#include <fcntl.h>
-#ifndef F_LINUX_SPECIFIC_BASE
-#define F_LINUX_SPECIFIC_BASE 1024
-#endif
-
+/* This is defined since glibc-2.41. */
#ifndef F_DUPFD_QUERY
-#define F_DUPFD_QUERY (F_LINUX_SPECIFIC_BASE + 3)
-#endif
-
-#ifndef F_SETPIPE_SZ
-#define F_SETPIPE_SZ (F_LINUX_SPECIFIC_BASE + 7)
-#endif
-
-#ifndef F_GETPIPE_SZ
-#define F_GETPIPE_SZ (F_LINUX_SPECIFIC_BASE + 8)
-#endif
-
-#ifndef F_ADD_SEALS
-#define F_ADD_SEALS (F_LINUX_SPECIFIC_BASE + 9)
-#define F_GET_SEALS (F_LINUX_SPECIFIC_BASE + 10)
-
-#define F_SEAL_SEAL 0x0001 /* prevent further seals from being set */
-#define F_SEAL_SHRINK 0x0002 /* prevent file from shrinking */
-#define F_SEAL_GROW 0x0004 /* prevent file from growing */
-#define F_SEAL_WRITE 0x0008 /* prevent writes */
-#endif
-
-#ifndef F_SEAL_FUTURE_WRITE
-#define F_SEAL_FUTURE_WRITE 0x0010 /* prevent future writes while mapped */
+#define F_DUPFD_QUERY 1027
#endif
+/* This is defined since glibc-2.39. */
#ifndef F_SEAL_EXEC
#define F_SEAL_EXEC 0x0020 /* prevent chmod modifying exec bits */
#endif
-#ifndef F_OFD_GETLK
-#define F_OFD_GETLK 36
-#define F_OFD_SETLK 37
-#define F_OFD_SETLKW 38
-#endif
-
-#ifndef MAX_HANDLE_SZ
-#define MAX_HANDLE_SZ 128
-#endif
-
-/* The precise definition of __O_TMPFILE is arch specific; use the
- * values defined by the kernel (note: some are hexa, some are octal,
- * duplicated as-is from the kernel definitions):
- * - alpha, parisc, sparc: each has a specific value;
- * - others: they use the "generic" value.
- */
-
-#ifndef __O_TMPFILE
-#if defined(__alpha__)
-#define __O_TMPFILE 0100000000
-#elif defined(__parisc__) || defined(__hppa__)
-#define __O_TMPFILE 0400000000
-#elif defined(__sparc__) || defined(__sparc64__)
-#define __O_TMPFILE 0x2000000
-#else
-#define __O_TMPFILE 020000000
-#endif
-#endif
-
-/* a horrid kludge trying to make sure that this will fail on old kernels */
-#ifndef O_TMPFILE
-#define O_TMPFILE (__O_TMPFILE | O_DIRECTORY)
-#endif
-
/* So O_LARGEFILE is generally implied by glibc, and defined to zero hence, because we only build in LFS
* mode. However, when invoking fcntl(F_GETFL) the flag is ORed into the result anyway — glibc does not mask
* it away. Which sucks. Let's define the actual value here, so that we can mask it ourselves.