Adding upstream version 3.4.23.upstream/3.4.23upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 1788 insertions, 0 deletions

diff --git a/src/util/sys_defs.h b/src/util/sys_defs.h
new file mode 100644
index 0000000..39daa16
--- /dev/null
+++ b/src/util/sys_defs.h
@@ -0,0 +1,1788 @@
+#ifndef _SYS_DEFS_H_INCLUDED_
+#define _SYS_DEFS_H_INCLUDED_
+
+/*++
+/* NAME
+/*	sys_defs 3h
+/* SUMMARY
+/*	portability header
+/* SYNOPSIS
+/*	#include <sys_defs.h>
+/* DESCRIPTION
+/* .nf
+
+ /*
+  * Specific platforms. Major release numbers differ for a good reason. So be
+  * a good girl, plan for the future, and at least include the major release
+  * number in the system type (for example, SUNOS5 or FREEBSD2). The system
+  * type is determined by the makedefs shell script in the top-level
+  * directory. Adding support for a new system type means updating the
+  * makedefs script, and adding a section below for the new system.
+  */
+#ifdef SUNOS5
+#define _SVID_GETTOD			/* Solaris 2.5, XSH4.2 versus SVID */
+#endif
+#include <sys/types.h>
+
+ /*
+  * 4.4BSD and close derivatives.
+  */
+#if defined(FREEBSD2) || defined(FREEBSD3) || defined(FREEBSD4) \
+    || defined(FREEBSD5) || defined(FREEBSD6) || defined(FREEBSD7) \
+    || defined(FREEBSD8) || defined(FREEBSD9) || defined(FREEBSD10) \
+    || defined(FREEBSD11) \
+    || defined(BSDI2) || defined(BSDI3) || defined(BSDI4) \
+    || defined(OPENBSD2) || defined(OPENBSD3) || defined(OPENBSD4) \
+    || defined(OPENBSD5) || defined(OPENBSD6) \
+    || defined(NETBSD1) || defined(NETBSD2) || defined(NETBSD3) \
+    || defined(NETBSD4) || defined(NETBSD5) || defined(NETBSD6) \
+    || defined(NETBSD7) \
+    || defined(EKKOBSD1) || defined(DRAGONFLY)
+#define SUPPORTED
+#include <sys/param.h>
+#define UINT32_TYPE	unsigned int
+#define UINT16_TYPE	unsigned short
+#define USE_PATHS_H
+#define HAS_FLOCK_LOCK
+#define HAS_FCNTL_LOCK
+#define INTERNAL_LOCK	MYFLOCK_STYLE_FLOCK
+#define DEF_MAILBOX_LOCK "flock, dotlock"
+#define HAS_SUN_LEN
+#define HAS_FSYNC
+#define HAS_DB
+#define HAS_SA_LEN
+#define NATIVE_DB_TYPE	"hash"
+#if (defined(__NetBSD_Version__) && __NetBSD_Version__ >= 104250000)
+#define ALIAS_DB_MAP   DEF_DB_TYPE ":/etc/mail/aliases"	/* sendmail 8.10 */
+#endif
+#if (defined(OpenBSD) && OpenBSD >= 200006)
+#define ALIAS_DB_MAP   DEF_DB_TYPE ":/etc/mail/aliases"	/* OpenBSD 2.7 */
+#endif
+#ifndef ALIAS_DB_MAP
+#define ALIAS_DB_MAP	DEF_DB_TYPE ":/etc/aliases"
+#endif
+#define GETTIMEOFDAY(t)	gettimeofday(t,(struct timezone *) 0)
+#define ROOT_PATH	"/bin:/usr/bin:/sbin:/usr/sbin"
+#if (defined(__NetBSD_Version__) && __NetBSD_Version__ > 299000900)
+#define USE_STATVFS
+#define STATVFS_IN_SYS_STATVFS_H
+#else
+#define USE_STATFS
+#define STATFS_IN_SYS_MOUNT_H
+#endif
+#define HAS_POSIX_REGEXP
+#define HAS_ST_GEN			/* struct stat contains inode
+					 * generation number */
+#define NATIVE_SENDMAIL_PATH "/usr/sbin/sendmail"
+#define NATIVE_MAILQ_PATH "/usr/bin/mailq"
+#define NATIVE_NEWALIAS_PATH "/usr/bin/newaliases"
+#define NATIVE_COMMAND_DIR "/usr/sbin"
+#define NATIVE_DAEMON_DIR "/usr/libexec/postfix"
+#define HAS_DLOPEN
+#endif
+
+#ifdef FREEBSD2
+#define getsid(p) getpgrp()
+#ifndef CMSG_SPACE
+#define CMSG_SPACE(len) (CMSG_ALIGN(sizeof(struct cmsghdr)) + CMSG_ALIGN(len))
+#endif
+#ifndef CMSG_LEN
+#define CMSG_LEN(len) (CMSG_ALIGN(sizeof(struct cmsghdr)) + (len))
+#endif
+#ifndef CMSG_ALIGN
+#define CMSG_ALIGN(n) ALIGN(n)
+#endif
+#endif					/* FREEBSD2 */
+
+#ifdef BSDI4
+/* #define HAS_IPV6 find out interface lookup method */
+#endif
+
+/* __FreeBSD_version version is major+minor */
+
+#if __FreeBSD_version >= 220000
+#define PREFERRED_RAND_SOURCE	"dev:/dev/urandom"	/* introduced 2.1.5 */
+#endif
+
+#if __FreeBSD_version >= 300000
+#define HAS_ISSETUGID
+#define HAS_FUTIMES
+#endif
+
+#if __FreeBSD_version >= 400000
+#define SOCKADDR_SIZE	socklen_t
+#define SOCKOPT_SIZE	socklen_t
+#endif
+
+#if __FreeBSD_version >= 420000
+#define HAS_DUPLEX_PIPE			/* 4.1 breaks with kqueue(2) */
+#endif
+
+#if (__FreeBSD_version >= 702104 && __FreeBSD_version <= 800000) \
+    || __FreeBSD_version >= 800100
+#define HAS_CLOSEFROM
+#endif
+
+/* OpenBSD version is year+month */
+
+#if OpenBSD >= 199805			/* XXX */
+#define HAS_FUTIMES			/* XXX maybe earlier */
+#endif
+
+#if (defined(OpenBSD) && OpenBSD >= 199608)
+#define PREFERRED_RAND_SOURCE	"dev:/dev/arandom"	/* XXX earlier */
+#endif
+
+#if OpenBSD >= 200000			/* XXX */
+#define HAS_ISSETUGID
+#endif
+
+#if OpenBSD >= 200200			/* XXX */
+#define SOCKADDR_SIZE	socklen_t
+#define SOCKOPT_SIZE	socklen_t
+#endif
+
+#if OpenBSD >= 200405			/* 3.5 */
+#define HAS_CLOSEFROM
+#endif
+
+/* __NetBSD_Version__ is major+minor */
+
+#if __NetBSD_Version__ >= 103000000	/* XXX maybe earlier */
+#undef DEF_MAILBOX_LOCK
+#define DEF_MAILBOX_LOCK "flock, dotlock"
+#define PREFERRED_RAND_SOURCE	"dev:/dev/urandom"	/* XXX maybe earlier */
+#endif
+
+#if __NetBSD_Version__ >= 105000000
+#define HAS_ISSETUGID			/* XXX maybe earlier */
+#endif
+
+#if __NetBSD_Version__ >= 106000000	/* XXX maybe earlier */
+#define SOCKADDR_SIZE	socklen_t
+#define SOCKOPT_SIZE	socklen_t
+#endif
+
+#if __NetBSD_Version__ >= 299000900	/* 2.99.9 */
+#define HAS_CLOSEFROM
+#endif
+
+#if (defined(__NetBSD_Version__) && __NetBSD_Version__ >= 102000000)
+#define HAS_FUTIMES
+#endif
+
+#if defined(__DragonFly__)
+#define HAS_DEV_URANDOM
+#define HAS_ISSETUGID
+#define HAS_FUTIMES
+#define SOCKADDR_SIZE	socklen_t
+#define SOCKOPT_SIZE	socklen_t
+#define HAS_DUPLEX_PIPE
+#endif
+
+#if (defined(__NetBSD_Version__) && __NetBSD_Version__ >= 105000000) \
+    || (defined(__FreeBSD__) && __FreeBSD__ >= 4) \
+    || (defined(OpenBSD) && OpenBSD >= 200003) \
+    || defined(__DragonFly__) \
+    || defined(USAGI_LIBINET6)
+#ifndef NO_IPV6
+#define HAS_IPV6
+#define HAVE_GETIFADDRS
+#endif
+
+#if (defined(__FreeBSD_version) && __FreeBSD_version >= 300000) \
+    || (defined(__NetBSD_Version__) && __NetBSD_Version__ >= 103000000) \
+    || (defined(OpenBSD) && OpenBSD >= 199700)	/* OpenBSD 2.0?? */ \
+    || defined(__DragonFly__)
+#define USE_SYSV_POLL
+#endif
+
+#ifndef NO_KQUEUE
+#if (defined(__FreeBSD_version) && __FreeBSD_version >= 410000) \
+    || (defined(__NetBSD_Version__) && __NetBSD_Version__ >= 200000000) \
+    || (defined(OpenBSD) && OpenBSD >= 200105)	/* OpenBSD 2.9 */ \
+    || defined(__DragonFly__)
+#define EVENTS_STYLE	EVENTS_STYLE_KQUEUE
+#endif
+#endif
+
+#ifndef NO_POSIX_GETPW_R
+#if (defined(__FreeBSD_version) && __FreeBSD_version >= 510000) \
+    || (defined(__NetBSD_Version__) && __NetBSD_Version__ >= 300000000) \
+    || (defined(OpenBSD) && OpenBSD >= 200811)	/* OpenBSD 4.4 */
+#define HAVE_POSIX_GETPW_R
+#endif
+#endif
+
+#endif
+
+ /*
+  * UNIX on MAC.
+  */
+#if defined(RHAPSODY5) || defined(MACOSX)
+#define SUPPORTED
+#define UINT32_TYPE	unsigned int
+#define UINT16_TYPE	unsigned short
+#define USE_PATHS_H
+#define HAS_FLOCK_LOCK
+#define HAS_FCNTL_LOCK
+#define INTERNAL_LOCK	MYFLOCK_STYLE_FLOCK
+#define DEF_MAILBOX_LOCK "flock, dotlock"
+#define HAS_SUN_LEN
+#define HAS_FSYNC
+#define HAS_DB
+#define HAS_SA_LEN
+#define NATIVE_DB_TYPE	"hash"
+#define ALIAS_DB_MAP	DEF_DB_TYPE ":/etc/aliases"
+#define GETTIMEOFDAY(t) gettimeofday(t,(struct timezone *) 0)
+#define ROOT_PATH	"/bin:/usr/bin:/sbin:/usr/sbin"
+#define USE_STATFS
+#define STATFS_IN_SYS_MOUNT_H
+#define HAS_POSIX_REGEXP
+#ifndef NO_NETINFO
+#define HAS_NETINFO
+#endif
+#ifndef NO_IPV6
+#define HAS_IPV6
+#define HAVE_GETIFADDRS
+#endif
+#define HAS_FUTIMES			/* XXX Guessing */
+#define NATIVE_SENDMAIL_PATH "/usr/sbin/sendmail"
+#define NATIVE_MAILQ_PATH "/usr/bin/mailq"
+#define NATIVE_NEWALIAS_PATH "/usr/bin/newaliases"
+#define NATIVE_COMMAND_DIR "/usr/sbin"
+#define NATIVE_DAEMON_DIR "/usr/libexec/postfix"
+#define SOCKADDR_SIZE	socklen_t
+#define SOCKOPT_SIZE	socklen_t
+#ifndef NO_KQUEUE
+#define EVENTS_STYLE	EVENTS_STYLE_KQUEUE
+#define USE_SYSV_POLL_THEN_SELECT
+#endif
+#define USE_MAX_FILES_PER_PROC
+#ifndef NO_POSIX_GETPW_R
+#define HAVE_POSIX_GETPW_R
+#endif
+#define HAS_DLOPEN
+#define PREFERRED_RAND_SOURCE	"dev:/dev/urandom"
+#endif
+
+ /*
+  * Ultrix 4.x, a sort of 4.[1-2] BSD system with System V.2 compatibility
+  * and POSIX.
+  */
+#ifdef ULTRIX4
+#define SUPPORTED
+#define UINT32_TYPE	unsigned int
+#define UINT16_TYPE	unsigned short
+/* Ultrix by default has only 64 descriptors per process */
+#ifndef FD_SETSIZE
+#define FD_SETSIZE	96
+#endif
+#define _PATH_MAILDIR	"/var/spool/mail"
+#define _PATH_BSHELL	"/bin/sh"
+#define _PATH_DEFPATH	"/bin:/usr/bin:/usr/ucb"
+#define _PATH_STDPATH	"/bin:/usr/bin:/usr/etc:/usr/ucb"
+#define HAS_FLOCK_LOCK
+#define HAS_FCNTL_LOCK
+#define INTERNAL_LOCK	MYFLOCK_STYLE_FLOCK
+#define DEF_MAILBOX_LOCK "flock, dotlock"
+#define HAS_FSYNC
+/* might be set by makedef */
+#ifdef HAS_DB
+#define NATIVE_DB_TYPE	"hash"
+#define ALIAS_DB_MAP	DEF_DB_TYPE ":/etc/aliases"
+#else
+#define HAS_DBM
+#define	NATIVE_DB_TYPE	"dbm"
+#define ALIAS_DB_MAP	DEF_DB_TYPE ":/etc/aliases"
+#endif
+extern int optind;
+extern char *optarg;
+extern int opterr;
+extern int h_errno;
+
+#define MISSING_STRFTIME_E
+#ifndef NO_NIS
+#define HAS_NIS
+#endif
+#define GETTIMEOFDAY(t)	gettimeofday(t,(struct timezone *) 0)
+#define ROOT_PATH	"/bin:/usr/bin:/etc:/usr/etc:/usr/ucb"
+#define USE_STATFS
+#define USE_STRUCT_FS_DATA
+#define STATFS_IN_SYS_MOUNT_H
+/* Ultrix misses just S_ISSOCK, the others are there */
+#define S_ISSOCK(mode)	(((mode) & (S_IFMT)) == (S_IFSOCK))
+#define DUP2_DUPS_CLOSE_ON_EXEC
+#define MISSING_USLEEP
+#define NO_HERRNO
+#define NATIVE_SENDMAIL_PATH "/usr/lib/sendmail"
+#define NATIVE_COMMAND_DIR "/usr/etc"
+#define NATIVE_DAEMON_DIR "/usr/libexec/postfix"
+#endif
+
+ /*
+  * OSF, then Digital UNIX, then Compaq. A BSD-flavored hybrid.
+  */
+#ifdef OSF1
+#define SUPPORTED
+#define UINT32_TYPE	unsigned int
+#define UINT16_TYPE	unsigned short
+#define MISSING_SETENV
+#define USE_PATHS_H
+#define _PATH_DEFPATH "/usr/bin:/usr/ucb"
+#define HAS_FLOCK_LOCK
+#define HAS_FCNTL_LOCK
+#define INTERNAL_LOCK	MYFLOCK_STYLE_FLOCK
+#define DEF_MAILBOX_LOCK "flock, dotlock"
+#define HAS_FSYNC
+#define HAVE_BASENAME
+#define HAS_DBM
+#define NATIVE_DB_TYPE	"dbm"
+#define ALIAS_DB_MAP	DEF_DB_TYPE ":/var/adm/sendmail/aliases"
+extern int optind;			/* XXX use <getopt.h> */
+extern char *optarg;			/* XXX use <getopt.h> */
+extern int opterr;			/* XXX use <getopt.h> */
+
+#ifndef NO_NIS
+#define HAS_NIS
+#endif
+#define GETTIMEOFDAY(t)	gettimeofday(t,(struct timezone *) 0)
+#define ROOT_PATH	"/bin:/usr/bin:/sbin:/usr/sbin:/usr/ucb"
+#define USE_STATFS
+#define STATFS_IN_SYS_MOUNT_H
+#define HAS_POSIX_REGEXP
+#define BROKEN_WRITE_SELECT_ON_NON_BLOCKING_PIPE
+#define NO_MSGHDR_MSG_CONTROL
+#ifndef NO_IPV6
+#define HAS_IPV6
+#endif
+
+#endif
+
+ /*
+  * SunOS 4.x, a mostly 4.[2-3] BSD system with System V.2 compatibility and
+  * POSIX support.
+  */
+#ifdef SUNOS4
+#define SUPPORTED
+#include <memory.h>
+#define UINT32_TYPE	unsigned int
+#define UINT16_TYPE	unsigned short
+#define UNSAFE_CTYPE
+#define fpos_t	long
+#define MISSING_SETENV
+#define MISSING_STRERROR
+#define MISSING_STRTOUL
+#define _PATH_MAILDIR	"/var/spool/mail"
+#define _PATH_BSHELL	"/bin/sh"
+#define _PATH_DEFPATH	"/usr/bin:/usr/ucb"
+#define _PATH_STDPATH	"/usr/bin:/usr/etc:/usr/ucb"
+#define HAS_FLOCK_LOCK
+#define HAS_FCNTL_LOCK
+#define INTERNAL_LOCK	MYFLOCK_STYLE_FLOCK
+#define DEF_MAILBOX_LOCK "flock, dotlock"
+#define HAS_FSYNC
+#define HAS_DBM
+#define NATIVE_DB_TYPE	"dbm"
+#define ALIAS_DB_MAP	DEF_DB_TYPE ":/etc/aliases"
+extern int optind;
+extern char *optarg;
+extern int opterr;
+
+#ifndef NO_NIS
+#define HAS_NIS
+#endif
+#define GETTIMEOFDAY(t)	gettimeofday(t,(struct timezone *) 0)
+#define ROOT_PATH	"/bin:/usr/bin:/etc:/usr/etc:/usr/ucb"
+#define USE_STATFS
+#define STATFS_IN_SYS_VFS_H
+#define memmove(d,s,l)	bcopy(s,d,l)
+#define NO_HERRNO
+#define NATIVE_SENDMAIL_PATH "/usr/lib/sendmail"
+#define NATIVE_MAILQ_PATH "/usr/ucb/mailq"
+#define NATIVE_NEWALIAS_PATH "/usr/ucb/newaliases"
+#define NATIVE_COMMAND_DIR "/usr/etc"
+#define NATIVE_DAEMON_DIR "/usr/libexec/postfix"
+#define STRCASECMP_IN_STRINGS_H
+#define OCTAL_TO_UNSIGNED(res, str) sscanf((str), "%o", &(res))
+#define size_t	unsigned
+#define ssize_t	int
+#define getsid	getpgrp
+#define NO_SNPRINTF
+#endif
+
+ /*
+  * SunOS 5.x, mostly System V Release 4.
+  */
+#ifdef SUNOS5
+#define SUPPORTED
+#define UINT32_TYPE	unsigned int
+#define UINT16_TYPE	unsigned short
+#define _PATH_MAILDIR	"/var/mail"
+#define _PATH_BSHELL	"/bin/sh"
+#define _PATH_DEFPATH	"/usr/bin:/usr/ucb"
+#define _PATH_STDPATH	"/usr/bin:/usr/sbin:/usr/ucb"
+#define HAS_FCNTL_LOCK
+#define INTERNAL_LOCK	MYFLOCK_STYLE_FCNTL
+#define DEF_MAILBOX_LOCK "fcntl, dotlock"
+#define HAS_FSYNC
+#define HAS_DBM
+#define NATIVE_DB_TYPE	"dbm"
+#define ALIAS_DB_MAP	DEF_DB_TYPE ":/etc/mail/aliases"
+#ifndef NO_NIS
+#define HAS_NIS
+#ifndef NO_NISPLUS
+#define HAS_NISPLUS
+#endif					/* NO_NISPLUS */
+#endif
+#define USE_SYS_SOCKIO_H		/* Solaris 2.5, changed sys/ioctl.h */
+#define GETTIMEOFDAY(t)	gettimeofday(t)
+#define ROOT_PATH	"/bin:/usr/bin:/sbin:/usr/sbin:/usr/ucb"
+#define FIONREAD_IN_SYS_FILIO_H
+#define USE_STATVFS
+#define STATVFS_IN_SYS_STATVFS_H
+#define INT_MAX_IN_LIMITS_H
+#ifdef STREAM_CONNECTIONS		/* avoid UNIX-domain sockets */
+#define LOCAL_LISTEN	stream_listen
+#define LOCAL_ACCEPT	stream_accept
+#define LOCAL_CONNECT	stream_connect
+#define LOCAL_TRIGGER	stream_trigger
+#define LOCAL_SEND_FD	stream_send_fd
+#define LOCAL_RECV_FD	stream_recv_fd
+#endif
+#define HAS_VOLATILE_LOCKS
+#define BROKEN_READ_SELECT_ON_TCP_SOCKET
+#define CANT_WRITE_BEFORE_SENDING_FD
+#ifndef NO_POSIX_REGEXP
+#define HAS_POSIX_REGEXP
+#endif
+#ifndef NO_IPV6
+#define HAS_IPV6
+#define HAS_SIOCGLIF
+#endif
+#ifndef NO_CLOSEFROM
+#define HAS_CLOSEFROM
+#endif
+#ifndef NO_DEV_URANDOM
+#define PREFERRED_RAND_SOURCE	"dev:/dev/urandom"
+#endif
+#ifndef NO_FUTIMESAT
+#define HAS_FUTIMESAT
+#endif
+#define USE_SYSV_POLL
+#ifndef NO_DEVPOLL
+#define EVENTS_STYLE	EVENTS_STYLE_DEVPOLL
+#endif
+#ifndef NO_POSIX_GETPW_R
+#define HAVE_POSIX_GETPW_R
+#define GETPW_R_NEEDS_POSIX_PTHREAD_SEMANTICS
+#endif
+
+/*
+ * Allow build environment to override paths.
+ */
+#define NATIVE_SENDMAIL_PATH "/usr/lib/sendmail"
+#define NATIVE_MAILQ_PATH "/usr/bin/mailq"
+#define NATIVE_NEWALIAS_PATH "/usr/bin/newaliases"
+#define NATIVE_COMMAND_DIR "/usr/sbin"
+#define NATIVE_DAEMON_DIR "/usr/libexec/postfix"
+
+#define HAS_DLOPEN
+#endif
+
+ /*
+  * UnixWare, System Release 4.
+  */
+#ifdef UW7				/* UnixWare 7 */
+#define SUPPORTED
+#define UINT32_TYPE	unsigned int
+#define UINT16_TYPE	unsigned short
+#define _PATH_MAILDIR	"/var/mail"
+#define _PATH_BSHELL	"/bin/sh"
+#define _PATH_DEFPATH	"/usr/bin:/usr/ucb"
+#define _PATH_STDPATH	"/usr/bin:/usr/sbin:/usr/ucb"
+#define MISSING_SETENV
+#define HAS_FCNTL_LOCK
+#define INTERNAL_LOCK	MYFLOCK_STYLE_FCNTL
+#define DEF_MAILBOX_LOCK "fcntl, dotlock"
+#define HAS_FSYNC
+#define HAS_DBM
+#define NATIVE_DB_TYPE	"dbm"
+#define ALIAS_DB_MAP	DEF_DB_TYPE ":/etc/mail/aliases"
+#ifndef NO_NIS
+#define HAS_NIS
+#endif
+#define USE_SYS_SOCKIO_H
+#define GETTIMEOFDAY(t)	gettimeofday(t,(struct timezone *) 0)
+#define ROOT_PATH	"/bin:/usr/bin:/sbin:/usr/sbin:/usr/ucb"
+#define FIONREAD_IN_SYS_FILIO_H
+#define DBM_NO_TRAILING_NULL
+#define USE_STATVFS
+#define STATVFS_IN_SYS_STATVFS_H
+#define STRCASECMP_IN_STRINGS_H
+#define SET_H_ERRNO(err) (set_h_errno(err))
+#endif
+
+#ifdef UW21				/* UnixWare 2.1.x */
+#define SUPPORTED
+#define UINT32_TYPE	unsigned int
+#define UINT16_TYPE	unsigned short
+#define _PATH_MAILDIR   "/var/mail"
+#define _PATH_BSHELL    "/bin/sh"
+#define _PATH_DEFPATH   "/usr/bin:/usr/ucb"
+#define _PATH_STDPATH   "/usr/bin:/usr/sbin:/usr/ucb"
+#define MISSING_SETENV
+#define HAS_FCNTL_LOCK
+#define INTERNAL_LOCK	MYFLOCK_STYLE_FCNTL
+#define DEF_MAILBOX_LOCK "fcntl, dotlock"
+#define HAS_FSYNC
+#define HAS_DBM
+#define NATIVE_DB_TYPE     "dbm"
+#define ALIAS_DB_MAP    DEF_DB_TYPE ":/etc/mail/aliases"
+#ifndef NO_NIS
+#define HAS_NIS */
+#endif
+#define USE_SYS_SOCKIO_H
+#define GETTIMEOFDAY(t) gettimeofday(t,NULL)
+#define ROOT_PATH       "/bin:/usr/bin:/sbin:/usr/sbin:/usr/ucb"
+#define FIONREAD_IN_SYS_FILIO_H
+#define DBM_NO_TRAILING_NULL
+#define USE_STATVFS
+#define STATVFS_IN_SYS_STATVFS_H
+#endif
+
+ /*
+  * AIX: a SYSV-flavored hybrid. NB: fcntl() and flock() access the same
+  * underlying locking primitives.
+  */
+#if defined(AIX5) || defined(AIX6)
+#define SUPPORTED
+#define UINT32_TYPE	unsigned int
+#define UINT16_TYPE	unsigned short
+#define MISSING_SETENV
+#define USE_PATHS_H
+#ifndef _PATH_BSHELL
+#define _PATH_BSHELL	"/bin/sh"
+#endif
+#ifndef _PATH_MAILDIR
+#define _PATH_MAILDIR   "/var/spool/mail"	/* paths.h lies */
+#endif
+#ifndef _PATH_DEFPATH
+#define _PATH_DEFPATH	"/usr/bin:/usr/ucb"
+#endif
+#ifndef _PATH_STDPATH
+#define _PATH_STDPATH	"/usr/bin:/usr/sbin:/usr/ucb"
+#endif
+#define HAS_FCNTL_LOCK
+#define INTERNAL_LOCK	MYFLOCK_STYLE_FCNTL
+#define DEF_MAILBOX_LOCK "fcntl, dotlock"
+#define USE_SYS_SELECT_H
+#define HAS_FSYNC
+#define HAS_DBM
+#define NATIVE_DB_TYPE	"dbm"
+#define ALIAS_DB_MAP	DEF_DB_TYPE ":/etc/aliases"
+#ifndef NO_NIS
+#define HAS_NIS
+#endif
+#define HAS_SA_LEN
+#define GETTIMEOFDAY(t)	gettimeofday(t,(struct timezone *) 0)
+#define ROOT_PATH	"/bin:/usr/bin:/sbin:/usr/sbin:/usr/ucb"
+#define SOCKADDR_SIZE	socklen_t
+#define SOCKOPT_SIZE	socklen_t
+#define USE_STATVFS
+#define STATVFS_IN_SYS_STATVFS_H
+#define NATIVE_SENDMAIL_PATH "/usr/sbin/sendmail"
+#define NATIVE_MAILQ_PATH "/usr/sbin/mailq"
+#define NATIVE_NEWALIAS_PATH "/usr/sbin/newaliases"
+#define NATIVE_COMMAND_DIR "/usr/sbin"
+#define NATIVE_DAEMON_DIR "/usr/libexec/postfix"
+
+ /*
+  * XXX Need CMSG_SPACE() and CMSG_LEN() but don't want to drag in everything
+  * that comes with _LINUX_SOURCE_COMPAT.
+  */
+#include <sys/socket.h>
+#ifndef CMSG_SPACE
+#define CMSG_SPACE(len) (_CMSG_ALIGN(sizeof(struct cmsghdr)) + _CMSG_ALIGN(len))
+#endif
+#ifndef CMSG_LEN
+#define CMSG_LEN(len) (_CMSG_ALIGN(sizeof(struct cmsghdr)) + (len))
+#endif
+#ifndef NO_IPV6
+#define HAS_IPV6
+#endif
+#define BROKEN_AI_PASSIVE_NULL_HOST
+#define BROKEN_AI_NULL_SERVICE
+#define USE_SYSV_POLL
+#define MYMALLOC_FUZZ	1
+#endif
+
+#ifdef AIX4
+#define SUPPORTED
+#define UINT32_TYPE	unsigned int
+#define UINT16_TYPE	unsigned short
+#define MISSING_SETENV
+#define _PATH_BSHELL	"/bin/sh"
+#define _PATH_MAILDIR   "/var/spool/mail"	/* paths.h lies */
+#define _PATH_DEFPATH	"/usr/bin:/usr/ucb"
+#define _PATH_STDPATH	"/usr/bin:/usr/sbin:/usr/ucb"
+#define HAS_FCNTL_LOCK
+#define INTERNAL_LOCK	MYFLOCK_STYLE_FCNTL
+#define DEF_MAILBOX_LOCK "fcntl, dotlock"
+#define USE_SYS_SELECT_H
+#define HAS_FSYNC
+#define HAS_DBM
+#define NATIVE_DB_TYPE	"dbm"
+#define ALIAS_DB_MAP	DEF_DB_TYPE ":/etc/aliases"
+#ifndef NO_NIS
+#define HAS_NIS
+#endif
+#define HAS_SA_LEN
+#define GETTIMEOFDAY(t)	gettimeofday(t,(struct timezone *) 0)
+#define RESOLVE_H_NEEDS_STDIO_H
+#define ROOT_PATH	"/bin:/usr/bin:/sbin:/usr/sbin:/usr/ucb"
+#define SOCKADDR_SIZE	size_t
+#define SOCKOPT_SIZE	size_t
+#define USE_STATVFS
+#define STATVFS_IN_SYS_STATVFS_H
+#define STRCASECMP_IN_STRINGS_H
+#if 0
+extern time_t time(time_t *);
+extern int seteuid(uid_t);
+extern int setegid(gid_t);
+extern int initgroups(const char *, int);
+
+#endif
+#define NATIVE_SENDMAIL_PATH "/usr/lib/sendmail"
+#define NATIVE_MAILQ_PATH "/usr/sbin/mailq"
+#define NATIVE_NEWALIAS_PATH "/usr/sbin/newaliases"
+#define NATIVE_COMMAND_DIR "/usr/sbin"
+#define NATIVE_DAEMON_DIR "/usr/libexec/postfix"
+
+#define CANT_USE_SEND_RECV_MSG
+#endif
+
+#ifdef AIX3
+#define SUPPORTED
+#define UINT32_TYPE	unsigned int
+#define UINT16_TYPE	unsigned short
+#define MISSING_SETENV
+#define _PATH_BSHELL	"/bin/sh"
+#define _PATH_MAILDIR   "/var/spool/mail"	/* paths.h lies */
+#define _PATH_DEFPATH	"/usr/bin:/usr/ucb"
+#define _PATH_STDPATH	"/usr/bin:/usr/sbin:/usr/ucb"
+#define HAS_FCNTL_LOCK
+#define INTERNAL_LOCK	MYFLOCK_STYLE_FCNTL
+#define DEF_MAILBOX_LOCK "fcntl, dotlock"
+#define USE_SYS_SELECT_H
+#define HAS_FSYNC
+#define HAS_DBM
+#define NATIVE_DB_TYPE	"dbm"
+#define ALIAS_DB_MAP	DEF_DB_TYPE ":/etc/aliases"
+#ifndef NO_NIS
+#define HAS_NIS
+#endif
+#define HAS_SA_LEN
+#define GETTIMEOFDAY(t)	gettimeofday(t,(struct timezone *) 0)
+#define RESOLVE_H_NEEDS_STDIO_H
+#define ROOT_PATH	"/bin:/usr/bin:/sbin:/usr/sbin:/usr/ucb"
+#define SOCKADDR_SIZE	size_t
+#define SOCKOPT_SIZE	size_t
+#define USE_STATFS
+#define STATFS_IN_SYS_STATFS_H
+#define STRCASECMP_IN_STRINGS_H
+extern time_t time(time_t *);
+extern int seteuid(uid_t);
+extern int setegid(gid_t);
+extern int initgroups(const char *, int);
+
+#define NATIVE_SENDMAIL_PATH "/usr/lib/sendmail"
+
+#define CANT_USE_SEND_RECV_MSG
+#endif
+
+ /*
+  * IRIX, a mix of System V Releases.
+  */
+#if defined(IRIX5) || defined(IRIX6)
+#define SUPPORTED
+#define UINT32_TYPE	unsigned int
+#define UINT16_TYPE	unsigned short
+#define MISSING_SETENV
+#define _PATH_MAILDIR	"/var/mail"
+#define _PATH_BSHELL	"/bin/sh"
+#define _PATH_DEFPATH	"/usr/bin:/usr/bsd"
+#define _PATH_STDPATH	"/usr/bin:/usr/sbin:/usr/bsd"
+#define HAS_FCNTL_LOCK
+#define INTERNAL_LOCK	MYFLOCK_STYLE_FCNTL
+#define DEF_MAILBOX_LOCK "fcntl, dotlock"
+#define HAS_FSYNC
+#define HAS_DBM
+#define NATIVE_DB_TYPE	"dbm"
+#define ALIAS_DB_MAP	DEF_DB_TYPE ":/etc/aliases"
+#ifndef NO_NIS
+#define HAS_NIS
+#endif
+#define USE_SYS_SOCKIO_H		/* XXX check */
+#define GETTIMEOFDAY(t)	gettimeofday(t)
+#define ROOT_PATH	"/bin:/usr/bin:/sbin:/usr/sbin:/usr/bsd"
+#define FIONREAD_IN_SYS_FILIO_H		/* XXX check */
+#define DBM_NO_TRAILING_NULL		/* XXX check */
+#define USE_STATVFS
+#define STATVFS_IN_SYS_STATVFS_H
+#define BROKEN_WRITE_SELECT_ON_NON_BLOCKING_PIPE
+#define CANT_USE_SEND_RECV_MSG
+#endif
+
+#if defined(IRIX5)
+#define MISSING_USLEEP
+#endif
+
+#if defined(IRIX6)
+#ifndef NO_IPV6
+#define HAS_IPV6
+#endif
+#define HAS_POSIX_REGEXP
+#define PIPES_CANT_FIONREAD
+#endif
+
+ /*
+  * LINUX.
+  */
+#if defined(LINUX2) || defined(LINUX3) || defined(LINUX4) || defined(LINUX5)
+#define SUPPORTED
+#define UINT32_TYPE	unsigned int
+#define UINT16_TYPE	unsigned short
+#include <features.h>
+#define USE_PATHS_H
+#define HAS_FLOCK_LOCK
+#define HAS_FCNTL_LOCK
+#define INTERNAL_LOCK	MYFLOCK_STYLE_FLOCK
+#define DEF_MAILBOX_LOCK "fcntl, dotlock"	/* RedHat >= 4.x */
+#define HAS_FSYNC
+#define HAS_DB
+#define NATIVE_DB_TYPE	"hash"
+#define ALIAS_DB_MAP	DEF_DB_TYPE ":/etc/aliases"
+#ifndef NO_NIS
+#define HAS_NIS
+#endif
+#define GETTIMEOFDAY(t)	gettimeofday(t,(struct timezone *) 0)
+#define ROOT_PATH	"/bin:/usr/bin:/sbin:/usr/sbin"
+#define FIONREAD_IN_TERMIOS_H
+#define USE_STATFS
+#define STATFS_IN_SYS_VFS_H
+#define PREPEND_PLUS_TO_OPTSTRING
+#define HAS_POSIX_REGEXP
+#define HAS_DLOPEN
+#define NATIVE_SENDMAIL_PATH "/usr/sbin/sendmail"
+#define NATIVE_MAILQ_PATH "/usr/bin/mailq"
+#define NATIVE_NEWALIAS_PATH "/usr/bin/newaliases"
+#define NATIVE_COMMAND_DIR "/usr/sbin"
+#define NATIVE_DAEMON_DIR "/usr/libexec/postfix"
+#ifdef __GLIBC_PREREQ
+#define HAVE_GLIBC_API_VERSION_SUPPORT(maj, min) __GLIBC_PREREQ(maj, min)
+#else
+#define HAVE_GLIBC_API_VERSION_SUPPORT(maj, min) \
+    (defined(__GLIBC__) && \
+	((__GLIBC__ << 16) + __GLIBC_MINOR__ >= ((maj) << 16) + (min)))
+#endif
+#if HAVE_GLIBC_API_VERSION_SUPPORT(2, 1)
+#define SOCKADDR_SIZE	socklen_t
+#define SOCKOPT_SIZE	socklen_t
+#else
+#define NO_SNPRINTF
+#endif
+#ifndef NO_IPV6
+#define HAS_IPV6
+#if HAVE_GLIBC_API_VERSION_SUPPORT(2, 4)
+/* Really 2.3.3 or later, but there's no __GLIBC_MICRO version macro. */
+#define HAVE_GETIFADDRS
+#else
+#define HAS_PROCNET_IFINET6
+#define _PATH_PROCNET_IFINET6 "/proc/net/if_inet6"
+#endif
+#endif
+#include <linux/version.h>
+#if !defined(KERNEL_VERSION)
+#define KERNEL_VERSION(a,b,c) (LINUX_VERSION_CODE + 1)
+#endif
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,2,0)) \
+	|| (defined(__GLIBC__) && __GLIBC__ < 2)
+#define CANT_USE_SEND_RECV_MSG
+#define DEF_SMTP_CACHE_DEMAND	0
+#else
+#define CANT_WRITE_BEFORE_SENDING_FD
+#endif
+#define PREFERRED_RAND_SOURCE	"dev:/dev/urandom"	/* introduced in 1.1 */
+#ifndef NO_EPOLL
+#define EVENTS_STYLE	EVENTS_STYLE_EPOLL	/* introduced in 2.5 */
+#endif
+#define USE_SYSV_POLL
+#ifndef NO_POSIX_GETPW_R
+#if (defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE >= 1) \
+	|| (defined(_XOPEN_SOURCE) && _XOPEN_SOURCE >= 1) \
+	|| (defined(_BSD_SOURCE) && _BSD_SOURCE >= 1) \
+	|| (defined(_SVID_SOURCE) && _SVID_SOURCE >= 1) \
+	|| (defined(_POSIX_SOURCE) && _POSIX_SOURCE >= 1)
+#define HAVE_POSIX_GETPW_R
+#endif
+#endif
+
+#endif
+
+#ifdef LINUX1
+#define SUPPORTED
+#define UINT32_TYPE	unsigned int
+#define UINT16_TYPE	unsigned short
+#define USE_PATHS_H
+#define HAS_FLOCK_LOCK
+#define HAS_FCNTL_LOCK
+#define INTERNAL_LOCK	MYFLOCK_STYLE_FLOCK
+#define DEF_MAILBOX_LOCK "dotlock"	/* verified RedHat 3.03 */
+#define HAS_FSYNC
+#define HAS_DB
+#define NATIVE_DB_TYPE	"hash"
+#define ALIAS_DB_MAP	DEF_DB_TYPE ":/etc/aliases"
+#ifndef NO_NIS
+#define HAS_NIS
+#endif
+#define GETTIMEOFDAY(t)	gettimeofday(t,(struct timezone *) 0)
+#define ROOT_PATH	"/bin:/usr/bin:/sbin:/usr/sbin"
+#define FIONREAD_IN_TERMIOS_H		/* maybe unnecessary */
+#define USE_STATFS
+#define STATFS_IN_SYS_VFS_H
+#define PREPEND_PLUS_TO_OPTSTRING
+#define HAS_POSIX_REGEXP
+#define NATIVE_SENDMAIL_PATH "/usr/sbin/sendmail"
+#define NATIVE_MAILQ_PATH "/usr/bin/mailq"
+#define NATIVE_NEWALIAS_PATH "/usr/bin/newaliases"
+#define NATIVE_COMMAND_DIR "/usr/sbin"
+#define NATIVE_DAEMON_DIR "/usr/libexec/postfix"
+#define CANT_USE_SEND_RECV_MSG
+#define DEF_SMTP_CACHE_DEMAND	0
+#endif
+
+ /*
+  * GNU.
+  */
+#ifdef GNU0
+#define SUPPORTED
+#include <features.h>
+#define USE_PATHS_H
+#define HAS_FCNTL_LOCK
+#define INTERNAL_LOCK	MYFLOCK_STYLE_FCNTL
+#define DEF_MAILBOX_LOCK "fcntl, dotlock"	/* RedHat >= 4.x */
+#define HAS_FSYNC
+#define HAS_DB
+#define NATIVE_DB_TYPE	"hash"
+#define ALIAS_DB_MAP	DEF_DB_TYPE ":/etc/aliases"
+#ifndef NO_NIS
+#define HAS_NIS
+#endif
+#define GETTIMEOFDAY(t)	gettimeofday(t,(struct timezone *) 0)
+#define ROOT_PATH	"/bin:/usr/bin:/sbin:/usr/sbin"
+#define FIONREAD_IN_TERMIOS_H
+#define USE_STATFS
+#define STATFS_IN_SYS_VFS_H
+#define UNIX_DOMAIN_CONNECT_BLOCKS_FOR_ACCEPT
+#define PREPEND_PLUS_TO_OPTSTRING
+#define HAS_POSIX_REGEXP
+#define HAS_DLOPEN
+#define NATIVE_SENDMAIL_PATH "/usr/sbin/sendmail"
+#define NATIVE_MAILQ_PATH "/usr/bin/mailq"
+#define NATIVE_NEWALIAS_PATH "/usr/bin/newaliases"
+#define NATIVE_COMMAND_DIR "/usr/sbin"
+#ifdef DEBIAN
+#define NATIVE_DAEMON_DIR	"/usr/lib/postfix"
+#ifndef DEF_MANPAGE_DIR
+#define DEF_MANPAGE_DIR		"/usr/share/man"
+#endif
+#ifndef DEF_SAMPLE_DIR
+#define DEF_SAMPLE_DIR		"/usr/share/doc/postfix/examples"
+#endif
+#ifndef DEF_README_DIR
+#define DEF_README_DIR		"/usr/share/doc/postfix"
+#endif
+#else
+#define NATIVE_DAEMON_DIR "/usr/libexec/postfix"
+#endif
+#define SOCKADDR_SIZE	socklen_t
+#define SOCKOPT_SIZE	socklen_t
+#ifdef __FreeBSD_kernel__
+#define HAS_DUPLEX_PIPE
+#define HAS_ISSETUGID
+#endif
+#ifndef NO_IPV6
+#define HAS_IPV6
+#ifdef __FreeBSD_kernel__
+#define HAVE_GETIFADDRS
+#else
+#define HAS_PROCNET_IFINET6
+#define _PATH_PROCNET_IFINET6 "/proc/net/if_inet6"
+#endif
+#endif
+#define CANT_USE_SEND_RECV_MSG
+#define DEF_SMTP_CACHE_DEMAND	0
+#define PREFERRED_RAND_SOURCE	"dev:/dev/urandom"
+#endif
+
+ /*
+  * HPUX11 was copied from HPUX10, but can perhaps be trimmed down a bit.
+  */
+#ifdef HPUX11
+#define SUPPORTED
+#define USE_SIG_RETURN
+#define UINT32_TYPE	unsigned int
+#define UINT16_TYPE	unsigned short
+#define HAS_DBM
+#define HAS_FCNTL_LOCK
+#define INTERNAL_LOCK	MYFLOCK_STYLE_FCNTL
+#define DEF_MAILBOX_LOCK "fcntl, dotlock"
+#define HAS_FSYNC
+#define NATIVE_DB_TYPE	"dbm"
+#define ALIAS_DB_MAP	DEF_DB_TYPE ":/etc/mail/aliases"
+#define ROOT_PATH	"/usr/bin:/sbin:/usr/sbin"
+#define MISSING_SETENV
+#ifndef NO_NIS
+#define HAS_NIS
+#endif
+#define GETTIMEOFDAY(t)	gettimeofday(t,(struct timezone *) 0)
+#define _PATH_BSHELL	"/bin/sh"
+#define _PATH_MAILDIR	"/var/mail"
+#define _PATH_DEFPATH	"/usr/bin"
+#define _PATH_STDPATH	"/usr/bin:/sbin:/usr/sbin"
+#define MISSING_SETEUID
+#define HAVE_SETRESUID
+#define MISSING_SETEGID
+#define HAVE_SETRESGID
+extern int h_errno;			/* <netdb.h> imports too much stuff */
+
+#define USE_STATFS
+#define STATFS_IN_SYS_VFS_H
+#define HAS_POSIX_REGEXP
+#define HAS_DLOPEN
+#define NATIVE_SENDMAIL_PATH "/usr/sbin/sendmail"
+#define NATIVE_MAILQ_PATH "/usr/bin/mailq"
+#define NATIVE_NEWALIAS_PATH "/usr/bin/newaliases"
+#define NATIVE_COMMAND_DIR "/usr/sbin"
+#define NATIVE_DAEMON_DIR "/usr/libexec/postfix"
+#endif
+
+#ifdef HPUX10
+#define SUPPORTED
+#define USE_SIG_RETURN
+#define UINT32_TYPE	unsigned int
+#define UINT16_TYPE	unsigned short
+#define HAS_DBM
+#define HAS_FCNTL_LOCK
+#define INTERNAL_LOCK	MYFLOCK_STYLE_FCNTL
+#define DEF_MAILBOX_LOCK "fcntl, dotlock"
+#define HAS_FSYNC
+#define NATIVE_DB_TYPE	"dbm"
+#define ALIAS_DB_MAP	DEF_DB_TYPE ":/etc/mail/aliases"
+#define ROOT_PATH	"/usr/bin:/sbin:/usr/sbin"
+#define MISSING_SETENV
+#ifndef NO_NIS
+#define HAS_NIS
+#endif
+#define GETTIMEOFDAY(t)	gettimeofday(t,(struct timezone *) 0)
+#define _PATH_BSHELL	"/bin/sh"
+#define _PATH_MAILDIR	"/var/mail"
+#define _PATH_DEFPATH	"/usr/bin"
+#define _PATH_STDPATH	"/usr/bin:/sbin:/usr/sbin"
+#define MISSING_SETEUID
+#define HAVE_SETRESUID
+#define MISSING_SETEGID
+#define HAVE_SETRESGID
+extern int h_errno;			/* <netdb.h> imports too much stuff */
+
+#define USE_STATFS
+#define STATFS_IN_SYS_VFS_H
+#define HAS_POSIX_REGEXP
+#define HAS_SHL_LOAD
+#define NATIVE_SENDMAIL_PATH "/usr/sbin/sendmail"
+#define NATIVE_MAILQ_PATH "/usr/bin/mailq"
+#define NATIVE_NEWALIAS_PATH "/usr/bin/newaliases"
+#define NATIVE_COMMAND_DIR "/usr/sbin"
+#define NATIVE_DAEMON_DIR "/usr/libexec/postfix"
+#endif
+
+#ifdef HPUX9
+#define SUPPORTED
+#define USE_SIG_RETURN
+#define UINT32_TYPE	unsigned int
+#define UINT16_TYPE	unsigned short
+#define HAS_DBM
+#define HAS_FCNTL_LOCK
+#define INTERNAL_LOCK	MYFLOCK_STYLE_FCNTL
+#define DEF_MAILBOX_LOCK "fcntl, dotlock"
+#define HAS_FSYNC
+#ifndef NO_NIS
+#define HAS_NIS
+#endif
+#define MISSING_SETENV
+#define MISSING_RLIMIT_FSIZE
+#define GETTIMEOFDAY(t)	gettimeofday(t,(struct timezone *) 0)
+#define NATIVE_DB_TYPE	"dbm"
+#define ALIAS_DB_MAP	DEF_DB_TYPE ":/usr/lib/aliases"
+#define ROOT_PATH	"/bin:/usr/bin:/etc"
+#define _PATH_BSHELL	"/bin/sh"
+#define _PATH_MAILDIR	"/usr/mail"
+#define _PATH_DEFPATH	"/bin:/usr/bin"
+#define _PATH_STDPATH	"/bin:/usr/bin:/etc"
+#define MISSING_SETEUID
+#define HAVE_SETRESUID
+#define MISSING_SETEGID
+#define HAVE_SETRESGID
+extern int h_errno;
+
+#define USE_ULIMIT			/* no setrlimit() */
+#define USE_STATFS
+#define STATFS_IN_SYS_VFS_H
+#define HAS_POSIX_REGEXP
+#define HAS_SHL_LOAD
+#define NATIVE_SENDMAIL_PATH "/usr/bin/sendmail"
+#define NATIVE_MAILQ_PATH "/usr/bin/mailq"
+#define NATIVE_NEWALIAS_PATH "/usr/bin/newaliases"
+#define NATIVE_DAEMON_DIR "/usr/libexec/postfix"
+#endif
+
+ /*
+  * NEXTSTEP3, without -lposix, because its naming service is broken.
+  */
+#ifdef NEXTSTEP3
+#define SUPPORTED
+#define UINT32_TYPE	unsigned int
+#define UINT16_TYPE	unsigned short
+#define HAS_DBM
+#define HAS_FLOCK_LOCK
+#define INTERNAL_LOCK	MYFLOCK_STYLE_FLOCK
+#define DEF_MAILBOX_LOCK "flock, dotlock"
+#define USE_STATFS
+#define HAVE_SYS_DIR_H
+#define STATFS_IN_SYS_VFS_H
+#define HAS_FSYNC
+#ifndef NO_NIS
+#define HAS_NIS
+#endif
+#define HAS_NETINFO
+#define MISSING_SETENV_PUTENV
+#define MISSING_MKFIFO
+#define MISSING_SIGSET_T
+#define MISSING_SIGACTION
+#define MISSING_STD_FILENOS
+#define MISSING_SETSID
+#define MISSING_WAITPID
+#define MISSING_UTIMBUF
+#define HAS_WAIT4
+#define WAIT_STATUS_T union wait
+#define NORMAL_EXIT_STATUS(x) (WIFEXITED(x) && !WEXITSTATUS (x))
+#define GETTIMEOFDAY(t)	gettimeofday(t,(struct timezone *) 0)
+#define _PATH_MAILDIR	"/usr/spool/mail"
+#define _PATH_BSHELL	"/bin/sh"
+#define _PATH_DEFPATH	"/bin:/usr/bin:/usr/ucb"
+#define _PATH_STDPATH	"/bin:/usr/bin:/usr/ucb"
+#define ROOT_PATH	"/bin:/usr/bin:/usr/etc:/usr/ucb"
+#define NATIVE_DB_TYPE	"dbm"
+#define ALIAS_DB_MAP	"netinfo:/aliases"
+#include <libc.h>
+#define MISSING_POSIX_S_IS
+#define MISSING_POSIX_S_MODES
+/* It's amazing what is all missing...	*/
+#define isascii(c)	((unsigned)(c)<=0177)
+extern int opterr;
+typedef unsigned short mode_t;
+
+#define MISSING_PID_T
+#define MISSING_STRFTIME_E
+#define FD_CLOEXEC	1
+#define O_NONBLOCK	O_NDELAY
+#define WEXITSTATUS(x)	((x).w_retcode)
+#define WTERMSIG(x)	((x).w_termsig)
+#endif
+
+ /*
+  * OPENSTEP does not have posix (some fix...)
+  */
+#ifdef OPENSTEP4
+#define SUPPORTED
+#define UINT32_TYPE	unsigned int
+#define UINT16_TYPE	unsigned short
+#define HAS_DBM
+#define HAS_FLOCK_LOCK
+#define INTERNAL_LOCK	MYFLOCK_STYLE_FLOCK
+#define DEF_MAILBOX_LOCK "flock, dotlock"
+#define USE_STATFS
+#define HAVE_SYS_DIR_H
+#define STATFS_IN_SYS_VFS_H
+#define HAS_FSYNC
+#ifndef NO_NIS
+#define HAS_NIS
+#endif
+#define HAS_NETINFO
+#define MISSING_SETENV_PUTENV
+#define MISSING_MKFIFO
+#define MISSING_SIGSET_T
+#define MISSING_SIGACTION
+#define MISSING_STD_FILENOS
+#define MISSING_SETSID
+#define MISSING_WAITPID
+#define MISSING_UTIMBUF
+#define HAS_WAIT4
+#define WAIT_STATUS_T union wait
+#define NORMAL_EXIT_STATUS(x) (WIFEXITED(x) && !WEXITSTATUS (x))
+#define GETTIMEOFDAY(t)	gettimeofday(t,(struct timezone *) 0)
+#define _PATH_MAILDIR	"/usr/spool/mail"
+#define _PATH_BSHELL	"/bin/sh"
+#define _PATH_DEFPATH	"/bin:/usr/bin:/usr/ucb"
+#define _PATH_STDPATH	"/bin:/usr/bin:/usr/ucb"
+#define ROOT_PATH	"/bin:/usr/bin:/usr/etc:/usr/ucb"
+#define NATIVE_DB_TYPE	"dbm"
+#define ALIAS_DB_MAP	"netinfo:/aliases"
+#include <libc.h>
+#define MISSING_POSIX_S_IS
+#define MISSING_POSIX_S_MODES
+/* It's amazing what is all missing...	*/
+#define isascii(c)	((unsigned)(c)<=0177)
+extern int opterr;
+typedef unsigned short mode_t;
+
+#define MISSING_PID_T
+#define MISSING_STRFTIME_E
+#define FD_CLOEXEC	1
+#define O_NONBLOCK	O_NDELAY
+#define WEXITSTATUS(x)	((x).w_retcode)
+#define WTERMSIG(x)	((x).w_termsig)
+#endif
+
+#ifdef ReliantUnix543
+#define SUPPORTED
+#define UINT32_TYPE	unsigned int
+#define UINT16_TYPE	unsigned short
+#define MISSING_SETENV
+#define _PATH_DEFPATH	"/usr/bin:/usr/ucb"
+#define _PATH_BSHELL	"/bin/sh"
+#define _PATH_MAILDIR	"/var/spool/mail"
+#define HAS_FCNTL_LOCK
+#define INTERNAL_LOCK	MYFLOCK_STYLE_FCNTL
+#define DEF_MAILBOX_LOCK "fcntl, dotlock"
+#define HAS_FSYNC
+#define FIONREAD_IN_SYS_FILIO_H
+#define USE_SYS_SOCKIO_H
+#define HAS_DBM
+#define NATIVE_DB_TYPE	"dbm"
+#define ALIAS_DB_MAP	DEF_DB_TYPE ":/var/adm/sendmail/aliases"
+extern int optind;			/* XXX use <getopt.h> */
+extern char *optarg;			/* XXX use <getopt.h> */
+extern int opterr;			/* XXX use <getopt.h> */
+
+#ifndef NO_NIS
+#define HAS_NIS
+#endif
+#define GETTIMEOFDAY(t) gettimeofday(t)
+#define ROOT_PATH	"/bin:/usr/bin:/sbin:/usr/sbin:/usr/ucb"
+#define USE_STATVFS
+#define STATVFS_IN_SYS_STATVFS_H
+#define MISSING_USLEEP
+#endif
+
+#ifdef DCOSX1				/* Siemens Pyramid */
+#define SUPPORTED
+#define UINT32_TYPE	unsigned int
+#define UINT16_TYPE	unsigned short
+#define _PATH_MAILDIR	"/var/mail"
+#define _PATH_BSHELL	"/bin/sh"
+#define _PATH_DEFPATH	"/usr/bin:/usr/ucb"
+#define _PATH_STDPATH	"/usr/bin:/usr/sbin:/usr/ucb"
+#define MISSING_SETENV
+#define HAS_FCNTL_LOCK
+#define INTERNAL_LOCK	MYFLOCK_STYLE_FCNTL
+#define DEF_MAILBOX_LOCK "fcntl, dotlock"
+#define HAS_FSYNC
+#define NATIVE_DB_TYPE	"hash"
+#define ALIAS_DB_MAP	DEF_DB_TYPE ":/etc/aliases"
+/* Uncomment the following line if you have NIS package installed */
+/* #define HAS_NIS */
+#define USE_SYS_SOCKIO_H
+#define GETTIMEOFDAY(t) gettimeofday(t,NULL)
+#define ROOT_PATH	"/bin:/usr/bin:/sbin:/usr/sbin:/usr/ucb"
+#define FIONREAD_IN_SYS_FILIO_H
+#define DBM_NO_TRAILING_NULL
+#define USE_STATVFS
+#define STATVFS_IN_SYS_STATVFS_H
+#ifndef S_ISSOCK
+#define S_ISSOCK(mode)	((mode&0xF000) == 0xC000)
+#endif
+#endif
+
+#ifdef SCO5
+#define SUPPORTED
+#include <sys/socket.h>
+extern int h_errno;
+
+#define UINT32_TYPE	unsigned int
+#define UINT16_TYPE	unsigned short
+#define _PATH_MAILDIR	"/usr/spool/mail"
+#define _PATH_BSHELL	"/bin/sh"
+#define _PATH_DEFPATH	"/bin:/usr/bin"
+#define USE_PATHS_H
+#define HAS_FCNTL_LOCK
+#define INTERNAL_LOCK	MYFLOCK_STYLE_FCNTL
+#define DEF_MAILBOX_LOCK "fcntl, dotlock"
+#define HAS_FSYNC
+#define HAS_DBM
+#define NATIVE_DB_TYPE	"dbm"
+#define ALIAS_DB_MAP	DEF_DB_TYPE ":/etc/mail/aliases"
+#define DBM_NO_TRAILING_NULL
+#ifndef NO_NIS
+#define HAS_NIS
+#endif
+#define GETTIMEOFDAY(t)	gettimeofday(t,(struct timezone *) 0)
+#define ROOT_PATH	"/bin:/etc:/usr/bin:/tcb/bin"
+#define USE_STATVFS
+#define STATVFS_IN_SYS_STATVFS_H
+#define MISSING_SETENV
+#define STRCASECMP_IN_STRINGS_H
+/* SCO5 misses just S_ISSOCK, the others are there
+ * Use C_ISSOCK definition from cpio.h.
+ */
+#include <cpio.h>
+#define S_ISSOCK(mode)	(((mode) & (S_IFMT)) == (C_ISSOCK))
+#define CANT_USE_SEND_RECV_MSG
+#define DEF_SMTP_CACHE_DEMAND	0
+#endif
+
+ /*
+  * We're not going to try to guess like configure does.
+  */
+#ifndef SUPPORTED
+#error "unsupported platform"
+#endif
+
+ /*
+  * Allow command line flags to override native settings
+  */
+#ifndef DEF_COMMAND_DIR
+#ifdef NATIVE_COMMAND_DIR
+#define DEF_COMMAND_DIR NATIVE_COMMAND_DIR
+#endif
+#endif
+
+#ifndef DEF_DAEMON_DIR
+#ifdef NATIVE_DAEMON_DIR
+#define DEF_DAEMON_DIR NATIVE_DAEMON_DIR
+#endif
+#endif
+
+#ifndef DEF_SENDMAIL_PATH
+#ifdef NATIVE_SENDMAIL_PATH
+#define DEF_SENDMAIL_PATH NATIVE_SENDMAIL_PATH
+#endif
+#endif
+
+#ifndef DEF_MAILQ_PATH
+#ifdef NATIVE_MAILQ_PATH
+#define DEF_MAILQ_PATH NATIVE_MAILQ_PATH
+#endif
+#endif
+
+#ifndef DEF_NEWALIAS_PATH
+#ifdef NATIVE_NEWALIAS_PATH
+#define DEF_NEWALIAS_PATH NATIVE_NEWALIAS_PATH
+#endif
+#endif
+
+#ifndef DEF_DB_TYPE
+#define DEF_DB_TYPE	NATIVE_DB_TYPE
+#endif
+
+#define CAST_ANY_PTR_TO_INT(cptr)	((int) (long) (cptr))
+#define CAST_INT_TO_VOID_PTR(ival)	((void *) (long) (ival))
+
+#ifdef DUP2_DUPS_CLOSE_ON_EXEC
+/* dup2_pass_on_exec() can be found in util/sys_compat.c */
+extern int dup2_pass_on_exec(int oldd, int newd);
+
+#define DUP2 dup2_pass_on_exec
+#else
+#define DUP2 dup2
+#endif
+
+#ifdef PREPEND_PLUS_TO_OPTSTRING
+#define GETOPT(argc, argv, str)	getopt((argc), (argv), "+" str)
+#else
+#define GETOPT(argc, argv, str) getopt((argc), (argv), (str))
+#endif
+#define OPTIND  (optind > 0 ? optind : 1)
+
+ /*
+  * Check for required but missing definitions.
+  */
+#if !defined(HAS_FCNTL_LOCK) && !defined(HAS_FLOCK_LOCK)
+#error "define HAS_FCNTL_LOCK and/or HAS_FLOCK_LOCK"
+#endif
+
+#if !defined(DEF_MAILBOX_LOCK)
+#error "define DEF_MAILBOX_LOCK"
+#endif
+
+#if !defined(INTERNAL_LOCK)
+#error "define INTERNAL_LOCK"
+#endif
+
+#if defined(USE_STATFS) && defined(USE_STATVFS)
+#error "define USE_STATFS or USE_STATVFS, not both"
+#endif
+
+#if !defined(USE_STATFS) && !defined(USE_STATVFS)
+#error "define USE_STATFS or USE_STATVFS"
+#endif
+
+ /*
+  * Defaults for systems that pre-date IPv6 support.
+  */
+#ifndef HAS_IPV6
+#include <sys/socket.h>
+#define EMULATE_IPV4_ADDRINFO
+#define MISSING_INET_PTON
+#define MISSING_INET_NTOP
+extern const char *inet_ntop(int, const void *, char *, SOCKADDR_SIZE);
+extern int inet_pton(int, const char *, void *);
+
+#endif
+
+ /*
+  * Workaround: after a watchdog alarm signal, wake up from select/poll/etc.
+  * by writing to a pipe. Solaris needs this, and HP-UX apparently, too. The
+  * run-time cost is negligible so we just turn it on for all systems. As a
+  * side benefit, making this code system-independent will simplify the
+  * detection of bit-rot problems.
+  */
+#ifndef NO_WATCHDOG_PIPE
+#define USE_WATCHDOG_PIPE
+#endif
+
+ /*
+  * If we don't have defined a preferred random device above, but the system
+  * has /dev/urandom, then we use that.
+  */
+#if !defined(PREFERRED_RAND_SOURCE) && defined(HAS_DEV_URANDOM)
+#define PREFERRED_RAND_SOURCE	"dev:/dev/urandom"
+#endif
+
+ /*
+  * Defaults for systems without kqueue, /dev/poll or epoll support.
+  * master/multi-server.c and *qmgr/qmgr_transport.c depend on this.
+  */
+#if !defined(EVENTS_STYLE)
+#define EVENTS_STYLE	EVENTS_STYLE_SELECT
+#endif
+
+#define EVENTS_STYLE_SELECT	1	/* Traditional BSD select */
+#define EVENTS_STYLE_KQUEUE	2	/* FreeBSD kqueue */
+#define EVENTS_STYLE_DEVPOLL	3	/* Solaris /dev/poll */
+#define EVENTS_STYLE_EPOLL	4	/* Linux epoll */
+
+ /*
+  * We use poll() for read/write time limit enforcement on modern systems. We
+  * use select() on historical systems without poll() support. And on systems
+  * where poll() is not implemented for some file handle types, we try to use
+  * select() as a fall-back solution (MacOS X needs this).
+  */
+#if !defined(USE_SYSV_POLL) && !defined(USE_SYSV_POLL_THEN_SELECT)
+#define USE_BSD_SELECT
+#endif
+
+ /*
+  * The Postfix 2.9 post-install workaround assumes that the inet_protocols
+  * default value is "ipv4" when Postfix is compiled without IPv6 support.
+  */
+#ifndef DEF_INET_PROTOCOLS
+#ifdef HAS_IPV6
+#define DEF_INET_PROTOCOLS	INET_PROTO_NAME_ALL
+#else
+#define DEF_INET_PROTOCOLS	INET_PROTO_NAME_IPV4
+#endif
+#endif
+
+ /*
+  * Defaults for systems that pre-date POSIX socklen_t.
+  */
+#ifndef SOCKADDR_SIZE
+#define SOCKADDR_SIZE	int
+#endif
+
+#ifndef SOCKOPT_SIZE
+#define SOCKOPT_SIZE	int
+#endif
+
+ /*
+  * Defaults for normal systems.
+  */
+#ifndef LOCAL_LISTEN
+#define LOCAL_LISTEN	unix_listen
+#define LOCAL_ACCEPT	unix_accept
+#define LOCAL_CONNECT	unix_connect
+#define LOCAL_TRIGGER	unix_trigger
+#define LOCAL_SEND_FD	unix_send_fd
+#define LOCAL_RECV_FD	unix_recv_fd
+#endif
+
+#if !defined (HAVE_SYS_NDIR_H) && !defined (HAVE_SYS_DIR_H) \
+	&& !defined (HAVE_NDIR_H)
+#define HAVE_DIRENT_H
+#endif
+
+#ifndef WAIT_STATUS_T
+typedef int WAIT_STATUS_T;
+
+#define NORMAL_EXIT_STATUS(status)	((status) == 0)
+#endif
+
+#ifdef NO_POSIX_GETPW_R
+#undef HAVE_POSIX_GETPW_R
+#endif
+
+#ifdef NO_DB
+#undef HAS_DB
+#endif
+
+#ifndef OCTAL_TO_UNSIGNED
+#define OCTAL_TO_UNSIGNED(res, str)	((res) = strtoul((str), (char **) 0, 8))
+#endif
+
+ /*
+  * Avoid useless type mis-matches when using sizeof in an integer context.
+  */
+#define INT_SIZEOF(foo)	((int) sizeof(foo))
+
+ /*
+  * Turn on the compatibility stuff.
+  */
+#ifdef MISSING_UTIMBUF
+struct utimbuf {
+    time_t  actime;
+    time_t  modtime;
+};
+
+#endif
+
+#ifdef MISSING_STRERROR
+extern const char *strerror(int);
+
+#endif
+
+#if defined (MISSING_SETENV) || defined (MISSING_SETENV_PUTENV)
+extern int setenv(const char *, const char *, int);
+
+#endif
+
+#ifdef MISSING_SETEUID
+extern int seteuid(uid_t euid);
+
+#endif
+
+#ifdef MISSING_SETEGID
+extern int setegid(gid_t egid);
+
+#endif
+
+#ifdef MISSING_MKFIFO
+extern int mkfifo(char *, int);
+
+#endif
+
+#ifdef MISSING_WAITPID
+extern int waitpid(int, WAIT_STATUS_T *status, int options);
+
+#endif
+
+#ifdef MISSING_SETSID
+extern int setsid(void);
+
+#endif
+
+#ifndef HAS_CLOSEFROM
+extern int closefrom(int);
+
+#endif
+
+#ifdef MISSING_STD_FILENOS
+#define STDIN_FILENO	0
+#define STDOUT_FILENO	1
+#define STDERR_FILENO	2
+#endif
+
+#ifdef MISSING_PID_T
+typedef int pid_t;
+
+#endif
+
+#ifdef MISSING_POSIX_S_IS
+#define S_ISBLK(mode)	(((mode) & (_S_IFMT)) == (_S_IFBLK))
+#define S_ISCHR(mode)	(((mode) & (_S_IFMT)) == (_S_IFCHR))
+#define S_ISDIR(mode)	(((mode) & (_S_IFMT)) == (_S_IFDIR))
+#define S_ISSOCK(mode)	(((mode) & (_S_IFMT)) == (_S_IFSOCK))
+#define S_ISFIFO(mode)	(((mode) & (_S_IFMT)) == (_S_IFIFO))
+#define S_ISREG(mode)	(((mode) & (_S_IFMT)) == (_S_IFREG))
+#define S_ISLNK(mode)	(((mode) & (_S_IFMT)) == (_S_IFLNK))
+#endif
+
+#ifdef MISSING_POSIX_S_MODES
+#define S_IRUSR	_S_IRUSR
+#define S_IRGRP	0000040
+#define S_IROTH	0000004
+#define S_IWUSR	_S_IWUSR
+#define S_IWGRP	0000020
+#define S_IWOTH	0000002
+#define S_IXUSR	_S_IXUSR
+#define S_IXGRP	0000010
+#define S_IXOTH	0000001
+#define	S_IRWXU	(S_IRUSR | S_IWUSR | S_IXUSR)
+#endif
+
+ /*
+  * Memory alignment of memory allocator results. By default we align for
+  * doubles.
+  */
+#ifndef ALIGN_TYPE
+#if defined(__hpux) && defined(__ia64)
+#define ALIGN_TYPE	__float80
+#elif defined(__ia64__)
+#define ALIGN_TYPE	long double
+#else
+#define ALIGN_TYPE	double
+#endif
+#endif
+
+ /*
+  * Clang-style attribute tests.
+  * 
+  * XXX Without the unconditional test below, gcc 4.6 will barf on ``elif
+  * defined(__clang__) && __has_attribute(__whatever__)'' with error message
+  * ``missing binary operator before token "("''.
+  */
+#ifndef __has_attribute
+#define __has_attribute(x) 0
+#endif					/* __has_attribute */
+
+ /*
+  * Need to specify what functions never return, so that the compiler can
+  * warn for missing initializations and other trouble. However, OPENSTEP4
+  * gcc 2.7.x cannot handle this so we define this only if NORETURN isn't
+  * already defined above.
+  * 
+  * Data point: gcc 2.7.2 has __attribute__ (Wietse Venema) but gcc 2.6.3 does
+  * not (Clive Jones). So we'll set the threshold at 2.7.
+  */
+#ifndef NORETURN
+#if (__GNUC__ == 2 && __GNUC_MINOR__ >= 7) || __GNUC__ >= 3
+#define NORETURN	void __attribute__((__noreturn__))
+#elif defined(__clang__) && __has_attribute(__noreturn__)
+#define NORETURN	void __attribute__((__noreturn__))
+#else
+#define NORETURN	void
+#endif
+#endif					/* NORETURN */
+
+ /*
+  * Turn on format string argument checking. This is more accurate than
+  * printfck, but it misses #ifdef-ed code. XXX I am just guessing at what
+  * gcc versions support this. In order to turn this off for some platforms,
+  * specify #define PRINTFLIKE and #define SCANFLIKE in the system-dependent
+  * sections above.
+  */
+#ifndef PRINTFLIKE
+#if (__GNUC__ == 2 && __GNUC_MINOR__ >= 7) || __GNUC__ >= 3
+#define PRINTFLIKE(x,y) __attribute__ ((format (printf, (x), (y))))
+#elif defined(__clang__) && __has_attribute(__format__)
+#define PRINTFLIKE(x,y)	__attribute__ ((__format__ (__printf__, (x), (y))))
+#else
+#define PRINTFLIKE(x,y)
+#endif
+#endif					/* PRINTFLIKE */
+
+#ifndef SCANFLIKE
+#if (__GNUC__ == 2 && __GNUC_MINOR__ >= 7) || __GNUC__ >= 3
+#define SCANFLIKE(x,y) __attribute__ ((format (scanf, (x), (y))))
+#elif defined(__clang__) && __has_attribute(__format__)
+#define SCANFLIKE(x,y) __attribute__ ((__format__ (__scanf__, (x), (y))))
+#else
+#define SCANFLIKE(x,y)
+#endif
+#endif					/* SCANFLIKE */
+
+ /*
+  * Some gcc implementations don't grok these attributes with pointer to
+  * function. Again, wild guess of what is supported. To override, specify
+  * #define PRINTFPTRLIKE  in the system-dependent sections above.
+  */
+#ifndef PRINTFPTRLIKE
+#if (__GNUC__ >= 3)			/* XXX Rough estimate */
+#define PRINTFPTRLIKE(x,y) PRINTFLIKE(x,y)
+#elif defined(__clang__) && __has_attribute(__format__)
+#define PRINTFPTRLIKE(x,y) __attribute__ ((__format__ (__printf__, (x), (y))))
+#else
+#define PRINTFPTRLIKE(x,y)
+#endif
+#endif
+
+ /*
+  * Compiler optimization hint. This makes sense only for code in a
+  * performance-critical loop.
+  */
+#ifndef EXPECTED
+#if defined(__GNUC__) && (__GNUC__ > 2)
+#define EXPECTED(x)	__builtin_expect(!!(x), 1)
+#define UNEXPECTED(x)	__builtin_expect(!!(x), 0)
+#else
+#define EXPECTED(x)	(x)
+#define UNEXPECTED(x)	(x)
+#endif
+#endif
+
+ /*
+  * Warn about ignored function result values that must never be ignored.
+  * Typically, this is for error results from "read" functions that normally
+  * write to output parameters (for example, stat- or scanf-like functions)
+  * or from functions that have other useful side effects (for example,
+  * fseek- or rename-like functions).
+  * 
+  * DO NOT use this for functions that write to a stream; it is entirely
+  * legitimate to detect write errors with fflush() or fclose() only. On the
+  * other hand most (but not all) functions that read from a stream must
+  * never ignore result values.
+  * 
+  * XXX Prepending "(void)" won't shut up GCC. Clang behaves as expected.
+  */
+#if ((__GNUC__ == 3 && __GNUC_MINOR__ >= 4) || __GNUC__ > 3)
+#define WARN_UNUSED_RESULT __attribute__((warn_unused_result))
+#elif defined(__clang__) && __has_attribute(warn_unused_result)
+#define WARN_UNUSED_RESULT __attribute__((warn_unused_result))
+#else
+#define WARN_UNUSED_RESULT
+#endif
+
+ /*
+  * ISO C says that the "volatile" qualifier protects against optimizations
+  * that cause longjmp() to clobber local variables.
+  */
+#ifndef NOCLOBBER
+#define NOCLOBBER volatile
+#endif
+
+ /*
+  * Bit banging!! There is no official constant that defines the INT_MAX
+  * equivalent for off_t, ssize_t, etc. Wietse came up with the following
+  * macro that works as long as off_t, ssize_t, etc. use one's or two's
+  * complement logic (that is, the maximum value is binary 01...1). Don't
+  * use right-shift for signed types: the result is implementation-defined.
+  */
+#include <limits.h>
+#define __MAXINT__(T) ((T) ~(((T) 1) << ((sizeof(T) * CHAR_BIT) - 1)))
+#ifndef OFF_T_MAX
+#define OFF_T_MAX __MAXINT__(off_t)
+#endif
+
+#ifndef SSIZE_T_MAX
+#define SSIZE_T_MAX __MAXINT__(ssize_t)
+#endif
+
+ /*
+  * Setting globals like h_errno can be problematic when Postfix is linked
+  * with multi-threaded libraries.
+  */
+#ifndef SET_H_ERRNO
+#define SET_H_ERRNO(err) (h_errno = (err))
+#endif
+
+ /*
+  * Don't mix socket message send/receive calls with socket stream read/write
+  * calls. The fact that you can get away with it only on some stacks implies
+  * that there is no long-term guarantee.
+  */
+#ifndef CAN_WRITE_BEFORE_SENDING_FD
+#define CANT_WRITE_BEFORE_SENDING_FD
+#endif
+
+ /*
+  * FreeBSD sendmsg(2) says that after sending a file descriptor, the sender
+  * must not immediately close the descriptor, otherwise it may close the
+  * descriptor before it is actually sent.
+  */
+#ifndef DONT_WAIT_AFTER_SENDING_FD
+#define MUST_READ_AFTER_SENDING_FD
+#endif
+
+ /*
+  * Hope for the best.
+  */
+#ifndef UINT32_TYPE
+#define	UINT32_TYPE uint32_t
+#define UINT16_TYPE uint16_t
+#endif
+#define UINT32_SIZE	4
+#define UINT16_SIZE	2
+
+ /*
+  * For the sake of clarity.
+  */
+#ifndef HAVE_CONST_CHAR_STAR
+typedef const char *CONST_CHAR_STAR;
+
+#endif
+
+ /*
+  * Safety. On some systems, ctype.h misbehaves with non-ASCII or negative
+  * characters. More importantly, Postfix uses the ISXXX() macros to ensure
+  * protocol compliance, so we have to rule out non-ASCII characters.
+  * 
+  * XXX The (unsigned char) casts in isalnum() etc arguments are unnecessary
+  * because the ISASCII() guard already ensures that the values are
+  * non-negative; the casts are done anyway to shut up chatty compilers.
+  */
+#define ISASCII(c)	isascii(_UCHAR_(c))
+#define _UCHAR_(c)	((unsigned char)(c))
+#define ISALNUM(c)	(ISASCII(c) && isalnum((unsigned char)(c)))
+#define ISALPHA(c)	(ISASCII(c) && isalpha((unsigned char)(c)))
+#define ISCNTRL(c)	(ISASCII(c) && iscntrl((unsigned char)(c)))
+#define ISDIGIT(c)	(ISASCII(c) && isdigit((unsigned char)(c)))
+#define ISGRAPH(c)	(ISASCII(c) && isgraph((unsigned char)(c)))
+#define ISLOWER(c)	(ISASCII(c) && islower((unsigned char)(c)))
+#define ISPRINT(c)	(ISASCII(c) && isprint((unsigned char)(c)))
+#define ISPUNCT(c)	(ISASCII(c) && ispunct((unsigned char)(c)))
+#define ISSPACE(c)	(ISASCII(c) && isspace((unsigned char)(c)))
+#define ISUPPER(c)	(ISASCII(c) && isupper((unsigned char)(c)))
+#define TOLOWER(c)	(ISUPPER(c) ? tolower((unsigned char)(c)) : (c))
+#define TOUPPER(c)	(ISLOWER(c) ? toupper((unsigned char)(c)) : (c))
+
+ /*
+  * Character sets for parsing.
+  */
+#define CHARS_COMMA_SP	", \t\r\n"	/* list separator */
+#define CHARS_SPACE	" \t\r\n"	/* word separator */
+#define CHARS_BRACE	"{}"		/* grouping */
+
+ /*
+  * Scaffolding. I don't want to lose messages while the program is under
+  * development.
+  */
+extern int REMOVE(const char *);
+
+/* LICENSE
+/* .ad
+/* .fi
+/*	The Secure Mailer license must be distributed with this software.
+/* AUTHOR(S)
+/*	Wietse Venema
+/*	IBM T.J. Watson Research
+/*	P.O. Box 704
+/*	Yorktown Heights, NY 10598, USA
+/*
+/*	Wietse Venema
+/*	Google, Inc.
+/*	111 8th Avenue
+/*	New York, NY 10011, USA
+/*--*/
+
+#endif