This will ease transition to newer Python versions, and also removes
the apparently unnecessary restriction on 3.6. According to the upstream
build system, 3.6 is the minimum version required.
Upstream doesn't build support for these devices by default anymore:
> The actual osmosdr had only a very limited production run many years
> ago and is therefore of little interest to most gr-osmosdr users.
> Mirisdr was experimental at best, because the dongles were never
> widely avaialble outside of Japan and had multiple unconnected antenna
> ports.
Here is a very high level list of changes:
## Changed
### Project Scope
- C++11
- merged the wholeness of the `next` branch
- Dependency version bumps: CMake, GCC, MSVC, Swig, Boost
- New dependencies: MPIR/GMP, Qt5, gsm, codec2
- Removed dependencies: libusb, Qt4, CppUnit
- Python: Python 2 & Python 3 compatible. 3.8 will be the last Py2k-compatible
release series
- gengen was replaced by templates (if you don't know gengen, don't do any
research; save yourself that sorrow)
- Modern CMake (as far as feasible at this point)
- VOLK version updated to v2.0.0
- .clang-format file now dictates coding style
- clang-format'ed the whole tree.
- installed CMake files now tell about configuration
### gnuradio-runtime
- reworked fractional tag time handling, especially in the context of resamplers
### GRC
- C++ generation as option
- YAML instead of XML
- removed `blks2`
- much better canvas tooling
- consistent gobject usage
- ROUNDED ARROWS
### gr-qtgui
- moving from Qt4 to Qt5
### gr-utils
- `gr_modtool` now vastly improved
### gr-vocoder
- improved versatility
- removed in-tree libgsm, libcodec2, use system-wide libs
## Removed
### Project Scope
- Modules `gr-comedi`, `gr-fcd` and `gr-wxgui` are gone
### gr-comedi
- nobody could remember who used this, or for what. It has seen 0 active code
contributions in the 3.7 lifecycle
### gr-digital
- python-based `packet_encoder` and related tools: Bugs that were sporadic and
never fixed, so after long deprecation, we're removing it
### gr-fcd
- since it's currently untestable by the CI, it's being removed, as there was no
code contributions. Generally, we strive to include all batteries with GNU
Radio. Re-integration within a more general SDR interface would be desirable.
### gr-utils
- removed PyQwt (dead) based tools
### gr-wxgui
- Unmaintained, breaks on increasingly many systems, always was slower than
Qtgui. We've been starting to tell people to migrate to Qt since at
least 2015. Now, we're finally removing it.
