curl_unescape + 78
1   libcurl.4.dylib                0x003929c0 curl_unescape + 3058
2   libcurl.4.dylib                0x00393978 curl_mvsnprintf + 55
3   libcurl.4.dylib                0x003850f9 Curl_failf + 63
4   libcurl.4.dylib                0x0037d8da Curl_resolv + 95

Apparently CURLOPT_NOSIGNAL is very important in multithreaded programs...