我使用的是ubuntu13.04系统，在安装nginx的时候遇到如下几个问题，然后找思路解决的，nginx 的下载与安装
wget http://nginx.org/download/nginx-1.0.11.tar.gz tar zxvf nginx-1.0.11.tar.gz ./configure make make install
安装的时候出现错误如下：
./configure: error: the HTTP rewrite module requires the PCRE library.
You can either disable the module by using --without-http_rewrite_module
option, or install the PCRE library into the system, or build the PCRE library
statically from the source with nginx by using --with-pcre=<path> option.
解决方法，安装pcre包，代码如下：
wget ftp://ftp.csx.cam.ac.uk/pub/software/programming/pcre/pcre-8.37.tar.gz tar zxvf pcre-8.37.tar.gz ./configure make make install
然后再去安装 nginx,重复第一步，结果如下，说明安装好了：
Configuration summary
+ using system PCRE library
+ OpenSSL library is not used
+ md5: using system crypto library
+ sha1: using system crypto library
+ using system zlib library
nginx path prefix: "/usr/local/nginx"
nginx binary file: "/usr/local/nginx/sbin/nginx"
nginx configuration prefix: "/usr/local/nginx/conf"
nginx configuration file: "/usr/local/nginx/conf/nginx.conf"
nginx pid file: "/usr/local/nginx/logs/nginx.pid"
nginx error log file: "/usr/local/nginx/logs/error.log"
nginx http access log file: "/usr/local/nginx/logs/access.log"
nginx http client request body temporary files: "client_body_temp"
nginx http proxy temporary files: "proxy_temp"
nginx http fastcgi temporary files: "fastcgi_temp"
nginx http uwsgi temporary files: "uwsgi_temp"
nginx http scgi temporary files: "scgi_temp"
接着启动nginx报错如下：
./nginx: error while loading shared libraries: libpcre.so.1: cannot open shared object file: No such file or directory
通过这个命令查看：ldd $(which /usr/local/nginx/sbin/nginx)
结果如下显示：
linux-vdso.so.1 => (0x00007fffa89fe000)
libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007fc08b3c3000)
libcrypt.so.1 => /lib/x86_64-linux-gnu/libcrypt.so.1 (0x00007fc08b18a000)
libpcre.so.1 => not found
libcrypto.so.1.0.0 => /lib/x86_64-linux-gnu/libcrypto.so.1.0.0 (0x00007fc08adae000)
libz.so.1 => /lib/x86_64-linux-gnu/libz.so.1 (0x00007fc08ab97000)
libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007fc08a7cd000)
/lib64/ld-linux-x86-64.so.2 (0x00007fc08b5fa000)
libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007fc08a5c9000)
解决方法：添加软链接, ln -s /usr/local/lib/libpcre.so.1 /lib/x86_64-linux-gnu/libpcre.so.1
最后启动nginx，没有报错，启动成功。