123 lines
4.2 KiB
Markdown
123 lines
4.2 KiB
Markdown
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Dependencies {#dependencies}
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============
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Dependencies
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------------
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### libopenmpt
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* Supported compilers for building libopenmpt:
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* **Microsoft Visual Studio 2017** or higher, running on a amd64 build
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system (other target systems are supported)
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Please note that we do not support building with a later Visual Studio
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installation with an earlier compiler version. This is because, while
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later Visual Studio versions allow installing earlier compilers to be
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available via the later version's environment, in this configuration,
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the earlier compiler will still use the later C and C++ runtime's
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headers and implementation, which significantly increases the matrix of
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possible configurations to test.
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* **GCC 8.1** or higher
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* **Clang 7** or higher
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* **MinGW-W64 8.1** or higher (it is recommended to preferably use
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posix threading model as opposed to win32 threading model)
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* **emscripten 1.39.1** or higher
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* **DJGPP GCC 8.1** or higher
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* any other **C++17 compliant** compiler
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libopenmpt makes the following assumptions about the C++ implementation
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used for building:
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* `std::numeric_limits<unsigned char>::digits == 8` (enforced by
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static_assert)
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* existence of `std::uintptr_t` (enforced by static_assert)
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* in C++20 mode, `std::endian::little != std::endian::big` (enforced
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by static_assert)
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* `wchar_t` encoding is either UTF-16 or UTF-32 (implicitly assumed)
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* representation of basic source character set is ASCII (implicitly
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assumed)
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* representation of basic source character set is identical in char
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and `wchar_t` (implicitly assumed)
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libopenmpt does not rely on any specific implementation defined or
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undefined behaviour (if it does, that's a bug in libopenmpt). In
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particular:
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* `char` can be `signed` or `unsigned`
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* shifting signed values is implementation defined
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* `signed` integer overflow is undefined
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* `float` and `double` can be non-IEEE754
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libopenmpt can optionally support certain incomplete C++
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implementations:
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* platforms without `wchar_t` support (like DJGPP)
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* platforms without working `std::random_device` (like Emscripten when
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running in `AudioWorkletProcessor` context)
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* platforms without working `std::high_resolution_clock` (like
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Emscripten when running in `AudioWorkletProcessor` context)
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* Required compilers to use libopenmpt:
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* Any **C89** / **C99** / **C11** compatible compiler should work with
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the C API as long as a **C99** compatible **stdint.h** is available.
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* Any **C++17** compatible compiler should work with the C++ API.
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* **J2B** support requires an inflate (deflate decompression) implementation:
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* **zlib** (or **miniz** can be used internally)
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* **MO3** support requires:
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* **libmpg123 >= 1.14.0** (or **minimp3 by Lion (github.com/lieff)** can
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be used internally)
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* **libogg**, **libvorbis**, and **libvorbisfile** (or **stb_vorbis** can
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be used internally)
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* Building on Unix-like systems requires:
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* **GNU make**
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* **pkg-config**
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* The Autotools-based build system requires:
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* **pkg-config 0.24** or higher
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* **zlib**
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* **doxygen**
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### openmpt123
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* Live sound output requires one of:
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* **PulseAudio**
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* **SDL 2**
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* **PortAudio v19**
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* **Win32**
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* **liballegro 4.2** on DJGPP/DOS
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Optional dependencies
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---------------------
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### libopenmpt
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* **doxygen 1.8** or higher is required to build the documentation.
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### openmpt123
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* Rendering to PCM files can use:
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* **FLAC 1.2** or higher
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* **libsndfile**
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* **Win32** for WAVE
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* raw PCM has no external dependencies
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* **help2man** is required to build the documentation.
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Source packages
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---------------
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Building the source packages additionally requires:
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* 7z (7-zip)
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* autoconf
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* autoconf-archive
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* automake
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* awk (mawk)
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* git
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* gzip
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* help2man
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* libtool
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* subversion
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* tar
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* xpath (libxml-xpath-perl)
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* zip
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