The pjsua Python module and the pjsua/pjsystest apps were used by the
Asterisk Test Suite for SIP simulation in dev mode builds. They are now
fully obsolete for three independent reasons:
1. **pjsua Python bindings officially deprecated upstream.** The pjproject
maintainers added `pjsip-apps/src/python/DEPRECATED.txt` directing
users to the PJSUA2 SWIG binding instead. A build-fix PR
(https://github.com/pjsip/pjproject/pull/4892) was closed by the
maintainer explicitly citing this deprecation.
2. **Removed from the Asterisk Test Suite.** As confirmed by @mbradeen:
> *"We had to get rid of pjsua when we went to Python3 because it would
> hang due to a conflict between async calls within pjsua and twisted.
> There are still some old references to tests we couldn't fully convert
> to sipp, but those are skipped."*
3. **Broken and unmaintained.** Building with Python 2.7 (the only version
`configure.ac` searched for) fails with:
```
_pjsua.c: error: 'INIT_RETURN' undeclared (first use in this function)
```
due to a bug in pjproject 2.16's `python3_compat.h` that upstream
declined to fix.
This PR removes all pjsua-related build artifacts from Asterisk's bundled
pjproject build: the pjsua and pjsystest application binaries, the deprecated
Python (`_pjsua.so`) bindings, the `asterisk_malloc_debug.c` stubs, and the
`PYTHONDEV` detection from `configure.ac`. Also removes `libpjsua` from
Asterisk's main linker flags.
DeveloperNote: The pjsua and pjsystest application binaries, the deprecated
Python pjsua bindings (`_pjsua.so`), and the `asterisk_malloc_debug.c` stub
implementations are no longer built or installed as part of the bundled
pjproject dev mode build. The `PYTHONDEV` (python2.7-dev) build dependency
is also removed. Developers who relied on the pjsua binary for Test Suite
SIP simulation should use SIPp instead, which is the current Asterisk Test
Suite standard.
Fixes: #1840
29e4e26e2a