1 files changed, 14 insertions, 83 deletions
diff --git a/src/prelude.h b/src/prelude.h
index 48f377c..7df178c 100644
--- a/src/prelude.h
+++ b/src/prelude.h
@@ -60,100 +60,31 @@ extern const char bfs_cflags[];
 extern const char bfs_ldflags[];
 extern const char bfs_ldlibs[];
 
-// Check for system headers
+// Feature detection
 
-#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(<stdbit.h>)
-#  define BFS_HAS_STDBIT_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_STDBIT_H (__STDC_VERSION__ >= C23)
-#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_EXTATTR_H
-#  define BFS_USE_SYS_EXTATTR_H BFS_HAS_SYS_EXTATTR_H
-#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
+// https://clang.llvm.org/docs/LanguageExtensions.html#has-attribute
+#ifndef __has_attribute
+#  define __has_attribute(attr) false
 #endif
 
-// Stub out feature detection on old/incompatible compilers
-
-#ifndef __has_feature
-#  define __has_feature(feat) false
+// https://clang.llvm.org/docs/LanguageExtensions.html#has-builtin
+#ifndef __has_builtin
+#  define __has_builtin(builtin) false
 #endif
 
+// https://en.cppreference.com/w/c/language/attributes#Attribute_testing
 #ifndef __has_c_attribute
 #  define __has_c_attribute(attr) false
 #endif
 
-#ifndef __has_attribute
-#  define __has_attribute(attr) false
+// https://clang.llvm.org/docs/LanguageExtensions.html#has-feature-and-has-extension
+#ifndef __has_feature
+#  define __has_feature(feat) false
 #endif
 
-#ifndef __has_builtin
-#  define __has_builtin(builtin) false
+// https://en.cppreference.com/w/c/preprocessor/include
+#ifndef __has_include
+#  define __has_include(header) false
 #endif
 
 // Sanitizer macros (GCC defines these but Clang does not)