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Simon Tatham f3b2c0f209 Remove white dialog background in MSI user interface.
We received a report that if you enable Windows 10's high-contrast
mode, the text in PuTTY's installer UI becomes invisible, because it's
displayed in the system default foreground colour against a background
of the white right-hand side of our 'msidialog.bmp' image. That's fine
when the system default fg is black, but high-contrast mode flips it
to white, and now you have white on white text, oops.

Some research in the WiX bug tracker suggests that in Windows 10 you
don't actually have to use BMP files for your installer images any
more: you can use PNG, and PNGs can be transparent. However, someone
else reported that that only works in up-to-date versions of Windows.

And in fact there's no need to go that far. A more elegant answer is
to simply not cover the whole dialog box with our background image in
the first place. I've reduced the size of the background image so that
it _only_ contains the pretty picture on the left-hand side, and omits
the big white rectangle that used to sit under the text. So now the
RHS of the dialog is not covered by any image at all, which has the
same effect as it being covered with a transparent image, except that
it doesn't require transparency support from msiexec. Either way, the
background for the text ends up being the system's default dialog-box
background, in the absence of any images or controls placed on top of
it - so when the high-contrast mode is enabled, it flips to black at
the same time as the text flips to white, and everything works as it
should.

The slight snag is that the pre-cooked WiX UI dialog specifications
let you override the background image itself, but not the Width and
Height fields in the control specifications that refer to them. So if
you just try to drop in a narrow image in the most obvious way, it
gets stretched across the whole window.

But that's not a show-stopper, because we're not 100% dependent on
getting WiX to produce exactly the right output. We already have the
technology to postprocess the MSI _after_ it comes out of WiX: we're
using it to fiddle the target-platform field for the Windows on Arm
installers. So all I had to do was to turn msiplatform.py into a more
general msifixup.py, add a second option to change the width of the
dialog background image, and run it on the x86 installers as well as
the Arm ones.
2020-02-11 19:12:01 +00:00
charset Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
contrib Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
doc Discourage unnecessary use of Secure Contact key. 2019-11-22 09:21:43 +00:00
icons Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
test sshprng.c: remove pointless pending_output buffer. 2020-01-26 16:37:48 +00:00
unix Unix Pageant: --test-sign client option. 2020-02-09 22:02:54 +00:00
windows Remove white dialog background in MSI user interface. 2020-02-11 19:12:01 +00:00
.gitignore New utility object, StripCtrlChars. 2019-02-20 07:27:22 +00:00
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_s.c Name vtable structure types more consistently. 2018-10-06 07:28:51 +01:00
be_all.c Name vtable structure types more consistently. 2018-10-06 07:28:51 +01:00
be_misc.c Log when a network connection succeeds. 2020-02-07 19:18:50 +00:00
be_none.c Name vtable structure types more consistently. 2018-10-06 07:28:51 +01:00
be_nos_s.c Centralise 'no random numbers' stubs into norand.c. 2020-02-07 19:17:19 +00:00
be_nossh.c Centralise 'no random numbers' stubs into norand.c. 2020-02-07 19:17:19 +00:00
be_ssh.c Name vtable structure types more consistently. 2018-10-06 07:28:51 +01:00
Buildscr Remove white dialog background in MSI user interface. 2020-02-11 19:12:01 +00:00
Buildscr.cv Turn off hardware AES for the Coverity build. 2019-05-05 08:38:37 +01:00
callback.c Add lots of missing 'static' keywords. 2020-01-29 06:44:18 +00:00
cgtest.c Move the code for cgtest into cgtest.c. 2020-02-02 14:16:52 +00:00
CHECKLST.txt Release checklist updates post-0.72. 2019-07-20 08:13:07 +01:00
clicons.c Remove FLAG_VERBOSE. 2020-01-30 06:40:21 +00:00
cmdgen.c Move the code for cgtest into cgtest.c. 2020-02-02 14:16:52 +00:00
cmdline.c Move the restricted_acl flag into winsecur.c. 2020-02-02 10:02:10 +00:00
conf.c Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
config.c Make dupcat() into a variadic macro. 2019-10-14 19:42:37 +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 Expose lf_load_keyfile outside sshpubk.c. 2020-02-02 14:01:03 +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 winnpc.c: add low-level connect_to_named_pipe() function. 2020-01-04 13:52:22 +00:00
fuzzterm.c Remove the GLOBAL macro itself. 2020-02-02 10:02:10 +00:00
import.c Allow import.c to read from a BinarySource. 2020-02-02 14:01:34 +00:00
LATEST.VER Update version number for 0.73 release. 2019-09-22 10:12:29 +01:00
ldisc.c Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
ldisc.h New array-growing macros: sgrowarray and sgrowarrayn. 2019-02-28 20:15:38 +00:00
LICENCE It is, once again, a new year. 2020-01-01 16:54:24 +00:00
licence.pl Autogenerate licence text in doc subdir from LICENCE. 2015-12-22 13:33:42 +00:00
logging.c Assorted benign warning fixes. 2020-01-29 06:44:18 +00:00
mainchan.c Assorted benign warning fixes. 2020-01-29 06:44:18 +00:00
marshal.c Fix a gcc compile failure due to -Werror. 2020-01-10 19:27:22 +00:00
marshal.h Add some more marshalling functions, for file parsing. 2020-01-09 19:57:35 +00:00
memory.c Fix undefined behaviour in safegrowarray. 2020-01-21 20:23:02 +00:00
minibidi.c Add lots of missing 'static' keywords. 2020-01-29 06:44:18 +00:00
misc.c Remove FLAG_INTERACTIVE. 2020-01-30 06:40:21 +00:00
misc.h Expose the rest of LoadedFile in headers. 2020-02-09 22:02:23 +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 Enable -Werror on clang-cl builds. 2020-01-29 06:44:18 +00:00
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_i.h Fix technical-UB uses of the preprocessor. 2020-01-29 06:44:17 +00:00
mpint.c Assorted benign warning fixes. 2020-01-29 06:44:18 +00:00
mpint.h New mpint function mp_get_integer(). 2019-02-26 07:12:57 +00:00
network.h Log when a network connection succeeds. 2020-02-07 19:18:50 +00:00
nocmdline.c Make cmdline_tooltype a const int. 2020-01-30 06:40:22 +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
norand.c Centralise 'no random numbers' stubs into norand.c. 2020-02-07 19:17:19 +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 Log when a network connection succeeds. 2020-02-07 19:18:50 +00:00
pageant.c Pageant: fix misuse of the blocked_requests queue. 2020-02-11 19:11:21 +00:00
pageant.h Unix Pageant: --test-sign client option. 2020-02-09 22:02:54 +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 Make the plug_log type code into an enum. 2020-02-07 19:17:45 +00:00
pproxy.c Get rid of lots of implicit pointer types. 2018-10-04 19:10:23 +01:00
proxy.c Make the plug_log type code into an enum. 2020-02-07 19:17:45 +00:00
proxy.h Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
pscp.c Make more file-scope variables static. 2020-02-02 10:02:10 +00:00
psftp.c Fix minor memory leak in psftp batch mode. 2020-02-05 19:45:27 +00:00
psftp.h Remove FLAG_VERBOSE. 2020-01-30 06:40:21 +00:00
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 Move default_protocol and default_port into settings.c. 2020-02-02 10:02:10 +00:00
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 Make the plug_log type code into an enum. 2020-02-07 19:17:45 +00:00
README Remove Makefile.bor. 2017-09-13 19:26:28 +01:00
Recipe Move half of sshcommon.c out into sshutils.c. 2020-02-07 19:19:27 +00:00
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 Make the plug_log type code into an enum. 2020-02-07 19:17:45 +00:00
scpserver.c Greatly improve printf format-string checking. 2020-01-26 16:35:04 +00:00
sercfg.c Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
sesschan.c Make the plug_log type code into an enum. 2020-02-07 19:17:45 +00:00
sessprep.c sessprep: fix detection of unbracketed IPv6 literals. 2019-03-22 16:32:41 +00:00
settings.c Move default_protocol and default_port into settings.c. 2020-02-02 10:02:10 +00:00
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'. 2020-01-30 06:40:21 +00:00
sign.sh Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
ssh1bpp.c Track the total size of every PacketQueue. 2020-02-05 19:32:22 +00:00
ssh1censor.c Add and use BinarySource_*INIT_PL. 2019-02-06 21:46:10 +00:00
ssh1connection-client.c Merge the two low-level portfwd setup systems. 2020-01-27 19:40:50 +00:00
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(). 2020-02-05 19:34:29 +00:00
ssh1connection.h Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
ssh1login-server.c Account for packet queues in ssh_sendbuffer(). 2020-02-05 19:34:29 +00:00
ssh1login.c Account for packet queues in ssh_sendbuffer(). 2020-02-05 19:34:29 +00:00
ssh2bpp-bare.c Track the total size of every PacketQueue. 2020-02-05 19:32:22 +00:00
ssh2bpp.c Track the total size of every PacketQueue. 2020-02-05 19:32:22 +00:00
ssh2censor.c Add and use BinarySource_*INIT_PL. 2019-02-06 21:46:10 +00:00
ssh2connection-client.c Merge the two low-level portfwd setup systems. 2020-01-27 19:40:50 +00:00
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(). 2020-02-05 19:34:29 +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. 2020-01-21 20:24:04 +00:00
ssh2transhk.c Add missing del234 in ssh_transient_hostkey_cache_add. 2019-06-15 21:37:36 +01:00
ssh2transport.c Account for packet queues in ssh_sendbuffer(). 2020-02-05 19:34:29 +00:00
ssh2transport.h Uppity: option to use a pregenerated key for RSA kex. 2019-03-31 21:08:55 +01:00
ssh2userauth-server.c Account for packet queues in ssh_sendbuffer(). 2020-02-05 19:34:29 +00:00
ssh2userauth.c Account for packet queues in ssh_sendbuffer(). 2020-02-05 19:34:29 +00:00
ssh.c Make the plug_log type code into an enum. 2020-02-07 19:17:45 +00:00
ssh.h Pageant: handle agent extension messages more correctly. 2020-02-10 20:45:31 +00:00
sshaes.c Add lots of missing 'static' keywords. 2020-01-29 06:44:18 +00:00
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 Move half of sshcommon.c out into sshutils.c. 2020-02-07 19:19:27 +00:00
sshcr.h Assorted benign warning fixes. 2020-01-29 06:44:18 +00:00
sshcrc.c Rewrite CRC implementation to be constant-time. 2019-01-16 06:22:49 +00:00
sshcrcda.c Add lots of missing 'static' keywords. 2020-01-29 06:44:18 +00:00
sshdes.c Add lots of missing 'static' keywords. 2020-01-29 06:44:18 +00:00
sshdh.c Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
sshdss.c Adopt the new hash API functions where they're useful. 2019-12-15 20:23:06 +00:00
sshdssg.c Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
sshecc.c Add lots of missing 'static' keywords. 2020-01-29 06:44:18 +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 Add lots of missing 'static' keywords. 2020-01-29 06:44:18 +00:00
sshmac.c sshmac.c: remove excessive return statement 2019-01-02 22:50:08 +00:00
sshmd5.c Add lots of missing 'static' keywords. 2020-01-29 06:44:18 +00:00
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(). 2020-02-05 19:34:29 +00:00
sshprime.c Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
sshprng.c sshprng.c: remove pointless pending_output buffer. 2020-01-26 16:37:48 +00:00
sshpubk.c Expose the rest of LoadedFile in headers. 2020-02-09 22:02:23 +00:00
sshrand.c Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
sshrsa.c Add lots of missing 'static' keywords. 2020-01-29 06:44:18 +00:00
sshrsag.c Expose key generation functions in testcrypt. 2020-01-09 19:57:35 +00:00
sshserver.c Make the plug_log type code into an enum. 2020-02-07 19:17:45 +00:00
sshserver.h Uppity: option to disallow SSH-1 compression. 2019-04-01 20:17:44 +01:00
sshsh256.c Refactor the ssh_hash vtable. (NFC) 2019-12-15 20:23:06 +00:00
sshsh512.c Assorted benign warning fixes. 2020-01-29 06:44:18 +00:00
sshsha.c Refactor the ssh_hash vtable. (NFC) 2019-12-15 20:23:06 +00:00
sshshare.c Fix format string mistakes revealed by new checking. 2020-01-26 16:35:04 +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
sshutils.c Move half of sshcommon.c out into sshutils.c. 2020-02-07 19:19:27 +00:00
sshverstring.c New functions to shrink a strbuf. 2020-01-21 20:24:04 +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 Make the plug_log type code into an enum. 2020-02-07 19:17:45 +00:00
terminal.c Add lots of missing 'static' keywords. 2020-01-29 06:44:18 +00:00
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 Add lots of missing 'static' keywords. 2020-01-29 06:44:18 +00:00
testcrypt.h Fix text name of hmac-sha1-96-buggy. 2020-01-26 16:46:16 +00:00
testsc.c New wrapper macro for printf("%zu"), for old VS compat. 2020-01-26 16:36:01 +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. 2020-01-26 16:35:04 +00:00
tree234.h Whitespace rationalisation of entire code base. 2019-09-08 20:29:21 +01:00
utils.c Allow import.c to read from a BinarySource. 2020-02-02 14:01:34 +00:00
version.c Add some missing #includes. 2020-01-29 06:44:18 +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 Make the plug_log type code into an enum. 2020-02-07 19:17:45 +00:00

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.