add_conan_lib cmake function is defined, that allows to add a dependency using Conan with two possible system fallbacks:
1. pkg_check_modules is invoked, if `PGK_CONFIG ...` is present
2. find_package is invoked if `FIND_PACKAGE_OPTIONS` is present and `pkg_check_modules` has failed
If `ALWAYS_ALLOW_CONAN_FALLBACK` is present - `obey_system_dependencies` will be ignored for the package
Currently, the following dependencies are retrieved using Conan:
* zlib
* expat
* wxwidgets
* libmp3lame
* libid3tag
* libmad
The last three libraries are included in this commit, as they depend on zlib.
Properly pass **arch** and **os.version** to Conan
Since XCode 10, Apple does not recommend building for macOS <10.9
Reason - 10.7 and 10.8 require libstdc++
We enforce libc++
```# Shouldn't cmake do this???
string( APPEND CMAKE_CXX_FLAGS " -stdlib=libc++" )```
While this generally works, it makes the proper dependency management tricky.
Compiler message for the library support:
```
clang: warning: libstdc++ is deprecated; move to libc++ with a minimum deployment target of OS X 10.9 [-Wdeprecated]
ld: library not found for -lstdc++
```
A special mode `audacity_obey_system_dependencies` is added, so the build will fail if we could not build against a system package for some reason.
The following packages are marked for the local build now:
* **wxWidgets**: Ubuntu lacks support for 3.1.3. We can't build against 3.0 branch.
* **portaudio**: there are issues, that prevent using a system version of portaudio.
* **sqlite3**: Ubuntu package is very dated; we care about the performance and stability.
* **nyquist**: Ubuntu has no package available.
* **vamp**: Ubuntu has no development package available.
* **portmixer**: Ubuntu has no package available.
* **sbsms**: Ubuntu package is very dated; we care about the performance and stability.
We use docker to create a clean build environment. Currently, `pkg-config` is used to locate the system libraries. There are few issues with `pkg-config` on Ubuntu:
* It does not work with `lame` and `portmidi`.
* The packaged files for `id3tag` and `mad` have wrong version.
We fix such cases by copying the
into `/usr/local/lib`.
... It will be used as a target link library of some lower level Audacity
libraries, to be separated from the executable.
These libraries will have link time dependency only on the wxBase subset of
non-monolithic wxWidgets builds.
More, they are restricted to use only a proper subset of wxBase functionality:
they are prevented, at compile time, not only from using any graphical user
interface, but also from using the main event loop or global application object
-- though these things are also in wxBase.
They may still use things like strings, files, threads, atomics, and other
utilities that may have modern C++ standard library equivalents.
It would be preferable to use those, but it is not a priority to make those
rewrites.
... BSD version of sed doesn't use all the same options.
So the script was misinterpreting .po file names as sed commands and not doing
what was intended, and set -o errexit caused early abort of the script.
Update pl.po from Transifex
Changes:
All 'at least' translated as 'przynajmniej'.
All 'selection' translated as 'zaznaczenie'.
And a few small fixes.
END of fixes 😁
Greetings,
Gootector
... The first is an example of a Setting with a computed default value.
Also making a new file to hold them, separate from the GUI that changes them
in QualityPrefs; fewer things depend on QualityPrefs
... Giving many examples of use of Settings objects. Many other rewrites like
this should be made to eliminate as many direct uses of gPrefs as we can.
Don't rely on long distance coincidences of literals for paths or defaults.
For each of several paths like /AudioIO/Host, all uses of that path are replaced
with use of a global Settings object defined in one place, in AudioIOBase. The
object also gives the benefit of caching the last-read or written value.
Other users of those preferences must then include "AudioIOBase.h" to make the
dependency explicit at compile time.
It should be checked that no other mentions of those paths remain in the source,
and that there was no unintended change in default values.
This also inverts dependency of AudioIOBase on RecordingPrefs, which is GUI for
changing some of these settings.
... the intention being, that no string literal for a path, or its default
value, shall ever occur twice in the code, relying on long-distance coincidence
of literal values. Instead, a named Setting object is constructed once, then
read and written.
For now, the Tie... functions in ShuttleGuiBase will take references to
implicitly constructed temporary Setting objects. But all should later be
made static objects, and the constructors made explicit.
... Exhaustive examination convinces me that Set Labels and Set Envelope are
the only two needing this. (The special problems of Open Project merited a
different bug number 2764.)
