安装php7.2-dev扩展的过程是什么？

我正在尝试安装php7.2-dev，但这取决于依赖关系，我在这些依赖关系上搜索了很多，但无法解决问题

sudo apt install php7.2-dev
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
 php7.2-dev : Depends: autoconf (>= 2.63) but it is not installable
              Depends: automake (>= 1.11) but it is not installable
              Depends: libssl-dev but it is not installable
              Depends: pkg-config but it is not installable
              Depends: shtool but it is not installable
              Depends: libtool (>= 2.4.6-0.1~) but it is not installable
              Recommends: pkg-php-tools but it is not installable
E: Unable to correct problems, you have held broken packages.

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