【发布时间】：2016-11-04 04:32:48
【问题描述】：
我正在按照本教程在 php 5.6 中启用线程安全。
https://blog.bensoer.com/compile-thread-safe-php-5-6-20-from-source/
但是当我执行sudo apt-get install -y php5-dev 时，它给了我以下输出。
Reading package lists... Done
Building dependency tree
Reading state information... Done
Package php5-dev is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source
E: Package 'php5-dev' has no installation candidate
如何在 Ubuntu 16.04 中解决此问题？
【问题讨论】：
标签： php ubuntu thread-safety ubuntu-16.04