/* ml-unixdep.h
 *
 * COPYRIGHT (c) 1992 AT&T Bell Laboratories
 *
 * This file contains O.S. dependent paths, definitions and feature flags for
 * various UNIX systems.  It should not be included in files that are OS
 * independent.  See the file * "mach-dep/signal-sysdep.h" for machine/O.S.
 * dependencies related to signal handling.
 *
 * Operating system features:
 *
 * The following feature symbols may be defined:
 *
 *   HAS_POSIX_LIBRARIES	if the ML Posix binding is supported.
 *   HAS_GETRUSAGE		if OS provides getrusage(2) call
 *   HAS_SETITIMER		if OS provides setitimer(2) call
 *   HAS_MMAP			if OS provides both mmap(2) and /dev/zero.
 *   HAS_ANON_MMAP		if OS provides anonymous mmap(2) (OSF/1)
 *   HAS_PARTIAL_MUNMAP		if OS allows unmapping of subranges of a mapped
 *				object
 *   HAS_VM_ALLOCATE		if OS provides vm_allocate (MACH)
 *   HAS_SCALBN			if OS provides scalbn(3m) (used by bytecode)
 *   HAS_ILOGB			if OS provides ilogb(3m) (used by bytecode)
 *   HAS_SELECT			if OS supports BSD style select(2)
 *   HAS_POLL			if OS supports SystemV style poll(2)
 *   HAS_POSIX_SIGS		if OS provides POSIX sigaction signal interface
 *				(including the full sigprocmask interface).
 *   HAS_BSD_SIGS		if OS provides BSD sigvec interface (including
 *				sigsetmask).
 *   HAS_SIGCONTEXT		if signal handlers have a struct sigcontext
 *				argument.
 *   INCLUDE_SIGINFO_H		include file that contains siginfo (if needed).
 *   HAS_UCONTEXT		if signal handlers have a ucontext_t argument.
 *   HAS_STRERROR		if the system provides the ISO C strerror function.
 *   INT_GIDLIST		if the second argument to getgroups is int[].
 *
 * Note that only one of the following sets of symbols should be defined:
 *   { HAS_MMAP, HAS_ANON_MMAP, HAS_VM_ALLOCATE }
 *   { HAS_SELECT, HAS_POLL }
 *   { HAS_POSIX_SIGS, HAS_BSD_SIGS }
 *   { HAS_SIGCONTEXT, HAS_UCONTEXT }
 *
 * Some UNIX systems do not support the POSIX libraries (HAS_POSIX_LIBRARIES is
 * not defined), in which case, some of the following feature falgs may be defined:
 *
 *   HAS_ACCESS
 *   HAS_WAITPID		if OS provides waitpid(2) call (POSIX)
 *   HAS_WAIT3			if OS provides the BSD wait3(2) call
 *   HAS_SYMLINKS		if OS supports symbolic links; this includes
 *				the symlink(2) and readlink(2) calls.
 *   HAS_GETCWD			if OS supports getcwd(3) (POSIX)
 *   HAS_GETWD			if OS supports getwd(3) (BSD)
 *   HAS_CHMOD			if OS supports chmod(2) and fchmod(2)
 *   HAS_TRUNCATE		if OS supports truncate(2) and ftruncate(2)
 *   HAS_GETHOSTNAME		if OS supports gethostname(2)
 *   HAS_GETHOSTID		if OS supports gethostid(2)
 *   HAS_SYSINFO		if OS supports SystemV style sysinfo(2)
 *   HAS_UNAME_ID		if OS supports uname(2) with machine ID field
 *
 *   { HAS_GETHOSTID, HAS_SYSINFO, HAS_UNAME_ID }
 *   { HAS_WAITPID, HAS_WAIT3 }
 */

#ifndef _ML_UNIXDEP_
#define _ML_UNIXDEP_

/** Include file paths **/
#define INCLUDE_TYPES_H		<sys/types.h>
#define INCLUDE_TIME_H		<sys/time.h>

#if (defined(OPSYS_ULTRIX) || defined(OPSYS_AIX))
#define INCLUDE_FCNTL_H		<fcntl.h>

#elif defined(OPSYS_MACH)
/* MACH doesn't have <fcntl.h>; the following defininitions are extracted from
 * <sys/file.h>.  This isn't included directly, because it conflicts with
 * <unistd.h>.
 */
#  define INCLUDE_FCNTL_H               "/dev/null"
#  define FNDELAY       00004           /* no delay */
#  define FAPPEND       00010           /* append on each write */
#  define FCREAT        01000           /* create if nonexistant */
#  define FTRUNC        02000           /* truncate to zero length */
#  define FEXCL         04000           /* error if already created */
#  define O_RDONLY      000             /* open for reading */
#  define O_WRONLY      001             /* open for writing */
#  define O_RDWR        002             /* open for read & write */
#  define O_NDELAY      FNDELAY         /* non-blocking open */
#  define O_APPEND      FAPPEND         /* append on each write */
#  define O_CREAT       FCREAT          /* open with file create */
#  define O_TRUNC       FTRUNC          /* open with truncation */
#  define O_EXCL        FEXCL           /* error on create if file exists */

#else
#define INCLUDE_FCNTL_H		<sys/fcntl.h>
#endif

#if defined(OPSYS_OSF1) || defined(OPSYS_DUNIX) || defined(OPSYS_AIX) || defined(OPSYS_LINUX) || defined(OPSYS_MKLINUX) || defined(OPSYS_FREEBSD) || defined(OPSYS_NETBSD) || defined(OPSYS_NETBSD2) || defined(OPSYS_CYGWIN)
#  define INCLUDE_DIRENT_H	<dirent.h>
#elif defined(OPSYS_MACH)
#  define INCLUDE_DIRENT_H	<sys/dir.h>
#else
#  define INCLUDE_DIRENT_H	<sys/dirent.h>
#endif


#if defined(OPSYS_SUNOS) /** SunOS 4.1 **/
#  define OS_NAME	"SunOS"
#  define HAS_POSIX_LIBRARIES
#  define HAS_BSD_SIGS
#  define HAS_GETRUSAGE
#  define HAS_SETITIMER
#  define HAS_MMAP
#  define HAS_PARTIAL_MUNMAP
#  define HAS_SCALBN
#  define HAS_ILOGB
#  define HAS_SELECT
#  define HAS_SIGCONTEXT
#  define INT_GIDLIST	/* second argument to getgroups is int[] */

/* SunOS is not quite full POSIX */
typedef int ssize_t;

/* These declarations are not in <errno.h> */
extern int	sys_nerr;
extern char	*sys_errlist[];

#elif defined(OPSYS_SOLARIS) /** SunOS 5.x **/
#  define OS_NAME	"Solaris"
#  define HAS_POSIX_LIBRARIES
#  define HAS_POSIX_SIGS
#  define HAS_SETITIMER
#  define HAS_MMAP
#  define HAS_PARTIAL_MUNMAP
#  define HAS_SCALBN
#  define HAS_ILOGB
#  define HAS_POLL
#  define HAS_UCONTEXT
#  define INCLUDE_SIGINFO_H <siginfo.h>
#  define HAS_STRERROR

/* These declarations are not in <errno.h> */
extern int	sys_nerr;
extern char	*sys_errlist[];

#elif defined(OPSYS_IRIX4)  /** IRIX 4.0.x **/
#  define OS_NAME	"Irix"
#  define HAS_POSIX_LIBRARIES
#  define HAS_POSIX_SIGS
#  define HAS_GETRUSAGE
#  define HAS_SETITIMER
#  define HAS_MMAP
#  define HAS_SELECT
#  define HAS_SIGCONTEXT
#  define HAS_STRERROR
#  define PROT_EXEC PROT_EXECUTE

/* IRIX 4.0 is not quite full POSIX */
typedef int ssize_t;

#elif defined(OPSYS_IRIX5)  /** IRIX 5.x **/
#  define OS_NAME	"Irix"
#  define HAS_POSIX_LIBRARIES
#  define HAS_POSIX_SIGS
#  define HAS_GETRUSAGE
#  define HAS_SETITIMER
#  define HAS_MMAP
#  define HAS_POLL
#  define HAS_UCONTEXT
#  define INCLUDE_SIGINFO_H <siginfo.h>
#  define HAS_STRERROR

#elif (defined(OPSYS_OSF1) || defined(OPSYS_DUNIX)) /** OSF/1 aka Digital Unix **/
#  define OS_NAME	"OSF/1"
#  define HAS_POSIX_LIBRARIES
#  define HAS_POSIX_SIGS
#  define HAS_GETRUSAGE
#  define HAS_SETITIMER
#  define HAS_ANON_MMAP
#  define HAS_POLL
#  define HAS_SIGCONTEXT
#  define HAS_STRERROR
/* what about HAS_PARTIAL_MUNMAP? - Ken Cline */

#elif defined(OPSYS_AIX)  /** AIX 3.2 **/
#  define OS_NAME	"AIX"
#  define HAS_POSIX_LIBRARIES
#  define HAS_POSIX_SIGS
#  define HAS_GETRUSAGE
#  define HAS_MMAP
#  define HAS_PARTIAL_MUNMAP
#  define HAS_POLL
#  define HAS_SIGCONTEXT
#  define HAS_STRERROR

/* These declarations are not in <errno.h> */
extern int	sys_nerr;
extern char	*sys_errlist[];

#elif defined(OPSYS_DARWIN) && defined(OPSYS_MACOS_10_1) /** MacOS X 10.1 **/
#  define OS_NAME       "Darwin"
#  define HAS_POSIX_LIBRARIES
#  define HAS_POSIX_SIGS
#  define HAS_GETRUSAGE
#  define HAS_SETITIMER
#  define HAS_ANON_MMAP
#  define HAS_SIGCONTEXT
#  define HAS_STRERROR
#  define HAS_SELECT
#  define MAP_ANONYMOUS MAP_ANON

#elif defined(OPSYS_DARWIN) && defined(OPSYS_MACOS_10_2) /** MacOS X 10.2 **/
#  define OS_NAME       "Darwin"
#  define HAS_POSIX_LIBRARIES
#  define HAS_POSIX_SIGS
#  define HAS_GETRUSAGE
#  define HAS_SETITIMER
#  define HAS_ANON_MMAP
#  define HAS_UCONTEXT
#  define HAS_STRERROR
#  define HAS_SELECT
#  define MAP_ANONYMOUS MAP_ANON

#elif defined(OPSYS_HPUX9)  /** HPUX 9.0 **/
#  define OS_NAME       "HPUX"
#  define HAS_POSIX_LIBRARIES
#  define HAS_POSIX_SIGS
#  define HAS_SETITIMER
#  define HAS_ANON_MMAP
#  define HAS_SELECT
#  define HAS_SIGCONTEXT
#  define HAS_STRERROR
#  define _INCLUDE_POSIX_SOURCE
#  define _INCLUDE_HPUX_SOURCE
#  define _INCLUDE_XOPEN_SOURCE
#  define _INCLUDE_AES_SOURCE
#  define _AID_T

/* These declarations are not in <errno.h> */
extern int      sys_nerr;
extern char     *sys_errlist[];

#elif defined(OPSYS_HPUX)  /** HPUX 10.0 **/
#  define OS_NAME       "HPUX"
#  define HAS_POSIX_LIBRARIES
#  define HAS_POSIX_SIGS
#  define HAS_SETITIMER
#  define HAS_ANON_MMAP
#  define HAS_POLL
#  define HAS_SIGCONTEXT
#  define HAS_STRERROR
#  define _HPUX_SOURCE
#  define _INCLUDE_POSIX_SOURCE
#  define _INCLUDE_POSIX4_SOURCE
#  define _INCLUDE_XOPEN_SOURCE
#  define _INCLUDE_XOPEN_SOURCE_EXTENDED
#  define _INCLUDE_AES_SOURCE
#  define _AID_T

/* These declarations are not in <errno.h> */
extern int      sys_nerr;
extern char     *sys_errlist[];

#elif (defined(TARGET_X86) && defined(OPSYS_LINUX))
#  define OS_NAME	"Linux"
#  define HAS_POSIX_LIBRARIES
#  define HAS_POSIX_SIGS
#  define HAS_GETRUSAGE
#  define HAS_SETITIMER
#  define HAS_MMAP
#  define HAS_PARTIAL_MUNMAP
#  define HAS_SELECT
#  define HAS_UCONTEXT
#  define HAS_STRERROR
#  define __USE_GNU

#include <features.h>

#elif (defined(TARGET_PPC) && defined(OPSYS_LINUX))
#  define OS_NAME	"Linux"
#  define HAS_POSIX_LIBRARIES
#  define HAS_POSIX_SIGS
#  define HAS_GETRUSAGE
#  define HAS_SETITIMER
#  define HAS_MMAP
#  define HAS_ANON_MMAP
#  define HAS_PARTIAL_MUNMAP
#  define HAS_SELECT
#  define HAS_STRERROR

#include <features.h>

#elif defined(OPSYS_FREEBSD)
#  define OS_NAME	"BSD"
#  define HAS_POSIX_LIBRARIES
#  define HAS_BSD_SIGS
#  define HAS_GETRUSAGE
#  define HAS_SETITIMER
#  define HAS_ANON_MMAP
#  define HAS_PARTIAL_MUNMAP
#  define HAS_SELECT
#  define HAS_SCALBN
#  define HAS_ILOGB
#  define HAS_SIGCONTEXT
#  define HAS_STRERROR

/* FreeBSD uses MAP_ANON for MAP_ANONYMOUS */
#  define MAP_ANONYMOUS MAP_ANON

#elif defined(OPSYS_NETBSD2) /* version 2.x */
#  define OS_NAME	"BSD"
#  define HAS_POSIX_LIBRARIES
#  define HAS_BSD_SIGS
#  define HAS_GETRUSAGE
#  define HAS_SETITIMER
#  define HAS_MMAP
#  define HAS_SELECT
#  define HAS_SCALBN
#  define HAS_ILOGB
#  define HAS_SIGCONTEXT
#  define HAS_STRERROR

#elif defined(OPSYS_NETBSD) /* version 3.x */
#  define OS_NAME	"BSD"
#  define HAS_POSIX_LIBRARIES
#  define HAS_BSD_SIGS
#  define HAS_GETRUSAGE
#  define HAS_SETITIMER
#  define HAS_MMAP
#  define HAS_SELECT
#  define HAS_SCALBN
#  define HAS_ILOGB
#  define HAS_UCONTEXT
#  define HAS_STRERROR

#elif (defined(TARGET_X86) && defined(OPSYS_CYGWIN))
#  define OS_NAME	"Cygwin" 
#  define HAS_POSIX_LIBRARIES
#  define HAS_POSIX_SIGS
#  define HAS_GETRUSAGE
#  define HAS_SETITIMER
#  define HAS_MMAP
#  define HAS_PARTIAL_MUNMAP
#  define HAS_SELECT
#  define HAS_SIGCONTEXT
#  define HAS_STRERROR

#include <features.h>

#endif


/** Extra #defines **/
#if (defined(HOST_SPARC) && defined(OPSYS_SUNOS) && (! defined(sparc)))
#  define sparc
#elif ((defined(OPSYS_IRIX4) || defined(OPSYS_IRIX5)) && (! defined(LANGUAGE_C)))
#  define LANGUAGE_C
#endif

#if (defined(HOST_MIPS))
#  include "ml-sizes.h"  /* for endianess */
#  if (defined(BYTE_ORDER_BIG) && (! defined(MIPSEB)))
#    define MIPSEB
#  elif (defined(BYTE_ORDER_LITTLE) && (! defined(MIPSEL)))
#    define MIPSEL
#  endif
#endif

#if ((defined(OPSYS_IRIX4) || defined(OPSYS_IRIX5)) && (! defined(__EXTENSIONS__)))
#  define __EXTENSIONS__
#endif

#include INCLUDE_TYPES_H
#include <unistd.h>
#include <string.h>
#include <errno.h>

#endif /* !_ML_UNIXDEP_ */