tree 0c86bd57f5223a5b02dddd565c17bc12d8164888
parent f0875079a3b58179a4e4b9f6ecc885c1d9fa0339
author Vadim Yanitskiy <vyanitskiy@sysmocom.de> 1704719461 +0700
committer Vadim Yanitskiy <vyanitskiy@sysmocom.de> 1704719496 +0700

trau/osmo_ortp: support building without OrtpMemoryFunctions API

Recent ortp versions (v5.3.0+, maintained by linphone.org) no longer
have the memory allocator configuration API.  See the related commit:

https://gitlab.linphone.org/BC/public/ortp/-/commit/9ba9db486a61bebeb11287ea4c4acbacbcc181e8

A similar API is provided by bctoolbox, a dependency of ortp:

  void bctbx_set_memory_functions(BctoolboxMemoryFunctions *functions);

Let's support building against v5.3.0+ by checking (in ./configure)
if the old API is available.  Use talloc if possible;  otherwise
fall-back to whatever ortp uses by default (glibc's malloc).

Change-Id: I9fe6299fde81faeab86cd6645d67edd2f41e1873