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- /* Operating system and standard library dependencies. */
-
- /* 1. For the runtime system. */
-
- #define HAS_MEMMOVE
-
- /* Define HAS_MEMMOVE if you have `memmove', and if
- `memmove' is guaranteed to work even on overlapping areas.
- That's the case if your library is ANSI C compliant. */
-
- #define HAS_BCOPY
-
- /* Define HAS_BCOPY if you have `bcopy', and if
- `bcopy' is guaranteed to work even on overlapping areas. */
-
- #define HAS_MEMCPY
-
- /* Define HAS_MEMCPY if you have `memcpy', and if
- `memcpy' is guaranteed to work even on overlapping areas. */
-
- /* If none of HAS_MEMMOVE, HAS_BCOPY, and HAS_MEMCPY is defined, then we'll
- use our own memory copy routine. It might be slightly slower than the
- routines provided in the standard library, but at least it is guaranteed
- to work. So, in doubt, don't define anything. */
-
- #define HAS__SETJMP
-
- /* Define HAS__SETJMP if you have `_setjmp' and
- `_longjmp' as faster variants of `setjmp' and `longjmp'. */
-
- typedef int sighandler_return_type;
-
- /* Define as sighandler_return_type the return type of signal handlers
- (the functions that are passed to signal()). Usually `int' on older
- systems, `void' on newer systems. */
-
- #define BSD_SIGNALS
-
- /* Define BSD_SIGNALS if signal handlers have the BSD semantics: the handler
- remains attached to the signal when the signal is received. Leave it
- undefined if signal handlers have the System V semantics: the signal
- resets the behavior to default. */
-
- #define HAS_RENAME
-
- /* Define HAS_RENAME if you have rename(). */
-
- #define HAS_STRERROR
-
- /* Define HAS_STRERROR if you have strerror(). */
-
- /* 2. For the Unix library. */
-
- #define HAS_SOCKETS
-
- /* Define HAS_SOCKETS if you have BSD sockets. */
-
- #define HAS_UNISTD
-
- /* Define HAS_UNISTD if you have /usr/include/unistd.h. */
-
- #define HAS_DIRENT
-
- /* Define HAS_DIRENT if you have /usr/include/dirent.h and the result of
- readdir() is of type struct dirent *.
- Otherwise, we'll load /usr/include/sys/dir.h, and readdir() is expected to
- return a struct direct *. */
-
- #define HAS_LOCKF
-
- /* Define HAS_LOCKF if the library provides the lockf() function. */
-
- #define HAS_MKFIFO
-
- /* Define HAS_MKFIFO if the library provides the mkfifo() function. */
-
- #define HAS_GETPRIORITY
-
- /* Define HAS_GETPRIORITY if the library provides getpriority() and
- setpriority(). Otherwise, we'll use nice(). */
-
- #define HAS_UTIME
- #define HAS_UTIMES
-
- /* Define HAS_UTIME if you have /usr/include/utime.h and the library
- provides utime(). Define HAS_UTIMES if the library provides utimes(). */
-
- #define HAS_DUP2
-
- /* Define HAS_DUP2 if you have dup2(). */
-
- #define HAS_FCHMOD
-
- /* Define HAS_FCHMOD if you have fchmod() and fchown(). */
-
- #define HAS_TRUNCATE
-
- /* Define HAS_TRUNCATE if you have truncate() and
- ftruncate(). */
-
- #define HAS_SELECT
-
- /* Define HAS_SELECT if you have select(). */
-
- #define HAS_SYMLINK
-
- /* Define HAS_SYMLINK if you have symlink() and readlink() and lstat(). */
-
- #define HAS_WAIT3
- #define HAS_WAITPID
-
- /* Define HAS_WAIT3 if you have wait3().
- Define HAS_WAITPID if you have waitpid(). */
-
- #define HAS_GETGROUPS
-
- /* Define HAS_GETGROUPS if you have getgroups(). */
-
- #define HAS_TERMIOS
-
- /* Define HAS_TERMIOS if you have /usr/include/termios.h and it's
- Posix-compliant. */
-