2019-03-27  Peter Spjuth  <peter.spjuth@gmail.com>
	Always allow post processing for small blocks.

2018-10-07  Peter Spjuth  <peter.spjuth@gmail.com>
	Bumped revision to 0.4.1
	Working compareStreams command.

2018-10-06  Peter Spjuth  <peter.spjuth@gmail.com>
	Started on compareStreams command.

2017-12-02  Peter Spjuth  <peter.spjuth@gmail.com>
	Bumped revision to 0.4.0
	Require Tcl 8.6.

2017-12-02  Peter Spjuth  <peter.spjuth@gmail.com>
	Bumped revision to 0.3.11
	Changed default pivot to 10.

2012-07-10  Peter Spjuth  <peter.spjuth@gmail.com>
	Lots of restructuring to allow LcsCore to work recursively.
	Specially, all lines are included in V/E/P vectors even if
	a range is set.

2012-07-02  Peter Spjuth  <peter.spjuth@gmail.com>
	Handle alignment within postprocessing of forbidden matches.

2012-06-26  Peter Spjuth  <peter.spjuth@gmail.com>
	Bug-fix in postprocessing of forbidden lines.

2012-06-26  Peter Spjuth  <peter.spjuth@gmail.com>
	Bumped revision to 0.3.6

The following files contain current revision and needs to be changed
when bumping revisions:
configure.ac     (AC_INIT)
doc/diffutil.man (two places)
tcl/diffutil.tcl (package provide)


Then rerun
autoconf
configure
make clean
make
make vfs

#! /bin/sh
# Guess values for system-dependent variables and create Makefiles.
# Generated by GNU Autoconf 2.63 for DiffUtil 0.4.1.
#
# Copyright (C) 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001,
# 2002, 2003, 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
# This configure script is free software; the Free Software Foundation
# gives unlimited permission to copy, distribute and modify it.
## --------------------- ##
## M4sh Initialization.  ##

MFLAGS=
MAKEFLAGS=
SHELL=${CONFIG_SHELL-/bin/sh}

# Identity of this package.
PACKAGE_NAME='DiffUtil'
PACKAGE_TARNAME='diffutil'
PACKAGE_VERSION='0.4.1'
PACKAGE_STRING='DiffUtil 0.4.1'
PACKAGE_BUGREPORT=''

# Factoring default headers for most tests.
ac_includes_default="\
#include <stdio.h>
#ifdef HAVE_SYS_TYPES_H
# include <sys/types.h>

#
# Report the --help message.
#
if test "$ac_init_help" = "long"; then
  # Omit some internal or obsolete options to make the list less imposing.
  # This message is too long to be a string in the A/UX 3.1 sh.
  cat <<_ACEOF
\`configure' configures DiffUtil 0.4.1 to adapt to many kinds of systems.

Usage: $0 [OPTION]... [VAR=VALUE]...

To assign environment variables (e.g., CC, CFLAGS...), specify them as
VAR=VALUE.  See below for descriptions of some of the useful variables.

Defaults for the options are specified in brackets.

  cat <<\_ACEOF
_ACEOF
fi

if test -n "$ac_init_help"; then
  case $ac_init_help in
     short | recursive ) echo "Configuration of DiffUtil 0.4.1:";;
   esac
  cat <<\_ACEOF

Optional Features:
  --disable-option-checking  ignore unrecognized --enable/--with options
  --disable-FEATURE       do not include FEATURE (same as --enable-FEATURE=no)
  --enable-FEATURE[=ARG]  include FEATURE [ARG=yes]

    cd "$ac_pwd" || { ac_status=$?; break; }
  done
fi

test -n "$ac_init_help" && exit $ac_status
if $ac_init_version; then
  cat <<\_ACEOF
DiffUtil configure 0.4.1
generated by GNU Autoconf 2.63

Copyright (C) 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001,
2002, 2003, 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
This configure script is free software; the Free Software Foundation
gives unlimited permission to copy, distribute and modify it.
_ACEOF
  exit
fi
cat >config.log <<_ACEOF
This file contains any messages produced by compilers while
running configure, to aid debugging if configure makes a mistake.

It was created by DiffUtil $as_me 0.4.1, which was
generated by GNU Autoconf 2.63.  Invocation command line was

  $ $0 $@

_ACEOF
exec 5>>config.log
{

exec 6>&1

# Save the log message, to keep $[0] and so on meaningful, and to
# report actual input values of CONFIG_FILES etc. instead of their
# values after options handling.
ac_log="
This file was extended by DiffUtil $as_me 0.4.1, which was
generated by GNU Autoconf 2.63.  Invocation command line was

  CONFIG_FILES    = $CONFIG_FILES
  CONFIG_HEADERS  = $CONFIG_HEADERS
  CONFIG_LINKS    = $CONFIG_LINKS
  CONFIG_COMMANDS = $CONFIG_COMMANDS
  $ $0 $@

$config_files

Report bugs to <bug-autoconf@gnu.org>."

_ACEOF
cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
ac_cs_version="\\
DiffUtil config.status 0.4.1
configured by $0, generated by GNU Autoconf 2.63,
  with options \\"`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`\\"

Copyright (C) 2008 Free Software Foundation, Inc.
This config.status script is free software; the Free Software Foundation
gives unlimited permission to copy, distribute and modify it."

# This initializes the environment with PACKAGE_NAME and PACKAGE_VERSION
# set as provided.  These will also be added as -D defs in your Makefile
# so you can encode the package version directly into the source files.
# This will also define a special symbol for Windows (BUILD_<PACKAGE_NAME>
# so that we create the export library with the dll.
#-----------------------------------------------------------------------

AC_INIT([DiffUtil], [0.4.1])

#--------------------------------------------------------------------
# Call TEA_INIT as the first TEA_ macro to set up initial vars.
# This will define a ${TEA_PLATFORM} variable == "unix" or "windows"
# as well as PKG_LIB_FILE and PKG_STUB_LIB_FILE.
#--------------------------------------------------------------------

<!DOCTYPE html><html><head>
<title>DiffUtil - Comparision Utilities</title>
<style type="text/css"><!--
    HTML {
	background: 	#FFFFFF;
	color: 		black;
    }
    BODY {

	margin-top: 	1em;
	font-family:	sans-serif;
	font-size:	large;
	color:		#005A9C;
	background: 	transparent;
	text-align:		left;
    }
    H1.doctools_title {
	text-align: center;
    }
    UL,OL {
	margin-right: 0em;
	margin-top: 3pt;
	margin-bottom: 3pt;
    }
    UL LI {
	list-style: disc;
    }
    OL LI {
	list-style: decimal;
    }
    DT {
	padding-top: 	1ex;
    }
    UL.doctools_toc,UL.doctools_toc UL, UL.doctools_toc UL UL {
	font:		normal 12pt/14pt sans-serif;
	list-style:	none;
    }
    LI.doctools_section, LI.doctools_subsection {
	list-style: 	none;
	margin-left: 	0em;
	text-indent:	0em;
	padding: 	0em;
    }
    PRE {
	display: 	block;
	font-family:	monospace;
	white-space:	pre;
	margin:		0%;
	padding-top:	0.5ex;
	padding-bottom:	0.5ex;
	padding-left:	1ex;
	padding-right:	1ex;
	width:		100%;
    }
    PRE.doctools_example {
	color: 		black;
	background: 	#f5dcb3;
	border:		1px solid black;
    }
    UL.doctools_requirements LI, UL.doctools_syntax LI {
	list-style: 	none;
	margin-left: 	0em;
	text-indent:	0em;
	padding:	0em;
    }
    DIV.doctools_synopsis {
	color: 		black;
	background: 	#80ffff;
	border:		1px solid black;
	font-family:	serif;
	margin-top: 	1em;
	margin-bottom: 	1em;
    }
    UL.doctools_syntax {
	margin-top: 	1em;
	border-top:	1px solid black;
    }
    UL.doctools_requirements {
	margin-bottom: 	1em;
	border-bottom:	1px solid black;
    }
--></style>
</head>
<!-- Generated from file 'diffutil.man' by tcllib/doctools with format 'html'
   -->
<!-- Copyright &amp;copy; 2010, Peter Spjuth
   -->
<!-- DiffUtil.n
   -->
<body><div class="doctools">
<h1 class="doctools_title">DiffUtil(n) 0.4.1 diffutil &quot;Comparision Utilities&quot;</h1>
<div id="name" class="doctools_section"><h2><a name="name">Name</a></h2>
<p>DiffUtil - Compare Stuff</p>
</div>
<div id="toc" class="doctools_section"><h2><a name="toc">Table Of Contents</a></h2>
<ul class="doctools_toc">
<li class="doctools_section"><a href="#toc">Table Of Contents</a></li>
<li class="doctools_section"><a href="#synopsis">Synopsis</a></li>
<li class="doctools_section"><a href="#section1">Description</a></li>
<li class="doctools_section"><a href="#section2">COMMANDS</a></li>
<li class="doctools_section"><a href="#section3">EXAMPLES</a></li>
<li class="doctools_section"><a href="#keywords">Keywords</a></li>
<li class="doctools_section"><a href="#copyright">Copyright</a></li>
</ul>
</div>
<div id="synopsis" class="doctools_section"><h2><a name="synopsis">Synopsis</a></h2>
<div class="doctools_synopsis">
<ul class="doctools_requirements">
<li>package require <b class="pkgname">Tcl 8.6</b></li>
<li>package require <b class="pkgname">DiffUtil <span class="opt">?0.4.1?</span></b></li>
</ul>
<ul class="doctools_syntax">
<li><a href="#1"><b class="cmd">::DiffUtil::diffFiles</b> <span class="opt">?<i class="arg">options</i>?</span> <i class="arg">file1</i> <i class="arg">file2</i></a></li>
<li><a href="#2"><b class="cmd">::DiffUtil::diffLists</b> <span class="opt">?<i class="arg">options</i>?</span> <i class="arg">list1</i> <i class="arg">list2</i></a></li>
<li><a href="#3"><b class="cmd">::DiffUtil::compareFiles</b> <span class="opt">?<i class="arg">options</i>?</span> <i class="arg">file1</i> <i class="arg">file2</i></a></li>
<li><a href="#4"><b class="cmd">::DiffUtil::compareStreams</b> <span class="opt">?<i class="arg">options</i>?</span> <i class="arg">ch1</i> <i class="arg">ch2</i></a></li>
</ul>
</div>
</div>
<div id="section1" class="doctools_section"><h2><a name="section1">Description</a></h2>
<p>This package provides utilites for comparisons of strings, lists
and files.
The base comparison is a Longest Common Substring algorithm based
on J. W. Hunt and M. D. McIlroy, &quot;An algorithm for differential
file comparison,&quot; Comp. Sci. Tech. Rep. #41, Bell Telephone
Laboratories (1976). Available on the Web at the second
author's personal site: http://www.cs.dartmouth.edu/~doug/</p>
</div>
<div id="section2" class="doctools_section"><h2><a name="section2">COMMANDS</a></h2>
<dl class="doctools_definitions">
<dt><a name="1"><b class="cmd">::DiffUtil::diffFiles</b> <span class="opt">?<i class="arg">options</i>?</span> <i class="arg">file1</i> <i class="arg">file2</i></a></dt>
<dd><p>Compare two files line by line.
The return value depends on the <i class="arg">-result</i> option, see below.</p>
<dl class="doctools_options">
<dt><b class="option">-nocase</b></dt>
<dd><p>Ignore case.</p></dd>
<dt><b class="option">-i</b></dt>
<dd><p>Ignore case.</p></dd>
<dt><b class="option">-b</b></dt>
<dd><p>Ignore space changes. Any sequence of whitespace is treated as a single
space, except at beginning of line where it is completely ignored.</p></dd>

on each line.</p></dd>
<dt><b class="option">-regsubleft</b> <i class="arg">list</i></dt>
<dd><p>Like <i class="arg">-regsub</i> but only applied to the first file.</p></dd>
<dt><b class="option">-regsubright</b> <i class="arg">list</i></dt>
<dd><p>Like <i class="arg">-regsub</i> but only applied to the second file.</p></dd>
<dt><b class="option">-result</b> <i class="arg">style</i></dt>
<dd><p>Select result style. The default is <i class="arg">diff</i>.</p>
<dl class="doctools_definitions">
<dt><b class="const">diff</b></dt>
<dd><p>Returns a list of differences, each in a four element list.
{LineNumber1 NumberOfLines1 LineNumber2 NumberOfLines2}
The first line in a file is number 1.</p></dd>
<dt><b class="const">match</b></dt>
<dd><p>The return value is a list of two lists of equal length. The first
sublist is of line numbers in <i class="arg">file1</i>, and the second sublist is
of line numbers in <i class="arg">file2</i>.  Each corresponding pair of line numbers
corresponds to equal lines in the files.</p></dd>
</dl></dd>
<dt><b class="option">-encoding</b> <i class="arg">encoding</i></dt>
<dd><p>Apply encoding when reading files. This works as for <b class="cmd">fconfigure</b>.</p></dd>
<dt><b class="option">-translation</b> <i class="arg">value</i></dt>
<dd><p>Apply translation when reading files. This works as for <b class="cmd">fconfigure</b>.</p></dd>
<dt><b class="option">-gz</b></dt>
<dd><p>Apply gunzip decompression when reading files. Requires zlib.</p></dd>
</dl></dd>
<dt><a name="2"><b class="cmd">::DiffUtil::diffLists</b> <span class="opt">?<i class="arg">options</i>?</span> <i class="arg">list1</i> <i class="arg">list2</i></a></dt>
<dd><p>Compare two lists element by element.
The return value depends on the <i class="arg">-result</i> option, see below.</p>
<dl class="doctools_options">
<dt><b class="option">-nocase</b></dt>
<dd><p>Ignore case.</p></dd>
<dt><b class="option">-i</b></dt>
<dd><p>Ignore case.</p></dd>
<dt><b class="option">-b</b></dt>
<dd><p>Ignore space changes.</p></dd>
<dt><b class="option">-w</b></dt>
<dd><p>Ignore all spaces.</p></dd>
<dt><b class="option">-noempty</b></dt>
<dd><p>Ignore empty elements in initial compare step. I.e. empty elements are considered
not equal at first. Multiple equal elements give longer runtimes and by avoiding
the very common empty element, runtimes are improved. With <i class="arg">-b</i> or <i class="arg">-w</i>,
all-space elements are considered empty.
Empty elements that obviously matches are noted as equal in a post processing
step, but empty elements within change blocks will be reported as changes.</p></dd>
<dt><b class="option">-nodigit</b></dt>
<dd><p>Consider any sequence of digits equal.</p></dd>
<dt><b class="option">-result</b> <i class="arg">style</i></dt>
<dd><p>Select result style. The default is <i class="arg">diff</i>.</p>
<dl class="doctools_definitions">
<dt><b class="const">diff</b></dt>
<dd><p>Returns a list of differences, each in a four element list.
{ElementIndex1 NumberOfElements1 ElementIndex2 NumberOfElements2}</p></dd>
<dt><b class="const">match</b></dt>
<dd><p>The return value is a list of two lists of equal length. The first
sublist is of indices in <i class="arg">list1</i>, and the second sublist is
of indices in <i class="arg">list2</i>.  Each corresponding pair of indices
corresponds to equal elements in the sequences.</p></dd>
</dl></dd>
</dl></dd>
<dt><a name="3"><b class="cmd">::DiffUtil::compareFiles</b> <span class="opt">?<i class="arg">options</i>?</span> <i class="arg">file1</i> <i class="arg">file2</i></a></dt>
<dd><p>Compare two files.
The return value is a boolean which is true when equal.</p>
<dl class="doctools_options">
<dt><b class="option">-nocase</b></dt>
<dd><p>Ignore case.</p></dd>
<dt><b class="option">-ignorekey</b></dt>
<dd><p>Ignore keyword substitutions. This is limited to the first 60k of the file.</p></dd>
<dt><b class="option">-encoding</b> <i class="arg">enc</i></dt>
<dd><p>Read files with this encoding. (As in fconfigure -encoding.)</p></dd>
<dt><b class="option">-translation</b> <i class="arg">trans</i></dt>
<dd><p>Read files with this translation. (As in fconfigure -translation.)</p></dd>
</dl></dd>
<dt><a name="4"><b class="cmd">::DiffUtil::compareStreams</b> <span class="opt">?<i class="arg">options</i>?</span> <i class="arg">ch1</i> <i class="arg">ch2</i></a></dt>
<dd><p>Compare two channel streams.
The return value is a boolean which is true when equal.</p>
<dl class="doctools_options">
<dt><b class="option">-nocase</b></dt>
<dd><p>Ignore case.</p></dd>
<dt><b class="option">-ignorekey</b></dt>
<dd><p>Ignore keyword substitutions. This is limited to the first 60k read.</p></dd>
<dt><b class="option">-binary</b></dt>
<dd><p>Treat stream as binary data. Normally this means it is configured
with -translation binary.</p></dd>
</dl></dd>
</dl>
</div>
<div id="section3" class="doctools_section"><h2><a name="section3">EXAMPLES</a></h2>
<pre class="doctools_example">
% DiffUtil::diffFiles $file1 $file2
{{3 2 3 4}}
</pre>
</div>
<div id="keywords" class="doctools_section"><h2><a name="keywords">Keywords</a></h2>
<p>diff, lcs, longest common substring</p>
</div>
<div id="copyright" class="doctools_section"><h2><a name="copyright">Copyright</a></h2>
<p>Copyright &copy; 2010, Peter Spjuth</p>
</div>
</div></body></html>

[manpage_begin DiffUtil n 0.4.1]
[copyright {2010, Peter Spjuth}]
[moddesc   {Comparision Utilities}]
[titledesc {Compare Stuff}]
[require Tcl 8.6]
[require DiffUtil [opt 0.4.1]]
[description]
[para]

This package provides utilites for comparisons of strings, lists
and files.
The base comparison is a Longest Common Substring algorithm based
on J. W. Hunt and M. D. McIlroy, "An algorithm for differential

[call [cmd "::DiffUtil::diffFiles"] \
        [opt [arg options]] [arg file1] [arg file2]]

Compare two files line by line.
The return value depends on the [arg -result] option, see below.

[list_begin options]

[opt_def -nocase]
Ignore case.

[opt_def -i]
Ignore case.

[call [cmd "::DiffUtil::diffLists"] \
        [opt [arg options]] [arg list1] [arg list2]]

Compare two lists element by element.
The return value depends on the [arg -result] option, see below.

[list_begin options]

[opt_def -nocase]
Ignore case.

[opt_def -i]
Ignore case.

[def [const match]]
The return value is a list of two lists of equal length. The first
sublist is of indices in [arg list1], and the second sublist is
of indices in [arg list2].  Each corresponding pair of indices
corresponds to equal elements in the sequences.
[list_end]

[list_end]

[call [cmd "::DiffUtil::compareFiles"] \
        [opt [arg options]] [arg file1] [arg file2]]

Compare two files.
The return value is a boolean which is true when equal.

[list_begin options]

[opt_def -nocase]
Ignore case.

[opt_def -ignorekey]
Ignore keyword substitutions. This is limited to the first 60k of the file.

[opt_def -encoding [arg enc]]
Read files with this encoding. (As in fconfigure -encoding.)

[opt_def -translation [arg trans]]
Read files with this translation. (As in fconfigure -translation.)

[list_end]

[call [cmd "::DiffUtil::compareStreams"] \
        [opt [arg options]] [arg ch1] [arg ch2]]

Compare two channel streams.
The return value is a boolean which is true when equal.

[list_begin options]

[opt_def -nocase]
Ignore case.

[opt_def -ignorekey]
Ignore keyword substitutions. This is limited to the first 60k read.

[opt_def -binary]
Treat stream as binary data. Normally this means it is configured
with -translation binary.

[list_end]

[list_end]

[section EXAMPLES]

[para]

'\"
'\" Generated from file 'diffutil\&.man' by tcllib/doctools with format 'nroff'
'\" Copyright (c) 2010, Peter Spjuth
'\"
.TH "DiffUtil" n 0\&.4\&.1 diffutil "Comparision Utilities"
.\" The -*- nroff -*- definitions below are for supplemental macros used
.\" in Tcl/Tk manual entries.
.\"
.\" .AP type name in/out ?indent?
.\"	Start paragraph describing an argument to a library procedure.
.\"	type is type of argument (int, etc.), in/out is either "in", "out",
.\"	or "in/out" to describe whether procedure reads or modifies arg,

..
.BS
.SH NAME
DiffUtil \- Compare Stuff
.SH SYNOPSIS
package require \fBTcl  8\&.6\fR
.sp
package require \fBDiffUtil  ?0\&.4\&.1?\fR
.sp
\fB::DiffUtil::diffFiles\fR ?\fIoptions\fR? \fIfile1\fR \fIfile2\fR
.sp
\fB::DiffUtil::diffLists\fR ?\fIoptions\fR? \fIlist1\fR \fIlist2\fR
.sp
\fB::DiffUtil::compareFiles\fR ?\fIoptions\fR? \fIfile1\fR \fIfile2\fR
.sp
\fB::DiffUtil::compareStreams\fR ?\fIoptions\fR? \fIch1\fR \fIch2\fR
.sp
.BE
.SH DESCRIPTION
.PP
This package provides utilites for comparisons of strings, lists
and files\&.
The base comparison is a Longest Common Substring algorithm based

\fBmatch\fR
The return value is a list of two lists of equal length\&. The first
sublist is of indices in \fIlist1\fR, and the second sublist is
of indices in \fIlist2\fR\&.  Each corresponding pair of indices
corresponds to equal elements in the sequences\&.
.RE
.RE
.TP
\fB::DiffUtil::compareFiles\fR ?\fIoptions\fR? \fIfile1\fR \fIfile2\fR
Compare two files\&.
The return value is a boolean which is true when equal\&.
.RS
.TP
\fB-nocase\fR
Ignore case\&.
.TP
\fB-ignorekey\fR
Ignore keyword substitutions\&. This is limited to the first 60k of the file\&.
.TP
\fB-encoding\fR \fIenc\fR
Read files with this encoding\&. (As in fconfigure -encoding\&.)
.TP
\fB-translation\fR \fItrans\fR
Read files with this translation\&. (As in fconfigure -translation\&.)
.RE
.TP
\fB::DiffUtil::compareStreams\fR ?\fIoptions\fR? \fIch1\fR \fIch2\fR
Compare two channel streams\&.
The return value is a boolean which is true when equal\&.
.RS
.TP
\fB-nocase\fR
Ignore case\&.
.TP
\fB-ignorekey\fR
Ignore keyword substitutions\&. This is limited to the first 60k read\&.
.TP
\fB-binary\fR
Treat stream as binary data\&. Normally this means it is configured
with -translation binary\&.
.RE
.PP
.SH EXAMPLES
.PP
.CS


% DiffUtil::diffFiles $file1 $file2

#include <tcl.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <ctype.h>
#include <sys/stat.h>
#include "diffutil.h"

/* Visual C++ does not define S_ISDIR */
#ifndef S_ISDIR
#define S_ISDIR(mode_) (((mode_) & _S_IFMT) == _S_IFDIR)
#endif

const int BlockRead_C = 65536;

typedef struct {
    int ignoreKey;
    int noCase;
    int binary;
} CmpOptions_T;

/* Helper to get a filled in CmpOptions_T */
#define InitCmpOptions_T(opts) {opts.ignoreKey = 0; opts.noCase = 0; opts.binary = 0;}

/* This is called when a dollar is encountered during ignore-keyword.
   If return is equal res1/2 says how far we covered and considered equal.
   This do not bother with encoding since the chars we are interested in
   are the same in ascii/binary/utf8. */
static int
ScanKey(
    const char *s1,
    const char *s2,
    const char *e1,
    const char *e2,
    const char **res1,
    const char **res2)
{
    *res1 = s1;
    *res2 = s2;
    /* Scan word chars until : or $ ends the keyword.
       They must be equal up to that point. */
    while (s1 < e1 && s2 < e2) {
	if ((*s1 == ':' || *s1 == '$') && (*s2 == ':' || *s2 == '$')) {
	    /* The keyword part has ended on both sides */

	    /* To be a bit conservative and not confuse keywords with e.g.
	       Tcl namespace variables we only acknowledge these forms:
	       keyword$
	       keyword:$
	       keyword: .*$
	       keyword:: .*$
	    */
	    if (*s1 == ':') {
		s1++;
		if (s1 + 1 >= e1) {
		    return 1;
		}
		/* May be a double colon */
		if (*s1 == ':') {
		    s1++;
		}
		/* Colon must be followed by space or $ */
		if (*s1 != ' ' && *s1 != '$') {
		    return 1;
		}
	    }
	    if (*s2 == ':') {
		s2++;
		if (s2 + 1 >= e2) {
		    return 1;
		}
		if (*s2 == ':') {
		    s2++;
		}
		if (*s2 != ' ' && *s2 != '$') {
		    return 1;
		}
	    }
	    break;
	}
	if (*s1 != *s2) {
	    /* They are not equal keywords */
	    return 0;
	}
	/* Only standard ascii word chars count */
	if ((*s1 >= 'a' && *s1 <= 'z') || (*s1 >= 'A' && *s1 <= 'Z')) {
	    s1++;
	    s2++;
	} else {
	    /* This did not count as a keyword but is sofar equal. */
	    *res1 = s1;
	    *res2 = s2;
	    return 1;
	}
    }
    /* Skip all until $ */
    while (s1 < e1) {
	if (*s1 == '$') {
	    break;
	}
	s1++;
    }
    while (s2 < e2) {
	if (*s2 == '$') {
	    break;
	}
	s2++;
    }
    /* At this point s1/2 should point to the dollar ending the keyword. */
    if (s1 == e1 || s2 == e2) {
	/* We reached the end of string without finishing the keyword.
	   If a potential keyword is at the end we don't care. */
	return 1;
    }
    /* Strings are equal up to this point. Skip the last dollar as well. */
    *res1 = s1 + 1;
    *res2 = s2 + 1;
    return 1;
}

/* Compare two strings, ignoring keywords.
   If return is true, they are equal up to the point of res1/2. */
static int
CompareNoKey(
    const char *s1,		/* UTF string to compare to s2. */
    const char *s2,		/* UTF string s2 is compared to. */
    unsigned long len1,		/* Number of bytes to compare. */
    unsigned long len2,
    CmpOptions_T *cmpOptions,
    const char **res1,
    const char **res2)
{
    Tcl_UniChar ch1 = 0, ch2 = 0;
    const char *end1 = s1 + len1;
    const char *end2 = s2 + len2;
    const char *scan1, *scan2;

    while (s1 < end1 && s2 < end2) {
	if (cmpOptions->binary) {
	    ch1 = *(s1++);
	    ch2 = *(s2++);
	} else {
	    s1 += Tcl_UtfToUniChar(s1, &ch1);
	    s2 += Tcl_UtfToUniChar(s2, &ch2);
	}
	if (ch1 != ch2) {
	    if (cmpOptions->noCase) {
		ch1 = Tcl_UniCharToLower(ch1);
		ch2 = Tcl_UniCharToLower(ch2);
		if (ch1 != ch2) {
		    return 0;
		}
	    } else {
		return 0;
	    }
	}
	if (ch1 == '$') {
	    if (!ScanKey(s1, s2, end1, end2, &scan1, &scan2)) {
		/* If ScanKey said not equal, we trust it unless we use
		   less strict rules */
		if (!cmpOptions->noCase) {
		    return 0;
		}
	    }
	    s1 = scan1;
	    s2 = scan2;
	}
    }
    *res1 = s1;
    *res2 = s2;
    return 1;
}

static int
CompareStreams(
    Tcl_Channel ch1,
    Tcl_Channel ch2,
    CmpOptions_T *cmpOptions)
{
    int equal;
    Tcl_Obj *line1Ptr, *line2Ptr;
    int charactersRead1, charactersRead2;
    int length1, length2;
    int firstblock;
    const char *string1, *string2;

    /* Initialize an object to use as line buffer. */
    line1Ptr = Tcl_NewObj();
    line2Ptr = Tcl_NewObj();
    Tcl_IncrRefCount(line1Ptr);
    Tcl_IncrRefCount(line2Ptr);
    if (cmpOptions->binary) {
	Tcl_SetByteArrayLength(line1Ptr, 70000);
	Tcl_SetByteArrayLength(line2Ptr, 70000);
    } else {
	Tcl_SetObjLength(line1Ptr, 70000);
	Tcl_SetObjLength(line2Ptr, 70000);
    }

    equal = 1;
    firstblock = 1;
    while (equal) {
	charactersRead1 = Tcl_ReadChars(ch1, line1Ptr, BlockRead_C, 0);
	charactersRead2 = Tcl_ReadChars(ch2, line2Ptr, BlockRead_C, 0);
	if (charactersRead1 <= 0 && charactersRead2 <= 0) {
	    /* Nothing more to check */
	    break;
	}
	if (charactersRead1 <= 0 || charactersRead2 <= 0) {
	    /* One of the files is ended */
	    equal = 0;
	    break;
	}
	if (charactersRead1 != charactersRead2  && !cmpOptions->ignoreKey) {
	    /* Different size */
	    equal = 0;
	    break;
	}
	if (cmpOptions->binary) {
	    string1 = (char *) Tcl_GetByteArrayFromObj(line1Ptr, &length1);
	    string2 = (char *) Tcl_GetByteArrayFromObj(line2Ptr, &length2);
	} else {
	    string1 = Tcl_GetStringFromObj(line1Ptr, &length1);
	    string2 = Tcl_GetStringFromObj(line2Ptr, &length2);
	}
	/* Limit ignoreKey to first block to simplify.
	   No need to handle keywords crossing block boundary and a bit
	   better performance on large files. */
	if (firstblock && cmpOptions->ignoreKey) {
	    const char *res1, *res2;
	    unsigned long rem1, rem2;
	    int eq = CompareNoKey(string1, string2, length1, length2,
				  cmpOptions, &res1, &res2);
	    if (!eq) {
		equal = 0;
		break;
	    }
	    firstblock = 0;
	    /* Did we consume everything? */
	    if (res1 >= string1 + length1 && res2 >= string2 + length2) {
		continue;
	    }
	    /* Compensate for any change in length. */
	    rem1 = length1 - (res1 - string1);
	    rem2 = length2 - (res2 - string2);
	    /* Only one side should have anything left. */
	    if (rem1 > 0 && rem2 > 0) { Tcl_Panic("PANIC"); }
	    if (rem1 > 0) {
		unsigned long chars1;
		/* Adjust side 1 */
		string1 = res1;
		length1 = rem1;
		chars1 = Tcl_NumUtfChars(string1, length1);
		/* Read extra characters from side 2 */
		charactersRead2 = Tcl_ReadChars(ch2, line2Ptr, chars1, 0);
		if (charactersRead2 <= 0) {
		    equal = 0;
		    break;
		}
		if (cmpOptions->binary) {
		    string2 = (char *) Tcl_GetByteArrayFromObj(line2Ptr, &length2);
		} else {
		    string2 = Tcl_GetStringFromObj(line2Ptr, &length2);
		}
	    } else { /* rem2 > 0 */
		unsigned long chars2;
		/* Adjust side 2 */
		string2 = res2;
		length2 = rem2;
		chars2 = Tcl_NumUtfChars(string2, length2);
		/* Read extra characters from side 1 */
		charactersRead1 = Tcl_ReadChars(ch1, line1Ptr, chars2, 0);
		if (charactersRead1 <= 0) {
		    equal = 0;
		    break;
		}
		if (cmpOptions->binary) {
		    string1 = (char *) Tcl_GetByteArrayFromObj(line1Ptr, &length1);
		} else {
		    string1 = Tcl_GetStringFromObj(line1Ptr, &length1);
		}
	    }
	}
	if (length1 != length2) {
	    equal = 0;
	    break;
	}
	if (cmpOptions->binary) {
	    if (strncmp(string1, string2, length1) != 0) {
		equal = 0;
		break;
	    }
	} else if (cmpOptions->noCase) {
	    if (Tcl_UtfNcasecmp(string1, string2, length1) != 0) {
		equal = 0;
		break;
	    }
	} else {
	    if (Tcl_UtfNcmp(string1, string2, length1) != 0) {
		equal = 0;
		break;
	    }
	}
    }

    Tcl_DecrRefCount(line1Ptr);
    Tcl_DecrRefCount(line2Ptr);
    return equal;
}

int
CompareFilesObjCmd(
    ClientData dummy,    	/* Not used. */
    Tcl_Interp *interp,		/* Current interpreter. */
    int objc,			/* Number of arguments. */
    Tcl_Obj *CONST objv[])	/* Argument objects. */
{
    int index, t, result = TCL_OK;
    Tcl_Obj *file1Ptr, *file2Ptr;
    int equal = 0;
    CmpOptions_T cmpOptions;
    Tcl_Obj *encodingPtr = NULL;
    Tcl_Obj *translationPtr = NULL;
    Tcl_StatBuf *statBuf;
    Tcl_Channel ch1 = NULL, ch2 = NULL;

    Tcl_WideUInt size1, size2;
    unsigned mode1, mode2;




    static CONST char *options[] = {
	"-nocase", "-ignorekey", "-encoding",
        "-translation", (char *) NULL
    };
    enum options {
	OPT_NOCASE, OPT_IGNOREKEY, OPT_ENCODING,
        OPT_TRANSLATION
    };

    if (objc < 3) {
        Tcl_WrongNumArgs(interp, 1, objv, "?opts? file1 file2");
	return TCL_ERROR;
    }
    InitCmpOptions_T(cmpOptions);

    for (t = 1; t < objc - 2; t++) {
	if (Tcl_GetIndexFromObj(interp, objv[t], options, "option", 0,
		&index) != TCL_OK) {
            result = TCL_ERROR;
            goto cleanup;
	}
	switch (index) {
	  case OPT_NOCASE:
	      cmpOptions.noCase = 1;
	      break;
	  case OPT_IGNOREKEY:
	      cmpOptions.ignoreKey = 1;
	      break;
	  case OPT_ENCODING:
	      t++;
	      if (t >= objc - 2) {
		  Tcl_WrongNumArgs(interp, 1, objv, "?opts? file1 file2");
		  result = TCL_ERROR;
		  goto cleanup;

    }
    file1Ptr = objv[objc-2];
    file2Ptr = objv[objc-1];

    if (translationPtr != NULL) {
	char *valueName = Tcl_GetString(translationPtr);
	if (strcmp(valueName, "binary") == 0) {
	    cmpOptions.binary = 1;
	}
    }

    statBuf = Tcl_AllocStatBuf();

    /* Stat files first to quickly see if they don't exist */
    if (Tcl_FSStat(file1Ptr, statBuf) != 0) {

    ckfree((char *) statBuf);

    if (S_ISDIR(mode1) || S_ISDIR(mode2)) {
	equal = 0;
	goto done;
    }
    /* On binary comparison, different size means different */
    if (cmpOptions.binary && !cmpOptions.ignoreKey && size1 != size2) {
	equal = 0;
	goto done;
    }

    ch1 = Tcl_FSOpenFileChannel(interp, file1Ptr, "r", 0);
    if (ch1 == NULL) {
        result = TCL_ERROR;
        goto cleanup;
    }
    ch2 = Tcl_FSOpenFileChannel(interp, file2Ptr, "r", 0);
    if (ch2 == NULL) {

	}
	if (Tcl_SetChannelOption(interp, ch2, "-translation", valueName)
		!= TCL_OK) {
	    result = TCL_ERROR;
	    goto cleanup;
	}
    }














    equal = CompareStreams(ch1, ch2, &cmpOptions);
















































    done:
    Tcl_SetObjResult(interp, Tcl_NewIntObj(equal));

    cleanup:

    if (ch1 != NULL) {

    }
    if (translationPtr != NULL) {
	Tcl_DecrRefCount(translationPtr);
    }

    return result;
}

int
CompareStreamsObjCmd(
    ClientData dummy,    	/* Not used. */
    Tcl_Interp *interp,		/* Current interpreter. */
    int objc,			/* Number of arguments. */
    Tcl_Obj *CONST objv[])	/* Argument objects. */
{
    int index, t, result = TCL_OK;
    int equal;
    CmpOptions_T cmpOptions;
    Tcl_Channel ch1, ch2;

    static CONST char *options[] = {
	"-nocase", "-ignorekey", "-binary",
        (char *) NULL
    };
    enum options {
	OPT_NOCASE, OPT_IGNOREKEY, OPT_BINARY
    };

    if (objc < 3) {
        Tcl_WrongNumArgs(interp, 1, objv, "?opts? ch1 ch2");
	return TCL_ERROR;
    }
    InitCmpOptions_T(cmpOptions);

    for (t = 1; t < objc - 2; t++) {
	if (Tcl_GetIndexFromObj(interp, objv[t], options, "option", 0,
		&index) != TCL_OK) {
            result = TCL_ERROR;
            goto cleanup;
	}
	switch (index) {
	  case OPT_NOCASE:
	      cmpOptions.noCase = 1;
	      break;
	  case OPT_IGNOREKEY:
	      cmpOptions.ignoreKey = 1;
	      break;
	  case OPT_BINARY:
	      cmpOptions.binary = 1;
	      break;
	}
    }

    ch1 = Tcl_GetChannel(interp, Tcl_GetString(objv[objc-2]), NULL);
    if (ch1 == NULL) {
	result = TCL_ERROR;
	goto cleanup;
    }
    ch2 = Tcl_GetChannel(interp, Tcl_GetString(objv[objc-1]), NULL);
    if (ch2 == NULL) {
	result = TCL_ERROR;
	goto cleanup;
    }

    equal = CompareStreams(ch1, ch2, &cmpOptions);
    Tcl_SetObjResult(interp, Tcl_NewIntObj(equal));

    cleanup:
    return result;
}

#include "diffutil.h"

/* A type for the parsing state */
typedef enum {
    IN_NONE, IN_SPACE, IN_NUMBER
} In_T;

/*
 * max already defined by Visual C++, but reuse our def just in case
 * semantics differ.
 */
#ifdef max
#undef max /* Unset to prevent preprocessor warnings */
#endif
#define max(a,b) ((a) > (b) ? (a) : (b))

/* A type to implement the Candidates in the LCS algorithm */
typedef struct Candidate_T {
    /* Line numbers in files */
    Line_T line1, line2;
    /* A score value to select between similar candidates */

        }
        return;
    }

    /*
     * In principle this matching should be a rerun of LCS on the block, with
     * forbidden lines allowed.
     * If the group is much larger than the pivot, we do not want to recurse to LCS
     * since that would just repeat the timing problem we try to avoid.
     * Small lists are ok (we should not skip this when pivot=1).
     */
    if (jList->n < 20 || jList->n < optsPtr->pivot * 2) { /* TBD how much larger is ok? */
        int anyForbidden;
        Line_T *newJ;
        DiffOptions_T opts = *optsPtr;
        opts.rFrom1 = firstI;
        opts.rTo1   = lastI;
        opts.rFrom2 = firstJ;
        opts.rTo2   = lastJ;

        return;
    }

    /*
     * Just do a raw sequential matching of forbidden lines.
     * This produces a reasonable, if non-optimal, result.
     * FIXA: Better algorithm here?
     */
    for (j = 0; j < iList->n && j < jList->n; j++) {
        Line_T line1 = iList->Elems[j].line;
        Line_T line2 = jList->Elems[j].line;
        if (IsLineMatch(&iList->Elems[j], &jList->Elems[j], optsPtr)) {
            J[line1] = line2;
        }
    }
}

/*
 * We have ignored forbidden lines before which means that there
 * may be more lines that can be matched.
 */
static void
PostProcessForbidden(
    Tcl_Interp *interp,

        }
        if (P[i].forbidden) {
            /* Make a list of all forbidden lines in this change block. */
            AddToLineList(&iList, i, P[i].hash);
            continue;
        }
    }

    FreeLineList(&iList);
    FreeLineList(&jList);
    /*
     * This could be left to block matching if that is improved
     * to handle equal lines within change blocks.
     */
}

/*
 * The core part of the LCS algorithm.
 * It is independent of data since it only works on hashes.
 *
 * This is the inner part of it, which do not meddle with forbidden lines.
 * It normally respects them, but do not add or clean up any forbidden lines.
 *
 * Returns the J vector as a ckalloc:ed array.
 */
static Line_T *
LcsCoreInner(
    Tcl_Interp *interp,
    Line_T m,      /* number of elements in first sequence */
    Line_T n,      /* number of elements in second sequence */
    const P_T *P,  /* The P vector [0,m] corresponds to lines in "file 1" */
    const E_T *E,  /* The E vector [0,n] corresponds to lines in "file 2" */
    const DiffOptions_T *optsPtr,
    int ignoreForbidden,
    int *anyForbidden) /* Out parameter: Was any forbidden lines skipped? */
{
    Candidate_T **K, *c;
    Line_T i, k, *J;
    /* Keep track of all candidates to free them easily */
    CandidateAlloc_T *candidates = NULL;

    *anyForbidden = 0;

    /*printf("Doing K\n"); */

    /* Initialise K candidate vector */
    K = (Candidate_T **) ckalloc(sizeof(Candidate_T *) * ((m < n ? m : n) + 2));

    Tcl_Interp *interp,
    Line_T m, Line_T n,
    P_T *P, E_T *E,
    const DiffOptions_T *optsPtr)
{
    Line_T i, *J;
    int anyForbidden;

    for (i = 1; i <= m; i++) {
        if (P[i].Eindex != 0) {
            if (optsPtr->noempty && P[i].hash == 0) {
                /* Uphold the -noempty rule by forbidding those connections */
                ForbidP(i, P, E);
            }
            if (E[P[i].Eindex].count > optsPtr->pivot) {

 */
static int
DiffOptsRegsub(
    Tcl_Interp *interp,           /* Current interpreter. */
    Tcl_Obj *obj1Ptr,             /* Input object. */
    Tcl_Obj *rePtr,               /* Regexp object. */
    Tcl_Obj *sub1Ptr,             /* Substitution. */
    Tcl_Obj **resultPtrPtr,       /* Store result, if successful. */
    const DiffOptions_T *optsPtr) /* Options. */
{
    int idx, result, cflags, all, wlen, wsublen, numMatches, offset;
    int start, end, subStart, subEnd, match;
    Tcl_RegExp regExpr;
    Tcl_RegExpInfo info;
    Tcl_Obj *resultPtr, *objPtr, *subPtr;
    Tcl_UniChar ch, *wsrc, *wfirstChar, *wstring, *wsubspec, *wend;

    Tcl_UniChar c;
    Tcl_Obj *resPtr;
    int igSpace = (optsPtr->ignore & (IGNORE_SPACE_CHANGE | IGNORE_ALL_SPACE));
    int word = optsPtr->wordparse;

    resPtr = Tcl_NewListObj(0, NULL);
    Tcl_IncrRefCount(resPtr);

    string = Tcl_GetStringFromObj(strPtr, &length);
    str = string;
    startWord = str;
    while (*str != 0) {
        endWord = str;
        chsize = Tcl_UtfToUniChar(str, &c);
        isSpace = Tcl_UniCharIsSpace(c);

            Tcl_ListObjAppendElement(interp, *resPtr, str1Ptr);
            Tcl_ListObjAppendElement(interp, *resPtr, str2Ptr);
            Tcl_ListObjAppendElement(interp, *resPtr, emptyPtr);
            Tcl_ListObjAppendElement(interp, *resPtr, emptyPtr);
        }
        return;
    }

    if ((optsPtr->ignore & (IGNORE_SPACE_CHANGE | IGNORE_ALL_SPACE)) ||
        optsPtr->wordparse) {
        /* Do it chunk-wise through list diff */
        CompareStringsL(interp, str1Ptr, str2Ptr, optsPtr, resPtr);
        return;
    }

    int match;
    CompareFun *cmp;
    Tcl_UniChar first1, c2;

    /*
     * We are searching string2 for the sequence string1.
     */

    match = -1;
    if (length1 < 0)
	length1 = Tcl_UniCharLen(ustring1);
    if (length2 < 0)
	length2 = Tcl_UniCharLen(ustring2);

    if (nocase) {

    Tcl_DecrRefCount(apa2);

    /* Handle middle (common) part*/
    Tcl_ListObjAppendElement(interp, res,
	    Tcl_NewUnicodeObj(str1 + found1, foundlen));
    Tcl_ListObjAppendElement(interp, res,
	    Tcl_NewUnicodeObj(str2 + found2, foundlen));

    /* Handle right part, recursively*/
    apa1 = Tcl_NewUnicodeObj(str1 + found1 + foundlen, -1);
    apa2 = Tcl_NewUnicodeObj(str2 + found2 + foundlen, -1);
    Tcl_IncrRefCount(apa1);
    Tcl_IncrRefCount(apa2);
    CompareMidString(interp, apa1, apa2, res, wordparse, nocase);
    Tcl_DecrRefCount(apa1);

    int wordflag;
    Tcl_Obj *res, *mid1, *mid2;
    static CONST char *options[] = {
	"-nocase", "-i", "-b", "-w", "-words", (char *) NULL
    };
    enum options {
	OPT_NOCASE, OPT_I, OPT_B, OPT_W, OPT_WORDS
    };

    if (objc < 3) {
        Tcl_WrongNumArgs(interp, 1, objv, "?opts? line1 line2");
	return TCL_ERROR;
    }

    for (t = 1; t < objc - 2; t++) {
	if (Tcl_GetIndexFromObj(interp, objv[t], options, "option", 0,
		&index) != TCL_OK) {
	    return TCL_ERROR;
	}
	switch (index) {
          case OPT_NOCASE :

	    wordparse = 1;
	    break;
	}
    }

    line1 = Tcl_GetUnicodeFromObj(objv[objc-2], &len1);
    line2 = Tcl_GetUnicodeFromObj(objv[objc-1], &len2);

    s1 = line1;
    s2 = line2;
    e1 = line1 + len1;
    e2 = line2 + len2;

    /* Skip whitespace in both ends*/
    if (ignore > 0) {
	while (s1 < e1 && Tcl_UniCharIsSpace(*s1)) s1++;
	while (s2 < e2 && Tcl_UniCharIsSpace(*s2)) s2++;
	while (e1 > s1 && Tcl_UniCharIsSpace(*(e1-1))) e1--;
	while (e2 > s2 && Tcl_UniCharIsSpace(*(e2-1))) e2--;
    }

    /* Skip matching chars in both ends
     * Forwards */
    word1 = s1; word2 = s2;
    wordflag = 0;
    while (s1 < e1 && s2 < e2) {
	if (wordflag) {
	    word1 = s1;

    }
#endif
    if (Tcl_PkgProvide(interp, PACKAGE_NAME, PACKAGE_VERSION) != TCL_OK) {
	return TCL_ERROR;
    }

    TCOC("DiffUtil::compareFiles", CompareFilesObjCmd);
    TCOC("DiffUtil::compareStreams", CompareStreamsObjCmd);
    TCOC("DiffUtil::diffFiles", DiffFilesObjCmd);
    TCOC("DiffUtil::diffLists", DiffListsObjCmd);
    TCOC("DiffUtil::diffStrings", DiffStringsObjCmd);
    TCOC("DiffUtil::diffStrings2", DiffStrings2ObjCmd);
    Tcl_SetVar(interp, "DiffUtil::version", PACKAGE_VERSION, TCL_GLOBAL_ONLY);
    Tcl_SetVar(interp, "DiffUtil::implementation", "c", TCL_GLOBAL_ONLY);

    int alignLength;
    Line_T *align;
    Line_T staticAlign[STATIC_ALIGN];
} DiffOptions_T;

/* Helper to get a filled in DiffOptions_T */
#define InitDiffOptions_T(opts) {opts.ignore = 0; opts.noempty = 0; opts.pivot = 10; opts.wordparse = 0; opts.rFrom1 = 1; opts.rTo1 = 0; opts.rFrom2 = 1; opts.rTo2 = 0; opts.regsubLeftPtr = NULL; opts.regsubRightPtr = NULL; opts.resultStyle = Result_Diff; opts.firstIndex = 1; opts.alignLength = 0; opts.align = opts.staticAlign;}

/* Flags in DiffOptions_T's ignore field */

#define IGNORE_ALL_SPACE 1
#define IGNORE_SPACE_CHANGE 2
#define IGNORE_CASE 4
#define IGNORE_NUMBERS 8

			DiffOptions_T *optsPtr);
extern void      SortV(V_T *V, Line_T n, const DiffOptions_T *optsPtr);


extern int
CompareFilesObjCmd(ClientData dummy,
                Tcl_Interp *interp,
                int objc,
                Tcl_Obj *CONST objv[]);
extern int
CompareStreamsObjCmd(ClientData dummy,
                Tcl_Interp *interp,
                int objc,
                Tcl_Obj *CONST objv[]);

extern int
DiffFilesObjCmd(ClientData dummy,
                Tcl_Interp *interp,
                int objc,

# Script to build a multi-platform vfs

# Do this separately on mac:
# ./configure
# make clean
# make
# make vfsmac

# Cross-compiling needs a cross-compiled tcl for linking
./configure --host=i586-mingw32msvc --target=i586-mingw32msvc --with-tcl=/home/peter/tcl/win/tcl/win
make clean
make
make vfswin

# 32-bit compiling needs a 32 bit compiled tcl for linking
CFLAGS=-m32 ./configure --disable-64bit --with-tcl=/home/peter/tcl/m32/tcl/unix
make clean
make
make vfs32

./configure --enable-64bit --with-tcl=/home/peter/tcl/v86/tcl/unix
make clean
make
make vfs64

# End with a sanity check
ls -l lib.vfs/DiffUtil/*/*.so lib.vfs/DiffUtil/*/*.dylib lib.vfs/DiffUtil/*/*.dll
file lib.vfs/DiffUtil/*/*.so lib.vfs/DiffUtil/*/*.dylib lib.vfs/DiffUtil/*/*.dll

#----------------------------------------------------------------------
#
#  This is a Tcl implementation of the DiffUtil package
#
#  Copyright (c) 2004, Peter Spjuth
#
#  This package is starting out as a refactoring of diff code from
#  Eskil, and will be released as a separate package when mature.
#
#----------------------------------------------------------------------
# $Revision: 1.12 $
#----------------------------------------------------------------------

package provide DiffUtil 0.4.1

namespace eval DiffUtil {
    namespace export diffFiles diffStrings
    variable version [package provide DiffUtil]
    variable implementation "tcl"
}

    set ch [open _diff_1 wb]
    puts -nonewline $ch $data1
    close $ch
    set ch [open _diff_2 wb]
    puts -nonewline $ch $data2
    close $ch

    set apa [catch {DiffUtil::compareFiles {*}$args _diff_1 _diff_2} res]
    file delete -force _diff_1 _diff_2
    if {$apa} {
        return [list $apa $res]
    }
    return $res
}

} 0

test comparefiles-1.5 {standard cases} {
    set l1 {abcd}
    set l2 {abce}
    RunTest $l1 $l2
} 0

test comparefiles-1.6 {standard cases} {
    set l1 {abcd}
    set l2 {abcD}
    list [RunTest $l1 $l2] [RunTest $l1 $l2 -nocase]
} {0 1}

test comparefiles-2.1 {channel config} {CDiff} {
    set l1 {a b c}
    set l2 {a d c}
    RunTest $l1 $l2 -encoding iso8859-1 -translation lf
} 0

# Tests for the 'DiffUtil' package. -*- tcl -*-
#
# Copyright (c) 2010 by Peter Spjuth. All rights reserved.

package require DiffUtil

if {[lsearch [namespace children] ::tcltest] == -1} {
    package require tcltest
    namespace import ::tcltest::*
}

# There are differences between the C and the Diff result.
tcltest::testConstraint CDiff \
        [expr {[info proc DiffUtil::ExecDiffFiles] == ""}]
tcltest::testConstraint TclDiff \
        [expr {[info proc DiffUtil::ExecDiffFiles] != ""}]

# All tests are for C only
if {[info proc DiffUtil::ExecDiffFiles] != ""} return
#----------------------------------------------------------------------

# A wrapper to simplify calling
proc RunTest {data1 data2 args} {
    set ch [open _diff_1 wb]
    puts -nonewline $ch $data1
    close $ch
    set ch [open _diff_2 wb]
    puts -nonewline $ch $data2
    close $ch

    set ch1 [open _diff_1 rb]
    set ch2 [open _diff_2 rb]

    set apa [catch {DiffUtil::compareStreams {*}$args $ch1 $ch2} res]
    close $ch1
    close $ch2
    file delete -force _diff_1 _diff_2
    if {$apa} {
        return [list $apa $res]
    }
    return $res
}

#----------------------------------------------------------------------

test comparestreams-1.1 {standard cases} {
    set l1 {abcd}
    set l2 {abcd}
    RunTest $l1 $l2
} 1

test comparestreams-1.2 {standard cases, error} -body {
    set l1 {a b c d   f g h i j k l}
    set l2 {  b c d e f g x y   k l}
    RunTest $l1 $l2 -hubba
} -result [list 1 {bad option "-hubba"*}] -match glob

test comparestreams-1.3 {standard cases, error} -body {
    DiffUtil::compareStreams a
} -returnCodes 1 -result "wrong # args*" -match glob

test comparestreams-1.4 {standard cases} {
    set l1 {abcd}
    set l2 {abcde}
    RunTest $l1 $l2
} 0

test comparestreams-1.5 {standard cases} {
    set l1 {abcd}
    set l2 {abce}
    RunTest $l1 $l2
} 0

test comparestreams-1.6 {standard cases} {
    set l1 {abcd}
    set l2 {abcD}
    list [RunTest $l1 $l2] [RunTest $l1 $l2 -nocase]
} {0 1}

test comparestreams-2.1 {keywords} {
    set l1 {abcd}
    set l2 {abcD}
    list [RunTest $l1 $l2] [RunTest $l1 $l2 -ignorekey]
} {0 0}

test comparestreams-2.2 {keywords} {
    set l1 {abcd $apa$}
    set l2 {abcd $apa: hej$}
    list [RunTest $l1 $l2] [RunTest $l1 $l2 -ignorekey]
} {0 1}

test comparestreams-2.3 {keywords} {
    set l1 {abcd $apa::$}
    set l2 {abcd $apa: hej$}
    list [RunTest $l1 $l2] [RunTest $l1 $l2 -ignorekey]
} {0 1}

test comparestreams-2.4 {keywords vs namespace vars} {
    set l1 {abcd $apa::hej$apa::hopp}
    set l2 {abcd $apa::haj$apa::hipp}
    list [RunTest $l1 $l2] [RunTest $l1 $l2 -ignorekey]
} {0 0}

test comparestreams-2.5 {keywords} {
    set l1 {abcd $apa: hejsan$ hopp}
    set l2 {abcd $apa: hoppsan$ hopp}
    list [RunTest $l1 $l2] [RunTest $l1 $l2 -ignorekey]
} {0 1}

test comparestreams-2.6 {keywords} {
    # Longer version of 2.5. Handle larger than block size.
    set l1 {abcd $apa: hejsan$ hopp}
    set l2 {abcd $apa: hoppsan$ hopp}
    append l1 [string repeat gurka 20000]
    append l2 [string repeat gurka 20000]
    list [RunTest $l1 $l2] [RunTest $l1 $l2 -ignorekey]
} {0 1}

test comparestreams-2.7 {keywords} {
    set l1 {abcd $apa: hejsan$ hopp $bepa: hugo$ nej}
    set l2 {abcd $apa: hoppsan$ hopp $bepa: apa$ nej}
    list [RunTest $l1 $l2] [RunTest $l1 $l2 -ignorekey]
} {0 1}

test comparestreams-2.8 {keywords} {
    set base1 {abcd $apa: hejsan$ hopp}
    set base2 {abcd $apa: hoppsan$ hopp}
    set lastOk 0
    # This will eventually fail when the keyword reaches the block size.
    for {set l 65500} {$l < 65540} {incr l} {
        set s1 [string repeat x $l]$base1
        set s2 [string repeat x $l]$base2
        if {[RunTest $s1 $s2 -ignorekey]} {
            set lastOk $l
        }
    }
    # Check that it worked long enough, but not too long
    expr {$lastOk > 65510 && $lastOk != 65539 ? 1 : $lastOk}
} {1}

    set l2 {a \x82 c}
    list [RunTest $l1 $l2 -translation binary] [RunTest $l1 $l2 -encoding utf-8]
} [list [list {2 1 2 1}] {}]

test difffiles-12.1 {stack space bug} -body {
    # These files consume lots of candidate stack and crashed an earlier
    # version of diffUtil.
    DiffUtil::diffFiles -b [file join [configure -testdir] candbug1.txt] [file join [configure -testdir] candbug2.txt]
    return 0
} -result {0}

test difffiles-13.1 {long runtime bug} -constraints {CDiff} -body {
    # This case took very long time in an earlier version
    set l1 {}
    set l2 {}

        lappend l2 a b c d e f g h i j k l m n o p q r s t 
    }
    set result [RunTest $l1 $l2 -pivot 900]
} -result {}

test difffiles-14.1 {pivot bug} -constraints CDiff -body {
    # These files caused an error in post-processing of forbidden lines
    set x [DiffUtil::diffFiles -pivot 100 [file join [configure -testdir] pivot1.txt] [file join [configure -testdir] pivot2.txt]]
    llength $x
} -result {160}

test difffiles-15.1a {forbidden stressing} -constraints {NoLcsDiff} -body {
    # Try to stress the postprocessing of forbidden matches
    # This is the result of diff and C without pivot
    set l1 {}

#------------------------------------------------------------- -*- makefile -*-
#
# Makefile for diffutil
#
# Basic build, test and install
#   nmake /f makefile.vc INSTALLDIR=c:\tcl
#   nmake /f makefile.vc INSTALLDIR=c:\tcl test
#   nmake /f makefile.vc INSTALLDIR=c:\tcl install

#
# For other build options (debug, static etc.),
# See TIP 477 (https://core.tcl.tk/tips/doc/trunk/tip/477.md) for
# detailed documentation.
# 
# See the file "license.terms" for information on usage and redistribution
# of this file, and for a DISCLAIMER OF ALL WARRANTIES.
#





















#------------------------------------------------------------------------------





























































































































PROJECT = DiffUtil



!include "rules-ext.vc"





PRJ_OBJS = \
	$(TMP_DIR)\diffutil.obj \
	$(TMP_DIR)\diff.obj \
	$(TMP_DIR)\comparefiles.obj \
	$(TMP_DIR)\difffiles.obj \

	$(TMP_DIR)\difflists.obj \



	$(TMP_DIR)\diffstrings.obj












































































# Hide numerous warnings of size_t to int conversions (4244) and



# signed/unsigned mismatch (4018) as these may cause genuine warnings








# to be missed


PRJ_DEFINES = -wd4244 -wd4018




















































!include "$(_RULESDIR)\targets.vc"























































































































install: default-install-docs-html


pkgindex: default-pkgindex-tea

/*
 * ----------------------------------------------------------------------------
 * nmakehlp.c --
 *
 *	This is used to fix limitations within nmake and the environment.
 *
 * Copyright (c) 2002 by David Gravereaux.
 * Copyright (c) 2006 by Pat Thoyts
 *
 * See the file "license.terms" for information on usage and redistribution of
 * this file, and for a DISCLAIMER OF ALL WARRANTIES.



 * ----------------------------------------------------------------------------
 */

#define _CRT_SECURE_NO_DEPRECATE
#include <windows.h>
#define NO_SHLWAPI_GDI
#define NO_SHLWAPI_STREAM

/* ISO hack for dumb VC++ */
#ifdef _MSC_VER
#define   snprintf	_snprintf
#endif



/* protos */

static int CheckForCompilerFeature(const char *option);
static int CheckForLinkerFeature(const char **options, int count);
static int IsIn(const char *string, const char *substring);

static int SubstituteFile(const char *substs, const char *filename);
static int QualifyPath(const char *path);
static int LocateDependency(const char *keyfile);
static const char *GetVersionFromFile(const char *filename, const char *match, int numdots);
static DWORD WINAPI ReadFromPipe(LPVOID args);

/* globals */

#define CHUNK	25
#define STATICBUFFERSIZE    1000
typedef struct {
    HANDLE pipe;

main(
    int argc,
    char *argv[])
{
    char msg[300];
    DWORD dwWritten;
    int chars;
    char *s;

    /*
     * Make sure children (cl.exe and link.exe) are kept quiet.
     */

    SetErrorMode(SEM_FAILCRITICALERRORS | SEM_NOOPENFILEERRORBOX);

			"exitcodes: 0 == no, 1 == yes, 2 == error\n", argv[0]);
		WriteFile(GetStdHandle(STD_ERROR_HANDLE), msg, chars,
			&dwWritten, NULL);
		return 2;
	    }
	    return CheckForCompilerFeature(argv[2]);
	case 'l':
	    if (argc < 3) {
		chars = snprintf(msg, sizeof(msg) - 1,
	       		"usage: %s -l <linker option> ?<mandatory option> ...?\n"
			"Tests for whether link.exe supports an option\n"
			"exitcodes: 0 == no, 1 == yes, 2 == error\n", argv[0]);
		WriteFile(GetStdHandle(STD_ERROR_HANDLE), msg, chars,
			&dwWritten, NULL);
		return 2;
	    }
	    return CheckForLinkerFeature(&argv[2], argc-2);
	case 'f':
	    if (argc == 2) {
		chars = snprintf(msg, sizeof(msg) - 1,
			"usage: %s -f <string> <substring>\n"
			"Find a substring within another\n"
			"exitcodes: 0 == no, 1 == yes, 2 == error\n", argv[0]);
		WriteFile(GetStdHandle(STD_ERROR_HANDLE), msg, chars,
			&dwWritten, NULL);
		return 2;
	    } else if (argc == 3) {
		/*
		 * If the string is blank, there is no match.
		 */

		return 0;
	    } else {
		return IsIn(argv[2], argv[3]);
	    }












	case 's':
	    if (argc == 2) {
		chars = snprintf(msg, sizeof(msg) - 1,
			"usage: %s -s <substitutions file> <file>\n"
			"Perform a set of string map type substutitions on a file\n"
			"exitcodes: 0\n",
			argv[0]);

		    "Extract a version from a file:\n"
		    "eg: pkgIndex.tcl \"package ifneeded http\"",
		    argv[0]);
		WriteFile(GetStdHandle(STD_ERROR_HANDLE), msg, chars,
		    &dwWritten, NULL);
		return 0;
	    }
	    s = GetVersionFromFile(argv[2], argv[3], *(argv[1]+2) - '0');
	    if (s && *s) {
		printf("%s\n", s);
		return 0;
	    } else
		return 1; /* Version not found. Return non-0 exit code */

	case 'Q':
	    if (argc != 3) {
		chars = snprintf(msg, sizeof(msg) - 1,
		    "usage: %s -Q path\n"
		    "Emit the fully qualified path\n"
		    "exitcodes: 0 == no, 1 == yes, 2 == error\n", argv[0]);
		WriteFile(GetStdHandle(STD_ERROR_HANDLE), msg, chars,
		    &dwWritten, NULL);
		return 2;
	    }
	    return QualifyPath(argv[2]);

	case 'L':
	    if (argc != 3) {
		chars = snprintf(msg, sizeof(msg) - 1,
		    "usage: %s -L keypath\n"
		    "Emit the fully qualified path of directory containing keypath\n"
		    "exitcodes: 0 == success, 1 == not found, 2 == error\n", argv[0]);
		WriteFile(GetStdHandle(STD_ERROR_HANDLE), msg, chars,
		    &dwWritten, NULL);
		return 2;
	    }
	    return LocateDependency(argv[2]);
	}
    }
    chars = snprintf(msg, sizeof(msg) - 1,
	    "usage: %s -c|-f|-l|-Q|-s|-V ...\n"
	    "This is a little helper app to equalize shell differences between WinNT and\n"
	    "Win9x and get nmake.exe to accomplish its job.\n",
	    argv[0]);
    WriteFile(GetStdHandle(STD_ERROR_HANDLE), msg, chars, &dwWritten, NULL);
    return 2;
}

static int
CheckForCompilerFeature(
    const char *option)
{
    STARTUPINFO si;
    PROCESS_INFORMATION pi;
    SECURITY_ATTRIBUTES sa;
    DWORD threadID;

	DWORD err = GetLastError();
	int chars = snprintf(msg, sizeof(msg) - 1,
		"Tried to launch: \"%s\", but got error [%u]: ", cmdline, err);

	FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM|FORMAT_MESSAGE_IGNORE_INSERTS|
		FORMAT_MESSAGE_MAX_WIDTH_MASK, 0L, err, 0, (LPVOID)&msg[chars],
		(300-chars), 0);
	WriteFile(GetStdHandle(STD_ERROR_HANDLE), msg, lstrlen(msg), &err,NULL);
	return 2;
    }

    /*
     * Close our references to the write handles that have now been inherited.
     */

             || strstr(Err.buffer, "D4002") != NULL
             || strstr(Out.buffer, "D9002") != NULL
             || strstr(Err.buffer, "D9002") != NULL
             || strstr(Out.buffer, "D2021") != NULL
             || strstr(Err.buffer, "D2021") != NULL);
}

static int
CheckForLinkerFeature(
    const char **options,
    int count)
{
    STARTUPINFO si;
    PROCESS_INFORMATION pi;
    SECURITY_ATTRIBUTES sa;
    DWORD threadID;
    char msg[300];
    BOOL ok;
    HANDLE hProcess, h, pipeThreads[2];
    int i;
    char cmdline[255];

    hProcess = GetCurrentProcess();

    ZeroMemory(&pi, sizeof(PROCESS_INFORMATION));
    ZeroMemory(&si, sizeof(STARTUPINFO));
    si.cb = sizeof(STARTUPINFO);
    si.dwFlags   = STARTF_USESTDHANDLES;

    lstrcpy(cmdline, "link.exe -nologo ");

    /*
     * Append our option for testing.
     */

    for (i = 0; i < count; i++) {
	lstrcat(cmdline, " \"");
	lstrcat(cmdline, options[i]);
	lstrcat(cmdline, "\"");
    }

    ok = CreateProcess(
	    NULL,	    /* Module name. */
	    cmdline,	    /* Command line. */
	    NULL,	    /* Process handle not inheritable. */
	    NULL,	    /* Thread handle not inheritable. */
	    TRUE,	    /* yes, inherit handles. */

	DWORD err = GetLastError();
	int chars = snprintf(msg, sizeof(msg) - 1,
		"Tried to launch: \"%s\", but got error [%u]: ", cmdline, err);

	FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM|FORMAT_MESSAGE_IGNORE_INSERTS|
		FORMAT_MESSAGE_MAX_WIDTH_MASK, 0L, err, 0, (LPVOID)&msg[chars],
		(300-chars), 0);
	WriteFile(GetStdHandle(STD_ERROR_HANDLE), msg, lstrlen(msg), &err,NULL);
	return 2;
    }

    /*
     * Close our references to the write handles that have now been inherited.
     */

    /*
     * Look for the commandline warning code in the stderr stream.
     */

    return !(strstr(Out.buffer, "LNK1117") != NULL ||
	    strstr(Err.buffer, "LNK1117") != NULL ||
	    strstr(Out.buffer, "LNK4044") != NULL ||
	    strstr(Err.buffer, "LNK4044") != NULL ||
	    strstr(Out.buffer, "LNK4224") != NULL ||
	    strstr(Err.buffer, "LNK4224") != NULL);
}

static DWORD WINAPI
ReadFromPipe(
    LPVOID args)
{
    pipeinfo *pi = (pipeinfo *) args;
    char *lastBuf = pi->buffer;
    DWORD dwRead;
    BOOL ok;

    }
    lastBuf += dwRead;
    goto again;

    return 0;  /* makes the compiler happy */
}

static int
IsIn(
    const char *string,
    const char *substring)
{
    return (strstr(string, substring) != NULL);
}


























































/*
 * GetVersionFromFile --
 * 	Looks for a match string in a file and then returns the version
 * 	following the match where a version is anything acceptable to
 * 	package provide or package ifneeded.
 */

static const char *
GetVersionFromFile(
    const char *filename,
    const char *match,
    int numdots)
{
    size_t cbBuffer = 100;
    static char szBuffer[100];
    char *szResult = NULL;
    FILE *fp = fopen(filename, "rt");

    if (fp != NULL) {
	/*
	 * Read data until we see our match string.
	 */

	while (fgets(szBuffer, cbBuffer, fp) != NULL) {
	    LPSTR p, q;

	    p = strstr(szBuffer, match);
	    if (p != NULL) {
		/*
		 * Skip to first digit after the match.
		 */

		p += strlen(match);
		while (*p && !isdigit(*p)) {
		    ++p;
		}

		/*
		 * Find ending whitespace.
		 */

		q = p;
		while (*q && (strchr("0123456789.ab", *q)) && ((!strchr(".ab", *q)
			    && (!strchr("ab", q[-1])) || --numdots))) {
		    ++q;
		}

		memcpy(szBuffer, p, q - p);
		szBuffer[q-p] = 0;
		szResult = szBuffer;
		break;

 *	Usage is something like:
 *	  nmakehlp -S << $** > $@
 *        @PACKAGE_NAME@ $(PACKAGE_NAME)
 *        @PACKAGE_VERSION@ $(PACKAGE_VERSION)
 *        <<
 */

static int
SubstituteFile(
    const char *substitutions,
    const char *filename)
{
    size_t cbBuffer = 1024;
    static char szBuffer[1024], szCopy[1024];
    char *szResult = NULL;
    list_item_t *substPtr = NULL;
    FILE *fp, *sp;

    fp = fopen(filename, "rt");
    if (fp != NULL) {

	/*
	 * Build a list of substutitions from the first filename
	 */

	sp = fopen(substitutions, "rt");
	if (sp != NULL) {
	    while (fgets(szBuffer, cbBuffer, sp) != NULL) {
		unsigned char *ks, *ke, *vs, *ve;
		ks = (unsigned char*)szBuffer;
		while (ks && *ks && isspace(*ks)) ++ks;
		ke = ks;
		while (ke && *ke && !isspace(*ke)) ++ke;
		vs = ke;
		while (vs && *vs && isspace(*vs)) ++vs;
		ve = vs;
		while (ve && *ve && !(*ve == '\r' || *ve == '\n')) ++ve;
		*ke = 0, *ve = 0;
		list_insert(&substPtr, (char*)ks, (char*)vs);
	    }
	    fclose(sp);
	}

	/* debug: dump the list */
#ifdef _DEBUG
	{
	    int n = 0;
	    list_item_t *p = NULL;
	    for (p = substPtr; p != NULL; p = p->nextPtr, ++n) {
		fprintf(stderr, "% 3d '%s' => '%s'\n", n, p->key, p->value);
	    }
	}
#endif

	/*
	 * Run the substitutions over each line of the input
	 */

	while (fgets(szBuffer, cbBuffer, fp) != NULL) {
	    list_item_t *p = NULL;
	    for (p = substPtr; p != NULL; p = p->nextPtr) {
		char *m = strstr(szBuffer, p->key);
		if (m) {
		    char *cp, *op, *sp;
		    cp = szCopy;
		    op = szBuffer;
		    while (op != m) *cp++ = *op++;
		    sp = p->value;
		    while (sp && *sp) *cp++ = *sp++;
		    op += strlen(p->key);
		    while (*op) *cp++ = *op++;
		    *cp = 0;
		    memcpy(szBuffer, szCopy, sizeof(szCopy));
		}
	    }
	    printf(szBuffer);
	}

	list_free(&substPtr);
    }
    fclose(fp);
    return 0;
}

/*
 * QualifyPath --
 *
 *	This composes the current working directory with a provided path
 *	and returns the fully qualified and normalized path.
 *	Mostly needed to setup paths for testing.
 */

static int
QualifyPath(
    const char *szPath)
{
    char szCwd[MAX_PATH + 1];
    char szTmp[MAX_PATH + 1];
    char *p;
    GetCurrentDirectory(MAX_PATH, szCwd);
    while ((p = strchr(szPath, '/')) && *p)
	*p = '\\';
    PathCombine(szTmp, szCwd, szPath);
    PathCanonicalize(szCwd, szTmp);
    printf("%s\n", szCwd);
    return 0;
}

/*
 * Implements LocateDependency for a single directory. See that command
 * for an explanation.
 * Returns 0 if found after printing the directory.
 * Returns 1 if not found but no errors.
 * Returns 2 on any kind of error
 * Basically, these are used as exit codes for the process.
 */
static int LocateDependencyHelper(const char *dir, const char *keypath)
{
    HANDLE hSearch;
    char path[MAX_PATH+1];
    int dirlen, keylen, ret;
    WIN32_FIND_DATA finfo;

    if (dir == NULL || keypath == NULL)
	return 2; /* Have no real error reporting mechanism into nmake */
    dirlen = strlen(dir);
    if ((dirlen + 3) > sizeof(path))
	return 2;
    strncpy(path, dir, dirlen);
    strncpy(path+dirlen, "\\*", 3);	/* Including terminating \0 */
    keylen = strlen(keypath);

#if 0 /* This function is not available in Visual C++ 6 */
    /*
     * Use numerics 0 -> FindExInfoStandard,
     * 1 -> FindExSearchLimitToDirectories, 
     * as these are not defined in Visual C++ 6
     */
    hSearch = FindFirstFileEx(path, 0, &finfo, 1, NULL, 0);
#else
    hSearch = FindFirstFile(path, &finfo);
#endif
    if (hSearch == INVALID_HANDLE_VALUE)
	return 1; /* Not found */

    /* Loop through all subdirs checking if the keypath is under there */
    ret = 1; /* Assume not found */
    do {
	int sublen;
	/*
	 * We need to check it is a directory despite the 
	 * FindExSearchLimitToDirectories in the above call. See SDK docs
	 */
	if ((finfo.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) == 0)
	    continue;
	sublen = strlen(finfo.cFileName);
	if ((dirlen+1+sublen+1+keylen+1) > sizeof(path))
	    continue;		/* Path does not fit, assume not matched */
	strncpy(path+dirlen+1, finfo.cFileName, sublen);
	path[dirlen+1+sublen] = '\\';
	strncpy(path+dirlen+1+sublen+1, keypath, keylen+1);
	if (PathFileExists(path)) {
	    /* Found a match, print to stdout */
	    path[dirlen+1+sublen] = '\0';
	    QualifyPath(path);
	    ret = 0;
	    break;
	}
    } while (FindNextFile(hSearch, &finfo));
    FindClose(hSearch);
    return ret;
}

/*
 * LocateDependency --
 *
 *	Locates a dependency for a package.
 *        keypath - a relative path within the package directory
 *          that is used to confirm it is the correct directory.
 *	The search path for the package directory is currently only
 *      the parent and grandparent of the current working directory.
 *      If found, the command prints 
 *         name_DIRPATH=<full path of located directory>
 *      and returns 0. If not found, does not print anything and returns 1.
 */
static int LocateDependency(const char *keypath)
{
    int i, ret;
    static char *paths[] = {"..", "..\\..", "..\\..\\.."};
    
    for (i = 0; i < (sizeof(paths)/sizeof(paths[0])); ++i) {
	ret = LocateDependencyHelper(paths[i], keypath);
	if (ret == 0)
	    return ret;
    }
    return ret;
}


/*
 * Local variables:
 *   mode: c
 *   c-basic-offset: 4
 *   fill-column: 78
 *   indent-tabs-mode: t
 *   tab-width: 8
 * End:
 */

# This file should only be included in makefiles for Tcl extensions,
# NOT in the makefile for Tcl itself.

!ifndef _RULES_EXT_VC

# We need to run from the directory the parent makefile is located in.
# nmake does not tell us what makefile was used to invoke it so parent
# makefile has to set the MAKEFILEVC macro or we just make a guess and
# warn if we think that is not the case.
!if "$(MAKEFILEVC)" == ""

!if exist("$(PROJECT).vc")
MAKEFILEVC = $(PROJECT).vc
!elseif exist("makefile.vc")
MAKEFILEVC = makefile.vc
!endif
!endif # "$(MAKEFILEVC)" == ""

!if !exist("$(MAKEFILEVC)")
MSG = ^
You must run nmake from the directory containing the project makefile.^
If you are doing that and getting this message, set the MAKEFILEVC^
macro to the name of the project makefile.
!message WARNING: $(MSG)
!endif

!if "$(PROJECT)" == "tcl"
!error The rules-ext.vc file is not intended for Tcl itself.
!endif

# We extract version numbers using the nmakehlp program. For now use
# the local copy of nmakehlp. Once we locate Tcl, we will use that
# one if it is newer.
!if [$(CC) -nologo "nmakehlp.c" -link -subsystem:console > nul]
!endif

# First locate the Tcl directory that we are working with.
!if "$(TCLDIR)" != ""

_RULESDIR = $(TCLDIR:/=\)

!else

# If an installation path is specified, that is also the Tcl directory.
# Also Tk never builds against an installed Tcl, it needs Tcl sources
!if defined(INSTALLDIR) && "$(PROJECT)" != "tk"
_RULESDIR=$(INSTALLDIR:/=\)
!else
# Locate Tcl sources
!if [echo _RULESDIR = \> nmakehlp.out] \
   || [nmakehlp -L generic\tcl.h >> nmakehlp.out]
_RULESDIR = ..\..\tcl
!else
!include nmakehlp.out
!endif

!endif # defined(INSTALLDIR)....

!endif # ifndef TCLDIR

# Now look for the targets.vc file under the Tcl root. Note we check this
# file and not rules.vc because the latter also exists on older systems.
!if exist("$(_RULESDIR)\lib\nmake\targets.vc") # Building against installed Tcl
_RULESDIR = $(_RULESDIR)\lib\nmake
!elseif exist("$(_RULESDIR)\win\targets.vc")   # Building against Tcl sources
_RULESDIR = $(_RULESDIR)\win
!else
# If we have not located Tcl's targets file, most likely we are compiling
# against an older version of Tcl and so must use our own support files.
_RULESDIR = .
!endif

!if "$(_RULESDIR)" != "."
# Potentially using Tcl's support files. If this extension has its own
# nmake support files, need to compare the versions and pick newer.

!if exist("rules.vc") # The extension has its own copy

!if [echo TCL_RULES_MAJOR = \> versions.vc] \
   && [nmakehlp -V "$(_RULESDIR)\rules.vc" RULES_VERSION_MAJOR >> versions.vc]
!endif
!if [echo TCL_RULES_MINOR = \>> versions.vc] \
   && [nmakehlp -V "$(_RULESDIR)\rules.vc" RULES_VERSION_MINOR >> versions.vc]
!endif

!if [echo OUR_RULES_MAJOR = \>> versions.vc] \
   && [nmakehlp -V "rules.vc" RULES_VERSION_MAJOR >> versions.vc]
!endif
!if [echo OUR_RULES_MINOR = \>> versions.vc] \
   && [nmakehlp -V "rules.vc" RULES_VERSION_MINOR >> versions.vc]
!endif
!include versions.vc
# We have a newer version of the support files, use them
!if ($(TCL_RULES_MAJOR) != $(OUR_RULES_MAJOR)) || ($(TCL_RULES_MINOR) < $(OUR_RULES_MINOR))
_RULESDIR = .
!endif

!endif # if exist("rules.vc")

!endif # if $(_RULESDIR) != "."

# Let rules.vc know what copy of nmakehlp.c to use.
NMAKEHLPC = $(_RULESDIR)\nmakehlp.c

# Get rid of our internal defines before calling rules.vc
!undef TCL_RULES_MAJOR
!undef TCL_RULES_MINOR
!undef OUR_RULES_MAJOR
!undef OUR_RULES_MINOR

!if exist("$(_RULESDIR)\rules.vc")
!message *** Using $(_RULESDIR)\rules.vc
!include "$(_RULESDIR)\rules.vc"
!else
!error *** Could not locate rules.vc in $(_RULESDIR)
!endif

!endif # _RULES_EXT_VC

#------------------------------------------------------------- -*- makefile -*-
# rules.vc --
#
# Part of the nmake based build system for Tcl and its extensions.
# This file does all the hard work in terms of parsing build options,
# compiler switches, defining common targets and macros. The Tcl makefile
# directly includes this. Extensions include it via "rules-ext.vc".
#


# See TIP 477 (https://core.tcl.tk/tips/doc/trunk/tip/477.md) for
# detailed documentation.
#
# See the file "license.terms" for information on usage and redistribution
# of this file, and for a DISCLAIMER OF ALL WARRANTIES.
#
# Copyright (c) 2001-2003 David Gravereaux.
# Copyright (c) 2003-2008 Patrick Thoyts
# Copyright (c) 2017      Ashok P. Nadkarni


#------------------------------------------------------------------------------

!ifndef _RULES_VC
_RULES_VC = 1

# The following macros define the version of the rules.vc nmake build system
# For modifications that are not backward-compatible, you *must* change
# the major version.
RULES_VERSION_MAJOR = 1
RULES_VERSION_MINOR = 1

# The PROJECT macro must be defined by parent makefile.
!if "$(PROJECT)" == ""
!error *** Error: Macro PROJECT not defined! Please define it before including rules.vc
!endif

!if "$(PRJ_PACKAGE_TCLNAME)" == ""
PRJ_PACKAGE_TCLNAME = $(PROJECT)
!endif

# Also special case Tcl and Tk to save some typing later
DOING_TCL = 0
DOING_TK  = 0
!if "$(PROJECT)" == "tcl"
DOING_TCL = 1
!elseif "$(PROJECT)" == "tk"
DOING_TK = 1
!endif

!ifndef NEED_TK
# Backwards compatibility
!ifdef PROJECT_REQUIRES_TK

NEED_TK = $(PROJECT_REQUIRES_TK)
!else
NEED_TK = 0
!endif
!endif

!ifndef NEED_TCL_SOURCE
NEED_TCL_SOURCE = 0
!endif

!ifdef NEED_TK_SOURCE
!if $(NEED_TK_SOURCE)
NEED_TK = 1
!endif
!else
NEED_TK_SOURCE = 0
!endif

################################################################
# Nmake is a pretty weak environment in syntax and capabilities
# so this file is necessarily verbose. It's broken down into
# the following parts.
#
# 0. Sanity check that compiler environment is set up and initialize
#    any built-in settings from the parent makefile
# 1. First define the external tools used for compiling, copying etc.
#    as this is independent of everything else.
# 2. Figure out our build structure in terms of the directory, whether
#    we are building Tcl or an extension, etc.
# 3. Determine the compiler and linker versions
# 4. Build the nmakehlp helper application
# 5. Determine the supported compiler options and features
# 6. Parse the OPTS macro value for user-specified build configuration
# 7. Parse the STATS macro value for statistics instrumentation
# 8. Parse the CHECKS macro for additional compilation checks
# 9. Extract Tcl, and possibly Tk, version numbers from the headers
# 10. Based on this selected configuration, construct the output
#     directory and file paths
# 11. Construct the paths where the package is to be installed
# 12. Set up the actual options passed to compiler and linker based
#     on the information gathered above.
# 13. Define some standard build targets and implicit rules. These may
#     be optionally disabled by the parent makefile.
# 14. (For extensions only.) Compare the configuration of the target
#     Tcl and the extensions and warn against discrepancies.
#
# One final note about the macro names used. They are as they are
# for historical reasons. We would like legacy extensions to
# continue to work with this make include file so be wary of
# changing them for consistency or clarity.

# 0. Sanity check compiler environment

# Check to see we are configured to build with MSVC (MSDEVDIR, MSVCDIR or
# VCINSTALLDIR) or with the MS Platform SDK (MSSDK or WindowsSDKDir)

!if !defined(MSDEVDIR) && !defined(MSVCDIR) && !defined(VCINSTALLDIR) && !defined(MSSDK) && !defined(WINDOWSSDKDIR)
MSG = ^
Visual C++ compiler environment not initialized.
!error $(MSG)

!endif

# We need to run from the directory the parent makefile is located in.
# nmake does not tell us what makefile was used to invoke it so parent
# makefile has to set the MAKEFILEVC macro or we just make a guess and
# warn if we think that is not the case.
!if "$(MAKEFILEVC)" == ""

!if exist("$(PROJECT).vc")
MAKEFILEVC = $(PROJECT).vc
!elseif exist("makefile.vc")
MAKEFILEVC = makefile.vc
!endif
!endif # "$(MAKEFILEVC)" == ""

!if !exist("$(MAKEFILEVC)")
MSG = ^
You must run nmake from the directory containing the project makefile.^
If you are doing that and getting this message, set the MAKEFILEVC^
macro to the name of the project makefile.
!message WARNING: $(MSG)
!endif


################################################################
# 1. Define external programs being used

#----------------------------------------------------------
# Set the proper copy method to avoid overwrite questions
# to the user when copying files and selecting the right
# "delete all" method.
#----------------------------------------------------------


RMDIR	= rmdir /S /Q





CPY	= xcopy /i /y >NUL
CPYDIR  = xcopy /e /i /y >NUL
COPY	= copy /y >NUL








MKDIR   = mkdir


######################################################################
# 2. Figure out our build environment in terms of what we're building.
#

# (a) Tcl itself
# (b) Tk
# (c) a Tcl extension using libraries/includes from an *installed* Tcl
# (d) a Tcl extension using libraries/includes from Tcl source directory
#

# This last is needed because some extensions still need
# some Tcl interfaces that are not publicly exposed.
#
# The fragment will set the following macros:
# ROOT - root of this module sources
# COMPATDIR - source directory that holds compatibility sources
# DOCDIR - source directory containing documentation files
# GENERICDIR - platform-independent source directory
# WINDIR - Windows-specific source directory
# TESTDIR - directory containing test files
# TOOLSDIR - directory containing build tools
# _TCLDIR - root of the Tcl installation OR the Tcl sources. Not set
#    when building Tcl itself.
# _INSTALLDIR - native form of the installation path. For Tcl
#    this will be the root of the Tcl installation. For extensions
#    this will be the lib directory under the root.
# TCLINSTALL  - set to 1 if _TCLDIR refers to
#    headers and libraries from an installed Tcl, and 0 if built against
#    Tcl sources. Not set when building Tcl itself. Yes, not very well
#    named.
# _TCL_H - native path to the tcl.h file
#
# If Tk is involved, also sets the following
# _TKDIR - native form Tk installation OR Tk source. Not set if building
#    Tk itself.
# TKINSTALL - set 1 if _TKDIR refers to installed Tk and 0 if Tk sources
# _TK_H - native path to the tk.h file

# Root directory for sources and assumed subdirectories
ROOT = $(MAKEDIR)\..
# The following paths CANNOT have spaces in them as they appear on the
# left side of implicit rules.
!ifndef COMPATDIR
COMPATDIR	= $(ROOT)\compat

!endif
!ifndef DOCDIR
DOCDIR		= $(ROOT)\doc
!endif
!ifndef GENERICDIR
GENERICDIR	= $(ROOT)\generic
!endif
!ifndef TOOLSDIR
TOOLSDIR	= $(ROOT)\tools
!endif
!ifndef TESTDIR
TESTDIR	= $(ROOT)\tests
!endif
!ifndef LIBDIR

!if exist("$(ROOT)\library")
LIBDIR          = $(ROOT)\library
!else
LIBDIR          = $(ROOT)\lib
!endif
!endif
!ifndef DEMODIR
!if exist("$(LIBDIR)\demos")
DEMODIR		= $(LIBDIR)\demos
!else

DEMODIR		= $(ROOT)\demos
!endif
!endif # ifndef DEMODIR

# Do NOT enclose WINDIR in a !ifndef because Windows always defines
# WINDIR env var to point to c:\windows!
# TBD - This is a potentially dangerous conflict, rename WINDIR to
# something else
WINDIR		= $(ROOT)\win

!ifndef RCDIR
!if exist("$(WINDIR)\rc")
RCDIR           = $(WINDIR)\rc
!else
RCDIR           = $(WINDIR)
!endif
!endif
RCDIR = $(RCDIR:/=\)

# The target directory where the built packages and binaries will be installed.
# INSTALLDIR is the (optional) path specified by the user.
# _INSTALLDIR is INSTALLDIR using the backslash separator syntax
!ifdef INSTALLDIR
### Fix the path separators.
_INSTALLDIR	= $(INSTALLDIR:/=\)
!else
### Assume the normal default.
_INSTALLDIR	= $(HOMEDRIVE)\Tcl
!endif

!if $(DOING_TCL)

# BEGIN Case 2(a) - Building Tcl itself

# Only need to define _TCL_H
_TCL_H = ..\generic\tcl.h

# END Case 2(a) - Building Tcl itself

!elseif $(DOING_TK)

# BEGIN Case 2(b) - Building Tk

TCLINSTALL = 0 # Tk always builds against Tcl source, not an installed Tcl
!if "$(TCLDIR)" == ""
!if [echo TCLDIR = \> nmakehlp.out] \
   || [nmakehlp -L generic\tcl.h >> nmakehlp.out]

!error *** Could not locate Tcl source directory.
!endif
!include nmakehlp.out
!endif # TCLDIR == ""

_TCLDIR	= $(TCLDIR:/=\)
_TCL_H  = $(_TCLDIR)\generic\tcl.h
!if !exist("$(_TCL_H)")

!error Could not locate tcl.h. Please set the TCLDIR macro to point to the Tcl *source* directory.
!endif

_TK_H = ..\generic\tk.h

# END Case 2(b) - Building Tk

!else

# BEGIN Case 2(c) or (d) - Building an extension other than Tk

# If command line has specified Tcl location through TCLDIR, use it
# else default to the INSTALLDIR setting
!if "$(TCLDIR)" != ""

_TCLDIR	= $(TCLDIR:/=\)
!if exist("$(_TCLDIR)\include\tcl.h") # Case 2(c) with TCLDIR defined
TCLINSTALL	= 1
_TCL_H          = $(_TCLDIR)\include\tcl.h
!elseif exist("$(_TCLDIR)\generic\tcl.h") # Case 2(d) with TCLDIR defined
TCLINSTALL	= 0
_TCL_H          = $(_TCLDIR)\generic\tcl.h
!endif

!else  #  # Case 2(c) for extensions with TCLDIR undefined

# Need to locate Tcl depending on whether it needs Tcl source or not.
# If we don't, check the INSTALLDIR for an installed Tcl first

!if exist("$(_INSTALLDIR)\include\tcl.h") && !$(NEED_TCL_SOURCE)

TCLINSTALL	= 1
TCLDIR          = $(_INSTALLDIR)\..
# NOTE: we will be resetting _INSTALLDIR to _INSTALLDIR/lib for extensions
# later so the \.. accounts for the /lib
_TCLDIR		= $(_INSTALLDIR)\..
_TCL_H          = $(_TCLDIR)\include\tcl.h

!else # exist(...) && ! $(NEED_TCL_SOURCE)

!if [echo _TCLDIR = \> nmakehlp.out] \
   || [nmakehlp -L generic\tcl.h >> nmakehlp.out]
!error *** Could not locate Tcl source directory.
!endif
!include nmakehlp.out
TCLINSTALL      = 0
TCLDIR         = $(_TCLDIR)
_TCL_H          = $(_TCLDIR)\generic\tcl.h

!endif # exist(...) && ! $(NEED_TCL_SOURCE)

!endif # TCLDIR


!ifndef _TCL_H

MSG =^
Failed to find tcl.h. The TCLDIR macro is set incorrectly or is not set and default path does not contain tcl.h.
!error $(MSG)
!endif

# Now do the same to locate Tk headers and libs if project requires Tk
!if $(NEED_TK)

!if "$(TKDIR)" != ""

_TKDIR = $(TKDIR:/=\)
!if exist("$(_TKDIR)\include\tk.h")
TKINSTALL      = 1
_TK_H          = $(_TKDIR)\include\tk.h
!elseif exist("$(_TKDIR)\generic\tk.h")
TKINSTALL      = 0
_TK_H          = $(_TKDIR)\generic\tk.h
!endif

!else # TKDIR not defined

# Need to locate Tcl depending on whether it needs Tcl source or not.
# If we don't, check the INSTALLDIR for an installed Tcl first

!if exist("$(_INSTALLDIR)\include\tk.h") && !$(NEED_TK_SOURCE)

TKINSTALL      = 1
# NOTE: we will be resetting _INSTALLDIR to _INSTALLDIR/lib for extensions
# later so the \.. accounts for the /lib
_TKDIR         = $(_INSTALLDIR)\..
_TK_H          = $(_TKDIR)\include\tk.h
TKDIR          = $(_TKDIR)

!else # exist("$(_INSTALLDIR)\include\tk.h") && !$(NEED_TK_SOURCE)

!if [echo _TKDIR = \> nmakehlp.out] \
   || [nmakehlp -L generic\tk.h >> nmakehlp.out]
!error *** Could not locate Tk source directory.
!endif
!include nmakehlp.out
TKINSTALL      = 0
TKDIR          = $(_TKDIR)
_TK_H          = $(_TKDIR)\generic\tk.h

!endif # exist("$(_INSTALLDIR)\include\tk.h") && !$(NEED_TK_SOURCE)


!endif # TKDIR

!ifndef _TK_H
MSG =^
Failed to find tk.h. The TKDIR macro is set incorrectly or is not set and default path does not contain tk.h.
!error $(MSG)
!endif

!endif # NEED_TK

!if $(NEED_TCL_SOURCE) && $(TCLINSTALL)
MSG = ^
*** Warning: This extension requires the source distribution of Tcl.^
*** Please set the TCLDIR macro to point to the Tcl sources.
!error $(MSG)
!endif

!if $(NEED_TK_SOURCE)

!if $(TKINSTALL)

MSG = ^
*** Warning: This extension requires the source distribution of Tk.^
*** Please set the TKDIR macro to point to the Tk sources.
!error $(MSG)


!endif
!endif


# If INSTALLDIR set to tcl installation root dir then reset to the
# lib dir for installing extensions 
!if exist("$(_INSTALLDIR)\include\tcl.h")
_INSTALLDIR=$(_INSTALLDIR)\lib
!endif

# END Case 2(c) or (d) - Building an extension
!endif # if $(DOING_TCL)

################################################################
# 3. Determine compiler version and architecture
# In this section, we figure out the compiler version and the
# architecture for which we are building. This sets the
# following macros:
# VCVERSION - the internal compiler version as 1200, 1400, 1910 etc.
#     This is also printed by the compiler in dotted form 19.10 etc.
# VCVER - the "marketing version", for example Visual C++ 6 for internal
#     compiler version 1200. This is kept only for legacy reasons as it
#     does not make sense for recent Microsoft compilers. Only used for
#     output directory names.
# ARCH - set to IX86 or AMD64 depending on 32- or 64-bit target
# NATIVE_ARCH - set to IX86 or AMD64 for the host machine
# MACHINE - same as $(ARCH) - legacy
# _VC_MANIFEST_EMBED_{DLL,EXE} - commands for embedding a manifest if needed
# CFG_ENCODING - set to an character encoding.
#   TBD - this is passed to compiler as TCL_CFGVAL_ENCODING but can't
#   see where it is used

cc32		= $(CC)   # built-in default.
link32		= link
lib32		= lib
rc32		= $(RC)   # built-in default.



#----------------------------------------------------------------
# Figure out the compiler architecture and version by writing
# the C macros to a file, preprocessing them with the C
# preprocessor and reading back the created file

_HASH=^#
_VC_MANIFEST_EMBED_EXE=
_VC_MANIFEST_EMBED_DLL=
VCVER=0
!if ![echo VCVERSION=_MSC_VER > vercl.x] \
    && ![echo $(_HASH)if defined(_M_IX86) >> vercl.x] \
    && ![echo ARCH=IX86 >> vercl.x] \
    && ![echo $(_HASH)elif defined(_M_AMD64) >> vercl.x] \
    && ![echo ARCH=AMD64 >> vercl.x] \
    && ![echo $(_HASH)endif >> vercl.x] \
    && ![$(cc32) -nologo -TC -P vercl.x 2>NUL]
!include vercl.i
!if $(VCVERSION) < 1900
!if ![echo VCVER= ^\> vercl.vc] \
    && ![set /a $(VCVERSION) / 100 - 6 >> vercl.vc]
!include vercl.vc
!endif
!else
# The simple calculation above does not apply to new Visual Studio releases
# Keep the compiler version in its native form.
VCVER = $(VCVERSION)
!endif
!endif

!if ![del 2>NUL /q/f vercl.x vercl.i vercl.vc]
!endif

#----------------------------------------------------------------
# The MACHINE macro is used by legacy makefiles so set it as well
!ifdef MACHINE
!if "$(MACHINE)" == "x86"
!undef MACHINE
MACHINE = IX86
!elseif "$(MACHINE)" == "x64"
!undef MACHINE
MACHINE = AMD64
!endif
!if "$(MACHINE)" != "$(ARCH)"
!error Specified MACHINE macro $(MACHINE) does not match detected target architecture $(ARCH).
!endif
!else
MACHINE=$(ARCH)
!endif

#------------------------------------------------------------
# Figure out the *host* architecture by reading the registry

!if ![reg query HKLM\Hardware\Description\System\CentralProcessor\0 /v Identifier | findstr /i x86]
NATIVE_ARCH=IX86
!else
NATIVE_ARCH=AMD64
!endif

# Since MSVC8 we must deal with manifest resources.
!if $(VCVERSION) >= 1400
_VC_MANIFEST_EMBED_EXE=if exist $@.manifest mt -nologo -manifest $@.manifest -outputresource:$@;1
_VC_MANIFEST_EMBED_DLL=if exist $@.manifest mt -nologo -manifest $@.manifest -outputresource:$@;2
!endif

!ifndef CFG_ENCODING
CFG_ENCODING	= \"cp1252\"
!endif

################################################################
# 4. Build the nmakehlp program
# This is a helper app we need to overcome nmake's limiting
# environment. We will call out to it to get various bits of
# information about supported compiler options etc.
#
# Tcl itself will always use the nmakehlp.c program which is
# in its own source. This is the "master" copy and kept updated.
#
# Extensions built against an installed Tcl will use the installed
# copy of Tcl's nmakehlp.c if there is one and their own version
# otherwise. In the latter case, they would also be using their own
# rules.vc. Note that older versions of Tcl do not install nmakehlp.c
# or rules.vc.
#
# Extensions built against Tcl sources will use the one from the Tcl source.
#
# When building an extension using a sufficiently new version of Tcl,
# rules-ext.vc will define NMAKEHLPC appropriately to point to the
# copy of nmakehlp.c to be used.

!ifndef NMAKEHLPC
# Default to the one in the current directory (the extension's own nmakehlp.c)
NMAKEHLPC = nmakehlp.c

!if !$(DOING_TCL)
!if $(TCLINSTALL)
!if exist("$(_TCLDIR)\lib\nmake\nmakehlp.c")
NMAKEHLPC = $(_TCLDIR)\lib\nmake\nmakehlp.c
!endif
!else # ! $(TCLINSTALL)
!if exist("$(_TCLDIR)\win\nmakehlp.c")
NMAKEHLPC = $(_TCLDIR)\win\nmakehlp.c
!endif
!endif # $(TCLINSTALL)
!endif # !$(DOING_TCL)

!endif # NMAKEHLPC

# We always build nmakehlp even if it exists since we do not know
# what source it was built from.
!if [$(cc32) -nologo "$(NMAKEHLPC)" -link -subsystem:console > nul]
!endif

################################################################
# 5. Test for compiler features
# Visual C++ compiler options have changed over the years. Check
# which options are supported by the compiler in use.
#
# The following macros are set:
# OPTIMIZATIONS - the compiler flags to be used for optimized builds
# DEBUGFLAGS - the compiler flags to be used for debug builds
# LINKERFLAGS - Flags passed to the linker 
#
# Note that these are the compiler settings *available*, not those
# that will be *used*. The latter depends on the OPTS macro settings
# which we have not yet parsed.
#
# Also note that some of the flags in OPTIMIZATIONS are not really
# related to optimization. They are placed there only for legacy reasons
# as some extensions expect them to be included in that macro.

# -Op improves float consistency. Note only needed for older compilers
# Newer compilers do not need or support this option.
!if [nmakehlp -c -Op]
FPOPTS  = -Op
!endif

# Strict floating point semantics - present in newer compilers in lieu of -Op
!if [nmakehlp -c -fp:strict]
FPOPTS  = $(FPOPTS) -fp:strict
!endif

!if "$(MACHINE)" == "IX86"
### test for pentium errata
!if [nmakehlp -c -QI0f]
!message *** Compiler has 'Pentium 0x0f fix'
FPOPTS  = $(FPOPTS) -QI0f
!else
!message *** Compiler does not have 'Pentium 0x0f fix'
!endif
!endif

### test for optimizations
# /O2 optimization includes /Og /Oi /Ot /Oy /Ob2 /Gs /GF /Gy as per
# documentation. Note we do NOT want /Gs as that inserts a _chkstk
# stack probe at *every* function entry, not just those with more than
# a page of stack allocation resulting in a performance hit.  However,
# /O2 documentation is misleading as its stack probes are simply the
# default page size locals allocation probes and not what is implied
# by an explicit /Gs option.

OPTIMIZATIONS = $(FPOPTS)

!if [nmakehlp -c -O2]
OPTIMIZING = 1
OPTIMIZATIONS   = $(OPTIMIZATIONS) -O2
!else
# Legacy, really. All modern compilers support this
!message *** Compiler does not have 'Optimizations'
OPTIMIZING = 0
!endif

# Checks for buffer overflows in local arrays
!if [nmakehlp -c -GS]
OPTIMIZATIONS  = $(OPTIMIZATIONS) -GS
!endif

# Link time optimization. Note that this option (potentially) makes
# generated libraries only usable by the specific VC++ version that
# created it. Requires /LTCG linker option
!if [nmakehlp -c -GL]
OPTIMIZATIONS  = $(OPTIMIZATIONS) -GL
CC_GL_OPT_ENABLED = 1
!else
# In newer compilers -GL and -YX are incompatible.
!if [nmakehlp -c -YX]
OPTIMIZATIONS  = $(OPTIMIZATIONS) -YX
!endif
!endif # [nmakehlp -c -GL]

DEBUGFLAGS     = $(FPOPTS)

# Run time error checks. Not available or valid in a release, non-debug build
# RTC is for modern compilers, -GZ is legacy
!if [nmakehlp -c -RTC1]
DEBUGFLAGS     = $(DEBUGFLAGS) -RTC1
!elseif [nmakehlp -c -GZ]
DEBUGFLAGS     = $(DEBUGFLAGS) -GZ
!endif

#----------------------------------------------------------------
# Linker flags

# LINKER_TESTFLAGS are for internal use when we call nmakehlp to test
# if the linker supports a specific option. Without these flags link will
# return "LNK1561: entry point must be defined" error compiling from VS-IDE:
# They are not passed through to the actual application / extension
# link rules.
!ifndef LINKER_TESTFLAGS
LINKER_TESTFLAGS = /DLL /NOENTRY /OUT:nmakehlp.out
!endif

LINKERFLAGS     =

# If compiler has enabled link time optimization, linker must too with -ltcg
!ifdef CC_GL_OPT_ENABLED
!if [nmakehlp -l -ltcg $(LINKER_TESTFLAGS)]
LINKERFLAGS     = $(LINKERFLAGS) -ltcg
!endif
!endif

########################################################################
# 6. Parse the OPTS macro to work out the requested build configuration.
# Based on this, we will construct the actual switches to be passed to the
# compiler and linker using the macros defined in the previous section.
# The following macros are defined by this section based on OPTS
# STATIC_BUILD - 0 -> Tcl is to be built as a shared library
#                1 -> build as a static library and shell
# TCL_THREADS - legacy but always 1 on Windows since winsock requires it.
# DEBUG - 1 -> debug build, 0 -> release builds
# SYMBOLS - 1 -> generate PDB's, 0 -> no PDB's
# PROFILE - 1 -> generate profiling info, 0 -> no profiling
# PGO     - 1 -> profile based optimization, 0 -> no
# MSVCRT  - 1 -> link to dynamic C runtime even when building static Tcl build
#           0 -> link to static C runtime for static Tcl build.
#           Does not impact shared Tcl builds (STATIC_BUILD == 0)
# TCL_USE_STATIC_PACKAGES - 1 -> statically link the registry and dde extensions
#           in the Tcl shell. 0 -> keep them as shared libraries
#           Does not impact shared Tcl builds.
# USE_THREAD_ALLOC - 1 -> Use a shared global free pool for allocation.
#           0 -> Use the non-thread allocator.
# UNCHECKED - 1 -> when doing a debug build with symbols, use the release
#           C runtime, 0 -> use the debug C runtime.
# USE_STUBS - 1 -> compile to use stubs interfaces, 0 -> direct linking
# CONFIG_CHECK - 1 -> check current build configuration against Tcl
#           configuration (ignored for Tcl itself)
# Further, LINKERFLAGS are modified based on above.

# Default values for all the above
STATIC_BUILD	= 0
TCL_THREADS	= 1
DEBUG		= 0
SYMBOLS		= 0
PROFILE		= 0
PGO		= 0
MSVCRT		= 1

TCL_USE_STATIC_PACKAGES	= 0
USE_THREAD_ALLOC = 1

UNCHECKED	= 0
CONFIG_CHECK    = 1
!if $(DOING_TCL)
USE_STUBS       = 0
!else
USE_STUBS       = 1
!endif

# If OPTS is not empty AND does not contain "none" which turns off all OPTS
# set the above macros based on OPTS content
!if "$(OPTS)" != "" && ![nmakehlp -f "$(OPTS)" "none"]

# OPTS are specified, parse them

!if [nmakehlp -f $(OPTS) "static"]
!message *** Doing static
STATIC_BUILD	= 1
!endif

!if [nmakehlp -f $(OPTS) "nostubs"]
!message *** Not using stubs
USE_STUBS	= 0
!endif

!if [nmakehlp -f $(OPTS) "nomsvcrt"]
!message *** Doing nomsvcrt
MSVCRT		= 0
!else
!if [nmakehlp -f $(OPTS) "msvcrt"]
!message *** Doing msvcrt
MSVCRT		= 1
!else
!if !$(STATIC_BUILD)
MSVCRT		= 1
!else
MSVCRT		= 0
!endif
!endif
!endif # [nmakehlp -f $(OPTS) "nomsvcrt"]

!if [nmakehlp -f $(OPTS) "staticpkg"] && $(STATIC_BUILD)
!message *** Doing staticpkg
TCL_USE_STATIC_PACKAGES	= 1
!else
TCL_USE_STATIC_PACKAGES	= 0
!endif

!if [nmakehlp -f $(OPTS) "nothreads"]
!message *** Compile explicitly for non-threaded tcl
TCL_THREADS	= 0
USE_THREAD_ALLOC= 0
!else
TCL_THREADS	= 1
USE_THREAD_ALLOC= 1
!endif

!if [nmakehlp -f $(OPTS) "symbols"]
!message *** Doing symbols
DEBUG		= 1
!else
DEBUG		= 0
!endif

!if [nmakehlp -f $(OPTS) "pdbs"]
!message *** Doing pdbs
SYMBOLS		= 1
!else
SYMBOLS		= 0
!endif

!if [nmakehlp -f $(OPTS) "profile"]
!message *** Doing profile
PROFILE		= 1
!else
PROFILE		= 0
!endif

!if [nmakehlp -f $(OPTS) "pgi"]
!message *** Doing profile guided optimization instrumentation
PGO		= 1
!elseif [nmakehlp -f $(OPTS) "pgo"]
!message *** Doing profile guided optimization
PGO		= 2
!else
PGO		= 0
!endif

!if [nmakehlp -f $(OPTS) "loimpact"]
!message *** Warning: ignoring option "loimpact" - deprecated on modern Windows.
!endif

# TBD - should get rid of this option
!if [nmakehlp -f $(OPTS) "thrdalloc"]
!message *** Doing thrdalloc
USE_THREAD_ALLOC = 1


!endif

!if [nmakehlp -f $(OPTS) "tclalloc"]

USE_THREAD_ALLOC = 0


!endif

!if [nmakehlp -f $(OPTS) "unchecked"]
!message *** Doing unchecked
UNCHECKED = 1
!else
UNCHECKED = 0
!endif

!if [nmakehlp -f $(OPTS) "noconfigcheck"]
CONFIG_CHECK = 1
!else
CONFIG_CHECK = 0
!endif

!endif # "$(OPTS)" != ""  && ... parsing of OPTS

# Set linker flags based on above


!if $(PGO) > 1
!if [nmakehlp -l -ltcg:pgoptimize $(LINKER_TESTFLAGS)]
LINKERFLAGS	= $(LINKERFLAGS:-ltcg=) -ltcg:pgoptimize
!else
MSG=^


This compiler does not support profile guided optimization.
!error $(MSG)
!endif
!elseif $(PGO) > 0
!if [nmakehlp -l -ltcg:pginstrument $(LINKER_TESTFLAGS)]
LINKERFLAGS	= $(LINKERFLAGS:-ltcg=) -ltcg:pginstrument
!else
MSG=^
This compiler does not support profile guided optimization.
!error $(MSG)
!endif
!endif

################################################################
# 7. Parse the STATS macro to configure code instrumentation
# The following macros are set by this section:
# TCL_MEM_DEBUG - 1 -> enables memory allocation instrumentation
#                 0 -> disables
# TCL_COMPILE_DEBUG - 1 -> enables byte compiler logging
#                     0 -> disables

# Default both are off
TCL_MEM_DEBUG	    = 0
TCL_COMPILE_DEBUG   = 0

!if "$(STATS)" != "" && ![nmakehlp -f "$(STATS)" "none"]

!if [nmakehlp -f $(STATS) "memdbg"]
!message *** Doing memdbg
TCL_MEM_DEBUG	    = 1
!else
TCL_MEM_DEBUG	    = 0
!endif

!if [nmakehlp -f $(STATS) "compdbg"]
!message *** Doing compdbg
TCL_COMPILE_DEBUG   = 1
!else
TCL_COMPILE_DEBUG   = 0
!endif

!endif

####################################################################
# 8. Parse the CHECKS macro to configure additional compiler checks
# The following macros are set by this section:
# WARNINGS - compiler switches that control the warnings level
# TCL_NO_DEPRECATED - 1 -> disable support for deprecated functions
#                     0 -> enable deprecated functions

# Defaults - Permit deprecated functions and warning level 3
TCL_NO_DEPRECATED	    = 0
WARNINGS		    = -W3

!if "$(CHECKS)" != "" && ![nmakehlp -f "$(CHECKS)" "none"]

!if [nmakehlp -f $(CHECKS) "nodep"]
!message *** Doing nodep check
TCL_NO_DEPRECATED	    = 1
!endif

!if [nmakehlp -f $(CHECKS) "fullwarn"]
!message *** Doing full warnings check
WARNINGS		    = -W4
!if [nmakehlp -l -warn:3 $(LINKER_TESTFLAGS)]
LINKERFLAGS		    = $(LINKERFLAGS) -warn:3
!endif
!endif

!if [nmakehlp -f $(CHECKS) "64bit"] && [nmakehlp -c -Wp64]
!message *** Doing 64bit portability warnings
WARNINGS		    = $(WARNINGS) -Wp64
!endif

!endif

################################################################
# 9. Extract various version numbers
# For Tcl and Tk, version numbers are extracted from tcl.h and tk.h
# respectively. For extensions, versions are extracted from the
# configure.in or configure.ac from the TEA configuration if it
# exists, and unset otherwise.
# Sets the following macros:
# TCL_MAJOR_VERSION
# TCL_MINOR_VERSION
# TCL_PATCH_LEVEL
# TCL_VERSION
# TK_MAJOR_VERSION
# TK_MINOR_VERSION
# TK_PATCH_LEVEL
# TK_VERSION
# DOTVERSION - set as (for example) 2.5
# VERSION - set as (for example 25)
#--------------------------------------------------------------

!if [echo REM = This file is generated from rules.vc > versions.vc]
!endif
!if [echo TCL_MAJOR_VERSION = \>> versions.vc] \
   && [nmakehlp -V "$(_TCL_H)" TCL_MAJOR_VERSION >> versions.vc]
!endif
!if [echo TCL_MINOR_VERSION = \>> versions.vc] \
   && [nmakehlp -V "$(_TCL_H)" TCL_MINOR_VERSION >> versions.vc]
!endif
!if [echo TCL_PATCH_LEVEL = \>> versions.vc] \
   && [nmakehlp -V "$(_TCL_H)" TCL_PATCH_LEVEL >> versions.vc]
!endif

!if defined(_TK_H)
!if [echo TK_MAJOR_VERSION = \>> versions.vc] \
   && [nmakehlp -V $(_TK_H) TK_MAJOR_VERSION >> versions.vc]
!endif
!if [echo TK_MINOR_VERSION = \>> versions.vc] \
   && [nmakehlp -V $(_TK_H) TK_MINOR_VERSION >> versions.vc]
!endif
!if [echo TK_PATCH_LEVEL = \>> versions.vc] \
   && [nmakehlp -V $(_TK_H) TK_PATCH_LEVEL >> versions.vc]
!endif
!endif # _TK_H

!include versions.vc

TCL_VERSION	= $(TCL_MAJOR_VERSION)$(TCL_MINOR_VERSION)
TCL_DOTVERSION	= $(TCL_MAJOR_VERSION).$(TCL_MINOR_VERSION)
!if defined(_TK_H)
TK_VERSION	= $(TK_MAJOR_VERSION)$(TK_MINOR_VERSION)
TK_DOTVERSION	= $(TK_MAJOR_VERSION).$(TK_MINOR_VERSION)
!endif

# Set DOTVERSION and VERSION
!if $(DOING_TCL)

DOTVERSION = $(TCL_MAJOR_VERSION).$(TCL_MINOR_VERSION)
VERSION = $(TCL_VERSION)

!elseif $(DOING_TK)

DOTVERSION = $(TK_DOTVERSION)
VERSION = $(TK_VERSION)

!else # Doing a non-Tk extension

# If parent makefile has not defined DOTVERSION, try to get it from TEA
# first from a configure.in file, and then from configure.ac
!ifndef DOTVERSION
!if [echo DOTVERSION = \> versions.vc] \
   || [nmakehlp -V $(ROOT)\configure.in ^[$(PROJECT)^] >> versions.vc]
!if [echo DOTVERSION = \> versions.vc] \
   || [nmakehlp -V $(ROOT)\configure.ac ^[$(PROJECT)^] >> versions.vc]
!error *** Could not figure out extension version. Please define DOTVERSION in parent makefile before including rules.vc.
!endif
!endif
!include versions.vc
!endif # DOTVERSION
VERSION         = $(DOTVERSION:.=)

!endif # $(DOING_TCL) ... etc.

################################################################
# 10. Construct output directory and file paths
# Figure-out how to name our intermediate and output directories.
# In order to avoid inadvertent mixing of object files built using
# different compilers, build configurations etc.,
#
# Naming convention (suffixes):
#   t = full thread support.
#   s = static library (as opposed to an import library)

#   g = linked to the debug enabled C run-time.

#   x = special static build when it links to the dynamic C run-time.
#
# The following macros are set in this section:
# SUFX - the suffix to use for binaries based on above naming convention
# BUILDDIRTOP - the toplevel default output directory
#      is of the form {Release,Debug}[_AMD64][_COMPILERVERSION]
# TMP_DIR - directory where object files are created
# OUT_DIR - directory where output executables are created
# Both TMP_DIR and OUT_DIR are defaulted only if not defined by the
# parent makefile (or command line). The default values are
# based on BUILDDIRTOP.
# STUBPREFIX - name of the stubs library for this project
# PRJIMPLIB - output path of the generated project import library
# PRJLIBNAME - name of generated project library
# PRJLIB     - output path of generated project library
# PRJSTUBLIBNAME - name of the generated project stubs library
# PRJSTUBLIB - output path of the generated project stubs library
# RESFILE - output resource file (only if not static build)

SUFX	    = tsgx

!if $(DEBUG)
BUILDDIRTOP = Debug
!else
BUILDDIRTOP = Release
!endif

TMP_DIRFULL = .\$(BUILDDIRTOP)\$(PROJECT)_ThreadedDynamicStaticX

!if !$(STATIC_BUILD)
TMP_DIRFULL = $(TMP_DIRFULL:Static=)
SUFX	    = $(SUFX:s=)
EXT	    = dll

TMP_DIRFULL = $(TMP_DIRFULL:X=)
SUFX	    = $(SUFX:x=)

!else
TMP_DIRFULL = $(TMP_DIRFULL:Dynamic=)
EXT	    = lib
!if !$(MSVCRT)
TMP_DIRFULL = $(TMP_DIRFULL:X=)
SUFX	    = $(SUFX:x=)
!endif

!endif
!else
!ifndef OUT_DIR
OUT_DIR	    = $(TMP_DIR)
!endif
!endif

# Relative paths -> absolute
!if [echo OUT_DIR = \> nmakehlp.out] \
   || [nmakehlp -Q "$(OUT_DIR)" >> nmakehlp.out]
!error *** Could not fully qualify path OUT_DIR=$(OUT_DIR)
!endif
!if [echo TMP_DIR = \>> nmakehlp.out] \
   || [nmakehlp -Q "$(TMP_DIR)" >> nmakehlp.out]
!error *** Could not fully qualify path TMP_DIR=$(TMP_DIR)
!endif
!include nmakehlp.out

# The name of the stubs library for the project being built
STUBPREFIX      = $(PROJECT)stub

# Set up paths to various Tcl executables and libraries needed by extensions
!if $(DOING_TCL)

TCLSHNAME       = $(PROJECT)sh$(TCL_VERSION)$(SUFX).exe
TCLSH		= $(OUT_DIR)\$(TCLSHNAME)
TCLIMPLIB	= $(OUT_DIR)\$(PROJECT)$(VERSION)$(SUFX).lib
TCLLIBNAME	= $(PROJECT)$(VERSION)$(SUFX).$(EXT)
TCLLIB		= $(OUT_DIR)\$(TCLLIBNAME)

TCLSTUBLIBNAME	= $(STUBPREFIX)$(VERSION).lib
TCLSTUBLIB	= $(OUT_DIR)\$(TCLSTUBLIBNAME)
TCL_INCLUDES    = -I"$(WINDIR)" -I"$(GENERICDIR)"

!else # ! $(DOING_TCL)

!if $(TCLINSTALL) # Building against an installed Tcl

# When building extensions, we need to locate tclsh. Depending on version
# of Tcl we are building against, this may or may not have a "t" suffix.
# Try various possibilities in turn.
TCLSH		= $(_TCLDIR)\bin\tclsh$(TCL_VERSION)$(SUFX).exe
!if !exist("$(TCLSH)") && $(TCL_THREADS)
TCLSH           = $(_TCLDIR)\bin\tclsh$(TCL_VERSION)t$(SUFX).exe
!endif
!if !exist("$(TCLSH)")
TCLSH           = $(_TCLDIR)\bin\tclsh$(TCL_VERSION)$(SUFX:t=).exe
!endif

TCLSTUBLIB	= $(_TCLDIR)\lib\tclstub$(TCL_VERSION).lib
TCLIMPLIB	= $(_TCLDIR)\lib\tcl$(TCL_VERSION)$(SUFX).lib
# When building extensions, may be linking against Tcl that does not add
# "t" suffix (e.g. 8.5 or 8.7). If lib not found check for that possibility.
!if !exist("$(TCLIMPLIB)")
TCLIMPLIB	= $(_TCLDIR)\lib\tcl$(TCL_VERSION)$(SUFX:t=).lib
!endif
TCL_LIBRARY	= $(_TCLDIR)\lib
TCLREGLIB	= $(_TCLDIR)\lib\tclreg13$(SUFX:t=).lib
TCLDDELIB	= $(_TCLDIR)\lib\tcldde14$(SUFX:t=).lib
TCLTOOLSDIR	= \must\have\tcl\sources\to\build\this\target
TCL_INCLUDES    = -I"$(_TCLDIR)\include"

!else # Building against Tcl sources

TCLSH		= $(_TCLDIR)\win\$(BUILDDIRTOP)\tclsh$(TCL_VERSION)$(SUFX).exe
!if !exist($(TCLSH)) && $(TCL_THREADS)

TCLSH		= $(_TCLDIR)\win\$(BUILDDIRTOP)\tclsh$(TCL_VERSION)t$(SUFX).exe
!endif
!if !exist($(TCLSH))

TCLSH		= $(_TCLDIR)\win\$(BUILDDIRTOP)\tclsh$(TCL_VERSION)$(SUFX:t=).exe
!endif
TCLSTUBLIB	= $(_TCLDIR)\win\$(BUILDDIRTOP)\tclstub$(TCL_VERSION).lib
TCLIMPLIB	= $(_TCLDIR)\win\$(BUILDDIRTOP)\tcl$(TCL_VERSION)$(SUFX).lib
# When building extensions, may be linking against Tcl that does not add
# "t" suffix (e.g. 8.5 or 8.7). If lib not found check for that possibility.
!if !exist("$(TCLIMPLIB)")
TCLIMPLIB	= $(_TCLDIR)\win\$(BUILDDIRTOP)\tcl$(TCL_VERSION)$(SUFX:t=).lib
!endif
TCL_LIBRARY	= $(_TCLDIR)\library
TCLREGLIB	= $(_TCLDIR)\win\$(BUILDDIRTOP)\tclreg13$(SUFX:t=).lib
TCLDDELIB	= $(_TCLDIR)\win\$(BUILDDIRTOP)\tcldde14$(SUFX:t=).lib
TCLTOOLSDIR	= $(_TCLDIR)\tools
TCL_INCLUDES	= -I"$(_TCLDIR)\generic" -I"$(_TCLDIR)\win"

!endif # TCLINSTALL

tcllibs = "$(TCLSTUBLIB)" "$(TCLIMPLIB)"

!endif # $(DOING_TCL)

# We need a tclsh that will run on the host machine as part of the build.
# IX86 runs on all architectures.
!ifndef TCLSH_NATIVE
!if "$(MACHINE)" == "IX86" || "$(MACHINE)" == "$(NATIVE_ARCH)"
TCLSH_NATIVE	= $(TCLSH)
!else

!error You must explicitly set TCLSH_NATIVE for cross-compilation
!endif
!endif

# Do the same for Tk and Tk extensions that require the Tk libraries
!if $(DOING_TK) || $(NEED_TK)
WISHNAMEPREFIX = wish
WISHNAME = $(WISHNAMEPREFIX)$(TK_VERSION)$(SUFX).exe
TKLIBNAME	= $(PROJECT)$(TK_VERSION)$(SUFX).$(EXT)
TKSTUBLIBNAME	= tkstub$(TK_VERSION).lib
TKIMPLIBNAME	= tk$(TK_VERSION)$(SUFX).lib




!if $(DOING_TK)
WISH 		= $(OUT_DIR)\$(WISHNAME)
TKSTUBLIB	= $(OUT_DIR)\$(TKSTUBLIBNAME)
TKIMPLIB	= $(OUT_DIR)\$(TKIMPLIBNAME)
TKLIB		= $(OUT_DIR)\$(TKLIBNAME)
TK_INCLUDES    = -I"$(WINDIR)" -I"$(GENERICDIR)"




!else # effectively NEED_TK

!if $(TKINSTALL) # Building against installed Tk
WISH		= $(_TKDIR)\bin\$(WISHNAME)
TKSTUBLIB	= $(_TKDIR)\lib\$(TKSTUBLIBNAME)
TKIMPLIB	= $(_TKDIR)\lib\$(TKIMPLIBNAME)
# When building extensions, may be linking against Tk that does not add
# "t" suffix (e.g. 8.5 or 8.7). If lib not found check for that possibility.
!if !exist("$(TKIMPLIB)")
TKIMPLIBNAME	= tk$(TK_VERSION)$(SUFX:t=).lib
TKIMPLIB	= $(_TKDIR)\lib\$(TKIMPLIBNAME)
!endif
TK_INCLUDES     = -I"$(_TKDIR)\include"
!else # Building against Tk sources
WISH		= $(_TKDIR)\win\$(BUILDDIRTOP)\$(WISHNAME)
TKSTUBLIB	= $(_TKDIR)\win\$(BUILDDIRTOP)\$(TKSTUBLIBNAME)
TKIMPLIB	= $(_TKDIR)\win\$(BUILDDIRTOP)\$(TKIMPLIBNAME)
# When building extensions, may be linking against Tk that does not add
# "t" suffix (e.g. 8.5 or 8.7). If lib not found check for that possibility.
!if !exist("$(TKIMPLIB)")
TKIMPLIBNAME	= tk$(TK_VERSION)$(SUFX:t=).lib
TKIMPLIB	= $(_TKDIR)\win\$(BUILDDIRTOP)\$(TKIMPLIBNAME)
!endif


TK_INCLUDES     = -I"$(_TKDIR)\generic" -I"$(_TKDIR)\win" -I"$(_TKDIR)\xlib"


!endif # TKINSTALL
tklibs = "$(TKSTUBLIB)" "$(TKIMPLIB)"


!endif # $(DOING_TK)
!endif # $(DOING_TK) || $(NEED_TK)

# Various output paths
PRJIMPLIB	= $(OUT_DIR)\$(PROJECT)$(VERSION)$(SUFX).lib
PRJLIBNAME	= $(PROJECT)$(VERSION)$(SUFX).$(EXT)
PRJLIB		= $(OUT_DIR)\$(PRJLIBNAME)

PRJSTUBLIBNAME	= $(STUBPREFIX)$(VERSION).lib
PRJSTUBLIB	= $(OUT_DIR)\$(PRJSTUBLIBNAME)

# If extension parent makefile has not defined a resource definition file,
# we will generate one from standard template.
!if !$(DOING_TCL) && !$(DOING_TK) && !$(STATIC_BUILD)
!ifdef RCFILE
RESFILE = $(TMP_DIR)\$(RCFILE:.rc=.res)
!else
RESFILE = $(TMP_DIR)\$(PROJECT).res
!endif
!endif

###################################################################
# 11. Construct the paths for the installation directories
# The following macros get defined in this section:
# LIB_INSTALL_DIR - where libraries should be installed
# BIN_INSTALL_DIR - where the executables should be installed
# DOC_INSTALL_DIR - where documentation should be installed
# SCRIPT_INSTALL_DIR - where scripts should be installed
# INCLUDE_INSTALL_DIR - where C include files should be installed
# DEMO_INSTALL_DIR - where demos should be installed
# PRJ_INSTALL_DIR - where package will be installed (not set for tcl and tk)

!if $(DOING_TCL) || $(DOING_TK)
LIB_INSTALL_DIR		= $(_INSTALLDIR)\lib
BIN_INSTALL_DIR		= $(_INSTALLDIR)\bin
DOC_INSTALL_DIR		= $(_INSTALLDIR)\doc
!if $(DOING_TCL)
SCRIPT_INSTALL_DIR	= $(_INSTALLDIR)\lib\$(PROJECT)$(TCL_MAJOR_VERSION).$(TCL_MINOR_VERSION)
!else # DOING_TK
SCRIPT_INSTALL_DIR	= $(_INSTALLDIR)\lib\$(PROJECT)$(TK_MAJOR_VERSION).$(TK_MINOR_VERSION)
!endif
DEMO_INSTALL_DIR	= $(SCRIPT_INSTALL_DIR)\demos
INCLUDE_INSTALL_DIR	= $(_INSTALLDIR)\include

!else # extension other than Tk

PRJ_INSTALL_DIR         = $(_INSTALLDIR)\$(PROJECT)$(DOTVERSION)
LIB_INSTALL_DIR		= $(PRJ_INSTALL_DIR)
BIN_INSTALL_DIR		= $(PRJ_INSTALL_DIR)
DOC_INSTALL_DIR		= $(PRJ_INSTALL_DIR)
SCRIPT_INSTALL_DIR	= $(PRJ_INSTALL_DIR)
DEMO_INSTALL_DIR	= $(PRJ_INSTALL_DIR)\demos
INCLUDE_INSTALL_DIR	= $(_TCLDIR)\include

!endif

###################################################################
# 12. Set up actual options to be passed to the compiler and linker
# Now we have all the information we need, set up the actual flags and
# options that we will pass to the compiler and linker. The main
# makefile should use these in combination with whatever other flags
# and switches are specific to it.
# The following macros are defined, names are for historical compatibility:
# OPTDEFINES - /Dxxx C macro flags based on user-specified OPTS
# COMPILERFLAGS - /Dxxx C macro flags independent of any configuration opttions
# crt - Compiler switch that selects the appropriate C runtime
# cdebug - Compiler switches related to debug AND optimizations
# cwarn - Compiler switches that set warning levels
# cflags - complete compiler switches (subsumes cdebug and cwarn)
# ldebug - Linker switches controlling debug information and optimization
# lflags - complete linker switches (subsumes ldebug) except subsystem type
# dlllflags - complete linker switches to build DLLs (subsumes lflags)
# conlflags - complete linker switches for console program (subsumes lflags)
# guilflags - complete linker switches for GUI program (subsumes lflags)
# baselibs - minimum Windows libraries required. Parent makefile can
#    define PRJ_LIBS before including rules.rc if additional libs are needed

OPTDEFINES	= -DTCL_CFGVAL_ENCODING=$(CFG_ENCODING) -DSTDC_HEADERS

!if $(TCL_MEM_DEBUG)
OPTDEFINES	= $(OPTDEFINES) -DTCL_MEM_DEBUG
!endif
!if $(TCL_COMPILE_DEBUG)
OPTDEFINES	= $(OPTDEFINES) -DTCL_COMPILE_DEBUG -DTCL_COMPILE_STATS
!endif
!if $(TCL_THREADS)
OPTDEFINES	= $(OPTDEFINES) -DTCL_THREADS=1
!if $(USE_THREAD_ALLOC)
OPTDEFINES	= $(OPTDEFINES) -DUSE_THREAD_ALLOC=1
!endif



!endif
!if $(STATIC_BUILD)
OPTDEFINES	= $(OPTDEFINES) -DSTATIC_BUILD
!endif
!if $(TCL_NO_DEPRECATED)
OPTDEFINES	= $(OPTDEFINES) -DTCL_NO_DEPRECATED
!endif

!if $(USE_STUBS)
# Note we do not define USE_TCL_STUBS even when building tk since some
# test targets in tk do not use stubs
!if ! $(DOING_TCL)
USE_STUBS_DEFS  = -DUSE_TCL_STUBS -DUSE_TCLOO_STUBS
!if $(NEED_TK)
USE_STUBS_DEFS  = $(USE_STUBS_DEFS) -DUSE_TK_STUBS
!endif
!endif
!endif # USE_STUBS

!if !$(DEBUG)
OPTDEFINES	= $(OPTDEFINES) -DNDEBUG
!if $(OPTIMIZING)
OPTDEFINES	= $(OPTDEFINES) -DTCL_CFG_OPTIMIZED
!endif
!endif
!if $(PROFILE)
OPTDEFINES	= $(OPTDEFINES) -DTCL_CFG_PROFILED
!endif
!if "$(MACHINE)" == "AMD64"
OPTDEFINES	= $(OPTDEFINES) -DTCL_CFG_DO64BIT
!endif
!if $(VCVERSION) < 1300
OPTDEFINES	= $(OPTDEFINES) -DNO_STRTOI64
!endif

# _ATL_XP_TARGETING - Newer SDK's need this to build for XP
COMPILERFLAGS  = /D_ATL_XP_TARGETING


# Following is primarily for the benefit of extensions. Tcl 8.5 builds

# Tcl without /DUNICODE, while 8.6 builds with it defined. When building
# an extension, it is advisable (but not mandated) to use the same Windows
# API as the Tcl build. This is accordingly defaulted below. A particular
# extension can override this by pre-definining USE_WIDECHAR_API.
!ifndef USE_WIDECHAR_API
!if $(TCL_VERSION) > 85
USE_WIDECHAR_API = 1
!else
USE_WIDECHAR_API = 0
!endif
!endif

!if $(USE_WIDECHAR_API)
COMPILERFLAGS = $(COMPILERFLAGS) /DUNICODE /D_UNICODE 
!endif

# Like the TEA system only set this non empty for non-Tk extensions
# Note: some extensions use PACKAGE_NAME and others use PACKAGE_TCLNAME
# so we pass both
!if !$(DOING_TCL) && !$(DOING_TK)
PKGNAMEFLAGS = -DPACKAGE_NAME="\"$(PRJ_PACKAGE_TCLNAME)\"" \
               -DPACKAGE_TCLNAME="\"$(PRJ_PACKAGE_TCLNAME)\"" \
               -DPACKAGE_VERSION="\"$(DOTVERSION)\"" \
               -DMODULE_SCOPE=extern 
!endif

# crt picks the C run time based on selected OPTS
!if $(MSVCRT)

!if $(DEBUG) && !$(UNCHECKED)
crt = -MDd
!else
crt = -MD
!endif
!else
!if $(DEBUG) && !$(UNCHECKED)
crt = -MTd
!else
crt = -MT
!endif
!endif

# cdebug includes compiler options for debugging as well as optimization.
!if $(DEBUG)

# In debugging mode, optimizations need to be disabled
cdebug = -Zi -Od $(DEBUGFLAGS)

!else

cdebug = $(OPTIMIZATIONS)
!if $(SYMBOLS)
cdebug = $(cdebug) -Zi
!endif

!endif # $(DEBUG)

# cwarn includes default warning levels.
cwarn = $(WARNINGS)

!if "$(MACHINE)" == "AMD64"
# Disable pointer<->int warnings related to cast between different sizes
# There are a gadzillion of these due to use of ClientData and
# clutter up compiler
# output increasing chance of a real warning getting lost. So disable them.
# Eventually some day, Tcl will be 64-bit clean.
cwarn = $(cwarn) -wd4311 -wd4312
!endif

### Common compiler options that are architecture specific
!if "$(MACHINE)" == "ARM"
carch = -D_ARM_WINAPI_PARTITION_DESKTOP_SDK_AVAILABLE






!else


carch =
!endif

!if $(DEBUG)









# Turn warnings into errors
cwarn = $(cwarn) -WX
!endif

INCLUDES = $(TCL_INCLUDES) $(TK_INCLUDES) $(PRJ_INCLUDES)
!if !$(DOING_TCL) && !$(DOING_TK)
INCLUDES = $(INCLUDES) -I"$(GENERICDIR)" -I"$(WINDIR)" -I"$(COMPATDIR)"
!endif

# These flags are defined roughly in the order of the pre-reform
# rules.vc/makefile.vc to help visually compare that the pre- and
# post-reform build logs

# cflags contains generic flags used for building practically all object files
cflags = -nologo -c $(COMPILERFLAGS) $(carch) $(cwarn) -Fp$(TMP_DIR)^\ $(cdebug)

# appcflags contains $(cflags) and flags for building the application
# object files (e.g. tclsh, or wish) pkgcflags contains $(cflags) plus
# flags used for building shared object files The two differ in the
# BUILD_$(PROJECT) macro which should be defined only for the shared
# library *implementation* and not for its caller interface

appcflags = $(cflags) $(crt) $(INCLUDES) $(TCL_DEFINES) $(PRJ_DEFINES) $(OPTDEFINES) $(USE_STUBS_DEFS)
appcflags_nostubs = $(cflags) $(crt) $(INCLUDES) $(TCL_DEFINES) $(PRJ_DEFINES) $(OPTDEFINES)
pkgcflags = $(appcflags) $(PKGNAMEFLAGS) -DBUILD_$(PROJECT)
pkgcflags_nostubs = $(appcflags_nostubs) $(PKGNAMEFLAGS) -DBUILD_$(PROJECT)

# stubscflags contains $(cflags) plus flags used for building a stubs
# library for the package.  Note: -DSTATIC_BUILD is defined in
# $(OPTDEFINES) only if the OPTS configuration indicates a static
# library. However the stubs library is ALWAYS static hence included
# here irrespective of the OPTS setting.
#
# TBD - tclvfs has a comment that stubs libs should not be compiled with -GL
# without stating why. Tcl itself compiled stubs libs with this flag.
# so we do not remove it from cflags. -GL may prevent extensions
# compiled with one VC version to fail to link against stubs library
# compiled with another VC version. Check for this and fix accordingly.
stubscflags = $(cflags) $(PKGNAMEFLAGS) $(PRJ_DEFINES) $(OPTDEFINES) -Zl -DSTATIC_BUILD $(INCLUDES)

# Link flags 

!if $(DEBUG)
ldebug	= -debug -debugtype:cv
!else
ldebug	= -release -opt:ref -opt:icf,3
!if $(SYMBOLS)
ldebug	= $(ldebug) -debug -debugtype:cv
!endif
!endif

# Note: Profiling is currently only possible with the Visual Studio Enterprise
!if $(PROFILE)
ldebug= $(ldebug) -profile
!endif

### Declarations common to all linker versions 
lflags	= -nologo -machine:$(MACHINE) $(LINKERFLAGS) $(ldebug)

!if $(MSVCRT) && !($(DEBUG) && !$(UNCHECKED)) && $(VCVERSION) >= 1900
lflags	= $(lflags) -nodefaultlib:libucrt.lib
!endif

# Old linkers (Visual C++ 6 in particular) will link for fast loading
# on Win98. Since we do not support Win98 any more, we specify nowin98
# as recommended for NT and later. However, this is only required by
# IX86 on older compilers and only needed if we are not doing a static build.

!if "$(MACHINE)" == "IX86" && !$(STATIC_BUILD)
!if [nmakehlp -l -opt:nowin98 $(LINKER_TESTFLAGS)]
# Align sections for PE size savings.
lflags	= $(lflags) -opt:nowin98
!endif
!endif


dlllflags = $(lflags) -dll
conlflags = $(lflags) -subsystem:console
guilflags = $(lflags) -subsystem:windows

# Libraries that are required for every image.
# Extensions should define any additional libraries with $(PRJ_LIBS)
winlibs   = kernel32.lib advapi32.lib


!if $(NEED_TK)

winlibs = $(winlibs) gdi32.lib user32.lib uxtheme.lib
!endif

# Avoid 'unresolved external symbol __security_cookie' errors.
# c.f. http://support.microsoft.com/?id=894573
!if "$(MACHINE)" == "AMD64"
!if $(VCVERSION) > 1399 && $(VCVERSION) < 1500

winlibs   = $(winlibs) bufferoverflowU.lib
!endif
!endif

baselibs = $(winlibs) $(PRJ_LIBS)


!if $(MSVCRT) && !($(DEBUG) && !$(UNCHECKED)) && $(VCVERSION) >= 1900
baselibs   = $(baselibs) ucrt.lib
!endif

################################################################
# 13. Define standard commands, common make targets and implicit rules

CCPKGCMD = $(cc32) $(pkgcflags) -Fo$(TMP_DIR)^\
CCAPPCMD = $(cc32) $(appcflags) -Fo$(TMP_DIR)^\
CCSTUBSCMD = $(cc32) $(stubscflags) -Fo$(TMP_DIR)^\

LIBCMD = $(lib32) -nologo $(LINKERFLAGS) -out:$@
DLLCMD = $(link32) $(dlllflags) -out:$@ $(baselibs) $(tcllibs) $(tklibs)

CONEXECMD = $(link32) $(conlflags) -out:$@ $(baselibs) $(tcllibs) $(tklibs)
GUIEXECMD = $(link32) $(guilflags) -out:$@ $(baselibs) $(tcllibs) $(tklibs)
RESCMD  = $(rc32) -fo $@ -r -i "$(GENERICDIR)" -i "$(TMP_DIR)" \
	    $(TCL_INCLUDES) \
	    -DDEBUG=$(DEBUG) -d UNCHECKED=$(UNCHECKED) \
	    -DCOMMAVERSION=$(DOTVERSION:.=,),0 \
	    -DDOTVERSION=\"$(DOTVERSION)\" \
	    -DVERSION=\"$(VERSION)\" \
	    -DSUFX=\"$(SUFX)\" \
            -DPROJECT=\"$(PROJECT)\" \
            -DPRJLIBNAME=\"$(PRJLIBNAME)\" 

!ifndef DEFAULT_BUILD_TARGET
DEFAULT_BUILD_TARGET = $(PROJECT)
!endif

default-target: $(DEFAULT_BUILD_TARGET)

default-pkgindex:
	@echo package ifneeded $(PRJ_PACKAGE_TCLNAME) $(DOTVERSION) \
	    [list load [file join $$dir $(PRJLIBNAME)]] > $(OUT_DIR)\pkgIndex.tcl

default-pkgindex-tea:
	@if exist $(ROOT)\pkgIndex.tcl.in nmakehlp -s << $(ROOT)\pkgIndex.tcl.in > $(OUT_DIR)\pkgIndex.tcl
@PACKAGE_VERSION@    $(DOTVERSION)
@PACKAGE_NAME@       $(PRJ_PACKAGE_TCLNAME)
@PACKAGE_TCLNAME@    $(PRJ_PACKAGE_TCLNAME)
@PKG_LIB_FILE@       $(PRJLIBNAME)
<<



default-install: default-install-binaries default-install-libraries

default-install-binaries: $(PRJLIB)
	@echo Installing binaries to '$(SCRIPT_INSTALL_DIR)'
	@if not exist "$(SCRIPT_INSTALL_DIR)" mkdir "$(SCRIPT_INSTALL_DIR)"
	@$(CPY) $(PRJLIB) "$(SCRIPT_INSTALL_DIR)" >NUL

default-install-libraries: $(OUT_DIR)\pkgIndex.tcl
	@echo Installing libraries to '$(SCRIPT_INSTALL_DIR)'
	@if exist $(LIBDIR) $(CPY) $(LIBDIR)\*.tcl "$(SCRIPT_INSTALL_DIR)"
	@echo Installing package index in '$(SCRIPT_INSTALL_DIR)'
	@$(CPY) $(OUT_DIR)\pkgIndex.tcl $(SCRIPT_INSTALL_DIR)

default-install-stubs:
	@echo Installing stubs library to '$(SCRIPT_INSTALL_DIR)'
	@if not exist "$(SCRIPT_INSTALL_DIR)" mkdir "$(SCRIPT_INSTALL_DIR)"
	@$(CPY) $(PRJSTUBLIB) "$(SCRIPT_INSTALL_DIR)" >NUL

default-install-docs-html:
	@echo Installing documentation files to '$(DOC_INSTALL_DIR)'
	@if not exist "$(DOC_INSTALL_DIR)" mkdir "$(DOC_INSTALL_DIR)"
	@if exist $(DOCDIR) for %f in ("$(DOCDIR)\*.html" "$(DOCDIR)\*.css" "$(DOCDIR)\*.png") do @$(COPY) %f "$(DOC_INSTALL_DIR)"

default-install-docs-n:
	@echo Installing documentation files to '$(DOC_INSTALL_DIR)'
	@if not exist "$(DOC_INSTALL_DIR)" mkdir "$(DOC_INSTALL_DIR)"
	@if exist $(DOCDIR) for %f in ("$(DOCDIR)\*.n") do @$(COPY) %f "$(DOC_INSTALL_DIR)"

default-install-demos:
	@echo Installing demos to '$(DEMO_INSTALL_DIR)'
	@if not exist "$(DEMO_INSTALL_DIR)" mkdir "$(DEMO_INSTALL_DIR)"
	@if exist $(DEMODIR) $(CPYDIR) "$(DEMODIR)" "$(DEMO_INSTALL_DIR)"

default-clean:
	@echo Cleaning $(TMP_DIR)\* ...
	@if exist $(TMP_DIR)\nul $(RMDIR) $(TMP_DIR)
	@echo Cleaning $(WINDIR)\nmakehlp.obj, nmakehlp.exe ...
	@if exist $(WINDIR)\nmakehlp.obj del $(WINDIR)\nmakehlp.obj
	@if exist $(WINDIR)\nmakehlp.exe del $(WINDIR)\nmakehlp.exe
	@if exist $(WINDIR)\nmakehlp.out del $(WINDIR)\nmakehlp.out
	@echo Cleaning $(WINDIR)\nmhlp-out.txt ...
	@if exist $(WINDIR)\nmhlp-out.txt del $(WINDIR)\nmhlp-out.txt
	@echo Cleaning $(WINDIR)\_junk.pch ...
	@if exist $(WINDIR)\_junk.pch del $(WINDIR)\_junk.pch
	@echo Cleaning $(WINDIR)\vercl.x, vercl.i ...
	@if exist $(WINDIR)\vercl.x del $(WINDIR)\vercl.x
	@if exist $(WINDIR)\vercl.i del $(WINDIR)\vercl.i
	@echo Cleaning $(WINDIR)\versions.vc, version.vc ...
	@if exist $(WINDIR)\versions.vc del $(WINDIR)\versions.vc
	@if exist $(WINDIR)\version.vc del $(WINDIR)\version.vc

default-hose: default-clean
	@echo Hosing $(OUT_DIR)\* ...
	@if exist $(OUT_DIR)\nul $(RMDIR) $(OUT_DIR)

# Only for backward compatibility
default-distclean: default-hose

default-setup:
	@if not exist $(OUT_DIR)\nul mkdir $(OUT_DIR)
	@if not exist $(TMP_DIR)\nul mkdir $(TMP_DIR)

!if "$(TESTPAT)" != ""
TESTFLAGS = $(TESTFLAGS) -file $(TESTPAT)
!endif

default-test: default-setup $(PROJECT)
	@set TCLLIBPATH=$(OUT_DIR:\=/)
	@if exist $(LIBDIR) for %f in ("$(LIBDIR)\*.tcl") do @$(COPY) %f "$(OUT_DIR)"
	cd "$(TESTDIR)" && $(DEBUGGER) $(TCLSH) all.tcl $(TESTFLAGS)

default-shell: default-setup $(PROJECT)
	@set TCLLIBPATH=$(OUT_DIR:\=/)
	@if exist $(LIBDIR) for %f in ("$(LIBDIR)\*.tcl") do @$(COPY) %f "$(OUT_DIR)"
	$(DEBUGGER) $(TCLSH)

# Generation of Windows version resource 
!ifdef RCFILE

# Note: don't use $** in below rule because there may be other dependencies
# and only the "master" rc must be passed to the resource compiler
$(TMP_DIR)\$(PROJECT).res: $(RCDIR)\$(PROJECT).rc
	$(RESCMD) $(RCDIR)\$(PROJECT).rc

!else

# If parent makefile has not defined a resource definition file,
# we will generate one from standard template.
$(TMP_DIR)\$(PROJECT).res: $(TMP_DIR)\$(PROJECT).rc

$(TMP_DIR)\$(PROJECT).rc:
	@$(COPY) << $(TMP_DIR)\$(PROJECT).rc


#include <winver.h>


VS_VERSION_INFO VERSIONINFO
 FILEVERSION	COMMAVERSION
 PRODUCTVERSION	COMMAVERSION
 FILEFLAGSMASK	0x3fL
#ifdef DEBUG
 FILEFLAGS	VS_FF_DEBUG
#else
 FILEFLAGS	0x0L
#endif
 FILEOS		VOS_NT_WINDOWS32
 FILETYPE	VFT_DLL
 FILESUBTYPE	0x0L
BEGIN
    BLOCK "StringFileInfo"
    BEGIN
        BLOCK "040904b0"
        BEGIN
            VALUE "FileDescription",  "Tcl extension " PROJECT
            VALUE "OriginalFilename", PRJLIBNAME
            VALUE "FileVersion",      DOTVERSION
            VALUE "ProductName",      "Package " PROJECT " for Tcl"
            VALUE "ProductVersion",   DOTVERSION 
        END
    END
    BLOCK "VarFileInfo"
    BEGIN
        VALUE "Translation", 0x409, 1200
    END
END

<<




!endif # ifdef RCFILE

!ifndef DISABLE_IMPLICIT_RULES
DISABLE_IMPLICIT_RULES = 0






!endif

!if !$(DISABLE_IMPLICIT_RULES)
# Implicit rule definitions - only for building library objects. For stubs and
# main application, the master makefile should define explicit rules.

{$(ROOT)}.c{$(TMP_DIR)}.obj::
	$(CCPKGCMD) @<<
$<
<<

{$(WINDIR)}.c{$(TMP_DIR)}.obj::
	$(CCPKGCMD) @<<
$<
<<

{$(GENERICDIR)}.c{$(TMP_DIR)}.obj::
	$(CCPKGCMD) @<<
$<
<<

{$(COMPATDIR)}.c{$(TMP_DIR)}.obj::
	$(CCPKGCMD) @<<
$<
<<

{$(RCDIR)}.rc{$(TMP_DIR)}.res:
	$(RESCMD) $<

{$(WINDIR)}.rc{$(TMP_DIR)}.res:
	$(RESCMD) $<

{$(TMP_DIR)}.rc{$(TMP_DIR)}.res:
	$(RESCMD) $<

.SUFFIXES:
.SUFFIXES:.c .rc

!endif

################################################################
# 14. Sanity check selected options against Tcl build options
# When building an extension, certain configuration options should
# match the ones used when Tcl was built. Here we check and
# warn on a mismatch.
!if ! $(DOING_TCL)

!if $(TCLINSTALL) # Building against an installed Tcl
!if exist("$(_TCLDIR)\lib\nmake\tcl.nmake")
TCLNMAKECONFIG = "$(_TCLDIR)\lib\nmake\tcl.nmake"
!endif
!else # ! $(TCLINSTALL) - building against Tcl source
!if exist("$(OUT_DIR)\tcl.nmake")
TCLNMAKECONFIG = "$(OUT_DIR)\tcl.nmake"
!endif
!endif # TCLINSTALL

!if $(CONFIG_CHECK)
!ifdef TCLNMAKECONFIG
!include $(TCLNMAKECONFIG)






!if defined(CORE_MACHINE) && "$(CORE_MACHINE)" != "$(MACHINE)"
!error ERROR: Build target ($(MACHINE)) does not match the Tcl library architecture ($(CORE_MACHINE)).
!endif
!if defined(CORE_USE_THREAD_ALLOC) && $(CORE_USE_THREAD_ALLOC) != $(USE_THREAD_ALLOC)
!message WARNING: Value of USE_THREAD_ALLOC ($(USE_THREAD_ALLOC)) does not match its Tcl core value ($(CORE_USE_THREAD_ALLOC)).
!endif
!if defined(CORE_DEBUG) && $(CORE_DEBUG) != $(DEBUG)
!message WARNING: Value of DEBUG ($(DEBUG)) does not match its Tcl library configuration ($(DEBUG)).
!endif
!endif

!endif # TCLNMAKECONFIG

!endif # ! $(DOING_TCL)


#----------------------------------------------------------
# Display stats being used.
#----------------------------------------------------------

!if !$(DOING_TCL)
!message *** Building against Tcl at '$(_TCLDIR)'
!endif
!if !$(DOING_TK) && $(NEED_TK)
!message *** Building against Tk at '$(_TKDIR)'
!endif
!message *** Intermediate directory will be '$(TMP_DIR)'
!message *** Output directory will be '$(OUT_DIR)'
!message *** Installation, if selected, will be in '$(_INSTALLDIR)'
!message *** Suffix for binaries will be '$(SUFX)'

!message *** Compiler version $(VCVER). Target $(MACHINE), host $(NATIVE_ARCH).



!endif # ifdef _RULES_VC

#------------------------------------------------------------- -*- makefile -*-
# targets.vc --
#
# Part of the nmake based build system for Tcl and its extensions.
# This file defines some standard targets for the convenience of extensions
# and can be optionally included by the extension makefile.
# See TIP 477 (https://core.tcl.tk/tips/doc/trunk/tip/477.md) for docs.

$(PROJECT): setup pkgindex $(PRJLIB)

!ifdef PRJ_STUBOBJS
$(PROJECT): $(PRJSTUBLIB)
$(PRJSTUBLIB): $(PRJ_STUBOBJS)
	$(LIBCMD) $**

$(PRJ_STUBOBJS):
	$(CCSTUBSCMD) %s
!endif # PRJ_STUBOBJS

!ifdef PRJ_MANIFEST
$(PROJECT): $(PRJLIB).manifest
$(PRJLIB).manifest: $(PRJ_MANIFEST)
	@nmakehlp -s << $** >$@
@MACHINE@	  $(MACHINE:IX86=X86)
<<
!endif

!if "$(PROJECT)" != "tcl" && "$(PROJECT)" != "tk"
$(PRJLIB): $(PRJ_OBJS) $(RESFILE)
!if $(STATIC_BUILD)
       $(LIBCMD) $**
!else
       $(DLLCMD) $**
       $(_VC_MANIFEST_EMBED_DLL)
!endif
       -@del $*.exp
!endif

!if "$(PRJ_HEADERS)" != "" && "$(PRJ_OBJS)" != ""
$(PRJ_OBJS): $(PRJ_HEADERS)
!endif

# If parent makefile has defined stub objects, add their installation
# to the default install
!if "$(PRJ_STUBOBJS)" != ""
default-install: default-install-stubs
!endif

# Unlike the other default targets, these cannot be in rules.vc because
# the executed command depends on existence of macro PRJ_HEADERS_PUBLIC
# that the parent makefile will not define until after including rules-ext.vc
!if "$(PRJ_HEADERS_PUBLIC)" != ""
default-install: default-install-headers
default-install-headers:
	@echo Installing headers to '$(INCLUDE_INSTALL_DIR)'
	@for %f in ($(PRJ_HEADERS_PUBLIC)) do @$(COPY) %f "$(INCLUDE_INSTALL_DIR)"
!endif

!if "$(DISABLE_STANDARD_TARGETS)" == ""
DISABLE_STANDARD_TARGETS = 0
!endif

!if "$(DISABLE_TARGET_setup)" == ""
DISABLE_TARGET_setup = 0
!endif
!if "$(DISABLE_TARGET_install)" == ""
DISABLE_TARGET_install = 0
!endif
!if "$(DISABLE_TARGET_clean)" == ""
DISABLE_TARGET_clean = 0
!endif
!if "$(DISABLE_TARGET_test)" == ""
DISABLE_TARGET_test = 0
!endif
!if "$(DISABLE_TARGET_shell)" == ""
DISABLE_TARGET_shell = 0
!endif

!if !$(DISABLE_STANDARD_TARGETS)
!if !$(DISABLE_TARGET_setup)
setup: default-setup
!endif
!if !$(DISABLE_TARGET_install)
install: default-install
!endif
!if !$(DISABLE_TARGET_clean)
clean: default-clean
realclean: hose
hose: default-hose
distclean: realclean default-distclean
!endif
!if !$(DISABLE_TARGET_test)
test: default-test
!endif
!if !$(DISABLE_TARGET_shell)
shell: default-shell
!endif
!endif # DISABLE_STANDARD_TARGETS