近日，闲来无事，想了解下freeswitch的功能和代码，于是下载源码。
git clone https://freeswitch.org/stash/scm/fs/freeswitch.git
1、VS2015编译
发现有VS2015的工程，耳闻freeswitch工程巨大，但用VS2015读代码还是不错的选择，于是果断下载VS2015，打开工程，居然有208个项目，赶紧编译，可惜编译几次，每次都停在某一个项目上，无法取消，很遗憾，没有编译成功，太耗时，没有继续深究下去，以后有时间再琢磨一下。
2、CentOS下编译
没办法，转战CentOS，虚拟机已经安装好了6.5 64位系统，重新git最新版
./bootstrap.sh
./configure
make
make时出错，提示either yasm nor nasm have been found. See the prerequisites section in the README for more info.
Configuration failed. This could reflect a misconfiguration of your
toolchains, improper options selected, or another problem. If you
don't see any useful error messages above, the next step is to look
at the configure error log file (config.log) to determine what
configure was trying to do when it died.
3、编译V1.4版本
据说V1.4是目前比较稳定版本，于是：git clone -b v1.4 https://freeswitch.org/stash/scm/fs/freeswitch.git freeswitch14.
继续
./bootstrap.sh
./configure --prefix=/usr/local/freeswitch14
make
出现：
you may getting an error:
“You must install libldns-dev to build mod_enum. Stop.”
提示需要安装libldns-dev,当然也可以关闭mod_enum模块，有点轻微的强迫症，继续
yum install libldns-dev
No package libldns-dev available
Error: Nothing to do
网上查找解决方法：
先安装EPEL
yum install -y epel-release再安装
yum install ldns-devel libidn-devel unbound-devel一切顺利
接着make install
找到/usr/local/freeswith14/bin/
执行freeswitch，运行成功了。
先感受下freeswitch，有值得记录的再贴出来。