In zabbix documentation we stated that we need libpcre3, which may mislead in some cases.
For example on SLES12sp3, there is a package libpcre1, which is really required, but libpcre3 is missing at all.

Also official PCRE documentation says:

There are two major versions of the PCRE library. The newest version, PCRE2, first released in 2015, is now at version 10.31.

The original, widely deployed PCRE library, originally released in 1997, is at version 8.41, and the API and feature set are stable— future releases will be for bugfixes only. Any new features will be added to PCRE2, and not to the PCRE 8.x series.

I.e. we need more older version 1 than 2.
It would be good to avoid such misunderstanding and specify exact versions of libraries, not packages.
Something like this:

...
The naming may differ depending on the GNU/Linux distribution, for example libpcre3 or libpcre1. Note that you need exactly PCRE (v8.x); PCRE2 (v10.x) library is not used.

Also, in 1st column I'd suggest to replace libpcre3 by just libpcre.