'defines'
#define	ACCEPT_TYPE_ARG1 int
#define	ACCEPT_TYPE_ARG2 struct sockaddr *
#define	ACCEPT_TYPE_ARG3 size_t
#define	ACCEPT_TYPE_RETURN int
#define	ALIGNOF_DOUBLE 4
#define	ALIGNOF_INT 4
#define	ALIGNOF_LONG 4
#define	ALIGNOF_LONG_LONG_INT 4
#define	ALIGNOF_SHORT 2
#define	DEF_PGPORT 5432
#define	DEF_PGPORT_STR "5432"
#define	ENABLE_THREAD_SAFETY 1
#define	GETPWUID_R_5ARG
#define	HAVE_ATEXIT 1
#define	HAVE_CBRT 1
#define	HAVE_CRYPT 1
#define	HAVE_CRYPT_H 1
#define	HAVE_DECL_FDATASYNC 1
#define	HAVE_DECL_F_FULLFSYNC 0
#define	HAVE_DECL_SNPRINTF 1
#define	HAVE_DECL_VSNPRINTF 1
#define	HAVE_DLOPEN 1
#define	HAVE_ENDIAN_H 1
#define	HAVE_FCVT 1
#define	HAVE_FDATASYNC 1
#define	HAVE_FINITE 1
#define	HAVE_FSEEKO 1
#define	HAVE_FUNCNAME__FUNC 1
#define	HAVE_GETADDRINFO 1
#define	HAVE_GETHOSTBYNAME_R 1
#define	HAVE_GETOPT 1
#define	HAVE_GETOPT_H 1
#define	HAVE_GETOPT_LONG 1
#define	HAVE_GETPWUID_R 1
#define	HAVE_GETRUSAGE 1
#define	HAVE_INET_ATON 1
#define	HAVE_INTTYPES_H 1
#define	HAVE_INT_TIMEZONE
#define	HAVE_IPV6 1
#define	HAVE_ISINF 1
#define	HAVE_LANGINFO_H 1
#define	HAVE_LIBBSD 1
#define	HAVE_LIBDL 1
#define	HAVE_LIBM 1
#define	HAVE_LIBNSL 1
#define	HAVE_LIBREADLINE 1
#define	HAVE_LIBRESOLV 1
#define	HAVE_LIBZ 1
#define	HAVE_LL_CONSTANTS 1
#define	HAVE_LONG_LONG_INT_64
#define	HAVE_MEMMOVE 1
#define	HAVE_MEMORY_H 1
#define	HAVE_NETINET_IN_H 1
#define	HAVE_NETINET_TCP_H 1
#define	HAVE_POLL 1
#define	HAVE_POLL_H 1
#define	HAVE_POSIX_SIGNALS
#define	HAVE_PWD_H 1
#define	HAVE_RANDOM 1
#define	HAVE_READLINE_HISTORY_H 1
#define	HAVE_READLINE_READLINE_H 1
#define	HAVE_READLINK 1
#define	HAVE_REPLACE_HISTORY_ENTRY 1
#define	HAVE_RINT 1
#define	HAVE_RL_COMPLETION_APPEND_CHARACTER 1
#define	HAVE_RL_COMPLETION_MATCHES 1
#define	HAVE_RL_FILENAME_COMPLETION_FUNCTION 1
#define	HAVE_SETSID 1
#define	HAVE_SIGPROCMASK 1
#define	HAVE_SIGSETJMP 1
#define	HAVE_SIG_ATOMIC_T 1
#define	HAVE_SNPRINTF 1
#define	HAVE_SPINLOCKS 1
#define	HAVE_SRANDOM 1
#define	HAVE_STDINT_H 1
#define	HAVE_STDLIB_H 1
#define	HAVE_STRDUP 1
#define	HAVE_STRERROR 1
#define	HAVE_STRERROR_R 1
#define	HAVE_STRINGIZE 1
#define	HAVE_STRINGS_H 1
#define	HAVE_STRING_H 1
#define	HAVE_STRTOL 1
#define	HAVE_STRTOLL 1
#define	HAVE_STRTOUL 1
#define	HAVE_STRTOULL 1
#define	HAVE_STRUCT_ADDRINFO 1
#define	HAVE_STRUCT_OPTION 1
#define	HAVE_STRUCT_SOCKADDR_STORAGE 1
#define	HAVE_STRUCT_SOCKADDR_STORAGE_SS_FAMILY 1
#define	HAVE_STRUCT_SOCKADDR_UN 1
#define	HAVE_STRUCT_TM_TM_ZONE 1
#define	HAVE_SYMLINK 1
#define	HAVE_SYSCONF 1
#define	HAVE_SYSLOG 1
#define	HAVE_SYS_IPC_H 1
#define	HAVE_SYS_POLL_H 1
#define	HAVE_SYS_SELECT_H 1
#define	HAVE_SYS_SEM_H 1
#define	HAVE_SYS_SHM_H 1
#define	HAVE_SYS_SOCKET_H 1
#define	HAVE_SYS_STAT_H 1
#define	HAVE_SYS_TIME_H 1
#define	HAVE_SYS_TYPES_H 1
#define	HAVE_SYS_UN_H 1
#define	HAVE_TERMIOS_H 1
#define	HAVE_TM_ZONE 1
#define	HAVE_TOWLOWER 1
#define	HAVE_TZNAME 1
#define	HAVE_UNISTD_H 1
#define	HAVE_UNIX_SOCKETS 1
#define	HAVE_UNSETENV 1
#define	HAVE_UTIME 1
#define	HAVE_UTIMES 1
#define	HAVE_UTIME_H 1
#define	HAVE_VSNPRINTF 1
#define	HAVE_WAITPID 1
#define	HAVE_WCHAR_H 1
#define	HAVE_WCSTOMBS 1
#define	HAVE_WCTYPE_H 1
#define	INT64_FORMAT "%lld"
#define	MAXIMUM_ALIGNOF 4
#define	PACKAGE_BUGREPORT "pgsql-bugs@postgresql.org"
#define	PACKAGE_NAME "PostgreSQL"
#define	PACKAGE_STRING "PostgreSQL 8.1.4"
#define	PACKAGE_TARNAME "postgresql"
#define	PACKAGE_VERSION "8.1.4"
#define	PG_KRB_SRVNAM "postgres"
#define	PG_VERSION "8.1.4"
#define	PG_VERSION_STR "PostgreSQL 8.1.4 on i686-pc-linux-gnu, compiled by GCC gcc (GCC) 4.1.1 20060724 (prerelease) (4.1.1-3mdk)"
#define	SIZEOF_SIZE_T 4
#define	SIZEOF_UNSIGNED_LONG 4
#define	STDC_HEADERS 1
#define	UINT64_FORMAT "%llu"
#define	USE_SYSV_SEMAPHORES 1
#define	USE_SYSV_SHARED_MEMORY 1
#define	_FILE_OFFSET_BITS 64

Documentación de los 'defines'

#define _FILE_OFFSET_BITS 64

#define ACCEPT_TYPE_ARG1 int

#define ACCEPT_TYPE_ARG2 struct sockaddr *

#define ACCEPT_TYPE_ARG3 size_t

#define ACCEPT_TYPE_RETURN int

#define ALIGNOF_DOUBLE 4

#define ALIGNOF_INT 4

#define ALIGNOF_LONG 4

#define ALIGNOF_LONG_LONG_INT 4

#define ALIGNOF_SHORT 2

#define DEF_PGPORT 5432

#define DEF_PGPORT_STR "5432"

#define ENABLE_THREAD_SAFETY 1

#define GETPWUID_R_5ARG

#define HAVE_ATEXIT 1

#define HAVE_CBRT 1

#define HAVE_CRYPT 1

#define HAVE_CRYPT_H 1

#define HAVE_DECL_F_FULLFSYNC 0

#define HAVE_DECL_FDATASYNC 1

#define HAVE_DECL_SNPRINTF 1

#define HAVE_DECL_VSNPRINTF 1

#define HAVE_DLOPEN 1

#define HAVE_ENDIAN_H 1

#define HAVE_FCVT 1

#define HAVE_FDATASYNC 1

#define HAVE_FINITE 1

#define HAVE_FSEEKO 1

#define HAVE_FUNCNAME__FUNC 1

#define HAVE_GETADDRINFO 1

#define HAVE_GETHOSTBYNAME_R 1

#define HAVE_GETOPT 1

#define HAVE_GETOPT_H 1

#define HAVE_GETOPT_LONG 1

#define HAVE_GETPWUID_R 1

#define HAVE_GETRUSAGE 1

#define HAVE_INET_ATON 1

#define HAVE_INT_TIMEZONE

#define HAVE_INTTYPES_H 1

#define HAVE_IPV6 1

#define HAVE_ISINF 1

#define HAVE_LANGINFO_H 1

#define HAVE_LIBBSD 1

#define HAVE_LIBDL 1

#define HAVE_LIBM 1

#define HAVE_LIBNSL 1

#define HAVE_LIBREADLINE 1

#define HAVE_LIBRESOLV 1

#define HAVE_LIBZ 1

#define HAVE_LL_CONSTANTS 1

#define HAVE_LONG_LONG_INT_64

#define HAVE_MEMMOVE 1

#define HAVE_MEMORY_H 1

#define HAVE_NETINET_IN_H 1

#define HAVE_NETINET_TCP_H 1

#define HAVE_POLL 1

#define HAVE_POLL_H 1

#define HAVE_POSIX_SIGNALS

#define HAVE_PWD_H 1

#define HAVE_RANDOM 1

#define HAVE_READLINE_HISTORY_H 1

#define HAVE_READLINE_READLINE_H 1

#define HAVE_READLINK 1

#define HAVE_REPLACE_HISTORY_ENTRY 1

#define HAVE_RINT 1

#define HAVE_RL_COMPLETION_APPEND_CHARACTER 1

#define HAVE_RL_COMPLETION_MATCHES 1

#define HAVE_RL_FILENAME_COMPLETION_FUNCTION 1

#define HAVE_SETSID 1

#define HAVE_SIG_ATOMIC_T 1

#define HAVE_SIGPROCMASK 1

#define HAVE_SIGSETJMP 1

#define HAVE_SNPRINTF 1

#define HAVE_SPINLOCKS 1

#define HAVE_SRANDOM 1

#define HAVE_STDINT_H 1

#define HAVE_STDLIB_H 1

#define HAVE_STRDUP 1

#define HAVE_STRERROR 1

#define HAVE_STRERROR_R 1

#define HAVE_STRING_H 1

#define HAVE_STRINGIZE 1

#define HAVE_STRINGS_H 1

#define HAVE_STRTOL 1

#define HAVE_STRTOLL 1

#define HAVE_STRTOUL 1

#define HAVE_STRTOULL 1

#define HAVE_STRUCT_ADDRINFO 1

#define HAVE_STRUCT_OPTION 1

#define HAVE_STRUCT_SOCKADDR_STORAGE 1

#define HAVE_STRUCT_SOCKADDR_STORAGE_SS_FAMILY 1

#define HAVE_STRUCT_SOCKADDR_UN 1

#define HAVE_STRUCT_TM_TM_ZONE 1

#define HAVE_SYMLINK 1

#define HAVE_SYS_IPC_H 1

#define HAVE_SYS_POLL_H 1

#define HAVE_SYS_SELECT_H 1

#define HAVE_SYS_SEM_H 1

#define HAVE_SYS_SHM_H 1

#define HAVE_SYS_SOCKET_H 1

#define HAVE_SYS_STAT_H 1

#define HAVE_SYS_TIME_H 1

#define HAVE_SYS_TYPES_H 1

#define HAVE_SYS_UN_H 1

#define HAVE_SYSCONF 1

#define HAVE_SYSLOG 1

#define HAVE_TERMIOS_H 1

#define HAVE_TM_ZONE 1

#define HAVE_TOWLOWER 1

#define HAVE_TZNAME 1

#define HAVE_UNISTD_H 1

#define HAVE_UNIX_SOCKETS 1

#define HAVE_UNSETENV 1

#define HAVE_UTIME 1

#define HAVE_UTIME_H 1

#define HAVE_UTIMES 1

#define HAVE_VSNPRINTF 1

#define HAVE_WAITPID 1

#define HAVE_WCHAR_H 1

#define HAVE_WCSTOMBS 1

#define HAVE_WCTYPE_H 1

#define INT64_FORMAT "%lld"

#define MAXIMUM_ALIGNOF 4

#define PACKAGE_BUGREPORT "pgsql-bugs@postgresql.org"

#define PACKAGE_NAME "PostgreSQL"

#define PACKAGE_STRING "PostgreSQL 8.1.4"

#define PACKAGE_TARNAME "postgresql"

#define PACKAGE_VERSION "8.1.4"

#define PG_KRB_SRVNAM "postgres"

#define PG_VERSION "8.1.4"

#define PG_VERSION_STR "PostgreSQL 8.1.4 on i686-pc-linux-gnu, compiled by GCC gcc (GCC) 4.1.1 20060724 (prerelease) (4.1.1-3mdk)"

#define SIZEOF_SIZE_T 4

#define SIZEOF_UNSIGNED_LONG 4

#define STDC_HEADERS 1

#define UINT64_FORMAT "%llu"

#define USE_SYSV_SEMAPHORES 1

#define USE_SYSV_SHARED_MEMORY 1