subprocesses System can use subprocesses (for M-x shell for example). Defined by default, only MSDOS undefines it.
USE_LISP_UNION_TYPE Define it in lisp.h to make Lisp_Object be a union type instead of the default int.
-** System specific macros, decribed in detail in src/s/template.h
+** System specific macros, described in detail in src/s/template.h
CLASH_DETECTION
COFF
FIRST_PTY_LETTER
HAVE_PTYS
-HAVE_TERMIO
-HAVE_TERMIOS
INTERRUPT_INPUT
NARROWPROTO
SEPCHAR
SYSTEM_TYPE
-** Machine specific macros, decribed in detail in src/m/template.h
-VIRT_ADDR_VARIES
-
** Misc macros
USER_FULL_NAME If defined, overrides the default pw->pw_gecos for getting at the full user name. Only MSDOS overrides the default.
** Replace, the definition is trivial: SWITCH_ENUM_CAST
-** Defines from src/m/*.h and src/s/*.h. Some of these might not be used in the code anymore, so they can be removed. The HAVE_* definitions are probably handled by autoconf, so it might be possible to just remove them from src/[sm]/*.h.
+** Defines from src/s/*.h. Some of these might not be used in the code anymore, so they can be removed. The HAVE_* definitions are probably handled by autoconf, so it might be possible to just remove them from src/s/*.h.
AIX
AMPERSAND_FULL_NAME
-BITS_PER_EMACS_INT
-BITS_PER_LONG
-BITS_PER_CHAR
-BITS_PER_SHORT
-BITS_PER_INT
BROKEN_DATAGRAM_SOCKETS
BROKEN_FIONREAD
BROKEN_GET_CURRENT_DIR_NAME
HAVE_FPATHCONF
HAVE_FREXP
HAVE_FSYNC
-HAVE_FTIME
HAVE_GETCWD
-HAVE_GETDOMAINNAME
HAVE_GETHOSTNAME
HAVE_GETLOADAVG
HAVE_GETPAGESIZE
HAVE_SYS_TIMEB_H
HAVE_SYS_TIME_H
HAVE_TCATTR
-HAVE_TERMIOS_H
HAVE_TIMEVAL
HAVE_TM_ZONE
HAVE_TZSET
NO_TERMIO
NSIG
NSIG_MINIMUM
-NULL
NULL_DEVICE
ORDINARY_LINK
O_APPEND
USG_SUBTTY_WORKS
VALBITS
WRETCODE
-XINT
XOS_NEEDS_TIME_H
-XPNTR
-XSET
-XUINT
_AIX
_ARCH_PPC64
-_CALLBACK_
_FILE_OFFSET_BITS
_LP64
_MALLOC_INTERNAL
_VARARGS_
_WINSOCKAPI_
_WINSOCK_H
-__ELF__
-__FreeBSD__
-__GNUC__
-__GNU_LIBRARY__
-__GNUC_MINOR__
-__NetBSD__
-__OpenBSD__
-__STDC__
-__arch64__
-__cplusplus
-__hpux
-__ia64__
-__linux__
-__mc68000__
-__mips__
_longjmp
_setjmp
_start
chmod
chown
close
-const
creat
ctime
dup
getpid
getuid
gmtime
-i386
index
-init_process
isatty
kill
link
localtime
logb
lseek
-m68k
malloc
mkdir
mktemp