#### 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 (5.3 would be nice; earlier doesn't help me) - [x] Tested changes locally (with these, the build gets vastly further)

#### Description This PR has two changes for building on NetBSD.

One is simply adding -lm to the link line for kamailio, as math functions are used.

The other is changing the use of -ldl to a variable, leaving that at -ldl most places, and setting it to empty on NetBSD. (NetBSD does not have a /usr/lib/libdl.* and dlopen does not require any link line arguments.)

I am pretty sure that my changes won't affect the build on non-NetBSD.

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

https://github.com/kamailio/kamailio/pull/2256

-- Commit Summary --

* Makefile.defs: On NetBSD, link with -lm * Makefile.defs: Only add -ldl on systems that use it

-- File Changes --

M src/Makefile.defs (13)

-- Patch Links --

https://github.com/kamailio/kamailio/pull/2256.patch https://github.com/kamailio/kamailio/pull/2256.diff