#### Pre-Submission Checklist - [x] Commit message has the format required by CONTRIBUTING guide - [x] Commits are split per component (core, individual modules, libs, utils, ...) - [x] Each component has a single commit (if not, squash them into one commit) - [x] No commits to README files for modules (changes must be done to docbook files in `doc/` subfolder, the README file is autogenerated)

#### Type Of Change - [x] Small bug fix (non-breaking change which fixes an issue) - [ ] New feature (non-breaking change which adds new functionality) - [ ] Breaking change (fix or feature that would change existing functionality)

#### Checklist: - [x] PR should be backported to stable branches - [x] Tested changes locally - [ ] Related to issue #XXXX (replace XXXX with an open issue number)

#### Description Suggest small bugfixes for CMakeLists.txt for modules and libs.

- `lib/ims` - remove libxml2 as not needed as in 5eac8fd5356cc424d87cac4b4102c99e97054414. - `dialplan` - added pcre2 lib as a depend. - `sctp` - switched searching for libsctp for linux only after 9b7719a61ab02c93939e3681cb90e9fa04f3ac5d. There's no libsctp in FreeBSD while kernel module exists, example.

You can view, comment on, or merge this pull request online at:

https://github.com/kamailio/kamailio/pull/4155

-- Commit Summary --

* lib/ims: libxml2 is not needed - removed from cmake * dialplan: cmake - add pcre2 * sctp: cmake - search for libsctp on linux only

-- File Changes --

M src/lib/ims/CMakeLists.txt (2) M src/modules/dialplan/CMakeLists.txt (6) M src/modules/sctp/CMakeLists.txt (10)

-- Patch Links --

https://github.com/kamailio/kamailio/pull/4155.patch https://github.com/kamailio/kamailio/pull/4155.diff