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116 lines
3.3 KiB
116 lines
3.3 KiB
2 years ago
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/*
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Copyright 2021 David Robillard <http://drobilla.net>
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Permission to use, copy, modify, and/or distribute this software for any
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purpose with or without fee is hereby granted, provided that the above
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copyright notice and this permission notice appear in all copies.
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THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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/*
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Configuration header that defines reasonable defaults at compile time.
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This allows compile-time configuration from the command line (typically via
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the build system) while still allowing the source to be built without any
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configuration. The build system can define SERD_NO_DEFAULT_CONFIG to disable
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defaults, in which case it must define things like HAVE_FEATURE to enable
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features. The design here ensures that compiler warnings or
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include-what-you-use will catch any mistakes.
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*/
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#ifndef SERD_CONFIG_H
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#define SERD_CONFIG_H
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// Define version unconditionally so a warning will catch a mismatch
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#define SERD_VERSION "0.30.7"
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#if !defined(SERD_NO_DEFAULT_CONFIG)
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// We need unistd.h to check _POSIX_VERSION
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# ifndef SERD_NO_POSIX
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# ifdef __has_include
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# if __has_include(<unistd.h>)
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# include <unistd.h>
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# endif
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# elif defined(__unix__)
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# include <unistd.h>
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# endif
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# endif
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// C99 and C++11: aligned_alloc()
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# ifndef HAVE_ALIGNED_ALLOC
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# if !defined(__APPLE__) && !defined(_WIN32)
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# if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L
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# define HAVE_ALIGNED_ALLOC
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# elif defined(__cplusplus) && __cplusplus >= 201103L)
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# define HAVE_ALIGNED_ALLOC
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# endif
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# endif
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# endif
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// POSIX.1-2001: fileno()
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# ifndef HAVE_FILENO
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# if defined(_POSIX_VERSION) && _POSIX_VERSION >= 200112L
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# define HAVE_FILENO
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# endif
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# endif
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// POSIX.1-2001: posix_fadvise()
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# ifndef HAVE_POSIX_FADVISE
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# ifndef __APPLE__
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# if defined(_POSIX_VERSION) && _POSIX_VERSION >= 200112L
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# define HAVE_POSIX_FADVISE
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# endif
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# endif
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# endif
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// POSIX.1-2001: posix_memalign()
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# ifndef HAVE_POSIX_MEMALIGN
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# if defined(_POSIX_VERSION) && _POSIX_VERSION >= 200112L
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# define HAVE_POSIX_MEMALIGN
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# endif
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# endif
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#endif // !defined(SERD_NO_DEFAULT_CONFIG)
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/*
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Make corresponding USE_FEATURE defines based on the HAVE_FEATURE defines from
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above or the command line. The code checks for these using #if (not #ifdef),
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so there will be an undefined warning if it checks for an unknown feature,
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and this header is always required by any code that checks for features, even
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if the build system defines them all.
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*/
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#ifdef HAVE_ALIGNED_ALLOC
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# define USE_ALIGNED_ALLOC 1
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#else
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# define USE_ALIGNED_ALLOC 0
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#endif
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#ifdef HAVE_FILENO
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# define USE_FILENO 1
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#else
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# define USE_FILENO 0
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#endif
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#ifdef HAVE_POSIX_FADVISE
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# define USE_POSIX_FADVISE 1
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#else
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# define USE_POSIX_FADVISE 0
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#endif
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#ifdef HAVE_POSIX_MEMALIGN
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# define USE_POSIX_MEMALIGN 1
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#else
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# define USE_POSIX_MEMALIGN 0
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#endif
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#endif // SERD_CONFIG_H
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