安装asterisk中遇到的错误

在asterisk 安装目录里执行

./configure

出现以下警告：

I want to compile the asterisk with SRTP library but in configuring the asterisk code, I get this error:

checking for the ability of -lsrtp to be linked in a shared object... no
configure: WARNING: ***
configure: WARNING: *** libsrtp could not be linked as a shared object.
configure: WARNING: *** Try compiling libsrtp manually. Configure libsrtp
configure: WARNING: *** with ./configure CFLAGS=-fPIC --prefix=/usr
configure: WARNING: *** replacing /usr with the prefix of your choice.
configure: WARNING: *** After re-installing libsrtp
configure: WARNING: *** configure script.
configure: WARNING: ***
configure: WARNING: *** If you do not need SRTP support re-run configure
configure: WARNING: *** with the --without-srtp option.

解决方法：
in SRTP folder:
make uninstall
make clean
./configure CFLAGS=-fPIC --prefix=/usr/local/lib
make
make runtest
make install
in Asterisk folder:
 cd ../../asterisk/asterisk-11.3.0/
./configure --with-srtp=/usr/local/lib
当我在SRTP目录下运行：
make runtest
出现：
[runtest] Error 254
解决方法：
在test目录下修改rtpw_test.sh 
中line 7 ： RTPW=rtpw
改为： RTPW=./rtpw
line 21：  killall rtpw 2&>/dev/null
改为：
killall rtpw 2>/dev/null
参考：http://blog.sina.com.cn/s/blog_7acb2119010199cd.html
在执行：
make progdocs
出现：
/bin/bash: line 1: doxygen: command not found
make: *** [progdocs] Error 127
解决方法：
apt-get install doxygen

在usr/lib/asterisk/modules/无chan_sip.so
解决方案：
apt-get install libcurl4-openssl-dev
(chan_sip.so依赖 res_crypto.so,而res_crypto.so 依赖openssl)
重新./configure make menuselect  make install