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Simon Tatham 41053e9dcd GTK: fix control flow in do_cmdline().
In commit 4ecc3f3c09 I did a knee-jerk fix of a macro of the form

  #define SECOND_PASS_ONLY { body; }

on the grounds that it was syntax-unsafe, so I wrapped it in the
standard do while(0):

  #define SECOND_PASS_ONLY do { body; } while (0)

But in this case, that was a bogus transformation, because the body
executed 'continue' with the intention of affecting the containing
loop (outside the macro). Moreover, ten lines above the macro
definition was a comment specifically explaining why it _couldn't_ be
wrapped in do while (0) !

Since then I've come up with an alternative break-and-continue-proof
wrapper for macros that are supposed to expand to something that's
syntactically a C statement. So I've used that instead, and while I'm
at it, fixed the neighbouring EXPECTS_ARG as well.

Spotted by Coverity, and well spotted indeed! How embarrassing.
2020-06-21 16:39:47 +01:00
charset Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
contrib kh2reg: stop using deprecated base64.decodestring. 2020-06-14 15:49:36 +01:00
doc Add an option to disable the dynamic host key policy. 2020-06-21 16:39:47 +01:00
icons Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
test Fix mp_{eq,hs}_integer(tiny, huge). 2020-06-14 15:49:36 +01:00
unix GTK: fix control flow in do_cmdline(). 2020-06-21 16:39:47 +01:00
windows Add missing cast in RTF paste data construction. 2020-06-21 16:39:47 +01:00
.gitignore New utility object, StripCtrlChars. 2019-02-20 07:27:22 +00:00
Buildscr Remove white dialog background in MSI user interface. 2020-06-21 16:39:47 +01:00
Buildscr.cv Turn off hardware AES for the Coverity build. 2019-05-05 08:38:37 +01:00
CHECKLST.txt Release checklist updates post-0.72. 2019-07-20 08:13:07 +01:00
LATEST.VER Update version number for 0.73 release. 2019-09-22 10:12:29 +01:00
LICENCE It is, once again, a new year. 2020-02-09 08:19:21 +00:00
README Remove Makefile.bor. 2017-09-13 19:26:28 +01:00
Recipe Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
agentf.c Make lots of 'int' length fields into size_t. 2019-02-06 21:46:10 +00:00
aqsync.c Build outgoing SSH agent requests in a strbuf. 2018-05-25 14:36:16 +01:00
be_all.c Name vtable structure types more consistently. 2018-10-06 07:28:51 +01:00
be_all_s.c Name vtable structure types more consistently. 2018-10-06 07:28:51 +01:00
be_misc.c log_proxy_stderr: limit the length of Event Log lines. 2019-03-02 06:54:17 +00:00
be_none.c Name vtable structure types more consistently. 2018-10-06 07:28:51 +01:00
be_nos_s.c Label random-noise sources with an enum of ids. 2019-01-23 22:36:17 +00:00
be_nossh.c Label random-noise sources with an enum of ids. 2019-01-23 22:36:17 +00:00
be_ssh.c Name vtable structure types more consistently. 2018-10-06 07:28:51 +01:00
callback.c Convert a lot of 'int' variables to 'bool'. 2018-11-03 13:45:00 +00:00
cgtest.c cmdgen: rescue test suite from bit rot. 2016-03-30 08:34:14 +01:00
cmdgen.c cgtest: add missing \n in an error message. 2020-02-09 08:51:37 +00:00
cmdline.c Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
conf.c Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
config.c Fix assorted minor memory leaks. 2020-06-21 16:39:47 +01:00
configure.ac Counterbodge a bodgy warning from 'aclocal'. 2019-03-26 21:19:26 +00:00
cproxy.c Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
defs.h New wrapper macro for printf("%zu"), for old VS compat. 2020-02-09 08:51:37 +00:00
dialog.c Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
dialog.h Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
ecc.c Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
ecc.h ecc.[ch]: add elliptic-curve point_copy_into functions. 2019-02-09 17:52:25 +00:00
errsock.c Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
fuzzterm.c fuzzterm.c: fix prototypes of stub dlg functions. 2020-06-14 15:49:36 +01:00
import.c Fix assorted minor memory leaks. 2020-06-21 16:39:47 +01:00
ldisc.c Remove assertion that len != 0 in ldisc_send. 2020-06-14 15:49:36 +01:00
ldisc.h New array-growing macros: sgrowarray and sgrowarrayn. 2019-02-28 20:15:38 +00:00
licence.pl Autogenerate licence text in doc subdir from LICENCE. 2015-12-22 13:33:42 +00:00
logging.c New wrapper macro for printf("%zu"), for old VS compat. 2020-02-09 08:51:37 +00:00
mainchan.c Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
marshal.c Add BinarySource_REWIND_TO. 2020-02-09 08:21:21 +00:00
marshal.h Add BinarySource_REWIND_TO. 2020-02-09 08:21:21 +00:00
memory.c Fix undefined behaviour in safegrowarray. 2020-02-09 08:51:37 +00:00
minibidi.c Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
misc.c Fix format string mistakes revealed by new checking. 2020-02-09 08:51:37 +00:00
misc.h Greatly improve printf format-string checking. 2020-02-09 08:51:37 +00:00
miscucs.c New centralised helper function dup_mb_to_wc(). 2015-07-27 20:06:02 +01:00
mkauto.sh Move the Unix configure script up to the top level. 2014-02-22 18:01:32 +00:00
mkfiles.pl Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
mksrcarc.sh Remove all trace of the Inno Setup installer. 2019-03-18 21:53:45 +00:00
mkunxarc.sh Turn mkunxarc.sh back into an ordinary sh script. 2014-10-01 20:52:16 +00:00
mpint.c Fix mp_{eq,hs}_integer(tiny, huge). 2020-06-14 15:49:36 +01:00
mpint.h New mpint function mp_get_integer(). 2019-02-26 07:12:57 +00:00
mpint_i.h Fix technical-UB uses of the preprocessor. 2020-02-09 08:51:37 +00:00
network.h Greatly improve printf format-string checking. 2020-02-09 08:51:37 +00:00
nocmdline.c Replace assert(false) with an unreachable() macro. 2019-01-03 08:12:28 +00:00
nocproxy.c Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
nogss.c Rewrite gprefs() in settings.c so that its input mapping includes 2011-06-25 17:37:31 +00:00
noprint.c Make bufchain_prefix return a ptrlen. 2019-02-06 21:46:10 +00:00
noshare.c Get rid of lots of implicit pointer types. 2018-10-04 19:10:23 +01:00
noterm.c Make calling term_nopaste() a cross-platform feature. 2013-08-17 16:06:40 +00:00
notiming.c Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
nullplug.c Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
pageant.c Fix assorted minor memory leaks. 2020-06-21 16:39:47 +01:00
pageant.h Remove a lot of pointless 'struct' keywords. 2019-01-04 08:04:39 +00:00
pgssapi.c Fix a missing } in a GSSAPI-related comment. 2018-04-26 07:11:09 +01:00
pgssapi.h Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
pinger.c Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
portfwd.c Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
pproxy.c Get rid of lots of implicit pointer types. 2018-10-04 19:10:23 +01:00
proxy.c Fix handling of string-typed address from SOCKS5 server. 2019-10-01 19:31:37 +01:00
proxy.h Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
pscp.c Fix a deadlock in SFTP upload. 2020-06-14 15:49:36 +01:00
psftp.c Fix minor memory leak in psftp batch mode. 2020-06-14 15:49:36 +01:00
psftp.h Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
psftpcommon.c Fall back to not sorting large dirs in pscp -ls or psftp 'ls'. 2019-07-10 20:47:09 +01:00
putty.h Add an option to disable the dynamic host key policy. 2020-06-21 16:39:47 +01:00
puttymem.h Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
puttyps.h Delete the old 'macosx' directory completely. 2016-03-25 09:06:03 +00:00
raw.c Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
release.pl Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
resource.h Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
rlogin.c Use strbuf to store results in prompts_t. 2020-02-09 08:51:37 +00:00
scpserver.c Greatly improve printf format-string checking. 2020-02-09 08:51:37 +00:00
sercfg.c Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
sesschan.c Fix assorted minor memory leaks. 2020-06-21 16:39:47 +01:00
sessprep.c sessprep: fix detection of unbracketed IPv6 literals. 2019-03-22 16:32:41 +00:00
settings.c Add an option to disable the dynamic host key policy. 2020-06-21 16:39:47 +01:00
sftp.c Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
sftp.h Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
sftpcommon.c Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
sftpserver.c Fix two accidental overwrites of 'flags'. 2020-02-09 08:51:37 +00:00
sign.sh Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
ssh.c Account for packet queues in ssh_sendbuffer(). 2020-02-09 08:51:37 +00:00
ssh.h Track the total size of every PacketQueue. 2020-02-09 08:51:37 +00:00
ssh1bpp.c Track the total size of every PacketQueue. 2020-02-09 08:51:37 +00:00
ssh1censor.c Add and use BinarySource_*INIT_PL. 2019-02-06 21:46:10 +00:00
ssh1connection-client.c Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
ssh1connection-server.c SSH-1: disable trust sigils after session starts. 2019-04-20 09:56:16 +01:00
ssh1connection.c Account for packet queues in ssh_sendbuffer(). 2020-02-09 08:51:37 +00:00
ssh1connection.h Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
ssh1login-server.c Uppity: option to always send PK_OK / RSA1 challenge. 2020-06-21 16:39:47 +01:00
ssh1login.c Rework parsing of agent key list. 2020-06-21 16:39:47 +01:00
ssh2bpp-bare.c Track the total size of every PacketQueue. 2020-02-09 08:51:37 +00:00
ssh2bpp.c Track the total size of every PacketQueue. 2020-02-09 08:51:37 +00:00
ssh2censor.c Add and use BinarySource_*INIT_PL. 2019-02-06 21:46:10 +00:00
ssh2connection-client.c Fix null-dereference in ssh2_channel_response. 2020-06-14 15:49:36 +01:00
ssh2connection-server.c Pass SshServerConfig through to sesschan.c. 2019-03-31 10:35:10 +01:00
ssh2connection.c Account for packet queues in ssh_sendbuffer(). 2020-02-09 08:51:37 +00:00
ssh2connection.h Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
ssh2kex-client.c GSS kex: remove spurious no-op assignment. 2019-05-05 10:25:01 +01:00
ssh2kex-server.c New functions to shrink a strbuf. 2020-02-09 08:51:37 +00:00
ssh2transhk.c Add missing del234 in ssh_transient_hostkey_cache_add. 2019-06-15 21:37:36 +01:00
ssh2transport.c Add an option to disable the dynamic host key policy. 2020-06-21 16:39:47 +01:00
ssh2transport.h Uppity: option to use a pregenerated key for RSA kex. 2019-03-31 21:08:55 +01:00
ssh2userauth-server.c Uppity: option to always send PK_OK / RSA1 challenge. 2020-06-21 16:39:47 +01:00
ssh2userauth.c Rework parsing of agent key list. 2020-06-21 16:39:47 +01:00
sshaes.c Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
ssharcf.c Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
sshauxcrypt.c Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
sshbcrypt.c Access all hashes and MACs through the standard API. 2019-01-20 17:09:24 +00:00
sshblowf.c Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
sshblowf.h Turn SSH-2 ciphers into a classoid. 2018-09-19 23:08:07 +01:00
sshbpp.h Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
sshccp.c Turn ssh2_mac's text_name field into a method. 2019-01-20 17:09:24 +00:00
sshchan.h Remove spurious 'return' in void method wrappers. 2019-04-06 10:12:31 +01:00
sshcommon.c Account for packet queues in ssh_sendbuffer(). 2020-02-09 08:51:37 +00:00
sshcr.h Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
sshcrc.c Rewrite CRC implementation to be constant-time. 2019-01-16 06:22:49 +00:00
sshcrcda.c Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
sshdes.c Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
sshdh.c Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
sshdss.c Fix assorted minor memory leaks. 2020-06-21 16:39:47 +01:00
sshdssg.c Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
sshecc.c PuTTYgen: permit and prefer 255 as bit count for ed25519. 2020-02-09 08:51:37 +00:00
sshecdsag.c Complete rewrite of PuTTY's bignum library. 2018-12-31 14:54:59 +00:00
sshgss.h Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
sshgssc.c Make dupcat() into a variadic macro. 2019-10-14 19:42:37 +01:00
sshgssc.h Support GSS key exchange, for Kerberos 5 only. 2018-04-26 07:21:16 +01:00
sshhmac.c Fix text name of hmac-sha1-96-buggy. 2020-02-09 08:51:37 +00:00
sshmac.c sshmac.c: remove excessive return statement 2019-01-02 22:50:08 +00:00
sshmd5.c Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
sshnogss.c Post-release destabilisation! Completely remove the struct type 2011-07-14 18:52:21 +00:00
sshppl.h Account for packet queues in ssh_sendbuffer(). 2020-02-09 08:51:37 +00:00
sshprime.c Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
sshprng.c New wrapper macro for printf("%zu"), for old VS compat. 2020-02-09 08:51:37 +00:00
sshpubk.c New wrapper macro for printf("%zu"), for old VS compat. 2020-02-09 08:51:37 +00:00
sshrand.c Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
sshrsa.c New wrapper macro for printf("%zu"), for old VS compat. 2020-02-09 08:51:37 +00:00
sshrsag.c Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
sshserver.c sshserver.c: fix prototype of mainchan_new. 2020-06-14 15:49:36 +01:00
sshserver.h Uppity: option to always send PK_OK / RSA1 challenge. 2020-06-21 16:39:47 +01:00
sshsh256.c Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
sshsh512.c Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
sshsha.c Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
sshshare.c Fix format string mistakes revealed by new checking. 2020-02-09 08:51:37 +00:00
sshsignals.h New system for handling SSH signals. 2018-10-21 10:02:10 +01:00
sshttymodes.h New system for handling SSH terminal modes. 2018-10-21 10:02:10 +01:00
sshverstring.c New functions to shrink a strbuf. 2020-02-09 08:51:37 +00:00
sshzlib.c Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
storage.h Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
stripctrl.c stripctrl: clean up precarious handling of 'width'. 2019-07-23 19:58:48 +01:00
telnet.c New functions to shrink a strbuf. 2020-02-09 08:51:37 +00:00
terminal.c Remove obsolete checks for ldisc_send with len == 0. 2020-06-14 15:49:36 +01:00
terminal.h Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
testback.c Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
testcrypt.c Fix technical-UB uses of the preprocessor. 2020-02-09 08:51:37 +00:00
testcrypt.h Fix text name of hmac-sha1-96-buggy. 2020-02-09 08:51:37 +00:00
testsc.c New wrapper macro for printf("%zu"), for old VS compat. 2020-02-09 08:51:37 +00:00
testzlib.c Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
time.c Comment explaining location in top-level directory. 2005-02-07 15:23:45 +00:00
timing.c Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
tree234.c Greatly improve printf format-string checking. 2020-02-09 08:51:37 +00:00
tree234.h Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
utils.c Introduce and use strbuf_chomp. 2020-02-09 08:51:37 +00:00
version.c Show the git commit hash in local dev builds too. 2017-01-21 14:57:31 +00:00
version.h Server prep: pass "implementation name" to ssh_verstring_new. 2018-10-21 10:02:10 +01:00
wcwidth.c Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
wildcard.c Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
x11fwd.c Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00

README

This is the README for the source archive of PuTTY, a free Windows
and Unix Telnet and SSH client.

If you want to rebuild PuTTY from source, we provide a variety of
Makefiles and equivalents. (If you have fetched the source from
Git, you'll have to generate the Makefiles yourself -- see
below.)

There are various compile-time directives that you can use to
disable or modify certain features; it may be necessary to do this
in some environments. They are documented in `Recipe', and in
comments in many of the generated Makefiles.

For building on Windows:

 - windows/Makefile.vc is for command-line builds on MS Visual C++
   systems. Change into the `windows' subdirectory and type `nmake
   -f Makefile.vc' to build all the PuTTY binaries.

   As of 2017, we successfully compile PuTTY with both Visual Studio
   7 (2003) and Visual Studio 14 (2015), so our guess is that it will
   probably build with versions in between those as well.

   (The binaries from Visual Studio 14 are only compatible with
   Windows XP and up. Binaries from Visual Studio 7 ought to work
   with anything from Windows 95 onward.)

 - Inside the windows/MSVC subdirectory are MS Visual Studio project
   files for doing GUI-based builds of the various PuTTY utilities.
   These have been tested on Visual Studio 7 and 10.

   You should be able to build each PuTTY utility by loading the
   corresponding .dsp file in Visual Studio. For example,
   MSVC/putty/putty.dsp builds PuTTY itself, MSVC/plink/plink.dsp
   builds Plink, and so on.

 - windows/Makefile.mgw is for MinGW / Cygwin installations. Type
   `make -f Makefile.mgw' while in the `windows' subdirectory to
   build all the PuTTY binaries.

   MinGW and friends can lag behind other toolchains in their support
   for the Windows API. Compile-time levers are provided to exclude
   some features; the defaults are set appropriately for the
   'mingw-w64' cross-compiler provided with Ubuntu 14.04. If you are
   using an older toolchain, you may need to exclude more features;
   alternatively, you may find that upgrading to a recent version of
   the 'w32api' package helps.

 - windows/Makefile.lcc is for lcc-win32. Type `make -f
   Makefile.lcc' while in the `windows' subdirectory. (You will
   probably need to specify COMPAT=-DNO_MULTIMON.)

 - Inside the windows/DEVCPP subdirectory are Dev-C++ project
   files for doing GUI-based builds of the various PuTTY utilities.

The PuTTY team actively use Makefile.vc (with VC7/10) and Makefile.mgw
(with mingw32), so we'll probably notice problems with those
toolchains fairly quickly. Please report any problems with the other
toolchains mentioned above.

For building on Unix:

 - unix/configure is for Unix and GTK. If you don't have GTK, you
   should still be able to build the command-line utilities (PSCP,
   PSFTP, Plink, PuTTYgen) using this script. To use it, change into
   the `unix' subdirectory, run `./configure' and then `make'. Or you
   can do the same in the top-level directory (we provide a little
   wrapper that invokes configure one level down), which is more like
   a normal Unix source archive but doesn't do so well at keeping the
   per-platform stuff in each platform's subdirectory; it's up to you.

 - unix/Makefile.gtk and unix/Makefile.ux are for non-autoconfigured
   builds. These makefiles expect you to change into the `unix'
   subdirectory, then run `make -f Makefile.gtk' or `make -f
   Makefile.ux' respectively. Makefile.gtk builds all the programs but
   relies on Gtk, whereas Makefile.ux builds only the command-line
   utilities and has no Gtk dependence.

 - For the graphical utilities, any of Gtk+-1.2, Gtk+-2.0, and Gtk+-3.0
   should be supported. If you have more than one installed, you can
   manually specify which one you want by giving the option
   '--with-gtk=N' to the configure script where N is 1, 2, or 3.
   (The default is the newest available, of course.) In the absence
   of any Gtk version, the configure script will automatically
   construct a Makefile which builds only the command-line utilities;
   you can manually create this condition by giving configure the
   option '--without-gtk'.

 - pterm would like to be setuid or setgid, as appropriate, to permit
   it to write records of user logins to /var/run/utmp and
   /var/log/wtmp. (Of course it will not use this privilege for
   anything else, and in particular it will drop all privileges before
   starting up complex subsystems like GTK.) By default the makefile
   will not attempt to add privileges to the pterm executable at 'make
   install' time, but you can ask it to do so by running configure
   with the option '--enable-setuid=USER' or '--enable-setgid=GROUP'.

 - The Unix Makefiles have an `install' target. Note that by default
   it tries to install `man' pages; if you have fetched the source via
   Git then you will need to have built these using Halibut
   first - see below.

 - It's also possible to build the Windows version of PuTTY to run
   on Unix by using Winelib.  To do this, change to the `windows'
   directory and run `make -f Makefile.mgw CC=winegcc RC=wrc'.

All of the Makefiles are generated automatically from the file
`Recipe' by the Perl script `mkfiles.pl' (except for the Unix one,
which is generated by the `configure' script; mkfiles.pl only
generates the input to automake). Additions and corrections to Recipe,
mkfiles.pl and/or configure.ac are much more useful than additions and
corrections to the actual Makefiles, Makefile.am or Makefile.in.

The Unix `configure' script and its various requirements are generated
by the shell script `mkauto.sh', which requires GNU Autoconf, GNU
Automake, and Gtk; if you've got the source from Git rather
than using one of our source snapshots, you'll need to run this
yourself. The input file to Automake is generated by mkfiles.pl along
with all the rest of the makefiles, so you will need to run mkfiles.pl
and then mkauto.sh.

Documentation (in various formats including Windows Help and Unix
`man' pages) is built from the Halibut (`.but') files in the `doc'
subdirectory using `doc/Makefile'. If you aren't using one of our
source snapshots, you'll need to do this yourself. Halibut can be
found at <https://www.chiark.greenend.org.uk/~sgtatham/halibut/>.

The PuTTY home web site is

    https://www.chiark.greenend.org.uk/~sgtatham/putty/

If you want to send bug reports or feature requests, please read the
Feedback section of the web site before doing so. Sending one-line
reports saying `it doesn't work' will waste your time as much as
ours.

See the file LICENCE for the licence conditions.