准备工作：
1、Perl
建议使用5.30以上版本，本人在使用时发现28的版本好像在配置openssl的时候有问题。
下载地址：http://strawberryperl.com/
ps：ActivePerl 和 Strawberry Perl 都可以
2、nasm
下载地址：https://www.nasm.us/pub/nasm/stable/
nasm需要配置环境变量
安装后打开vs编译环境（我编译的是vs2010）
验证perl和nasm是否安装成功
编译openssl
进入openssl-1.0.2j目录
执行：
Perl Configure no-asm VC-WIN32 --prefix=D:\openssl_lib
开始编译
ms\do_nasm （静态库） nmake -f ms\nt.mak nmake -f ms\nt.mak test nmake -f ms\nt.mak install
最后生成文件在openssl_lib目录下
Libevent编译
进入libevent-2.0.22-stable目录
替换Makefile.nmake内容如下：
# WATCH OUT! This makefile is a work in progress. -*- makefile -*- # # I'm not very knowledgeable about MSVC and nmake beyond their most basic # aspects. If anything here looks wrong to you, please let me know. # If OPENSSL_DIR is not set, builds without OpenSSL support. If you want # OpenSSL support, you can set the OPENSSL_DIR variable to where you # installed OpenSSL. This can be done in the environment: # set OPENSSL_DIR=c:\openssl # Or on the nmake command line: # nmake OPENSSL_DIR=C:\openssl -f Makefile.nmake # Or by uncommenting the following line here in the makefile... # OPENSSL_DIR=c:\openssl !IFDEF OPENSSL_DIR SSL_CFLAGS=/I$(OPENSSL_DIR)\include /DEVENT__HAVE_OPENSSL !ELSE SSL_CFLAGS= !ENDIF # Needed for correctness CFLAGS=/IWIN32-Code /IWIN32-Code/nmake /Iinclude /Icompat /DHAVE_CONFIG_H /DWIN32 /I. $(SSL_CFLAGS) # For optimization and warnings CFLAGS=$(CFLAGS) /Ox /W3 /wd4996 /MTd /nologo # XXXX have a debug mode LIBFLAGS=/nologo CORE_OBJS=event.obj buffer.obj bufferevent.obj bufferevent_sock.obj \ bufferevent_pair.obj listener.obj evmap.obj log.obj evutil.obj \ strlcpy.obj signal.obj bufferevent_filter.obj evthread.obj \ bufferevent_ratelim.obj evutil_rand.obj WIN_OBJS=win32select.obj evthread_win32.obj buffer_iocp.obj \ event_iocp.obj bufferevent_async.obj EXTRA_OBJS=event_tagging.obj http.obj evdns.obj evrpc.obj !IFDEF OPENSSL_DIR SSL_OBJS=bufferevent_openssl.obj SSL_LIBS=libevent_openssl.lib !ELSE SSL_OBJS= SSL_LIBS= !ENDIF ALL_OBJS=$(CORE_OBJS) $(WIN_OBJS) $(EXTRA_OBJS) $(SSL_OBJS) STATIC_LIBS=libevent_core.lib libevent_extras.lib libevent.lib $(SSL_LIBS) all: static_libs tests static_libs: $(STATIC_LIBS) libevent_core.lib: $(CORE_OBJS) $(WIN_OBJS) lib $(LIBFLAGS) $(CORE_OBJS) $(WIN_OBJS) /out:libevent_core.lib libevent_extras.lib: $(EXTRA_OBJS) lib $(LIBFLAGS) $(EXTRA_OBJS) /out:libevent_extras.lib libevent.lib: $(CORE_OBJS) $(WIN_OBJS) $(EXTRA_OBJS) lib $(LIBFLAGS) $(CORE_OBJS) $(EXTRA_OBJS) $(WIN_OBJS) /out:libevent.lib libevent_openssl.lib: $(SSL_OBJS) lib $(LIBFLAGS) $(SSL_OBJS) /out:libevent_openssl.lib clean: del $(ALL_OBJS) del $(STATIC_LIBS) tests: !IFDEF OPENSSL_DIR !ELSE !ENDIF
最后执行：
nmake /f Makefile.nmake OPENSSL_DIR=D:\openssl_lib
openssl_lib为上面生成文件路径
最后生成lib文件在当前libevent-2.0.22-stable目录
