Change behaviour of `ENABLE_STATIC_RUNTIME` option:
* You can use `ENABLE_STATIC_RUNTIME` for CMake >= 3.15 without error.
* You can use your our method to set MSVC runtime library flags if none of `ENABLE_STATIC_RUNTIME` and `CMAKE_MSVC_RUNTIME_LIBRARY` were set.
Two manpages are installed by Autotools as symlinks, on some platforms
they are not visible and installation fails with error.
Install these files with renaming to avoid errors.
Related to edc513a, #m-ab-s/media-autobuild_suite#1801
* Set static runtime by default for MinGW
Autotools does the same. Also fixes bug - compiler flags for MinGW were
cleared by when ENABLE_STATIC_RUNTIME is OFF (default).
Also ENABLE_STATIC_RUNTIME option disabled for MinGW.
* Better CMake policies handling
* Add SndFile::sndfile alias library
* Don not add programs to package config-file
* Update README.md
* Fix generator expression with src/version-metadata.rc
* Fix Ogg and Opus imported targets
* Better SndFileConfig.cmake module with dependency checks
* Fix config-file package installation directory
* Prefer config-file package mode for Windows CI builds
* Update README.md
* Allow CMAKE_MSVC_RUNTIME_LIBRARY option to set MSVC ABI
* Fix some bugs in FindFLAC.cmake (closes#505)
Ogg: Introduce new functions ogg_sync_fseek(), ogg_ftell(), ogg_next_page(),
ogg_stream_next_page(), ogg_sync_last_page_before(), and
ogg_stream_unpack_page(). Use ogg_sync_* for ogg_read_first_page(). Bump libogg
version requirement from 1.1.3 to 1.3.0 as LibOgg 1.3.0 is required for
ogg_stream_pageout_fill() and ogg_stream_flush_fill().
Opus: Add opus support. Document added commands
SFC_(GET|SET)_ORIGINAL_SAMPLERATE. Added or extended tests ogg_opus_test,
compression_size_test, floating_point_test, lossy_comp_test, string_test,
external_libs_test. Change Opus to non-experimental.
