varnish undefined reference to pcre_free_study

场景：configure没问题，但make时报错：
undefined reference to pcre_free_study

collect2: ld returned 1 exit status

make[3]: *** [varnishadm] Error 1

make[3]: Leaving directory `/home/liuxiaojie/varnish-3.0.3/bin/varnishadm'

make[2]: *** [all-recursive] Error 1

make[2]: Leaving directory `/home/liuxiaojie/varnish-3.0.3/bin'

make[1]: *** [all-recursive] Error 1

make[1]: Leaving directory `/home/liuxiaojie/varnish-3.0.3'

make: *** [all] Error 2
见附件！

原因及解决方法如下：

原因：pcre版本的问题

我的pcre版本：

解决方法：

升级pcre，我下载的版本为：pcre-8.20.tar.gz

  tar zxvf pcre-8.20.tar.gz

  cd pcre-8.20

   ./configure  --prefix=/usr/local/pcre

  cd /usr/local/pcre/

  export PKG_CONFIG_PATH=/usr/local/pcre/lib/pkgconfig/

安装varnish3.0.3步骤：

  ./configure --enable-debugging-symbols --enable-developer-warnings --enable-dependency-tracking --prefix=/usr/local/varnish3

    make

    make  install