linux下安装php sockets扩展，make时出错，有没有大神帮忙看看

在编译PHP时加--enable-sockets参数来启用。编译前用apt-get build-dep php5来解决信赖问题。
./configure --enable-opcache --enable-sockets --prefix=/opt/php --with-apxs2=/usr/bin/apxs2 --with-mysql=mysqlnd --with-mysqli=mysqlnd --with-pgsql=/usr --with-tidy=/usr --with-curl=/usr/bin --with-openssl-dir=/usr --with-zlib-dir=/usr --with-xpm-dir=/usr --with-pdo-pgsql=/usr --with-pdo-mysql=mysqlnd --with-xsl=/usr --with-ldap --with-xmlrpc --with-iconv-dir=/usr --with-snmp=/usr --enable-exif --enable-calendar --with-bz2=/usr --with-mcrypt=/usr --with-gd --with-jpeg-dir=/usr --with-png-dir=/usr --with-freetype-dir=/usr --enable-mbstring --enable-zip --with-pear --with-libdir=/lib/x86_64-linux-gnu --with-config-file-path=/opt