Serd subproject with meson
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/*
Copyright 2021 David Robillard <d@drobilla.net>
Permission to use, copy, modify, and/or distribute this software for any
purpose with or without fee is hereby granted, provided that the above
copyright notice and this permission notice appear in all copies.
THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/*
Configuration header that defines reasonable defaults at compile time.
This allows compile-time configuration from the command line (typically via
the build system) while still allowing the source to be built without any
configuration. The build system can define SERD_NO_DEFAULT_CONFIG to disable
defaults, in which case it must define things like HAVE_FEATURE to enable
features. The design here ensures that compiler warnings or
include-what-you-use will catch any mistakes.
*/
#ifndef SERD_CONFIG_H
#define SERD_CONFIG_H
// Define version unconditionally so a warning will catch a mismatch
#define SERD_VERSION "0.30.9"
#if !defined(SERD_NO_DEFAULT_CONFIG)
// We need unistd.h to check _POSIX_VERSION
# ifndef SERD_NO_POSIX
# ifdef __has_include
# if __has_include(<unistd.h>)
# include <unistd.h>
# endif
# elif defined(__unix__)
# include <unistd.h>
# endif
# endif
// C99 and C++11: aligned_alloc()
# ifndef HAVE_ALIGNED_ALLOC
# if !defined(__APPLE__) && !defined(_WIN32)
# if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L
# define HAVE_ALIGNED_ALLOC
# elif defined(__cplusplus) && __cplusplus >= 201103L)
# define HAVE_ALIGNED_ALLOC
# endif
# endif
# endif
// POSIX.1-2001: fileno()
# ifndef HAVE_FILENO
# if defined(_POSIX_VERSION) && _POSIX_VERSION >= 200112L
# define HAVE_FILENO
# endif
# endif
// POSIX.1-2001: posix_fadvise()
# ifndef HAVE_POSIX_FADVISE
# ifndef __APPLE__
# if defined(_POSIX_VERSION) && _POSIX_VERSION >= 200112L
# define HAVE_POSIX_FADVISE
# endif
# endif
# endif
// POSIX.1-2001: posix_memalign()
# ifndef HAVE_POSIX_MEMALIGN
# if defined(_POSIX_VERSION) && _POSIX_VERSION >= 200112L
# define HAVE_POSIX_MEMALIGN
# endif
# endif
#endif // !defined(SERD_NO_DEFAULT_CONFIG)
/*
Make corresponding USE_FEATURE defines based on the HAVE_FEATURE defines from
above or the command line. The code checks for these using #if (not #ifdef),
so there will be an undefined warning if it checks for an unknown feature,
and this header is always required by any code that checks for features, even
if the build system defines them all.
*/
#ifdef HAVE_ALIGNED_ALLOC
# define USE_ALIGNED_ALLOC 1
#else
# define USE_ALIGNED_ALLOC 0
#endif
#ifdef HAVE_FILENO
# define USE_FILENO 1
#else
# define USE_FILENO 0
#endif
#ifdef HAVE_POSIX_FADVISE
# define USE_POSIX_FADVISE 1
#else
# define USE_POSIX_FADVISE 0
#endif
#ifdef HAVE_POSIX_MEMALIGN
# define USE_POSIX_MEMALIGN 1
#else
# define USE_POSIX_MEMALIGN 0
#endif
#endif // SERD_CONFIG_H