Split into PJSUA and PJMEDIA # XXX Why?
Shared libraries # XXX Does the package support it?
NetBSD patches, tweak OSS emulation compatibility

This package has known vulnerabilities, please investigate and fix if possible:
 CVE-2017-9359, CVE-2017-9372, CVE-2017-16872, CVE-2017-16875,
 CVE-2018-1000098, CVE-2018-1000099
