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* b2m.c, emacsclient.c, emacsserver.c, fakemail.c, make-docfile.c,
movemail.c, pop.c:
Do not include <stdlib.h>, as <config.h> does this now.

* b2m.c, emacsserver.c, etags.c, profile.c:
Include <config.h> before any system include files.

* emacsclient.c, emacsserver.c, fakemail.c, movemail.c, pop.c,
test-distrib.c:
(read, write, open, close): Do not undef.

* getopt.c, getopt1.c: Adopt glibc 2.1.2, with the following fix:
(const): Do not define if HAVE_CONFIG_H; that's config.h's job.

* getopt.h: Adopt glibc 2.1.2.

instead of using "pop" on Unix and "pop3" on Windows NT.  "pop3"
has been the standard service name since RFC 1340 was published in
July 1992, so I think it's safe to start using it by default.

authentication, implemented by Kevin L. Mitchel <klmitch@mit.edu>.

server to contain embedded nulls.

pointed out by Chiaki Ishikawa.

functions explicitly.

Kerberos V5 for movemail, including detection of V4 and V5 header
files and libraries.
Include <string.h> when STDC_HEADERS is defined, to get
declarations of string functions.
[KERBEROS5] (socket_connection): Support the current MIT Kerberos
V5 API rather than the old one.
[KERBEROS] (socket_connection): Change a constant name from
SOCKET_ERROR to POP_SOCKET_ERROR to avoid a namespace conflict
with a constant in a header file.

read in separate blocks.

overwritten deep inside krb_realmofhost().  Copy the host name to
avoid conflicts.

(pop_open, pop_trash): Make the trash_started code unconditional.
(socket_connection): Delete casts to void.

Macro SOCKET_ERROR undefined.
Don't declare h_errno.
[!WINDOWSNT]: Define macros recv and send.
[!WINDOWSNT] (POP_SERVICE): Change to pop3.
(pop_open) [WINDOWSNT]: Initialize trash_started.
(have_winsock) [WINDOWSNT]: New variable.
(socket_connection) [WINDOWSNT]: Initialize winsock.
(socket_connection): Use closesocket instead of close.
(getline): Use recv instead of read.
(fullwrite): Use send instead of write.
(pop_trash): Use closesocket instead of close.
(pop_trash) [WINDOWSNT]: Cleanup winsock.
Check if being called recursively by sendline.

fails, store the fact that we've searched it and don't search it
again after reading more data.

(getline): When determining whether or not it's necessary
to grow the input buffer, take into account the null that's stored
at the end of already-read input in the buffer.

defined, and if HAVE_CONFIG_H isn't defined, define
MAIL_USE_POP always (so that this file can be included in
other programs besides emacs).

Only declare h_errno if HAVE_H_ERRNO isn't defined or
HAVE_CONFIG_H isn't defined.

(find_crlf, getline): Instead of using strstr, use a
custom function for finding CRLF.
(my_strstr): Function deleted.

Don't include string.h or strings.h.
Include des.h before krb.h.
Do declare my_strstr.
(getline): Really use my_strstr.
Leave one empty place in server->buffer,
and put a null at the end of the data in it.