Rename config.h to prelude.h

1 files changed, 0 insertions, 377 deletions

diff --git a/src/config.h b/src/config.h
deleted file mode 100644
index 2eff1fc..0000000
--- a/src/config.h
+++ /dev/null
@@ -1,377 +0,0 @@
-// Copyright © Tavian Barnes <tavianator@tavianator.com>
-// SPDX-License-Identifier: 0BSD
-
-/**
- * Configuration and feature/platform detection.
- */
-
-#ifndef BFS_CONFIG_H
-#define BFS_CONFIG_H
-
-// Possible __STDC_VERSION__ values
-
-#define C95 199409L
-#define C99 199901L
-#define C11 201112L
-#define C17 201710L
-#define C23 202311L
-
-#include <stddef.h>
-
-#if __STDC_VERSION__ < C23
-#  include <stdalign.h>
-#  include <stdbool.h>
-#  include <stdnoreturn.h>
-#endif
-
-// bfs packaging configuration
-
-#ifndef BFS_COMMAND
-#  define BFS_COMMAND "bfs"
-#endif
-#ifndef BFS_HOMEPAGE
-#  define BFS_HOMEPAGE "https://tavianator.com/projects/bfs.html"
-#endif
-
-// This is a symbol instead of a literal so we don't have to rebuild everything
-// when the version number changes
-extern const char bfs_version[];
-
-// Check for system headers
-
-#ifdef __has_include
-
-#if __has_include(<mntent.h>)
-#  define BFS_HAS_MNTENT_H true
-#endif
-#if __has_include(<paths.h>)
-#  define BFS_HAS_PATHS_H true
-#endif
-#if __has_include(<sys/acl.h>)
-#  define BFS_HAS_SYS_ACL_H true
-#endif
-#if __has_include(<sys/capability.h>)
-#  define BFS_HAS_SYS_CAPABILITY_H true
-#endif
-#if __has_include(<sys/extattr.h>)
-#  define BFS_HAS_SYS_EXTATTR_H true
-#endif
-#if __has_include(<sys/mkdev.h>)
-#  define BFS_HAS_SYS_MKDEV_H true
-#endif
-#if __has_include(<sys/param.h>)
-#  define BFS_HAS_SYS_PARAM_H true
-#endif
-#if __has_include(<sys/sysmacros.h>)
-#  define BFS_HAS_SYS_SYSMACROS_H true
-#endif
-#if __has_include(<sys/xattr.h>)
-#  define BFS_HAS_SYS_XATTR_H true
-#endif
-#if __has_include(<threads.h>)
-#  define BFS_HAS_THREADS_H true
-#endif
-#if __has_include(<util.h>)
-#  define BFS_HAS_UTIL_H true
-#endif
-
-#else // !__has_include
-
-#define BFS_HAS_MNTENT_H __GLIBC__
-#define BFS_HAS_PATHS_H true
-#define BFS_HAS_SYS_ACL_H true
-#define BFS_HAS_SYS_CAPABILITY_H __linux__
-#define BFS_HAS_SYS_EXTATTR_H __FreeBSD__
-#define BFS_HAS_SYS_MKDEV_H false
-#define BFS_HAS_SYS_PARAM_H true
-#define BFS_HAS_SYS_SYSMACROS_H __GLIBC__
-#define BFS_HAS_SYS_XATTR_H __linux__
-#define BFS_HAS_THREADS_H (!__STDC_NO_THREADS__)
-#define BFS_HAS_UTIL_H __NetBSD__
-
-#endif // !__has_include
-
-#ifndef BFS_USE_MNTENT_H
-#  define BFS_USE_MNTENT_H BFS_HAS_MNTENT_H
-#endif
-#ifndef BFS_USE_PATHS_H
-#  define BFS_USE_PATHS_H BFS_HAS_PATHS_H
-#endif
-#ifndef BFS_USE_SYS_ACL_H
-#  define BFS_USE_SYS_ACL_H (BFS_HAS_SYS_ACL_H && !__illumos__ && (!__linux__ || BFS_USE_LIBACL))
-#endif
-#ifndef BFS_USE_SYS_CAPABILITY_H
-#  define BFS_USE_SYS_CAPABILITY_H (BFS_HAS_SYS_CAPABILITY_H && !__FreeBSD__ && (!__linux__ || BFS_USE_LIBCAP))
-#endif
-#ifndef BFS_USE_SYS_EXTATTR_H
-#  define BFS_USE_SYS_EXTATTR_H (BFS_HAS_SYS_EXTATTR_H && !__DragonFly__)
-#endif
-#ifndef BFS_USE_SYS_MKDEV_H
-#  define BFS_USE_SYS_MKDEV_H BFS_HAS_SYS_MKDEV_H
-#endif
-#ifndef BFS_USE_SYS_PARAM_H
-#  define BFS_USE_SYS_PARAM_H BFS_HAS_SYS_PARAM_H
-#endif
-#ifndef BFS_USE_SYS_SYSMACROS_H
-#  define BFS_USE_SYS_SYSMACROS_H BFS_HAS_SYS_SYSMACROS_H
-#endif
-#ifndef BFS_USE_SYS_XATTR_H
-#  define BFS_USE_SYS_XATTR_H BFS_HAS_SYS_XATTR_H
-#endif
-#ifndef BFS_USE_THREADS_H
-#  define BFS_USE_THREADS_H BFS_HAS_THREADS_H
-#endif
-#ifndef BFS_USE_UTIL_H
-#  define BFS_USE_UTIL_H BFS_HAS_UTIL_H
-#endif
-
-// Stub out feature detection on old/incompatible compilers
-
-#ifndef __has_feature
-#  define __has_feature(feat) false
-#endif
-
-#ifndef __has_c_attribute
-#  define __has_c_attribute(attr) false
-#endif
-
-#ifndef __has_attribute
-#  define __has_attribute(attr) false
-#endif
-
-// Platform detection
-
-// Get the definition of BSD if available
-#if BFS_USE_SYS_PARAM_H
-#  include <sys/param.h>
-#endif
-
-#ifndef __GLIBC_PREREQ
-#  define __GLIBC_PREREQ(maj, min) false
-#endif
-
-#ifndef __NetBSD_Prereq__
-#  define __NetBSD_Prereq__(maj, min, patch) false
-#endif
-
-// Fundamental utilities
-
-/**
- * Get the length of an array.
- */
-#define countof(array) (sizeof(array) / sizeof(0[array]))
-
-/**
- * False sharing/destructive interference/largest cache line size.
- */
-#ifdef __GCC_DESTRUCTIVE_SIZE
-#  define FALSE_SHARING_SIZE __GCC_DESTRUCTIVE_SIZE
-#else
-#  define FALSE_SHARING_SIZE 64
-#endif
-
-/**
- * True sharing/constructive interference/smallest cache line size.
- */
-#ifdef __GCC_CONSTRUCTIVE_SIZE
-#  define TRUE_SHARING_SIZE __GCC_CONSTRUCTIVE_SIZE
-#else
-#  define TRUE_SHARING_SIZE 64
-#endif
-
-/**
- * Alignment specifier that avoids false sharing.
- */
-#define cache_align alignas(FALSE_SHARING_SIZE)
-
-#if __COSMOPOLITAN__
-typedef long double max_align_t;
-#endif
-
-// Wrappers for attributes
-
-/**
- * Silence warnings about switch/case fall-throughs.
- */
-#if __has_attribute(fallthrough)
-#  define fallthru __attribute__((fallthrough))
-#else
-#  define fallthru ((void)0)
-#endif
-
-/**
- * Silence warnings about unused declarations.
- */
-#if __has_attribute(unused)
-#  define attr_maybe_unused __attribute__((unused))
-#else
-#  define attr_maybe_unused
-#endif
-
-/**
- * Warn if a value is unused.
- */
-#if __has_attribute(warn_unused_result)
-#  define attr_nodiscard __attribute__((warn_unused_result))
-#else
-#  define attr_nodiscard
-#endif
-
-/**
- * Hint to avoid inlining a function.
- */
-#if __has_attribute(noinline)
-#  define attr_noinline __attribute__((noinline))
-#else
-#  define attr_noinline
-#endif
-
-/**
- * Hint that a function is unlikely to be called.
- */
-#if __has_attribute(cold)
-#  define attr_cold attr_noinline __attribute__((cold))
-#else
-#  define attr_cold attr_noinline
-#endif
-
-/**
- * Adds compiler warnings for bad printf()-style function calls, if supported.
- */
-#if __has_attribute(format)
-#  define attr_printf(fmt, args) __attribute__((format(printf, fmt, args)))
-#else
-#  define attr_printf(fmt, args)
-#endif
-
-/**
- * Annotates allocator-like functions.
- */
-#if __has_attribute(malloc)
-#  if __GNUC__ >= 11 && !__OPTIMIZE__ // malloc(deallocator) disables inlining on GCC
-#    define attr_malloc(...) attr_nodiscard __attribute__((malloc(__VA_ARGS__)))
-#  else
-#    define attr_malloc(...) attr_nodiscard __attribute__((malloc))
-#  endif
-#else
-#  define attr_malloc(...) attr_nodiscard
-#endif
-
-/**
- * Specifies that a function returns allocations with a given alignment.
- */
-#if __has_attribute(alloc_align)
-#  define attr_alloc_align(param) __attribute__((alloc_align(param)))
-#else
-#  define attr_alloc_align(param)
-#endif
-
-/**
- * Specifies that a function returns allocations with a given size.
- */
-#if __has_attribute(alloc_size)
-#  define attr_alloc_size(...) __attribute__((alloc_size(__VA_ARGS__)))
-#else
-#  define attr_alloc_size(...)
-#endif
-
-/**
- * Shorthand for attr_alloc_align() and attr_alloc_size().
- */
-#define attr_aligned_alloc(align, ...) \
-	attr_alloc_align(align) \
-	attr_alloc_size(__VA_ARGS__)
-
-/**
- * Check if function multiversioning via GNU indirect functions (ifunc) is supported.
- */
-#ifndef BFS_USE_TARGET_CLONES
-#  if __has_attribute(target_clones) && (__GLIBC__ || __FreeBSD__)
-#    define BFS_USE_TARGET_CLONES true
-#  endif
-#endif
-
-/**
- * Apply the target_clones attribute, if available.
- */
-#if BFS_USE_TARGET_CLONES
-#  define attr_target_clones(...) __attribute__((target_clones(__VA_ARGS__)))
-#else
-#  define attr_target_clones(...)
-#endif
-
-/**
- * Shorthand for multiple attributes at once. attr(a, b(c), d) is equivalent to
- *
- *     attr_a
- *     attr_b(c)
- *     attr_d
- */
-#define attr(...) \
-	attr__(attr_##__VA_ARGS__, none, none, none, none, none, none, none, none, none, )
-
-/**
- * attr() helper.  For exposition, pretend we support only 2 args, instead of 9.
- * There are a few cases:
- *
- *     attr()
- *         => attr__(attr_, none, none)
- *         => attr_                =>
- *            attr_none            =>
- *            attr_too_many_none() =>
- *
- *     attr(a)
- *         => attr__(attr_a, none, none)
- *         => attr_a               => __attribute__((a))
- *            attr_none            =>
- *            attr_too_many_none() =>
- *
- *     attr(a, b(c))
- *         => attr__(attr_a, b(c), none, none)
- *         => attr_a                   => __attribute__((a))
- *            attr_b(c)                => __attribute__((b(c)))
- *            attr_too_many_none(none) =>
- *
- *     attr(a, b(c), d)
- *         => attr__(attr_a, b(c), d, none, none)
- *         => attr_a                      => __attribute__((a))
- *            attr_b(c)                   => __attribute__((b(c)))
- *            attr_too_many_d(none, none) => error
- *
- * Some attribute names are the same as standard library functions, e.g. printf.
- * Standard libraries are permitted to define these functions as macros, like
- *
- *     #define printf(...) __builtin_printf(__VA_ARGS__)
- *
- * The token paste in
- *
- *     #define attr(...) attr__(attr_##__VA_ARGS__, none, none)
- *
- * is necessary to prevent macro expansion before evaluating attr__().
- * Otherwise, we could get
- *
- *     attr(printf(1, 2))
- *         => attr__(__builtin_printf(1, 2), none, none)
- *         => attr____builtin_printf(1, 2)
- *         => error
- */
-#define attr__(a1, a2, a3, a4, a5, a6, a7, a8, a9, none, ...) \
-	a1 \
-	attr_##a2 \
-	attr_##a3 \
-	attr_##a4 \
-	attr_##a5 \
-	attr_##a6 \
-	attr_##a7 \
-	attr_##a8 \
-	attr_##a9 \
-	attr_too_many_##none(__VA_ARGS__)
-
-// Ignore `attr_none` from expanding 1-9 argument attr(a1, a2, ...)
-#define attr_none
-// Ignore `attr_` from expanding 0-argument attr()
-#define attr_
-// Only trigger an error on more than 9 arguments
-#define attr_too_many_none(...)
-
-#endif // BFS_CONFIG_H