Resolution "Missing Print_winsock_errors.obj" is reported when Windows compiles libevent

First, the summary

Libevent is a lightweight, open source high-performance event notification library written in C.

In the Libevent official website (http://libevent.org) Download the source package, in the Windows platform compile, will be reported missing "Print_winsock_errors.obj" error.

Second, reason and solution

checked, this is because the file is missing from the source package TEST/PRINT_WINSOCK_ERRORS.C caused, the cause is unknown.

workaround: Generate Manually TEST/PRINT_WINSOCK_ERRORS.C, here's what the code is searching for from git:

#include <winsock2.h>#include<windows.h>#include<stdlib.h>#include<stdio.h>#include"event2/event.h"#include"event2/util.h"#include"event2/thread.h"#defineE (x) printf (#x "\"%s\ "\ n", evutil_socket_error_to_string (x));intMain (intargcChar**argv) {  intI, J; Const Char*S1, *S2, #ifdef evthread_use_windows_threads_implemented evthread_use_windows_threads ();#endifS1=evutil_socket_error_to_string (WSAEINTR);  for(i =0; I <3; i++) {printf ("\niteration%d:\n\n", I);    E (WSAEINTR);    E (wsaeacces);    E (Wsaefault);    E (Wsaeinval);    E (Wsaemfile);    E (Wsaewouldblock);    E (wsaeinprogress);    E (Wsaealready);    E (Wsaenotsock);    E (Wsaedestaddrreq);    E (wsaemsgsize);    E (Wsaeprototype);    E (wsaenoprotoopt);    E (Wsaeprotonosupport);    E (Wsaesocktnosupport);    E (Wsaeopnotsupp);    E (Wsaepfnosupport);    E (Wsaeafnosupport);    E (Wsaeaddrinuse);    E (Wsaeaddrnotavail);    E (Wsaenetdown);    E (Wsaenetunreach);    E (Wsaenetreset);    E (wsaeconnaborted);    E (Wsaeconnreset);    E (WSAENOBUFS);    E (Wsaeisconn);    E (Wsaenotconn);    E (Wsaeshutdown);    E (wsaetimedout);    E (WSAECONNREFUSED);    E (Wsaehostdown);    E (Wsaehostunreach);    E (Wsaeproclim);    E (Wsasysnotready);    E (wsavernotsupported);    E (wsanotinitialised);    E (Wsaediscon);    E (Wsatype_not_found);    E (Wsahost_not_found);    E (Wsatry_again);    E (Wsano_recovery);    E (Wsano_data); E (0xdeadbeef);/*test the case where no message is available*/    /*fill up the hash table a bit to make sure it grows properly*/     for(j =0; J < -; J + +) {      interr; Evutil_secure_rng_get_bytes (&err,sizeof(err));    Evutil_socket_error_to_string (ERR); }} s2=evutil_socket_error_to_string (WSAEINTR); if(S1! =S2) printf ("Caching failed!\n");  Libevent_global_shutdown (); returnexit_success;}

Then use the VS Command prompt tool, execute under the libevent decompression directory: nmake/f Makefile.nmake, compile successfully.

Third, other

After inspection, in the official website listed 1.4.x-stable, 2.0.x-stable, 2.1.x-stable and other versions appear to have this problem.

PRINT_WINSOCK_ERRORS.C There is only one test code, and it doesn't matter much, so another workaround is to modify the Cmakefilelist and remove the print_winsock_errors-related content from it.

Resolution "Missing Print_winsock_errors.obj" is reported when Windows compiles libevent