view src/s/README @ 558:ed498ef2108b

[xemacs-hg @ 2001-05-23 09:59:33 by ben] xemacs.mak: call `ver' to get the exact os version and put it in the installation; suggestion from adrian. behavior-defs.el: Add scroll-in-place, jka-compr, efs, fix up some things. pop.c: Remove BROKEN_CYGWIN. etc\sample.init.el: Rewrite to be much more careful about loading features -- now it decays gracefully even in the complete absence of packages. Also avoid doing obnoxious things when loading efs. configure.in: add some support for eventually turning on file coding by default. Fix numerous places where AC_MSG_WARN had quotes around its arg, which is bad. Replace with []. Same for AC_MSG_ERROR. s\cygwin32.h, s\mingw32.h: remove support for way old beta versions of cygwin. don't put -Wno-sign-compare in the system switches; this isn't a system issue. define BROKEN_SIGIO for cygwin to get C-g support. device-msw.c: signal an error rather than crash with an unavailable network printer (from Mike Alexander). event-msw.c: cleanup headers. fix (hopefully) an error with data corruption when sending to a network connection. fileio.c: Fix evil code that attempts to handle the ~user prefix by (a) always assuming we're referencing ourselves and not even verifying the user -- hence any file with a tilde as its first char is invalid! (b) if there wasn't a slash following the filename, the pointer was set *past* the end of file and we started reading from uninitialized memory. Now we simply treat these as files, always. optionally for 21.4 (doc fix): lread.c: cambia de pas_de_lache_ici -- al minimo usa la palabra certa. frame.c: fix warnings. emacs.c, nt.c, ntproc.c, process-nt.c, realpath.c, unexnt.c: rename MAX_PATH to standard PATH_MAX. process-nt.c, realpath.c: cleanup headers. process-unix.c, sysdep.c, systime.h, syswindows.h: kill BROKEN_CYGWIN and support for way old beta versions of cygwin. sysfile.h: use _MAX_PATH (Windows) preferentially for PATH_MAX if defined. include io.h on Cygwin (we need get_osfhandle()). include sys/fcntl.h always, since we were including it in various header files anyway. unexcw.c: fix up style to conform to standard. remove duplicate definition of PERROR. buffer.c: comment change. database.c, debug.h, device-tty.c, dired-msw.c, glyphs-msw.c: header cleanups (remove places that directly include a system header file, because we have our own layer to do this more cleanly and portably); indentation fixes.
author ben
date Wed, 23 May 2001 09:59:48 +0000
parents 376386a54a3c
children 861f2601a38b
line wrap: on
line source

This directory contains C header files containing
operating-system-specific definitions.  Each file describes a
particular operating system.  The emacs configuration script edits
../config.h to include the appropriate one of these files, and then
each emacs source file includes config.h.

template.h is a generic template for system descriptions; it describes
the parameters a system file can specify.

General XEmacs Changes
---------------------------
The following is a list of those changes made globally across all
files.  They are not marked individually in each header file.  All
other changes should be preceded by a comment /* XEmacs change */.


1. Removed all #defines of [read|write|open|close].  This is now
   handled automatically by checking the INTERRUPTIBLE_IO etc. flags.

2. Removed all instances of #undef SIGIO and replaced them with
   #define BROKEN_SIGIO.  Jamie says:

   /* use BROKEN_SIGIO instead of this kludge -- jwz */

3. All instances of HAVE_GETWD, HAVE_DUP2, HAVE_UNISTD_H, NEED_UNISTD_H,
   HAVE_GETTIMEOFDAY and NEED_REALPATH removed.  We detect these
   automatically with configure.

4. All instances of HAVE_X11 replaced with HAVE_X_WINDOWS.  We don't
   support X10 or earlier so the HAVE_X11 define was purged.

5. Most of the signal crap (e.g. redefining sigsetmask, defining
   POSIX_SIGNALS) has been removed.  There are four possible
   signal paradigms that all systems fall into, and we auto-detect
   them in configure and handle them in syssignal.h.

6. Removed references to INTERRUPT_INPUT.  XEmacs does not use
   this bizarre way of reading input.

7. Removed references to BROKEN_FIONREAD.  FIONREAD is used only
   in INTERRUPT_INPUT and in the select() emulator, neither of
   which are supported in XEmacs.

8. Removed references to NOMULTIPLEJOBS.  This is unused in XEmacs
   and in FSF Emacs.

9. Removed references to HAVE_WAIT_HEADER and WAIT_USE_INT.
   They are unnecessary with the cleaned up syswait.h in XEmacs.
   (We autodetect sys/wait.h).  Instead, #define or #undef
   HAVE_UNION_WAIT.

10. Removed BSTRING.  Not used anywhere. (If the header file
    says there are bugs in bcopy() or the like, however, a
    #define BROKEN_BCOPY is added for reference.)

11. Removed #defines of bcopy, bzero, bcmp, index, rindex.
    XEmacs makes consistent use of the ANSI-equivalent
    functions memcpy, memset, memcmp, strchr, strrchr.

12. '#define subprocesses' removed.  Use '#define NO_SUBPROCESSES'
    if they don't exist.

13. References to HAVE_VFORK removed.  configure detects this.

14. Removed references to SYSV_SYSTEM_DIR, NONSYSTEM_DIR_LIBRARY,
    HAVE_SOCKETS, HAVE_SYSVIPC.  configure detects these.

15. Removed defines of HAVE_TERMIOS, HAVE_TERMIO, and
    HAVE_TCATTR (when HAVE_TERMIOS was also defined).
    configure detects these and systty.h automatically defines
    HAVE_TCATTR when HAVE_TERMIOS is defined.

16. Removed SETPGRP_RELEASES_CTTY.  Not necessary any more, with
    fixed definitions of EMACS_SEPARATE_PROCESS_GROUP et al.

17. Removed defines of NLIST_STRUCT.  configure detects this.

18. Removed defines of _setjmp and _longjmp.  configure detects this.

19. Removed all '#define static' business.  Defines NO_REMAP instead.

20. Removed defines of HAVE_MACH_MACH_H.  configure detects this.