Merge commit '98acd3f494b28ddd8c345a2bb9311e41e2d56ddd' as 'tcl8.6'

1 files changed, 2665 insertions, 0 deletions

diff --git a/tcl8.6/generic/tcl.h b/tcl8.6/generic/tcl.h
new file mode 100644
index 0000000..3037ceb
--- /dev/null
+++ b/tcl8.6/generic/tcl.h
@@ -0,0 +1,2665 @@
+/*
+ * tcl.h --
+ *
+ *	This header file describes the externally-visible facilities of the
+ *	Tcl interpreter.
+ *
+ * Copyright (c) 1987-1994 The Regents of the University of California.
+ * Copyright (c) 1993-1996 Lucent Technologies.
+ * Copyright (c) 1994-1998 Sun Microsystems, Inc.
+ * Copyright (c) 1998-2000 by Scriptics Corporation.
+ * Copyright (c) 2002 by Kevin B. Kenny.  All rights reserved.
+ *
+ * See the file "license.terms" for information on usage and redistribution of
+ * this file, and for a DISCLAIMER OF ALL WARRANTIES.
+ */
+
+#ifndef _TCL
+#define _TCL
+
+/*
+ * For C++ compilers, use extern "C"
+ */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+ * The following defines are used to indicate the various release levels.
+ */
+
+#define TCL_ALPHA_RELEASE	0
+#define TCL_BETA_RELEASE	1
+#define TCL_FINAL_RELEASE	2
+
+/*
+ * When version numbers change here, must also go into the following files and
+ * update the version numbers:
+ *
+ * library/init.tcl	(1 LOC patch)
+ * unix/configure.in	(2 LOC Major, 2 LOC minor, 1 LOC patch)
+ * win/configure.in	(as above)
+ * win/tcl.m4		(not patchlevel)
+ * win/makefile.bc	(not patchlevel) 2 LOC
+ * README		(sections 0 and 2, with and without separator)
+ * macosx/Tcl.pbproj/project.pbxproj (not patchlevel) 1 LOC
+ * macosx/Tcl.pbproj/default.pbxuser (not patchlevel) 1 LOC
+ * macosx/Tcl.xcode/project.pbxproj (not patchlevel) 2 LOC
+ * macosx/Tcl.xcode/default.pbxuser (not patchlevel) 1 LOC
+ * macosx/Tcl-Common.xcconfig (not patchlevel) 1 LOC
+ * win/README		(not patchlevel) (sections 0 and 2)
+ * unix/tcl.spec	(1 LOC patch)
+ * tools/tcl.hpj.in	(not patchlevel, for windows installer)
+ */
+
+#define TCL_MAJOR_VERSION   8
+#define TCL_MINOR_VERSION   6
+#define TCL_RELEASE_LEVEL   TCL_FINAL_RELEASE
+#define TCL_RELEASE_SERIAL  6
+
+#define TCL_VERSION	    "8.6"
+#define TCL_PATCH_LEVEL	    "8.6.6"
+
+/*
+ *----------------------------------------------------------------------------
+ * The following definitions set up the proper options for Windows compilers.
+ * We use this method because there is no autoconf equivalent.
+ */
+
+#ifdef _WIN32
+#   ifndef __WIN32__
+#	define __WIN32__
+#   endif
+#   ifndef WIN32
+#	define WIN32
+#   endif
+#endif
+
+/*
+ * Utility macros: STRINGIFY takes an argument and wraps it in "" (double
+ * quotation marks), JOIN joins two arguments.
+ */
+
+#ifndef STRINGIFY
+#  define STRINGIFY(x) STRINGIFY1(x)
+#  define STRINGIFY1(x) #x
+#endif
+#ifndef JOIN
+#  define JOIN(a,b) JOIN1(a,b)
+#  define JOIN1(a,b) a##b
+#endif
+
+/*
+ * A special definition used to allow this header file to be included from
+ * windows resource files so that they can obtain version information.
+ * RC_INVOKED is defined by default by the windows RC tool.
+ *
+ * Resource compilers don't like all the C stuff, like typedefs and function
+ * declarations, that occur below, so block them out.
+ */
+
+#ifndef RC_INVOKED
+
+/*
+ * Special macro to define mutexes, that doesn't do anything if we are not
+ * using threads.
+ */
+
+#ifdef TCL_THREADS
+#define TCL_DECLARE_MUTEX(name) static Tcl_Mutex name;
+#else
+#define TCL_DECLARE_MUTEX(name)
+#endif
+
+/*
+ * Tcl's public routine Tcl_FSSeek() uses the values SEEK_SET, SEEK_CUR, and
+ * SEEK_END, all #define'd by stdio.h .
+ *
+ * Also, many extensions need stdio.h, and they've grown accustomed to tcl.h
+ * providing it for them rather than #include-ing it themselves as they
+ * should, so also for their sake, we keep the #include to be consistent with
+ * prior Tcl releases.
+ */
+
+#include <stdio.h>
+
+/*
+ *----------------------------------------------------------------------------
+ * Support for functions with a variable number of arguments.
+ *
+ * The following TCL_VARARGS* macros are to support old extensions
+ * written for older versions of Tcl where the macros permitted
+ * support for the varargs.h system as well as stdarg.h .
+ *
+ * New code should just directly be written to use stdarg.h conventions.
+ */
+
+#include <stdarg.h>
+#ifndef TCL_NO_DEPRECATED
+#    define TCL_VARARGS(type, name) (type name, ...)
+#    define TCL_VARARGS_DEF(type, name) (type name, ...)
+#    define TCL_VARARGS_START(type, name, list) (va_start(list, name), name)
+#endif
+#if defined(__GNUC__) && (__GNUC__ > 2)
+#   define TCL_FORMAT_PRINTF(a,b) __attribute__ ((__format__ (__printf__, a, b)))
+#   define TCL_NORETURN __attribute__ ((noreturn))
+#   if defined(BUILD_tcl) || defined(BUILD_tk)
+#	define TCL_NORETURN1 __attribute__ ((noreturn))
+#   else
+#	define TCL_NORETURN1 /* nothing */
+#   endif
+#else
+#   define TCL_FORMAT_PRINTF(a,b)
+#   if defined(_MSC_VER) && (_MSC_VER >= 1310)
+#	define TCL_NORETURN _declspec(noreturn)
+#   else
+#	define TCL_NORETURN /* nothing */
+#   endif
+#   define TCL_NORETURN1 /* nothing */
+#endif
+
+/*
+ * Allow a part of Tcl's API to be explicitly marked as deprecated.
+ *
+ * Used to make TIP 330/336 generate moans even if people use the
+ * compatibility macros. Change your code, guys! We won't support you forever.
+ */
+
+#if defined(__GNUC__) && ((__GNUC__ >= 4) || ((__GNUC__ == 3) && (__GNUC_MINOR__ >= 1)))
+#   if (__GNUC__ > 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 5))
+#	define TCL_DEPRECATED_API(msg)	__attribute__ ((__deprecated__ (msg)))
+#   else
+#	define TCL_DEPRECATED_API(msg)	__attribute__ ((__deprecated__))
+#   endif
+#else
+#   define TCL_DEPRECATED_API(msg)	/* nothing portable */
+#endif
+
+/*
+ *----------------------------------------------------------------------------
+ * Macros used to declare a function to be exported by a DLL. Used by Windows,
+ * maps to no-op declarations on non-Windows systems. The default build on
+ * windows is for a DLL, which causes the DLLIMPORT and DLLEXPORT macros to be
+ * nonempty. To build a static library, the macro STATIC_BUILD should be
+ * defined.
+ *
+ * Note: when building static but linking dynamically to MSVCRT we must still
+ *       correctly decorate the C library imported function.  Use CRTIMPORT
+ *       for this purpose.  _DLL is defined by the compiler when linking to
+ *       MSVCRT.
+ */
+
+#if (defined(_WIN32) && (defined(_MSC_VER) || (defined(__BORLANDC__) && (__BORLANDC__ >= 0x0550)) || defined(__LCC__) || defined(__WATCOMC__) || (defined(__GNUC__) && defined(__declspec))))
+#   define HAVE_DECLSPEC 1
+#   ifdef STATIC_BUILD
+#       define DLLIMPORT
+#       define DLLEXPORT
+#       ifdef _DLL
+#           define CRTIMPORT __declspec(dllimport)
+#       else
+#           define CRTIMPORT
+#       endif
+#   else
+#       define DLLIMPORT __declspec(dllimport)
+#       define DLLEXPORT __declspec(dllexport)
+#       define CRTIMPORT __declspec(dllimport)
+#   endif
+#else
+#   define DLLIMPORT
+#   if defined(__GNUC__) && __GNUC__ > 3
+#       define DLLEXPORT __attribute__ ((visibility("default")))
+#   else
+#       define DLLEXPORT
+#   endif
+#   define CRTIMPORT
+#endif
+
+/*
+ * These macros are used to control whether functions are being declared for
+ * import or export. If a function is being declared while it is being built
+ * to be included in a shared library, then it should have the DLLEXPORT
+ * storage class. If is being declared for use by a module that is going to
+ * link against the shared library, then it should have the DLLIMPORT storage
+ * class. If the symbol is beind declared for a static build or for use from a
+ * stub library, then the storage class should be empty.
+ *
+ * The convention is that a macro called BUILD_xxxx, where xxxx is the name of
+ * a library we are building, is set on the compile line for sources that are
+ * to be placed in the library. When this macro is set, the storage class will
+ * be set to DLLEXPORT. At the end of the header file, the storage class will
+ * be reset to DLLIMPORT.
+ */
+
+#undef TCL_STORAGE_CLASS
+#ifdef BUILD_tcl
+#   define TCL_STORAGE_CLASS DLLEXPORT
+#else
+#   ifdef USE_TCL_STUBS
+#      define TCL_STORAGE_CLASS
+#   else
+#      define TCL_STORAGE_CLASS DLLIMPORT
+#   endif
+#endif
+
+/*
+ * The following _ANSI_ARGS_ macro is to support old extensions
+ * written for older versions of Tcl where it permitted support
+ * for compilers written in the pre-prototype era of C.
+ *
+ * New code should use prototypes.
+ */
+
+#ifndef TCL_NO_DEPRECATED
+#   undef _ANSI_ARGS_
+#   define _ANSI_ARGS_(x)	x
+#endif
+
+/*
+ * Definitions that allow this header file to be used either with or without
+ * ANSI C features.
+ */
+
+#ifndef INLINE
+#   define INLINE
+#endif
+
+#ifdef NO_CONST
+#   ifndef const
+#      define const
+#   endif
+#endif
+#ifndef CONST
+#   define CONST const
+#endif
+
+#ifdef USE_NON_CONST
+#   ifdef USE_COMPAT_CONST
+#      error define at most one of USE_NON_CONST and USE_COMPAT_CONST
+#   endif
+#   define CONST84
+#   define CONST84_RETURN
+#else
+#   ifdef USE_COMPAT_CONST
+#      define CONST84
+#      define CONST84_RETURN const
+#   else
+#      define CONST84 const
+#      define CONST84_RETURN const
+#   endif
+#endif
+
+#ifndef CONST86
+#      define CONST86 CONST84
+#endif
+
+/*
+ * Make sure EXTERN isn't defined elsewhere.
+ */
+
+#ifdef EXTERN
+#   undef EXTERN
+#endif /* EXTERN */
+
+#ifdef __cplusplus
+#   define EXTERN extern "C" TCL_STORAGE_CLASS
+#else
+#   define EXTERN extern TCL_STORAGE_CLASS
+#endif
+
+/*
+ *----------------------------------------------------------------------------
+ * The following code is copied from winnt.h. If we don't replicate it here,
+ * then <windows.h> can't be included after tcl.h, since tcl.h also defines
+ * VOID. This block is skipped under Cygwin and Mingw.
+ */
+
+#if defined(_WIN32) && !defined(HAVE_WINNT_IGNORE_VOID)
+#ifndef VOID
+#define VOID void
+typedef char CHAR;
+typedef short SHORT;
+typedef long LONG;
+#endif
+#endif /* _WIN32 && !HAVE_WINNT_IGNORE_VOID */
+
+/*
+ * Macro to use instead of "void" for arguments that must have type "void *"
+ * in ANSI C; maps them to type "char *" in non-ANSI systems.
+ */
+
+#ifndef __VXWORKS__
+#   ifndef NO_VOID
+#	define VOID void
+#   else
+#	define VOID char
+#   endif
+#endif
+
+/*
+ * Miscellaneous declarations.
+ */
+
+#ifndef _CLIENTDATA
+#   ifndef NO_VOID
+	typedef void *ClientData;
+#   else
+	typedef int *ClientData;
+#   endif
+#   define _CLIENTDATA
+#endif
+
+/*
+ * Darwin specific configure overrides (to support fat compiles, where
+ * configure runs only once for multiple architectures):
+ */
+
+#ifdef __APPLE__
+#   ifdef __LP64__
+#	undef TCL_WIDE_INT_TYPE
+#	define TCL_WIDE_INT_IS_LONG 1
+#	define TCL_CFG_DO64BIT 1
+#    else /* !__LP64__ */
+#	define TCL_WIDE_INT_TYPE long long
+#	undef TCL_WIDE_INT_IS_LONG
+#	undef TCL_CFG_DO64BIT
+#    endif /* __LP64__ */
+#    undef HAVE_STRUCT_STAT64
+#endif /* __APPLE__ */
+
+/*
+ * Define Tcl_WideInt to be a type that is (at least) 64-bits wide, and define
+ * Tcl_WideUInt to be the unsigned variant of that type (assuming that where
+ * we have one, we can have the other.)
+ *
+ * Also defines the following macros:
+ * TCL_WIDE_INT_IS_LONG - if wide ints are really longs (i.e. we're on a real
+ *	64-bit system.)
+ * Tcl_WideAsLong - forgetful converter from wideInt to long.
+ * Tcl_LongAsWide - sign-extending converter from long to wideInt.
+ * Tcl_WideAsDouble - converter from wideInt to double.
+ * Tcl_DoubleAsWide - converter from double to wideInt.
+ *
+ * The following invariant should hold for any long value 'longVal':
+ *	longVal == Tcl_WideAsLong(Tcl_LongAsWide(longVal))
+ *
+ * Note on converting between Tcl_WideInt and strings. This implementation (in
+ * tclObj.c) depends on the function
+ * sprintf(...,"%" TCL_LL_MODIFIER "d",...).
+ */
+
+#if !defined(TCL_WIDE_INT_TYPE)&&!defined(TCL_WIDE_INT_IS_LONG)
+#   if defined(_WIN32)
+#      define TCL_WIDE_INT_TYPE __int64
+#      ifdef __BORLANDC__
+#         define TCL_LL_MODIFIER	"L"
+#      else /* __BORLANDC__ */
+#         define TCL_LL_MODIFIER	"I64"
+#      endif /* __BORLANDC__ */
+#   elif defined(__GNUC__)
+#      define TCL_WIDE_INT_TYPE long long
+#      define TCL_LL_MODIFIER	"ll"
+#   else /* ! _WIN32 && ! __GNUC__ */
+/*
+ * Don't know what platform it is and configure hasn't discovered what is
+ * going on for us. Try to guess...
+ */
+#      include <limits.h>
+#      if (INT_MAX < LONG_MAX)
+#         define TCL_WIDE_INT_IS_LONG	1
+#      else
+#         define TCL_WIDE_INT_TYPE long long
+#      endif
+#   endif /* _WIN32 */
+#endif /* !TCL_WIDE_INT_TYPE & !TCL_WIDE_INT_IS_LONG */
+#ifdef TCL_WIDE_INT_IS_LONG
+#   undef TCL_WIDE_INT_TYPE
+#   define TCL_WIDE_INT_TYPE	long
+#endif /* TCL_WIDE_INT_IS_LONG */
+
+typedef TCL_WIDE_INT_TYPE		Tcl_WideInt;
+typedef unsigned TCL_WIDE_INT_TYPE	Tcl_WideUInt;
+
+#ifdef TCL_WIDE_INT_IS_LONG
+#   define Tcl_WideAsLong(val)		((long)(val))
+#   define Tcl_LongAsWide(val)		((long)(val))
+#   define Tcl_WideAsDouble(val)	((double)((long)(val)))
+#   define Tcl_DoubleAsWide(val)	((long)((double)(val)))
+#   ifndef TCL_LL_MODIFIER
+#      define TCL_LL_MODIFIER		"l"
+#   endif /* !TCL_LL_MODIFIER */
+#else /* TCL_WIDE_INT_IS_LONG */
+/*
+ * The next short section of defines are only done when not running on Windows
+ * or some other strange platform.
+ */
+#   ifndef TCL_LL_MODIFIER
+#      define TCL_LL_MODIFIER		"ll"
+#   endif /* !TCL_LL_MODIFIER */
+#   define Tcl_WideAsLong(val)		((long)((Tcl_WideInt)(val)))
+#   define Tcl_LongAsWide(val)		((Tcl_WideInt)((long)(val)))
+#   define Tcl_WideAsDouble(val)	((double)((Tcl_WideInt)(val)))
+#   define Tcl_DoubleAsWide(val)	((Tcl_WideInt)((double)(val)))
+#endif /* TCL_WIDE_INT_IS_LONG */
+
+#if defined(_WIN32)
+#   ifdef __BORLANDC__
+	typedef struct stati64 Tcl_StatBuf;
+#   elif defined(_WIN64)
+	typedef struct __stat64 Tcl_StatBuf;
+#   elif (defined(_MSC_VER) && (_MSC_VER < 1400)) || defined(_USE_32BIT_TIME_T)
+	typedef struct _stati64	Tcl_StatBuf;
+#   else
+	typedef struct _stat32i64 Tcl_StatBuf;
+#   endif /* _MSC_VER < 1400 */
+#elif defined(__CYGWIN__)
+    typedef struct {
+	dev_t st_dev;
+	unsigned short st_ino;
+	unsigned short st_mode;
+	short st_nlink;
+	short st_uid;
+	short st_gid;
+	/* Here is a 2-byte gap */
+	dev_t st_rdev;
+	/* Here is a 4-byte gap */
+	long long st_size;
+	struct {long tv_sec;} st_atim;
+	struct {long tv_sec;} st_mtim;
+	struct {long tv_sec;} st_ctim;
+	/* Here is a 4-byte gap */
+    } Tcl_StatBuf;
+#elif defined(HAVE_STRUCT_STAT64) && !defined(__APPLE__)
+    typedef struct stat64 Tcl_StatBuf;
+#else
+    typedef struct stat Tcl_StatBuf;
+#endif
+
+/*
+ *----------------------------------------------------------------------------
+ * Data structures defined opaquely in this module. The definitions below just
+ * provide dummy types. A few fields are made visible in Tcl_Interp
+ * structures, namely those used for returning a string result from commands.
+ * Direct access to the result field is discouraged in Tcl 8.0. The
+ * interpreter result is either an object or a string, and the two values are
+ * kept consistent unless some C code sets interp->result directly.
+ * Programmers should use either the function Tcl_GetObjResult() or
+ * Tcl_GetStringResult() to read the interpreter's result. See the SetResult
+ * man page for details.
+ *
+ * Note: any change to the Tcl_Interp definition below must be mirrored in the
+ * "real" definition in tclInt.h.
+ *
+ * Note: Tcl_ObjCmdProc functions do not directly set result and freeProc.
+ * Instead, they set a Tcl_Obj member in the "real" structure that can be
+ * accessed with Tcl_GetObjResult() and Tcl_SetObjResult().
+ */
+
+typedef struct Tcl_Interp
+#ifndef TCL_NO_DEPRECATED
+{
+    /* TIP #330: Strongly discourage extensions from using the string
+     * result. */
+#ifdef USE_INTERP_RESULT
+    char *result TCL_DEPRECATED_API("use Tcl_GetStringResult/Tcl_SetResult");
+				/* If the last command returned a string
+				 * result, this points to it. */
+    void (*freeProc) (char *blockPtr)
+	    TCL_DEPRECATED_API("use Tcl_GetStringResult/Tcl_SetResult");
+				/* Zero means the string result is statically
+				 * allocated. TCL_DYNAMIC means it was
+				 * allocated with ckalloc and should be freed
+				 * with ckfree. Other values give the address
+				 * of function to invoke to free the result.
+				 * Tcl_Eval must free it before executing next
+				 * command. */
+#else
+    char *resultDontUse; /* Don't use in extensions! */
+    void (*freeProcDontUse) (char *); /* Don't use in extensions! */
+#endif
+#ifdef USE_INTERP_ERRORLINE
+    int errorLine TCL_DEPRECATED_API("use Tcl_GetErrorLine/Tcl_SetErrorLine");
+				/* When TCL_ERROR is returned, this gives the
+				 * line number within the command where the
+				 * error occurred (1 if first line). */
+#else
+    int errorLineDontUse; /* Don't use in extensions! */
+#endif
+}
+#endif /* TCL_NO_DEPRECATED */
+Tcl_Interp;
+
+typedef struct Tcl_AsyncHandler_ *Tcl_AsyncHandler;
+typedef struct Tcl_Channel_ *Tcl_Channel;
+typedef struct Tcl_ChannelTypeVersion_ *Tcl_ChannelTypeVersion;
+typedef struct Tcl_Command_ *Tcl_Command;
+typedef struct Tcl_Condition_ *Tcl_Condition;
+typedef struct Tcl_Dict_ *Tcl_Dict;
+typedef struct Tcl_EncodingState_ *Tcl_EncodingState;
+typedef struct Tcl_Encoding_ *Tcl_Encoding;
+typedef struct Tcl_Event Tcl_Event;
+typedef struct Tcl_InterpState_ *Tcl_InterpState;
+typedef struct Tcl_LoadHandle_ *Tcl_LoadHandle;
+typedef struct Tcl_Mutex_ *Tcl_Mutex;
+typedef struct Tcl_Pid_ *Tcl_Pid;
+typedef struct Tcl_RegExp_ *Tcl_RegExp;
+typedef struct Tcl_ThreadDataKey_ *Tcl_ThreadDataKey;
+typedef struct Tcl_ThreadId_ *Tcl_ThreadId;
+typedef struct Tcl_TimerToken_ *Tcl_TimerToken;
+typedef struct Tcl_Trace_ *Tcl_Trace;
+typedef struct Tcl_Var_ *Tcl_Var;
+typedef struct Tcl_ZLibStream_ *Tcl_ZlibStream;
+
+/*
+ *----------------------------------------------------------------------------
+ * Definition of the interface to functions implementing threads. A function
+ * following this definition is given to each call of 'Tcl_CreateThread' and
+ * will be called as the main fuction of the new thread created by that call.
+ */
+
+#if defined _WIN32
+typedef unsigned (__stdcall Tcl_ThreadCreateProc) (ClientData clientData);
+#else
+typedef void (Tcl_ThreadCreateProc) (ClientData clientData);
+#endif
+
+/*
+ * Threading function return types used for abstracting away platform
+ * differences when writing a Tcl_ThreadCreateProc. See the NewThread function
+ * in generic/tclThreadTest.c for it's usage.
+ */
+
+#if defined _WIN32
+#   define Tcl_ThreadCreateType		unsigned __stdcall
+#   define TCL_THREAD_CREATE_RETURN	return 0
+#else
+#   define Tcl_ThreadCreateType		void
+#   define TCL_THREAD_CREATE_RETURN
+#endif
+
+/*
+ * Definition of values for default stacksize and the possible flags to be
+ * given to Tcl_CreateThread.
+ */
+
+#define TCL_THREAD_STACK_DEFAULT (0)    /* Use default size for stack. */
+#define TCL_THREAD_NOFLAGS	 (0000) /* Standard flags, default
+					 * behaviour. */
+#define TCL_THREAD_JOINABLE	 (0001) /* Mark the thread as joinable. */
+
+/*
+ * Flag values passed to Tcl_StringCaseMatch.
+ */
+
+#define TCL_MATCH_NOCASE	(1<<0)
+
+/*
+ * Flag values passed to Tcl_GetRegExpFromObj.
+ */
+
+#define	TCL_REG_BASIC		000000	/* BREs (convenience). */
+#define	TCL_REG_EXTENDED	000001	/* EREs. */
+#define	TCL_REG_ADVF		000002	/* Advanced features in EREs. */
+#define	TCL_REG_ADVANCED	000003	/* AREs (which are also EREs). */
+#define	TCL_REG_QUOTE		000004	/* No special characters, none. */
+#define	TCL_REG_NOCASE		000010	/* Ignore case. */
+#define	TCL_REG_NOSUB		000020	/* Don't care about subexpressions. */
+#define	TCL_REG_EXPANDED	000040	/* Expanded format, white space &
+					 * comments. */
+#define	TCL_REG_NLSTOP		000100  /* \n doesn't match . or [^ ] */
+#define	TCL_REG_NLANCH		000200  /* ^ matches after \n, $ before. */
+#define	TCL_REG_NEWLINE		000300  /* Newlines are line terminators. */
+#define	TCL_REG_CANMATCH	001000  /* Report details on partial/limited
+					 * matches. */
+
+/*
+ * Flags values passed to Tcl_RegExpExecObj.
+ */
+
+#define	TCL_REG_NOTBOL	0001	/* Beginning of string does not match ^.  */
+#define	TCL_REG_NOTEOL	0002	/* End of string does not match $. */
+
+/*
+ * Structures filled in by Tcl_RegExpInfo. Note that all offset values are
+ * relative to the start of the match string, not the beginning of the entire
+ * string.
+ */
+
+typedef struct Tcl_RegExpIndices {
+    long start;			/* Character offset of first character in
+				 * match. */
+    long end;			/* Character offset of first character after
+				 * the match. */
+} Tcl_RegExpIndices;
+
+typedef struct Tcl_RegExpInfo {
+    int nsubs;			/* Number of subexpressions in the compiled
+				 * expression. */
+    Tcl_RegExpIndices *matches;	/* Array of nsubs match offset pairs. */
+    long extendStart;		/* The offset at which a subsequent match
+				 * might begin. */
+    long reserved;		/* Reserved for later use. */
+} Tcl_RegExpInfo;
+
+/*
+ * Picky compilers complain if this typdef doesn't appear before the struct's
+ * reference in tclDecls.h.
+ */
+
+typedef Tcl_StatBuf *Tcl_Stat_;
+typedef struct stat *Tcl_OldStat_;
+
+/*
+ *----------------------------------------------------------------------------
+ * When a TCL command returns, the interpreter contains a result from the
+ * command. Programmers are strongly encouraged to use one of the functions
+ * Tcl_GetObjResult() or Tcl_GetStringResult() to read the interpreter's
+ * result. See the SetResult man page for details. Besides this result, the
+ * command function returns an integer code, which is one of the following:
+ *
+ * TCL_OK		Command completed normally; the interpreter's result
+ *			contains the command's result.
+ * TCL_ERROR		The command couldn't be completed successfully; the
+ *			interpreter's result describes what went wrong.
+ * TCL_RETURN		The command requests that the current function return;
+ *			the interpreter's result contains the function's
+ *			return value.
+ * TCL_BREAK		The command requests that the innermost loop be
+ *			exited; the interpreter's result is meaningless.
+ * TCL_CONTINUE		Go on to the next iteration of the current loop; the
+ *			interpreter's result is meaningless.
+ */
+
+#define TCL_OK			0
+#define TCL_ERROR		1
+#define TCL_RETURN		2
+#define TCL_BREAK		3
+#define TCL_CONTINUE		4
+
+#define TCL_RESULT_SIZE		200
+
+/*
+ *----------------------------------------------------------------------------
+ * Flags to control what substitutions are performed by Tcl_SubstObj():
+ */
+
+#define TCL_SUBST_COMMANDS	001
+#define TCL_SUBST_VARIABLES	002
+#define TCL_SUBST_BACKSLASHES	004
+#define TCL_SUBST_ALL		007
+
+/*
+ * Argument descriptors for math function callbacks in expressions:
+ */
+
+typedef enum {
+    TCL_INT, TCL_DOUBLE, TCL_EITHER, TCL_WIDE_INT
+} Tcl_ValueType;
+
+typedef struct Tcl_Value {
+    Tcl_ValueType type;		/* Indicates intValue or doubleValue is valid,
+				 * or both. */
+    long intValue;		/* Integer value. */
+    double doubleValue;		/* Double-precision floating value. */
+    Tcl_WideInt wideValue;	/* Wide (min. 64-bit) integer value. */
+} Tcl_Value;
+
+/*
+ * Forward declaration of Tcl_Obj to prevent an error when the forward
+ * reference to Tcl_Obj is encountered in the function types declared below.
+ */
+
+struct Tcl_Obj;
+
+/*
+ *----------------------------------------------------------------------------
+ * Function types defined by Tcl:
+ */
+
+typedef int (Tcl_AppInitProc) (Tcl_Interp *interp);
+typedef int (Tcl_AsyncProc) (ClientData clientData, Tcl_Interp *interp,
+	int code);
+typedef void (Tcl_ChannelProc) (ClientData clientData, int mask);
+typedef void (Tcl_CloseProc) (ClientData data);
+typedef void (Tcl_CmdDeleteProc) (ClientData clientData);
+typedef int (Tcl_CmdProc) (ClientData clientData, Tcl_Interp *interp,
+	int argc, CONST84 char *argv[]);
+typedef void (Tcl_CmdTraceProc) (ClientData clientData, Tcl_Interp *interp,
+	int level, char *command, Tcl_CmdProc *proc,
+	ClientData cmdClientData, int argc, CONST84 char *argv[]);
+typedef int (Tcl_CmdObjTraceProc) (ClientData clientData, Tcl_Interp *interp,
+	int level, const char *command, Tcl_Command commandInfo, int objc,
+	struct Tcl_Obj *const *objv);
+typedef void (Tcl_CmdObjTraceDeleteProc) (ClientData clientData);
+typedef void (Tcl_DupInternalRepProc) (struct Tcl_Obj *srcPtr,
+	struct Tcl_Obj *dupPtr);
+typedef int (Tcl_EncodingConvertProc) (ClientData clientData, const char *src,
+	int srcLen, int flags, Tcl_EncodingState *statePtr, char *dst,
+	int dstLen, int *srcReadPtr, int *dstWrotePtr, int *dstCharsPtr);
+typedef void (Tcl_EncodingFreeProc) (ClientData clientData);
+typedef int (Tcl_EventProc) (Tcl_Event *evPtr, int flags);
+typedef void (Tcl_EventCheckProc) (ClientData clientData, int flags);
+typedef int (Tcl_EventDeleteProc) (Tcl_Event *evPtr, ClientData clientData);
+typedef void (Tcl_EventSetupProc) (ClientData clientData, int flags);
+typedef void (Tcl_ExitProc) (ClientData clientData);
+typedef void (Tcl_FileProc) (ClientData clientData, int mask);
+typedef void (Tcl_FileFreeProc) (ClientData clientData);
+typedef void (Tcl_FreeInternalRepProc) (struct Tcl_Obj *objPtr);
+typedef void (Tcl_FreeProc) (char *blockPtr);
+typedef void (Tcl_IdleProc) (ClientData clientData);
+typedef void (Tcl_InterpDeleteProc) (ClientData clientData,
+	Tcl_Interp *interp);
+typedef int (Tcl_MathProc) (ClientData clientData, Tcl_Interp *interp,
+	Tcl_Value *args, Tcl_Value *resultPtr);
+typedef void (Tcl_NamespaceDeleteProc) (ClientData clientData);
+typedef int (Tcl_ObjCmdProc) (ClientData clientData, Tcl_Interp *interp,
+	int objc, struct Tcl_Obj *const *objv);
+typedef int (Tcl_PackageInitProc) (Tcl_Interp *interp);
+typedef int (Tcl_PackageUnloadProc) (Tcl_Interp *interp, int flags);
+typedef void (Tcl_PanicProc) (const char *format, ...);
+typedef void (Tcl_TcpAcceptProc) (ClientData callbackData, Tcl_Channel chan,
+	char *address, int port);
+typedef void (Tcl_TimerProc) (ClientData clientData);
+typedef int (Tcl_SetFromAnyProc) (Tcl_Interp *interp, struct Tcl_Obj *objPtr);
+typedef void (Tcl_UpdateStringProc) (struct Tcl_Obj *objPtr);
+typedef char * (Tcl_VarTraceProc) (ClientData clientData, Tcl_Interp *interp,
+	CONST84 char *part1, CONST84 char *part2, int flags);
+typedef void (Tcl_CommandTraceProc) (ClientData clientData, Tcl_Interp *interp,
+	const char *oldName, const char *newName, int flags);
+typedef void (Tcl_CreateFileHandlerProc) (int fd, int mask, Tcl_FileProc *proc,
+	ClientData clientData);
+typedef void (Tcl_DeleteFileHandlerProc) (int fd);
+typedef void (Tcl_AlertNotifierProc) (ClientData clientData);
+typedef void (Tcl_ServiceModeHookProc) (int mode);
+typedef ClientData (Tcl_InitNotifierProc) (void);
+typedef void (Tcl_FinalizeNotifierProc) (ClientData clientData);
+typedef void (Tcl_MainLoopProc) (void);
+
+/*
+ *----------------------------------------------------------------------------
+ * The following structure represents a type of object, which is a particular
+ * internal representation for an object plus a set of functions that provide
+ * standard operations on objects of that type.
+ */
+
+typedef struct Tcl_ObjType {
+    const char *name;		/* Name of the type, e.g. "int". */
+    Tcl_FreeInternalRepProc *freeIntRepProc;
+				/* Called to free any storage for the type's
+				 * internal rep. NULL if the internal rep does
+				 * not need freeing. */
+    Tcl_DupInternalRepProc *dupIntRepProc;
+				/* Called to create a new object as a copy of
+				 * an existing object. */
+    Tcl_UpdateStringProc *updateStringProc;
+				/* Called to update the string rep from the
+				 * type's internal representation. */
+    Tcl_SetFromAnyProc *setFromAnyProc;
+				/* Called to convert the object's internal rep
+				 * to this type. Frees the internal rep of the
+				 * old type. Returns TCL_ERROR on failure. */
+} Tcl_ObjType;
+
+/*
+ * One of the following structures exists for each object in the Tcl system.
+ * An object stores a value as either a string, some internal representation,
+ * or both.
+ */
+
+typedef struct Tcl_Obj {
+    int refCount;		/* When 0 the object will be freed. */
+    char *bytes;		/* This points to the first byte of the
+				 * object's string representation. The array
+				 * must be followed by a null byte (i.e., at
+				 * offset length) but may also contain
+				 * embedded null characters. The array's
+				 * storage is allocated by ckalloc. NULL means
+				 * the string rep is invalid and must be
+				 * regenerated from the internal rep.  Clients
+				 * should use Tcl_GetStringFromObj or
+				 * Tcl_GetString to get a pointer to the byte
+				 * array as a readonly value. */
+    int length;			/* The number of bytes at *bytes, not
+				 * including the terminating null. */
+    const Tcl_ObjType *typePtr;	/* Denotes the object's type. Always
+				 * corresponds to the type of the object's
+				 * internal rep. NULL indicates the object has
+				 * no internal rep (has no type). */
+    union {			/* The internal representation: */
+	long longValue;		/*   - an long integer value. */
+	double doubleValue;	/*   - a double-precision floating value. */
+	void *otherValuePtr;	/*   - another, type-specific value,
+	                       not used internally any more. */
+	Tcl_WideInt wideValue;	/*   - a long long value. */
+	struct {		/*   - internal rep as two pointers.
+				 *     the main use of which is a bignum's
+				 *     tightly packed fields, where the alloc,
+				 *     used and signum flags are packed into
+				 *     ptr2 with everything else hung off ptr1. */
+	    void *ptr1;
+	    void *ptr2;
+	} twoPtrValue;
+	struct {		/*   - internal rep as a pointer and a long,
+	                       not used internally any more. */
+	    void *ptr;
+	    unsigned long value;
+	} ptrAndLongRep;
+    } internalRep;
+} Tcl_Obj;
+
+/*
+ * Macros to increment and decrement a Tcl_Obj's reference count, and to test
+ * whether an object is shared (i.e. has reference count > 1). Note: clients
+ * should use Tcl_DecrRefCount() when they are finished using an object, and
+ * should never call TclFreeObj() directly. TclFreeObj() is only defined and
+ * made public in tcl.h to support Tcl_DecrRefCount's macro definition.
+ */
+
+void		Tcl_IncrRefCount(Tcl_Obj *objPtr);
+void		Tcl_DecrRefCount(Tcl_Obj *objPtr);
+int		Tcl_IsShared(Tcl_Obj *objPtr);
+
+/*
+ *----------------------------------------------------------------------------
+ * The following structure contains the state needed by Tcl_SaveResult. No-one
+ * outside of Tcl should access any of these fields. This structure is
+ * typically allocated on the stack.
+ */
+
+typedef struct Tcl_SavedResult {
+    char *result;
+    Tcl_FreeProc *freeProc;
+    Tcl_Obj *objResultPtr;
+    char *appendResult;
+    int appendAvl;
+    int appendUsed;
+    char resultSpace[TCL_RESULT_SIZE+1];
+} Tcl_SavedResult;
+
+/*
+ *----------------------------------------------------------------------------
+ * The following definitions support Tcl's namespace facility. Note: the first
+ * five fields must match exactly the fields in a Namespace structure (see
+ * tclInt.h).
+ */
+
+typedef struct Tcl_Namespace {
+    char *name;			/* The namespace's name within its parent
+				 * namespace. This contains no ::'s. The name
+				 * of the global namespace is "" although "::"
+				 * is an synonym. */
+    char *fullName;		/* The namespace's fully qualified name. This
+				 * starts with ::. */
+    ClientData clientData;	/* Arbitrary value associated with this
+				 * namespace. */
+    Tcl_NamespaceDeleteProc *deleteProc;
+				/* Function invoked when deleting the
+				 * namespace to, e.g., free clientData. */
+    struct Tcl_Namespace *parentPtr;
+				/* Points to the namespace that contains this
+				 * one. NULL if this is the global
+				 * namespace. */
+} Tcl_Namespace;
+
+/*
+ *----------------------------------------------------------------------------
+ * The following structure represents a call frame, or activation record. A
+ * call frame defines a naming context for a procedure call: its local scope
+ * (for local variables) and its namespace scope (used for non-local
+ * variables; often the global :: namespace). A call frame can also define the
+ * naming context for a namespace eval or namespace inscope command: the
+ * namespace in which the command's code should execute. The Tcl_CallFrame
+ * structures exist only while procedures or namespace eval/inscope's are
+ * being executed, and provide a Tcl call stack.
+ *
+ * A call frame is initialized and pushed using Tcl_PushCallFrame and popped
+ * using Tcl_PopCallFrame. Storage for a Tcl_CallFrame must be provided by the
+ * Tcl_PushCallFrame caller, and callers typically allocate them on the C call
+ * stack for efficiency. For this reason, Tcl_CallFrame is defined as a
+ * structure and not as an opaque token. However, most Tcl_CallFrame fields
+ * are hidden since applications should not access them directly; others are
+ * declared as "dummyX".
+ *
+ * WARNING!! The structure definition must be kept consistent with the
+ * CallFrame structure in tclInt.h. If you change one, change the other.
+ */
+
+typedef struct Tcl_CallFrame {
+    Tcl_Namespace *nsPtr;
+    int dummy1;
+    int dummy2;
+    void *dummy3;
+    void *dummy4;
+    void *dummy5;
+    int dummy6;
+    void *dummy7;
+    void *dummy8;
+    int dummy9;
+    void *dummy10;
+    void *dummy11;
+    void *dummy12;
+    void *dummy13;
+} Tcl_CallFrame;
+
+/*
+ *----------------------------------------------------------------------------
+ * Information about commands that is returned by Tcl_GetCommandInfo and
+ * passed to Tcl_SetCommandInfo. objProc is an objc/objv object-based command
+ * function while proc is a traditional Tcl argc/argv string-based function.
+ * Tcl_CreateObjCommand and Tcl_CreateCommand ensure that both objProc and
+ * proc are non-NULL and can be called to execute the command. However, it may
+ * be faster to call one instead of the other. The member isNativeObjectProc
+ * is set to 1 if an object-based function was registered by
+ * Tcl_CreateObjCommand, and to 0 if a string-based function was registered by
+ * Tcl_CreateCommand. The other function is typically set to a compatibility
+ * wrapper that does string-to-object or object-to-string argument conversions
+ * then calls the other function.
+ */
+
+typedef struct Tcl_CmdInfo {
+    int isNativeObjectProc;	/* 1 if objProc was registered by a call to
+				 * Tcl_CreateObjCommand; 0 otherwise.
+				 * Tcl_SetCmdInfo does not modify this
+				 * field. */
+    Tcl_ObjCmdProc *objProc;	/* Command's object-based function. */
+    ClientData objClientData;	/* ClientData for object proc. */
+    Tcl_CmdProc *proc;		/* Command's string-based function. */
+    ClientData clientData;	/* ClientData for string proc. */
+    Tcl_CmdDeleteProc *deleteProc;
+				/* Function to call when command is
+				 * deleted. */
+    ClientData deleteData;	/* Value to pass to deleteProc (usually the
+				 * same as clientData). */
+    Tcl_Namespace *namespacePtr;/* Points to the namespace that contains this
+				 * command. Note that Tcl_SetCmdInfo will not
+				 * change a command's namespace; use
+				 * TclRenameCommand or Tcl_Eval (of 'rename')
+				 * to do that. */
+} Tcl_CmdInfo;
+
+/*
+ *----------------------------------------------------------------------------
+ * The structure defined below is used to hold dynamic strings. The only
+ * fields that clients should use are string and length, accessible via the
+ * macros Tcl_DStringValue and Tcl_DStringLength.
+ */
+
+#define TCL_DSTRING_STATIC_SIZE 200
+typedef struct Tcl_DString {
+    char *string;		/* Points to beginning of string: either
+				 * staticSpace below or a malloced array. */
+    int length;			/* Number of non-NULL characters in the
+				 * string. */
+    int spaceAvl;		/* Total number of bytes available for the
+				 * string and its terminating NULL char. */
+    char staticSpace[TCL_DSTRING_STATIC_SIZE];
+				/* Space to use in common case where string is
+				 * small. */
+} Tcl_DString;
+
+#define Tcl_DStringLength(dsPtr) ((dsPtr)->length)
+#define Tcl_DStringValue(dsPtr) ((dsPtr)->string)
+#define Tcl_DStringTrunc Tcl_DStringSetLength
+
+/*
+ * Definitions for the maximum number of digits of precision that may be
+ * specified in the "tcl_precision" variable, and the number of bytes of
+ * buffer space required by Tcl_PrintDouble.
+ */
+
+#define TCL_MAX_PREC		17
+#define TCL_DOUBLE_SPACE	(TCL_MAX_PREC+10)
+
+/*
+ * Definition for a number of bytes of buffer space sufficient to hold the
+ * string representation of an integer in base 10 (assuming the existence of
+ * 64-bit integers).
+ */
+
+#define TCL_INTEGER_SPACE	24
+
+/*
+ * Flag values passed to Tcl_ConvertElement.
+ * TCL_DONT_USE_BRACES forces it not to enclose the element in braces, but to
+ *	use backslash quoting instead.
+ * TCL_DONT_QUOTE_HASH disables the default quoting of the '#' character. It
+ *	is safe to leave the hash unquoted when the element is not the first
+ *	element of a list, and this flag can be used by the caller to indicate
+ *	that condition.
+ */
+
+#define TCL_DONT_USE_BRACES	1
+#define TCL_DONT_QUOTE_HASH	8
+
+/*
+ * Flag that may be passed to Tcl_GetIndexFromObj to force it to disallow
+ * abbreviated strings.
+ */
+
+#define TCL_EXACT	1
+
+/*
+ *----------------------------------------------------------------------------
+ * Flag values passed to Tcl_RecordAndEval, Tcl_EvalObj, Tcl_EvalObjv.
+ * WARNING: these bit choices must not conflict with the bit choices for
+ * evalFlag bits in tclInt.h!
+ *
+ * Meanings:
+ *	TCL_NO_EVAL:		Just record this command
+ *	TCL_EVAL_GLOBAL:	Execute script in global namespace
+ *	TCL_EVAL_DIRECT:	Do not compile this script
+ *	TCL_EVAL_INVOKE:	Magical Tcl_EvalObjv mode for aliases/ensembles
+ *				o Run in iPtr->lookupNsPtr or global namespace
+ *				o Cut out of error traces
+ *				o Don't reset the flags controlling ensemble
+ *				  error message rewriting.
+ *	TCL_CANCEL_UNWIND:	Magical Tcl_CancelEval mode that causes the
+ *				stack for the script in progress to be
+ *				completely unwound.
+ *	TCL_EVAL_NOERR:	Do no exception reporting at all, just return
+ *				as the caller will report.
+ */
+
+#define TCL_NO_EVAL		0x010000
+#define TCL_EVAL_GLOBAL		0x020000
+#define TCL_EVAL_DIRECT		0x040000
+#define TCL_EVAL_INVOKE		0x080000
+#define TCL_CANCEL_UNWIND	0x100000
+#define TCL_EVAL_NOERR          0x200000
+
+/*
+ * Special freeProc values that may be passed to Tcl_SetResult (see the man
+ * page for details):
+ */
+
+#define TCL_VOLATILE		((Tcl_FreeProc *) 1)
+#define TCL_STATIC		((Tcl_FreeProc *) 0)
+#define TCL_DYNAMIC		((Tcl_FreeProc *) 3)
+
+/*
+ * Flag values passed to variable-related functions.
+ * WARNING: these bit choices must not conflict with the bit choice for
+ * TCL_CANCEL_UNWIND, above.
+ */
+
+#define TCL_GLOBAL_ONLY		 1
+#define TCL_NAMESPACE_ONLY	 2
+#define TCL_APPEND_VALUE	 4
+#define TCL_LIST_ELEMENT	 8
+#define TCL_TRACE_READS		 0x10
+#define TCL_TRACE_WRITES	 0x20
+#define TCL_TRACE_UNSETS	 0x40
+#define TCL_TRACE_DESTROYED	 0x80
+#define TCL_INTERP_DESTROYED	 0x100
+#define TCL_LEAVE_ERR_MSG	 0x200
+#define TCL_TRACE_ARRAY		 0x800
+#ifndef TCL_REMOVE_OBSOLETE_TRACES
+/* Required to support old variable/vdelete/vinfo traces. */
+#define TCL_TRACE_OLD_STYLE	 0x1000
+#endif
+/* Indicate the semantics of the result of a trace. */
+#define TCL_TRACE_RESULT_DYNAMIC 0x8000
+#define TCL_TRACE_RESULT_OBJECT  0x10000
+
+/*
+ * Flag values for ensemble commands.
+ */
+
+#define TCL_ENSEMBLE_PREFIX 0x02/* Flag value to say whether to allow
+				 * unambiguous prefixes of commands or to
+				 * require exact matches for command names. */
+
+/*
+ * Flag values passed to command-related functions.
+ */
+
+#define TCL_TRACE_RENAME	0x2000
+#define TCL_TRACE_DELETE	0x4000
+
+#define TCL_ALLOW_INLINE_COMPILATION 0x20000
+
+/*
+ * The TCL_PARSE_PART1 flag is deprecated and has no effect. The part1 is now
+ * always parsed whenever the part2 is NULL. (This is to avoid a common error
+ * when converting code to use the new object based APIs and forgetting to
+ * give the flag)
+ */
+
+#ifndef TCL_NO_DEPRECATED
+#   define TCL_PARSE_PART1	0x400
+#endif
+
+/*
+ * Types for linked variables:
+ */
+
+#define TCL_LINK_INT		1
+#define TCL_LINK_DOUBLE		2
+#define TCL_LINK_BOOLEAN	3
+#define TCL_LINK_STRING		4
+#define TCL_LINK_WIDE_INT	5
+#define TCL_LINK_CHAR		6
+#define TCL_LINK_UCHAR		7
+#define TCL_LINK_SHORT		8
+#define TCL_LINK_USHORT		9
+#define TCL_LINK_UINT		10
+#define TCL_LINK_LONG		11
+#define TCL_LINK_ULONG		12
+#define TCL_LINK_FLOAT		13
+#define TCL_LINK_WIDE_UINT	14
+#define TCL_LINK_READ_ONLY	0x80
+
+/*
+ *----------------------------------------------------------------------------
+ * Forward declarations of Tcl_HashTable and related types.
+ */
+
+typedef struct Tcl_HashKeyType Tcl_HashKeyType;
+typedef struct Tcl_HashTable Tcl_HashTable;
+typedef struct Tcl_HashEntry Tcl_HashEntry;
+
+typedef unsigned (Tcl_HashKeyProc) (Tcl_HashTable *tablePtr, void *keyPtr);
+typedef int (Tcl_CompareHashKeysProc) (void *keyPtr, Tcl_HashEntry *hPtr);
+typedef Tcl_HashEntry * (Tcl_AllocHashEntryProc) (Tcl_HashTable *tablePtr,
+	void *keyPtr);
+typedef void (Tcl_FreeHashEntryProc) (Tcl_HashEntry *hPtr);
+
+/*
+ * This flag controls whether the hash table stores the hash of a key, or
+ * recalculates it. There should be no reason for turning this flag off as it
+ * is completely binary and source compatible unless you directly access the
+ * bucketPtr member of the Tcl_HashTableEntry structure. This member has been
+ * removed and the space used to store the hash value.
+ */
+
+#ifndef TCL_HASH_KEY_STORE_HASH
+#   define TCL_HASH_KEY_STORE_HASH 1
+#endif
+
+/*
+ * Structure definition for an entry in a hash table. No-one outside Tcl
+ * should access any of these fields directly; use the macros defined below.
+ */
+
+struct Tcl_HashEntry {
+    Tcl_HashEntry *nextPtr;	/* Pointer to next entry in this hash bucket,
+				 * or NULL for end of chain. */
+    Tcl_HashTable *tablePtr;	/* Pointer to table containing entry. */
+#if TCL_HASH_KEY_STORE_HASH
+    void *hash;			/* Hash value, stored as pointer to ensure
+				 * that the offsets of the fields in this
+				 * structure are not changed. */
+#else
+    Tcl_HashEntry **bucketPtr;	/* Pointer to bucket that points to first
+				 * entry in this entry's chain: used for
+				 * deleting the entry. */
+#endif
+    ClientData clientData;	/* Application stores something here with
+				 * Tcl_SetHashValue. */
+    union {			/* Key has one of these forms: */
+	char *oneWordValue;	/* One-word value for key. */
+	Tcl_Obj *objPtr;	/* Tcl_Obj * key value. */
+	int words[1];		/* Multiple integer words for key. The actual
+				 * size will be as large as necessary for this
+				 * table's keys. */
+	char string[1];		/* String for key. The actual size will be as
+				 * large as needed to hold the key. */
+    } key;			/* MUST BE LAST FIELD IN RECORD!! */
+};
+
+/*
+ * Flags used in Tcl_HashKeyType.
+ *
+ * TCL_HASH_KEY_RANDOMIZE_HASH -
+ *				There are some things, pointers for example
+ *				which don't hash well because they do not use
+ *				the lower bits. If this flag is set then the
+ *				hash table will attempt to rectify this by
+ *				randomising the bits and then using the upper
+ *				N bits as the index into the table.
+ * TCL_HASH_KEY_SYSTEM_HASH -	If this flag is set then all memory internally
+ *                              allocated for the hash table that is not for an
+ *                              entry will use the system heap.
+ */
+
+#define TCL_HASH_KEY_RANDOMIZE_HASH 0x1
+#define TCL_HASH_KEY_SYSTEM_HASH    0x2
+
+/*
+ * Structure definition for the methods associated with a hash table key type.
+ */
+
+#define TCL_HASH_KEY_TYPE_VERSION 1
+struct Tcl_HashKeyType {
+    int version;		/* Version of the table. If this structure is
+				 * extended in future then the version can be
+				 * used to distinguish between different
+				 * structures. */
+    int flags;			/* Flags, see above for details. */
+    Tcl_HashKeyProc *hashKeyProc;
+				/* Calculates a hash value for the key. If
+				 * this is NULL then the pointer itself is
+				 * used as a hash value. */
+    Tcl_CompareHashKeysProc *compareKeysProc;
+				/* Compares two keys and returns zero if they
+				 * do not match, and non-zero if they do. If
+				 * this is NULL then the pointers are
+				 * compared. */
+    Tcl_AllocHashEntryProc *allocEntryProc;
+				/* Called to allocate memory for a new entry,
+				 * i.e. if the key is a string then this could
+				 * allocate a single block which contains
+				 * enough space for both the entry and the
+				 * string. Only the key field of the allocated
+				 * Tcl_HashEntry structure needs to be filled
+				 * in. If something else needs to be done to
+				 * the key, i.e. incrementing a reference
+				 * count then that should be done by this
+				 * function. If this is NULL then Tcl_Alloc is
+				 * used to allocate enough space for a
+				 * Tcl_HashEntry and the key pointer is
+				 * assigned to key.oneWordValue. */
+    Tcl_FreeHashEntryProc *freeEntryProc;
+				/* Called to free memory associated with an
+				 * entry. If something else needs to be done
+				 * to the key, i.e. decrementing a reference
+				 * count then that should be done by this
+				 * function. If this is NULL then Tcl_Free is
+				 * used to free the Tcl_HashEntry. */
+};
+
+/*
+ * Structure definition for a hash table.  Must be in tcl.h so clients can
+ * allocate space for these structures, but clients should never access any
+ * fields in this structure.
+ */
+
+#define TCL_SMALL_HASH_TABLE 4
+struct Tcl_HashTable {
+    Tcl_HashEntry **buckets;	/* Pointer to bucket array. Each element
+				 * points to first entry in bucket's hash
+				 * chain, or NULL. */
+    Tcl_HashEntry *staticBuckets[TCL_SMALL_HASH_TABLE];
+				/* Bucket array used for small tables (to
+				 * avoid mallocs and frees). */
+    int numBuckets;		/* Total number of buckets allocated at
+				 * **bucketPtr. */
+    int numEntries;		/* Total number of entries present in
+				 * table. */
+    int rebuildSize;		/* Enlarge table when numEntries gets to be
+				 * this large. */
+    int downShift;		/* Shift count used in hashing function.
+				 * Designed to use high-order bits of
+				 * randomized keys. */
+    int mask;			/* Mask value used in hashing function. */
+    int keyType;		/* Type of keys used in this table. It's
+				 * either TCL_CUSTOM_KEYS, TCL_STRING_KEYS,
+				 * TCL_ONE_WORD_KEYS, or an integer giving the
+				 * number of ints that is the size of the
+				 * key. */
+    Tcl_HashEntry *(*findProc) (Tcl_HashTable *tablePtr, const char *key);
+    Tcl_HashEntry *(*createProc) (Tcl_HashTable *tablePtr, const char *key,
+	    int *newPtr);
+    const Tcl_HashKeyType *typePtr;
+				/* Type of the keys used in the
+				 * Tcl_HashTable. */
+};
+
+/*
+ * Structure definition for information used to keep track of searches through
+ * hash tables:
+ */
+
+typedef struct Tcl_HashSearch {
+    Tcl_HashTable *tablePtr;	/* Table being searched. */
+    int nextIndex;		/* Index of next bucket to be enumerated after
+				 * present one. */
+    Tcl_HashEntry *nextEntryPtr;/* Next entry to be enumerated in the current
+				 * bucket. */
+} Tcl_HashSearch;
+
+/*
+ * Acceptable key types for hash tables:
+ *
+ * TCL_STRING_KEYS:		The keys are strings, they are copied into the
+ *				entry.
+ * TCL_ONE_WORD_KEYS:		The keys are pointers, the pointer is stored
+ *				in the entry.
+ * TCL_CUSTOM_TYPE_KEYS:	The keys are arbitrary types which are copied
+ *				into the entry.
+ * TCL_CUSTOM_PTR_KEYS:		The keys are pointers to arbitrary types, the
+ *				pointer is stored in the entry.
+ *
+ * While maintaining binary compatability the above have to be distinct values
+ * as they are used to differentiate between old versions of the hash table
+ * which don't have a typePtr and new ones which do. Once binary compatability
+ * is discarded in favour of making more wide spread changes TCL_STRING_KEYS
+ * can be the same as TCL_CUSTOM_TYPE_KEYS, and TCL_ONE_WORD_KEYS can be the
+ * same as TCL_CUSTOM_PTR_KEYS because they simply determine how the key is
+ * accessed from the entry and not the behaviour.
+ */
+
+#define TCL_STRING_KEYS		(0)
+#define TCL_ONE_WORD_KEYS	(1)
+#define TCL_CUSTOM_TYPE_KEYS	(-2)
+#define TCL_CUSTOM_PTR_KEYS	(-1)
+
+/*
+ * Structure definition for information used to keep track of searches through
+ * dictionaries. These fields should not be accessed by code outside
+ * tclDictObj.c
+ */
+
+typedef struct {
+    void *next;			/* Search position for underlying hash
+				 * table. */
+    int epoch;			/* Epoch marker for dictionary being searched,
+				 * or -1 if search has terminated. */
+    Tcl_Dict dictionaryPtr;	/* Reference to dictionary being searched. */
+} Tcl_DictSearch;
+
+/*
+ *----------------------------------------------------------------------------
+ * Flag values to pass to Tcl_DoOneEvent to disable searches for some kinds of
+ * events:
+ */
+
+#define TCL_DONT_WAIT		(1<<1)
+#define TCL_WINDOW_EVENTS	(1<<2)
+#define TCL_FILE_EVENTS		(1<<3)
+#define TCL_TIMER_EVENTS	(1<<4)
+#define TCL_IDLE_EVENTS		(1<<5)	/* WAS 0x10 ???? */
+#define TCL_ALL_EVENTS		(~TCL_DONT_WAIT)
+
+/*
+ * The following structure defines a generic event for the Tcl event system.
+ * These are the things that are queued in calls to Tcl_QueueEvent and
+ * serviced later by Tcl_DoOneEvent. There can be many different kinds of
+ * events with different fields, corresponding to window events, timer events,
+ * etc. The structure for a particular event consists of a Tcl_Event header
+ * followed by additional information specific to that event.
+ */
+
+struct Tcl_Event {
+    Tcl_EventProc *proc;	/* Function to call to service this event. */
+    struct Tcl_Event *nextPtr;	/* Next in list of pending events, or NULL. */
+};
+
+/*
+ * Positions to pass to Tcl_QueueEvent:
+ */
+
+typedef enum {
+    TCL_QUEUE_TAIL, TCL_QUEUE_HEAD, TCL_QUEUE_MARK
+} Tcl_QueuePosition;
+
+/*
+ * Values to pass to Tcl_SetServiceMode to specify the behavior of notifier
+ * event routines.
+ */
+
+#define TCL_SERVICE_NONE 0
+#define TCL_SERVICE_ALL 1
+
+/*
+ * The following structure keeps is used to hold a time value, either as an
+ * absolute time (the number of seconds from the epoch) or as an elapsed time.
+ * On Unix systems the epoch is Midnight Jan 1, 1970 GMT.
+ */
+
+typedef struct Tcl_Time {
+    long sec;			/* Seconds. */
+    long usec;			/* Microseconds. */
+} Tcl_Time;
+
+typedef void (Tcl_SetTimerProc) (CONST86 Tcl_Time *timePtr);
+typedef int (Tcl_WaitForEventProc) (CONST86 Tcl_Time *timePtr);
+
+/*
+ * TIP #233 (Virtualized Time)
+ */
+
+typedef void (Tcl_GetTimeProc)   (Tcl_Time *timebuf, ClientData clientData);
+typedef void (Tcl_ScaleTimeProc) (Tcl_Time *timebuf, ClientData clientData);
+
+/*
+ *----------------------------------------------------------------------------
+ * Bits to pass to Tcl_CreateFileHandler and Tcl_CreateChannelHandler to
+ * indicate what sorts of events are of interest:
+ */
+
+#define TCL_READABLE		(1<<1)
+#define TCL_WRITABLE		(1<<2)
+#define TCL_EXCEPTION		(1<<3)
+
+/*
+ * Flag values to pass to Tcl_OpenCommandChannel to indicate the disposition
+ * of the stdio handles. TCL_STDIN, TCL_STDOUT, TCL_STDERR, are also used in
+ * Tcl_GetStdChannel.
+ */
+
+#define TCL_STDIN		(1<<1)
+#define TCL_STDOUT		(1<<2)
+#define TCL_STDERR		(1<<3)
+#define TCL_ENFORCE_MODE	(1<<4)
+
+/*
+ * Bits passed to Tcl_DriverClose2Proc to indicate which side of a channel
+ * should be closed.
+ */
+
+#define TCL_CLOSE_READ		(1<<1)
+#define TCL_CLOSE_WRITE		(1<<2)
+
+/*
+ * Value to use as the closeProc for a channel that supports the close2Proc
+ * interface.
+ */
+
+#define TCL_CLOSE2PROC		((Tcl_DriverCloseProc *) 1)
+
+/*
+ * Channel version tag. This was introduced in 8.3.2/8.4.
+ */
+
+#define TCL_CHANNEL_VERSION_1	((Tcl_ChannelTypeVersion) 0x1)
+#define TCL_CHANNEL_VERSION_2	((Tcl_ChannelTypeVersion) 0x2)
+#define TCL_CHANNEL_VERSION_3	((Tcl_ChannelTypeVersion) 0x3)
+#define TCL_CHANNEL_VERSION_4	((Tcl_ChannelTypeVersion) 0x4)
+#define TCL_CHANNEL_VERSION_5	((Tcl_ChannelTypeVersion) 0x5)
+
+/*
+ * TIP #218: Channel Actions, Ids for Tcl_DriverThreadActionProc.
+ */
+
+#define TCL_CHANNEL_THREAD_INSERT (0)
+#define TCL_CHANNEL_THREAD_REMOVE (1)
+
+/*
+ * Typedefs for the various operations in a channel type:
+ */
+
+typedef int	(Tcl_DriverBlockModeProc) (ClientData instanceData, int mode);
+typedef int	(Tcl_DriverCloseProc) (ClientData instanceData,
+			Tcl_Interp *interp);
+typedef int	(Tcl_DriverClose2Proc) (ClientData instanceData,
+			Tcl_Interp *interp, int flags);
+typedef int	(Tcl_DriverInputProc) (ClientData instanceData, char *buf,
+			int toRead, int *errorCodePtr);
+typedef int	(Tcl_DriverOutputProc) (ClientData instanceData,
+			CONST84 char *buf, int toWrite, int *errorCodePtr);
+typedef int	(Tcl_DriverSeekProc) (ClientData instanceData, long offset,
+			int mode, int *errorCodePtr);
+typedef int	(Tcl_DriverSetOptionProc) (ClientData instanceData,
+			Tcl_Interp *interp, const char *optionName,
+			const char *value);
+typedef int	(Tcl_DriverGetOptionProc) (ClientData instanceData,
+			Tcl_Interp *interp, CONST84 char *optionName,
+			Tcl_DString *dsPtr);
+typedef void	(Tcl_DriverWatchProc) (ClientData instanceData, int mask);
+typedef int	(Tcl_DriverGetHandleProc) (ClientData instanceData,
+			int direction, ClientData *handlePtr);
+typedef int	(Tcl_DriverFlushProc) (ClientData instanceData);
+typedef int	(Tcl_DriverHandlerProc) (ClientData instanceData,
+			int interestMask);
+typedef Tcl_WideInt (Tcl_DriverWideSeekProc) (ClientData instanceData,
+			Tcl_WideInt offset, int mode, int *errorCodePtr);
+/*
+ * TIP #218, Channel Thread Actions
+ */
+typedef void	(Tcl_DriverThreadActionProc) (ClientData instanceData,
+			int action);
+/*
+ * TIP #208, File Truncation (etc.)
+ */
+typedef int	(Tcl_DriverTruncateProc) (ClientData instanceData,
+			Tcl_WideInt length);
+
+/*
+ * struct Tcl_ChannelType:
+ *
+ * One such structure exists for each type (kind) of channel. It collects
+ * together in one place all the functions that are part of the specific
+ * channel type.
+ *
+ * It is recommend that the Tcl_Channel* functions are used to access elements
+ * of this structure, instead of direct accessing.
+ */
+
+typedef struct Tcl_ChannelType {
+    const char *typeName;	/* The name of the channel type in Tcl
+				 * commands. This storage is owned by channel
+				 * type. */
+    Tcl_ChannelTypeVersion version;
+				/* Version of the channel type. */
+    Tcl_DriverCloseProc *closeProc;
+				/* Function to call to close the channel, or
+				 * TCL_CLOSE2PROC if the close2Proc should be
+				 * used instead. */
+    Tcl_DriverInputProc *inputProc;
+				/* Function to call for input on channel. */
+    Tcl_DriverOutputProc *outputProc;
+				/* Function to call for output on channel. */
+    Tcl_DriverSeekProc *seekProc;
+				/* Function to call to seek on the channel.
+				 * May be NULL. */
+    Tcl_DriverSetOptionProc *setOptionProc;
+				/* Set an option on a channel. */
+    Tcl_DriverGetOptionProc *getOptionProc;
+				/* Get an option from a channel. */
+    Tcl_DriverWatchProc *watchProc;
+				/* Set up the notifier to watch for events on
+				 * this channel. */
+    Tcl_DriverGetHandleProc *getHandleProc;
+				/* Get an OS handle from the channel or NULL
+				 * if not supported. */
+    Tcl_DriverClose2Proc *close2Proc;
+				/* Function to call to close the channel if
+				 * the device supports closing the read &
+				 * write sides independently. */
+    Tcl_DriverBlockModeProc *blockModeProc;
+				/* Set blocking mode for the raw channel. May
+				 * be NULL. */
+    /*
+     * Only valid in TCL_CHANNEL_VERSION_2 channels or later.
+     */
+    Tcl_DriverFlushProc *flushProc;
+				/* Function to call to flush a channel. May be
+				 * NULL. */
+    Tcl_DriverHandlerProc *handlerProc;
+				/* Function to call to handle a channel event.
+				 * This will be passed up the stacked channel
+				 * chain. */
+    /*
+     * Only valid in TCL_CHANNEL_VERSION_3 channels or later.
+     */
+    Tcl_DriverWideSeekProc *wideSeekProc;
+				/* Function to call to seek on the channel
+				 * which can handle 64-bit offsets. May be
+				 * NULL, and must be NULL if seekProc is
+				 * NULL. */
+    /*
+     * Only valid in TCL_CHANNEL_VERSION_4 channels or later.
+     * TIP #218, Channel Thread Actions.
+     */
+    Tcl_DriverThreadActionProc *threadActionProc;
+				/* Function to call to notify the driver of
+				 * thread specific activity for a channel. May
+				 * be NULL. */
+    /*
+     * Only valid in TCL_CHANNEL_VERSION_5 channels or later.
+     * TIP #208, File Truncation.
+     */
+    Tcl_DriverTruncateProc *truncateProc;
+				/* Function to call to truncate the underlying
+				 * file to a particular length. May be NULL if
+				 * the channel does not support truncation. */
+} Tcl_ChannelType;
+
+/*
+ * The following flags determine whether the blockModeProc above should set
+ * the channel into blocking or nonblocking mode. They are passed as arguments
+ * to the blockModeProc function in the above structure.
+ */
+
+#define TCL_MODE_BLOCKING	0	/* Put channel into blocking mode. */
+#define TCL_MODE_NONBLOCKING	1	/* Put channel into nonblocking
+					 * mode. */
+
+/*
+ *----------------------------------------------------------------------------
+ * Enum for different types of file paths.
+ */
+
+typedef enum Tcl_PathType {
+    TCL_PATH_ABSOLUTE,
+    TCL_PATH_RELATIVE,
+    TCL_PATH_VOLUME_RELATIVE
+} Tcl_PathType;
+
+/*
+ * The following structure is used to pass glob type data amongst the various
+ * glob routines and Tcl_FSMatchInDirectory.
+ */
+
+typedef struct Tcl_GlobTypeData {
+    int type;			/* Corresponds to bcdpfls as in 'find -t'. */
+    int perm;			/* Corresponds to file permissions. */
+    Tcl_Obj *macType;		/* Acceptable Mac type. */
+    Tcl_Obj *macCreator;	/* Acceptable Mac creator. */
+} Tcl_GlobTypeData;
+
+/*
+ * Type and permission definitions for glob command.
+ */
+
+#define TCL_GLOB_TYPE_BLOCK		(1<<0)
+#define TCL_GLOB_TYPE_CHAR		(1<<1)
+#define TCL_GLOB_TYPE_DIR		(1<<2)
+#define TCL_GLOB_TYPE_PIPE		(1<<3)
+#define TCL_GLOB_TYPE_FILE		(1<<4)
+#define TCL_GLOB_TYPE_LINK		(1<<5)
+#define TCL_GLOB_TYPE_SOCK		(1<<6)
+#define TCL_GLOB_TYPE_MOUNT		(1<<7)
+
+#define TCL_GLOB_PERM_RONLY		(1<<0)
+#define TCL_GLOB_PERM_HIDDEN		(1<<1)
+#define TCL_GLOB_PERM_R			(1<<2)
+#define TCL_GLOB_PERM_W			(1<<3)
+#define TCL_GLOB_PERM_X			(1<<4)
+
+/*
+ * Flags for the unload callback function.
+ */
+
+#define TCL_UNLOAD_DETACH_FROM_INTERPRETER	(1<<0)
+#define TCL_UNLOAD_DETACH_FROM_PROCESS		(1<<1)
+
+/*
+ * Typedefs for the various filesystem operations:
+ */
+
+typedef int (Tcl_FSStatProc) (Tcl_Obj *pathPtr, Tcl_StatBuf *buf);
+typedef int (Tcl_FSAccessProc) (Tcl_Obj *pathPtr, int mode);
+typedef Tcl_Channel (Tcl_FSOpenFileChannelProc) (Tcl_Interp *interp,
+	Tcl_Obj *pathPtr, int mode, int permissions);
+typedef int (Tcl_FSMatchInDirectoryProc) (Tcl_Interp *interp, Tcl_Obj *result,
+	Tcl_Obj *pathPtr, const char *pattern, Tcl_GlobTypeData *types);
+typedef Tcl_Obj * (Tcl_FSGetCwdProc) (Tcl_Interp *interp);
+typedef int (Tcl_FSChdirProc) (Tcl_Obj *pathPtr);
+typedef int (Tcl_FSLstatProc) (Tcl_Obj *pathPtr, Tcl_StatBuf *buf);
+typedef int (Tcl_FSCreateDirectoryProc) (Tcl_Obj *pathPtr);
+typedef int (Tcl_FSDeleteFileProc) (Tcl_Obj *pathPtr);
+typedef int (Tcl_FSCopyDirectoryProc) (Tcl_Obj *srcPathPtr,
+	Tcl_Obj *destPathPtr, Tcl_Obj **errorPtr);
+typedef int (Tcl_FSCopyFileProc) (Tcl_Obj *srcPathPtr, Tcl_Obj *destPathPtr);
+typedef int (Tcl_FSRemoveDirectoryProc) (Tcl_Obj *pathPtr, int recursive,
+	Tcl_Obj **errorPtr);
+typedef int (Tcl_FSRenameFileProc) (Tcl_Obj *srcPathPtr, Tcl_Obj *destPathPtr);
+typedef void (Tcl_FSUnloadFileProc) (Tcl_LoadHandle loadHandle);
+typedef Tcl_Obj * (Tcl_FSListVolumesProc) (void);
+/* We have to declare the utime structure here. */
+struct utimbuf;
+typedef int (Tcl_FSUtimeProc) (Tcl_Obj *pathPtr, struct utimbuf *tval);
+typedef int (Tcl_FSNormalizePathProc) (Tcl_Interp *interp, Tcl_Obj *pathPtr,
+	int nextCheckpoint);
+typedef int (Tcl_FSFileAttrsGetProc) (Tcl_Interp *interp, int index,
+	Tcl_Obj *pathPtr, Tcl_Obj **objPtrRef);
+typedef const char *CONST86 * (Tcl_FSFileAttrStringsProc) (Tcl_Obj *pathPtr,
+	Tcl_Obj **objPtrRef);
+typedef int (Tcl_FSFileAttrsSetProc) (Tcl_Interp *interp, int index,
+	Tcl_Obj *pathPtr, Tcl_Obj *objPtr);
+typedef Tcl_Obj * (Tcl_FSLinkProc) (Tcl_Obj *pathPtr, Tcl_Obj *toPtr,
+	int linkType);
+typedef int (Tcl_FSLoadFileProc) (Tcl_Interp *interp, Tcl_Obj *pathPtr,
+	Tcl_LoadHandle *handlePtr, Tcl_FSUnloadFileProc **unloadProcPtr);
+typedef int (Tcl_FSPathInFilesystemProc) (Tcl_Obj *pathPtr,
+	ClientData *clientDataPtr);
+typedef Tcl_Obj * (Tcl_FSFilesystemPathTypeProc) (Tcl_Obj *pathPtr);
+typedef Tcl_Obj * (Tcl_FSFilesystemSeparatorProc) (Tcl_Obj *pathPtr);
+typedef void (Tcl_FSFreeInternalRepProc) (ClientData clientData);
+typedef ClientData (Tcl_FSDupInternalRepProc) (ClientData clientData);
+typedef Tcl_Obj * (Tcl_FSInternalToNormalizedProc) (ClientData clientData);
+typedef ClientData (Tcl_FSCreateInternalRepProc) (Tcl_Obj *pathPtr);
+
+typedef struct Tcl_FSVersion_ *Tcl_FSVersion;
+
+/*
+ *----------------------------------------------------------------------------
+ * Data structures related to hooking into the filesystem
+ */
+
+/*
+ * Filesystem version tag.  This was introduced in 8.4.
+ */
+
+#define TCL_FILESYSTEM_VERSION_1	((Tcl_FSVersion) 0x1)
+
+/*
+ * struct Tcl_Filesystem:
+ *
+ * One such structure exists for each type (kind) of filesystem. It collects
+ * together in one place all the functions that are part of the specific
+ * filesystem. Tcl always accesses the filesystem through one of these
+ * structures.
+ *
+ * Not all entries need be non-NULL; any which are NULL are simply ignored.
+ * However, a complete filesystem should provide all of these functions. The
+ * explanations in the structure show the importance of each function.
+ */
+
+typedef struct Tcl_Filesystem {
+    const char *typeName;	/* The name of the filesystem. */
+    int structureLength;	/* Length of this structure, so future binary
+				 * compatibility can be assured. */
+    Tcl_FSVersion version;	/* Version of the filesystem type. */
+    Tcl_FSPathInFilesystemProc *pathInFilesystemProc;
+				/* Function to check whether a path is in this
+				 * filesystem. This is the most important
+				 * filesystem function. */
+    Tcl_FSDupInternalRepProc *dupInternalRepProc;
+				/* Function to duplicate internal fs rep. May
+				 * be NULL (but then fs is less efficient). */
+    Tcl_FSFreeInternalRepProc *freeInternalRepProc;
+				/* Function to free internal fs rep. Must be
+				 * implemented if internal representations
+				 * need freeing, otherwise it can be NULL. */
+    Tcl_FSInternalToNormalizedProc *internalToNormalizedProc;
+				/* Function to convert internal representation
+				 * to a normalized path. Only required if the
+				 * fs creates pure path objects with no
+				 * string/path representation. */
+    Tcl_FSCreateInternalRepProc *createInternalRepProc;
+				/* Function to create a filesystem-specific
+				 * internal representation. May be NULL if
+				 * paths have no internal representation, or
+				 * if the Tcl_FSPathInFilesystemProc for this
+				 * filesystem always immediately creates an
+				 * internal representation for paths it
+				 * accepts. */
+    Tcl_FSNormalizePathProc *normalizePathProc;
+				/* Function to normalize a path.  Should be
+				 * implemented for all filesystems which can
+				 * have multiple string representations for
+				 * the same path object. */
+    Tcl_FSFilesystemPathTypeProc *filesystemPathTypeProc;
+				/* Function to determine the type of a path in
+				 * this filesystem. May be NULL. */
+    Tcl_FSFilesystemSeparatorProc *filesystemSeparatorProc;
+				/* Function to return the separator
+				 * character(s) for this filesystem. Must be
+				 * implemented. */
+    Tcl_FSStatProc *statProc;	/* Function to process a 'Tcl_FSStat()' call.
+				 * Must be implemented for any reasonable
+				 * filesystem. */
+    Tcl_FSAccessProc *accessProc;
+				/* Function to process a 'Tcl_FSAccess()'
+				 * call. Must be implemented for any
+				 * reasonable filesystem. */
+    Tcl_FSOpenFileChannelProc *openFileChannelProc;
+				/* Function to process a
+				 * 'Tcl_FSOpenFileChannel()' call. Must be
+				 * implemented for any reasonable
+				 * filesystem. */
+    Tcl_FSMatchInDirectoryProc *matchInDirectoryProc;
+				/* Function to process a
+				 * 'Tcl_FSMatchInDirectory()'.  If not
+				 * implemented, then glob and recursive copy
+				 * functionality will be lacking in the
+				 * filesystem. */
+    Tcl_FSUtimeProc *utimeProc;	/* Function to process a 'Tcl_FSUtime()' call.
+				 * Required to allow setting (not reading) of
+				 * times with 'file mtime', 'file atime' and
+				 * the open-r/open-w/fcopy implementation of
+				 * 'file copy'. */
+    Tcl_FSLinkProc *linkProc;	/* Function to process a 'Tcl_FSLink()' call.
+				 * Should be implemented only if the
+				 * filesystem supports links (reading or
+				 * creating). */
+    Tcl_FSListVolumesProc *listVolumesProc;
+				/* Function to list any filesystem volumes
+				 * added by this filesystem. Should be
+				 * implemented only if the filesystem adds
+				 * volumes at the head of the filesystem. */
+    Tcl_FSFileAttrStringsProc *fileAttrStringsProc;
+				/* Function to list all attributes strings
+				 * which are valid for this filesystem. If not
+				 * implemented the filesystem will not support
+				 * the 'file attributes' command. This allows
+				 * arbitrary additional information to be
+				 * attached to files in the filesystem. */
+    Tcl_FSFileAttrsGetProc *fileAttrsGetProc;
+				/* Function to process a
+				 * 'Tcl_FSFileAttrsGet()' call, used by 'file
+				 * attributes'. */
+    Tcl_FSFileAttrsSetProc *fileAttrsSetProc;
+				/* Function to process a
+				 * 'Tcl_FSFileAttrsSet()' call, used by 'file
+				 * attributes'.  */
+    Tcl_FSCreateDirectoryProc *createDirectoryProc;
+				/* Function to process a
+				 * 'Tcl_FSCreateDirectory()' call. Should be
+				 * implemented unless the FS is read-only. */
+    Tcl_FSRemoveDirectoryProc *removeDirectoryProc;
+				/* Function to process a
+				 * 'Tcl_FSRemoveDirectory()' call. Should be
+				 * implemented unless the FS is read-only. */
+    Tcl_FSDeleteFileProc *deleteFileProc;
+				/* Function to process a 'Tcl_FSDeleteFile()'
+				 * call. Should be implemented unless the FS
+				 * is read-only. */
+    Tcl_FSCopyFileProc *copyFileProc;
+				/* Function to process a 'Tcl_FSCopyFile()'
+				 * call. If not implemented Tcl will fall back
+				 * on open-r, open-w and fcopy as a copying
+				 * mechanism, for copying actions initiated in
+				 * Tcl (not C). */
+    Tcl_FSRenameFileProc *renameFileProc;
+				/* Function to process a 'Tcl_FSRenameFile()'
+				 * call. If not implemented, Tcl will fall
+				 * back on a copy and delete mechanism, for
+				 * rename actions initiated in Tcl (not C). */
+    Tcl_FSCopyDirectoryProc *copyDirectoryProc;
+				/* Function to process a
+				 * 'Tcl_FSCopyDirectory()' call. If not
+				 * implemented, Tcl will fall back on a
+				 * recursive create-dir, file copy mechanism,
+				 * for copying actions initiated in Tcl (not
+				 * C). */
+    Tcl_FSLstatProc *lstatProc;	/* Function to process a 'Tcl_FSLstat()' call.
+				 * If not implemented, Tcl will attempt to use
+				 * the 'statProc' defined above instead. */
+    Tcl_FSLoadFileProc *loadFileProc;
+				/* Function to process a 'Tcl_FSLoadFile()'
+				 * call. If not implemented, Tcl will fall
+				 * back on a copy to native-temp followed by a
+				 * Tcl_FSLoadFile on that temporary copy. */
+    Tcl_FSGetCwdProc *getCwdProc;
+				/* Function to process a 'Tcl_FSGetCwd()'
+				 * call. Most filesystems need not implement
+				 * this. It will usually only be called once,
+				 * if 'getcwd' is called before 'chdir'. May
+				 * be NULL. */
+    Tcl_FSChdirProc *chdirProc;	/* Function to process a 'Tcl_FSChdir()' call.
+				 * If filesystems do not implement this, it
+				 * will be emulated by a series of directory
+				 * access checks. Otherwise, virtual
+				 * filesystems which do implement it need only
+				 * respond with a positive return result if
+				 * the dirName is a valid directory in their
+				 * filesystem. They need not remember the
+				 * result, since that will be automatically
+				 * remembered for use by GetCwd. Real
+				 * filesystems should carry out the correct
+				 * action (i.e. call the correct system
+				 * 'chdir' api). If not implemented, then 'cd'
+				 * and 'pwd' will fail inside the
+				 * filesystem. */
+} Tcl_Filesystem;
+
+/*
+ * The following definitions are used as values for the 'linkAction' flag to
+ * Tcl_FSLink, or the linkProc of any filesystem. Any combination of flags can
+ * be given. For link creation, the linkProc should create a link which
+ * matches any of the types given.
+ *
+ * TCL_CREATE_SYMBOLIC_LINK -	Create a symbolic or soft link.
+ * TCL_CREATE_HARD_LINK -	Create a hard link.
+ */
+
+#define TCL_CREATE_SYMBOLIC_LINK	0x01
+#define TCL_CREATE_HARD_LINK		0x02
+
+/*
+ *----------------------------------------------------------------------------
+ * The following structure represents the Notifier functions that you can
+ * override with the Tcl_SetNotifier call.
+ */
+
+typedef struct Tcl_NotifierProcs {
+    Tcl_SetTimerProc *setTimerProc;
+    Tcl_WaitForEventProc *waitForEventProc;
+    Tcl_CreateFileHandlerProc *createFileHandlerProc;
+    Tcl_DeleteFileHandlerProc *deleteFileHandlerProc;
+    Tcl_InitNotifierProc *initNotifierProc;
+    Tcl_FinalizeNotifierProc *finalizeNotifierProc;
+    Tcl_AlertNotifierProc *alertNotifierProc;
+    Tcl_ServiceModeHookProc *serviceModeHookProc;
+} Tcl_NotifierProcs;
+
+/*
+ *----------------------------------------------------------------------------
+ * The following data structures and declarations are for the new Tcl parser.
+ *
+ * For each word of a command, and for each piece of a word such as a variable
+ * reference, one of the following structures is created to describe the
+ * token.
+ */
+
+typedef struct Tcl_Token {
+    int type;			/* Type of token, such as TCL_TOKEN_WORD; see
+				 * below for valid types. */
+    const char *start;		/* First character in token. */
+    int size;			/* Number of bytes in token. */
+    int numComponents;		/* If this token is composed of other tokens,
+				 * this field tells how many of them there are
+				 * (including components of components, etc.).
+				 * The component tokens immediately follow
+				 * this one. */
+} Tcl_Token;
+
+/*
+ * Type values defined for Tcl_Token structures. These values are defined as
+ * mask bits so that it's easy to check for collections of types.
+ *
+ * TCL_TOKEN_WORD -		The token describes one word of a command,
+ *				from the first non-blank character of the word
+ *				(which may be " or {) up to but not including
+ *				the space, semicolon, or bracket that
+ *				terminates the word. NumComponents counts the
+ *				total number of sub-tokens that make up the
+ *				word. This includes, for example, sub-tokens
+ *				of TCL_TOKEN_VARIABLE tokens.
+ * TCL_TOKEN_SIMPLE_WORD -	This token is just like TCL_TOKEN_WORD except
+ *				that the word is guaranteed to consist of a
+ *				single TCL_TOKEN_TEXT sub-token.
+ * TCL_TOKEN_TEXT -		The token describes a range of literal text
+ *				that is part of a word. NumComponents is
+ *				always 0.
+ * TCL_TOKEN_BS -		The token describes a backslash sequence that
+ *				must be collapsed. NumComponents is always 0.
+ * TCL_TOKEN_COMMAND -		The token describes a command whose result
+ *				must be substituted into the word. The token
+ *				includes the enclosing brackets. NumComponents
+ *				is always 0.
+ * TCL_TOKEN_VARIABLE -		The token describes a variable substitution,
+ *				including the dollar sign, variable name, and
+ *				array index (if there is one) up through the
+ *				right parentheses. NumComponents tells how
+ *				many additional tokens follow to represent the
+ *				variable name. The first token will be a
+ *				TCL_TOKEN_TEXT token that describes the
+ *				variable name. If the variable is an array
+ *				reference then there will be one or more
+ *				additional tokens, of type TCL_TOKEN_TEXT,
+ *				TCL_TOKEN_BS, TCL_TOKEN_COMMAND, and
+ *				TCL_TOKEN_VARIABLE, that describe the array
+ *				index; numComponents counts the total number
+ *				of nested tokens that make up the variable
+ *				reference, including sub-tokens of
+ *				TCL_TOKEN_VARIABLE tokens.
+ * TCL_TOKEN_SUB_EXPR -		The token describes one subexpression of an
+ *				expression, from the first non-blank character
+ *				of the subexpression up to but not including
+ *				the space, brace, or bracket that terminates
+ *				the subexpression. NumComponents counts the
+ *				total number of following subtokens that make
+ *				up the subexpression; this includes all
+ *				subtokens for any nested TCL_TOKEN_SUB_EXPR
+ *				tokens. For example, a numeric value used as a
+ *				primitive operand is described by a
+ *				TCL_TOKEN_SUB_EXPR token followed by a
+ *				TCL_TOKEN_TEXT token. A binary subexpression
+ *				is described by a TCL_TOKEN_SUB_EXPR token
+ *				followed by the TCL_TOKEN_OPERATOR token for
+ *				the operator, then TCL_TOKEN_SUB_EXPR tokens
+ *				for the left then the right operands.
+ * TCL_TOKEN_OPERATOR -		The token describes one expression operator.
+ *				An operator might be the name of a math
+ *				function such as "abs". A TCL_TOKEN_OPERATOR
+ *				token is always preceeded by one
+ *				TCL_TOKEN_SUB_EXPR token for the operator's
+ *				subexpression, and is followed by zero or more
+ *				TCL_TOKEN_SUB_EXPR tokens for the operator's
+ *				operands. NumComponents is always 0.
+ * TCL_TOKEN_EXPAND_WORD -	This token is just like TCL_TOKEN_WORD except
+ *				that it marks a word that began with the
+ *				literal character prefix "{*}". This word is
+ *				marked to be expanded - that is, broken into
+ *				words after substitution is complete.
+ */
+
+#define TCL_TOKEN_WORD		1
+#define TCL_TOKEN_SIMPLE_WORD	2
+#define TCL_TOKEN_TEXT		4
+#define TCL_TOKEN_BS		8
+#define TCL_TOKEN_COMMAND	16
+#define TCL_TOKEN_VARIABLE	32
+#define TCL_TOKEN_SUB_EXPR	64
+#define TCL_TOKEN_OPERATOR	128
+#define TCL_TOKEN_EXPAND_WORD	256
+
+/*
+ * Parsing error types. On any parsing error, one of these values will be
+ * stored in the error field of the Tcl_Parse structure defined below.
+ */
+
+#define TCL_PARSE_SUCCESS		0
+#define TCL_PARSE_QUOTE_EXTRA		1
+#define TCL_PARSE_BRACE_EXTRA		2
+#define TCL_PARSE_MISSING_BRACE		3
+#define TCL_PARSE_MISSING_BRACKET	4
+#define TCL_PARSE_MISSING_PAREN		5
+#define TCL_PARSE_MISSING_QUOTE		6
+#define TCL_PARSE_MISSING_VAR_BRACE	7
+#define TCL_PARSE_SYNTAX		8
+#define TCL_PARSE_BAD_NUMBER		9
+
+/*
+ * A structure of the following type is filled in by Tcl_ParseCommand. It
+ * describes a single command parsed from an input string.
+ */
+
+#define NUM_STATIC_TOKENS 20
+
+typedef struct Tcl_Parse {
+    const char *commentStart;	/* Pointer to # that begins the first of one
+				 * or more comments preceding the command. */
+    int commentSize;		/* Number of bytes in comments (up through
+				 * newline character that terminates the last
+				 * comment). If there were no comments, this
+				 * field is 0. */
+    const char *commandStart;	/* First character in first word of
+				 * command. */
+    int commandSize;		/* Number of bytes in command, including first
+				 * character of first word, up through the
+				 * terminating newline, close bracket, or
+				 * semicolon. */
+    int numWords;		/* Total number of words in command. May be
+				 * 0. */
+    Tcl_Token *tokenPtr;	/* Pointer to first token representing the
+				 * words of the command. Initially points to
+				 * staticTokens, but may change to point to
+				 * malloc-ed space if command exceeds space in
+				 * staticTokens. */
+    int numTokens;		/* Total number of tokens in command. */
+    int tokensAvailable;	/* Total number of tokens available at
+				 * *tokenPtr. */
+    int errorType;		/* One of the parsing error types defined
+				 * above. */
+
+    /*
+     * The fields below are intended only for the private use of the parser.
+     * They should not be used by functions that invoke Tcl_ParseCommand.
+     */
+
+    const char *string;		/* The original command string passed to
+				 * Tcl_ParseCommand. */
+    const char *end;		/* Points to the character just after the last
+				 * one in the command string. */
+    Tcl_Interp *interp;		/* Interpreter to use for error reporting, or
+				 * NULL. */
+    const char *term;		/* Points to character in string that
+				 * terminated most recent token. Filled in by
+				 * ParseTokens. If an error occurs, points to
+				 * beginning of region where the error
+				 * occurred (e.g. the open brace if the close
+				 * brace is missing). */
+    int incomplete;		/* This field is set to 1 by Tcl_ParseCommand
+				 * if the command appears to be incomplete.
+				 * This information is used by
+				 * Tcl_CommandComplete. */
+    Tcl_Token staticTokens[NUM_STATIC_TOKENS];
+				/* Initial space for tokens for command. This
+				 * space should be large enough to accommodate
+				 * most commands; dynamic space is allocated
+				 * for very large commands that don't fit
+				 * here. */
+} Tcl_Parse;
+
+/*
+ *----------------------------------------------------------------------------
+ * The following structure represents a user-defined encoding. It collects
+ * together all the functions that are used by the specific encoding.
+ */
+
+typedef struct Tcl_EncodingType {
+    const char *encodingName;	/* The name of the encoding, e.g. "euc-jp".
+				 * This name is the unique key for this
+				 * encoding type. */
+    Tcl_EncodingConvertProc *toUtfProc;
+				/* Function to convert from external encoding
+				 * into UTF-8. */
+    Tcl_EncodingConvertProc *fromUtfProc;
+				/* Function to convert from UTF-8 into
+				 * external encoding. */
+    Tcl_EncodingFreeProc *freeProc;
+				/* If non-NULL, function to call when this
+				 * encoding is deleted. */
+    ClientData clientData;	/* Arbitrary value associated with encoding
+				 * type. Passed to conversion functions. */
+    int nullSize;		/* Number of zero bytes that signify
+				 * end-of-string in this encoding. This number
+				 * is used to determine the source string
+				 * length when the srcLen argument is
+				 * negative. Must be 1 or 2. */
+} Tcl_EncodingType;
+
+/*
+ * The following definitions are used as values for the conversion control
+ * flags argument when converting text from one character set to another:
+ *
+ * TCL_ENCODING_START -		Signifies that the source buffer is the first
+ *				block in a (potentially multi-block) input
+ *				stream. Tells the conversion function to reset
+ *				to an initial state and perform any
+ *				initialization that needs to occur before the
+ *				first byte is converted. If the source buffer
+ *				contains the entire input stream to be
+ *				converted, this flag should be set.
+ * TCL_ENCODING_END -		Signifies that the source buffer is the last
+ *				block in a (potentially multi-block) input
+ *				stream. Tells the conversion routine to
+ *				perform any finalization that needs to occur
+ *				after the last byte is converted and then to
+ *				reset to an initial state. If the source
+ *				buffer contains the entire input stream to be
+ *				converted, this flag should be set.
+ * TCL_ENCODING_STOPONERROR -	If set, then the converter will return
+ *				immediately upon encountering an invalid byte
+ *				sequence or a source character that has no
+ *				mapping in the target encoding. If clear, then
+ *				the converter will skip the problem,
+ *				substituting one or more "close" characters in
+ *				the destination buffer and then continue to
+ *				convert the source.
+ * TCL_ENCODING_NO_TERMINATE - 	If set, Tcl_ExternalToUtf will not append a
+ *				terminating NUL byte.  Knowing that it will
+ *				not need space to do so, it will fill all
+ *				dstLen bytes with encoded UTF-8 content, as
+ *				other circumstances permit.  If clear, the
+ *				default behavior is to reserve a byte in
+ *				the dst space for NUL termination, and to
+ *				append the NUL byte.
+ * TCL_ENCODING_CHAR_LIMIT -	If set and dstCharsPtr is not NULL, then
+ *				Tcl_ExternalToUtf takes the initial value
+ *				of *dstCharsPtr is taken as a limit of the
+ *				maximum number of chars to produce in the
+ *				encoded UTF-8 content.  Otherwise, the
+ *				number of chars produced is controlled only
+ *				by other limiting factors.
+ */
+
+#define TCL_ENCODING_START		0x01
+#define TCL_ENCODING_END		0x02
+#define TCL_ENCODING_STOPONERROR	0x04
+#define TCL_ENCODING_NO_TERMINATE	0x08
+#define TCL_ENCODING_CHAR_LIMIT		0x10
+
+/*
+ * The following definitions are the error codes returned by the conversion
+ * routines:
+ *
+ * TCL_OK -			All characters were converted.
+ * TCL_CONVERT_NOSPACE -	The output buffer would not have been large
+ *				enough for all of the converted data; as many
+ *				characters as could fit were converted though.
+ * TCL_CONVERT_MULTIBYTE -	The last few bytes in the source string were
+ *				the beginning of a multibyte sequence, but
+ *				more bytes were needed to complete this
+ *				sequence. A subsequent call to the conversion
+ *				routine should pass the beginning of this
+ *				unconverted sequence plus additional bytes
+ *				from the source stream to properly convert the
+ *				formerly split-up multibyte sequence.
+ * TCL_CONVERT_SYNTAX -		The source stream contained an invalid
+ *				character sequence. This may occur if the
+ *				input stream has been damaged or if the input
+ *				encoding method was misidentified. This error
+ *				is reported only if TCL_ENCODING_STOPONERROR
+ *				was specified.
+ * TCL_CONVERT_UNKNOWN -	The source string contained a character that
+ *				could not be represented in the target
+ *				encoding. This error is reported only if
+ *				TCL_ENCODING_STOPONERROR was specified.
+ */
+
+#define TCL_CONVERT_MULTIBYTE	(-1)
+#define TCL_CONVERT_SYNTAX	(-2)
+#define TCL_CONVERT_UNKNOWN	(-3)
+#define TCL_CONVERT_NOSPACE	(-4)
+
+/*
+ * The maximum number of bytes that are necessary to represent a single
+ * Unicode character in UTF-8. The valid values should be 3, 4 or 6
+ * (or perhaps 1 if we want to support a non-unicode enabled core). If 3 or
+ * 4, then Tcl_UniChar must be 2-bytes in size (UCS-2) (the default). If 6,
+ * then Tcl_UniChar must be 4-bytes in size (UCS-4). At this time UCS-2 mode
+ * is the default and recommended mode. UCS-4 is experimental and not
+ * recommended. It works for the core, but most extensions expect UCS-2.
+ */
+
+#ifndef TCL_UTF_MAX
+#define TCL_UTF_MAX		3
+#endif
+
+/*
+ * This represents a Unicode character. Any changes to this should also be
+ * reflected in regcustom.h.
+ */
+
+#if TCL_UTF_MAX > 4
+    /*
+     * unsigned int isn't 100% accurate as it should be a strict 4-byte value
+     * (perhaps wchar_t). 64-bit systems may have troubles. The size of this
+     * value must be reflected correctly in regcustom.h and
+     * in tclEncoding.c.
+     * XXX: Tcl is currently UCS-2 and planning UTF-16 for the Unicode
+     * XXX: string rep that Tcl_UniChar represents.  Changing the size
+     * XXX: of Tcl_UniChar is /not/ supported.
+     */
+typedef unsigned int Tcl_UniChar;
+#else
+typedef unsigned short Tcl_UniChar;
+#endif
+
+/*
+ *----------------------------------------------------------------------------
+ * TIP #59: The following structure is used in calls 'Tcl_RegisterConfig' to
+ * provide the system with the embedded configuration data.
+ */
+
+typedef struct Tcl_Config {
+    const char *key;		/* Configuration key to register. ASCII
+				 * encoded, thus UTF-8. */
+    const char *value;		/* The value associated with the key. System
+				 * encoding. */
+} Tcl_Config;
+
+/*
+ *----------------------------------------------------------------------------
+ * Flags for TIP#143 limits, detailing which limits are active in an
+ * interpreter. Used for Tcl_{Add,Remove}LimitHandler type argument.
+ */
+
+#define TCL_LIMIT_COMMANDS	0x01
+#define TCL_LIMIT_TIME		0x02
+
+/*
+ * Structure containing information about a limit handler to be called when a
+ * command- or time-limit is exceeded by an interpreter.
+ */
+
+typedef void (Tcl_LimitHandlerProc) (ClientData clientData, Tcl_Interp *interp);
+typedef void (Tcl_LimitHandlerDeleteProc) (ClientData clientData);
+
+/*
+ *----------------------------------------------------------------------------
+ * Override definitions for libtommath.
+ */
+
+typedef struct mp_int mp_int;
+#define MP_INT_DECLARED
+typedef unsigned int mp_digit;
+#define MP_DIGIT_DECLARED
+
+/*
+ *----------------------------------------------------------------------------
+ * Definitions needed for Tcl_ParseArgvObj routines.
+ * Based on tkArgv.c.
+ * Modifications from the original are copyright (c) Sam Bromley 2006
+ */
+
+typedef struct {
+    int type;			/* Indicates the option type; see below. */
+    const char *keyStr;		/* The key string that flags the option in the
+				 * argv array. */
+    void *srcPtr;		/* Value to be used in setting dst; usage
+				 * depends on type.*/
+    void *dstPtr;		/* Address of value to be modified; usage
+				 * depends on type.*/
+    const char *helpStr;	/* Documentation message describing this
+				 * option. */
+    ClientData clientData;	/* Word to pass to function callbacks. */
+} Tcl_ArgvInfo;
+
+/*
+ * Legal values for the type field of a Tcl_ArgInfo: see the user
+ * documentation for details.
+ */
+
+#define TCL_ARGV_CONSTANT	15
+#define TCL_ARGV_INT		16
+#define TCL_ARGV_STRING		17
+#define TCL_ARGV_REST		18
+#define TCL_ARGV_FLOAT		19
+#define TCL_ARGV_FUNC		20
+#define TCL_ARGV_GENFUNC	21
+#define TCL_ARGV_HELP		22
+#define TCL_ARGV_END		23
+
+/*
+ * Types of callback functions for the TCL_ARGV_FUNC and TCL_ARGV_GENFUNC
+ * argument types:
+ */
+
+typedef int (Tcl_ArgvFuncProc)(ClientData clientData, Tcl_Obj *objPtr,
+	void *dstPtr);
+typedef int (Tcl_ArgvGenFuncProc)(ClientData clientData, Tcl_Interp *interp,
+	int objc, Tcl_Obj *const *objv, void *dstPtr);
+
+/*
+ * Shorthand for commonly used argTable entries.
+ */
+
+#define TCL_ARGV_AUTO_HELP \
+    {TCL_ARGV_HELP,	"-help",	NULL,	NULL, \
+	    "Print summary of command-line options and abort", NULL}
+#define TCL_ARGV_AUTO_REST \
+    {TCL_ARGV_REST,	"--",		NULL,	NULL, \
+	    "Marks the end of the options", NULL}
+#define TCL_ARGV_TABLE_END \
+    {TCL_ARGV_END, NULL, NULL, NULL, NULL, NULL}
+
+/*
+ *----------------------------------------------------------------------------
+ * Definitions needed for Tcl_Zlib routines. [TIP #234]
+ *
+ * Constants for the format flags describing what sort of data format is
+ * desired/expected for the Tcl_ZlibDeflate, Tcl_ZlibInflate and
+ * Tcl_ZlibStreamInit functions.
+ */
+
+#define TCL_ZLIB_FORMAT_RAW	1
+#define TCL_ZLIB_FORMAT_ZLIB	2
+#define TCL_ZLIB_FORMAT_GZIP	4
+#define TCL_ZLIB_FORMAT_AUTO	8
+
+/*
+ * Constants that describe whether the stream is to operate in compressing or
+ * decompressing mode.
+ */
+
+#define TCL_ZLIB_STREAM_DEFLATE	16
+#define TCL_ZLIB_STREAM_INFLATE	32
+
+/*
+ * Constants giving compression levels. Use of TCL_ZLIB_COMPRESS_DEFAULT is
+ * recommended.
+ */
+
+#define TCL_ZLIB_COMPRESS_NONE	0
+#define TCL_ZLIB_COMPRESS_FAST	1
+#define TCL_ZLIB_COMPRESS_BEST	9
+#define TCL_ZLIB_COMPRESS_DEFAULT (-1)
+
+/*
+ * Constants for types of flushing, used with Tcl_ZlibFlush.
+ */
+
+#define TCL_ZLIB_NO_FLUSH	0
+#define TCL_ZLIB_FLUSH		2
+#define TCL_ZLIB_FULLFLUSH	3
+#define TCL_ZLIB_FINALIZE	4
+
+/*
+ *----------------------------------------------------------------------------
+ * Definitions needed for the Tcl_LoadFile function. [TIP #416]
+ */
+
+#define TCL_LOAD_GLOBAL 1
+#define TCL_LOAD_LAZY 2
+
+/*
+ *----------------------------------------------------------------------------
+ * Single public declaration for NRE.
+ */
+
+typedef int (Tcl_NRPostProc) (ClientData data[], Tcl_Interp *interp,
+				int result);
+
+/*
+ *----------------------------------------------------------------------------
+ * The following constant is used to test for older versions of Tcl in the
+ * stubs tables.
+ *
+ * Jan Nijtman's plus patch uses 0xFCA1BACF, so we need to pick a different
+ * value since the stubs tables don't match.
+ */
+
+#define TCL_STUB_MAGIC		((int) 0xFCA3BACF)
+
+/*
+ * The following function is required to be defined in all stubs aware
+ * extensions. The function is actually implemented in the stub library, not
+ * the main Tcl library, although there is a trivial implementation in the
+ * main library in case an extension is statically linked into an application.
+ */
+
+const char *		Tcl_InitStubs(Tcl_Interp *interp, const char *version,
+			    int exact);
+const char *		TclTomMathInitializeStubs(Tcl_Interp *interp,
+			    const char *version, int epoch, int revision);
+
+/*
+ * When not using stubs, make it a macro.
+ */
+
+#ifndef USE_TCL_STUBS
+#define Tcl_InitStubs(interp, version, exact) \
+    Tcl_PkgInitStubsCheck(interp, version, exact)
+#endif
+
+/*
+ * TODO - tommath stubs export goes here!
+ */
+
+/*
+ * Public functions that are not accessible via the stubs table.
+ * Tcl_GetMemoryInfo is needed for AOLserver. [Bug 1868171]
+ */
+
+#define Tcl_Main(argc, argv, proc) Tcl_MainEx(argc, argv, proc, \
+	    ((Tcl_CreateInterp)()))
+EXTERN void		Tcl_MainEx(int argc, char **argv,
+			    Tcl_AppInitProc *appInitProc, Tcl_Interp *interp);
+EXTERN const char *	Tcl_PkgInitStubsCheck(Tcl_Interp *interp,
+			    const char *version, int exact);
+EXTERN void		Tcl_GetMemoryInfo(Tcl_DString *dsPtr);
+
+/*
+ *----------------------------------------------------------------------------
+ * Include the public function declarations that are accessible via the stubs
+ * table.
+ */
+
+#include "tclDecls.h"
+
+/*
+ * Include platform specific public function declarations that are accessible
+ * via the stubs table. Make all TclOO symbols MODULE_SCOPE (which only
+ * has effect on building it as a shared library). See ticket [3010352].
+ */
+
+#if defined(BUILD_tcl)
+#   undef TCLAPI
+#   define TCLAPI MODULE_SCOPE
+#endif
+
+#include "tclPlatDecls.h"
+
+/*
+ *----------------------------------------------------------------------------
+ * The following declarations either map ckalloc and ckfree to malloc and
+ * free, or they map them to functions with all sorts of debugging hooks
+ * defined in tclCkalloc.c.
+ */
+
+#ifdef TCL_MEM_DEBUG
+
+#   define ckalloc(x) \
+    ((void *) Tcl_DbCkalloc((unsigned)(x), __FILE__, __LINE__))
+#   define ckfree(x) \
+    Tcl_DbCkfree((char *)(x), __FILE__, __LINE__)
+#   define ckrealloc(x,y) \
+    ((void *) Tcl_DbCkrealloc((char *)(x), (unsigned)(y), __FILE__, __LINE__))
+#   define attemptckalloc(x) \
+    ((void *) Tcl_AttemptDbCkalloc((unsigned)(x), __FILE__, __LINE__))
+#   define attemptckrealloc(x,y) \
+    ((void *) Tcl_AttemptDbCkrealloc((char *)(x), (unsigned)(y), __FILE__, __LINE__))
+
+#else /* !TCL_MEM_DEBUG */
+
+/*
+ * If we are not using the debugging allocator, we should call the Tcl_Alloc,
+ * et al. routines in order to guarantee that every module is using the same
+ * memory allocator both inside and outside of the Tcl library.
+ */
+
+#   define ckalloc(x) \
+    ((void *) Tcl_Alloc((unsigned)(x)))
+#   define ckfree(x) \
+    Tcl_Free((char *)(x))
+#   define ckrealloc(x,y) \
+    ((void *) Tcl_Realloc((char *)(x), (unsigned)(y)))
+#   define attemptckalloc(x) \
+    ((void *) Tcl_AttemptAlloc((unsigned)(x)))
+#   define attemptckrealloc(x,y) \
+    ((void *) Tcl_AttemptRealloc((char *)(x), (unsigned)(y)))
+#   undef  Tcl_InitMemory
+#   define Tcl_InitMemory(x)
+#   undef  Tcl_DumpActiveMemory
+#   define Tcl_DumpActiveMemory(x)
+#   undef  Tcl_ValidateAllMemory
+#   define Tcl_ValidateAllMemory(x,y)
+
+#endif /* !TCL_MEM_DEBUG */
+
+#ifdef TCL_MEM_DEBUG
+#   define Tcl_IncrRefCount(objPtr) \
+	Tcl_DbIncrRefCount(objPtr, __FILE__, __LINE__)
+#   define Tcl_DecrRefCount(objPtr) \
+	Tcl_DbDecrRefCount(objPtr, __FILE__, __LINE__)
+#   define Tcl_IsShared(objPtr) \
+	Tcl_DbIsShared(objPtr, __FILE__, __LINE__)
+#else
+#   define Tcl_IncrRefCount(objPtr) \
+	++(objPtr)->refCount
+    /*
+     * Use do/while0 idiom for optimum correctness without compiler warnings.
+     * http://c2.com/cgi/wiki?TrivialDoWhileLoop
+     */
+#   define Tcl_DecrRefCount(objPtr) \
+	do { \
+	    Tcl_Obj *_objPtr = (objPtr); \
+	    if ((_objPtr)->refCount-- <= 1) { \
+		TclFreeObj(_objPtr); \
+	    } \
+	} while(0)
+#   define Tcl_IsShared(objPtr) \
+	((objPtr)->refCount > 1)
+#endif
+
+/*
+ * Macros and definitions that help to debug the use of Tcl objects. When
+ * TCL_MEM_DEBUG is defined, the Tcl_New declarations are overridden to call
+ * debugging versions of the object creation functions.
+ */
+
+#ifdef TCL_MEM_DEBUG
+#  undef  Tcl_NewBignumObj
+#  define Tcl_NewBignumObj(val) \
+     Tcl_DbNewBignumObj(val, __FILE__, __LINE__)
+#  undef  Tcl_NewBooleanObj
+#  define Tcl_NewBooleanObj(val) \
+     Tcl_DbNewBooleanObj(val, __FILE__, __LINE__)
+#  undef  Tcl_NewByteArrayObj
+#  define Tcl_NewByteArrayObj(bytes, len) \
+     Tcl_DbNewByteArrayObj(bytes, len, __FILE__, __LINE__)
+#  undef  Tcl_NewDoubleObj
+#  define Tcl_NewDoubleObj(val) \
+     Tcl_DbNewDoubleObj(val, __FILE__, __LINE__)
+#  undef  Tcl_NewIntObj
+#  define Tcl_NewIntObj(val) \
+     Tcl_DbNewLongObj(val, __FILE__, __LINE__)
+#  undef  Tcl_NewListObj
+#  define Tcl_NewListObj(objc, objv) \
+     Tcl_DbNewListObj(objc, objv, __FILE__, __LINE__)
+#  undef  Tcl_NewLongObj
+#  define Tcl_NewLongObj(val) \
+     Tcl_DbNewLongObj(val, __FILE__, __LINE__)
+#  undef  Tcl_NewObj
+#  define Tcl_NewObj() \
+     Tcl_DbNewObj(__FILE__, __LINE__)
+#  undef  Tcl_NewStringObj
+#  define Tcl_NewStringObj(bytes, len) \
+     Tcl_DbNewStringObj(bytes, len, __FILE__, __LINE__)
+#  undef  Tcl_NewWideIntObj
+#  define Tcl_NewWideIntObj(val) \
+     Tcl_DbNewWideIntObj(val, __FILE__, __LINE__)
+#endif /* TCL_MEM_DEBUG */
+
+/*
+ *----------------------------------------------------------------------------
+ * Macros for clients to use to access fields of hash entries:
+ */
+
+#define Tcl_GetHashValue(h) ((h)->clientData)
+#define Tcl_SetHashValue(h, value) ((h)->clientData = (ClientData) (value))
+#define Tcl_GetHashKey(tablePtr, h) \
+	((void *) (((tablePtr)->keyType == TCL_ONE_WORD_KEYS || \
+		    (tablePtr)->keyType == TCL_CUSTOM_PTR_KEYS) \
+		   ? (h)->key.oneWordValue \
+		   : (h)->key.string))
+
+/*
+ * Macros to use for clients to use to invoke find and create functions for
+ * hash tables:
+ */
+
+#undef  Tcl_FindHashEntry
+#define Tcl_FindHashEntry(tablePtr, key) \
+	(*((tablePtr)->findProc))(tablePtr, (const char *)(key))
+#undef  Tcl_CreateHashEntry
+#define Tcl_CreateHashEntry(tablePtr, key, newPtr) \
+	(*((tablePtr)->createProc))(tablePtr, (const char *)(key), newPtr)
+
+/*
+ *----------------------------------------------------------------------------
+ * Macros that eliminate the overhead of the thread synchronization functions
+ * when compiling without thread support.
+ */
+
+#ifndef TCL_THREADS
+#undef  Tcl_MutexLock
+#define Tcl_MutexLock(mutexPtr)
+#undef  Tcl_MutexUnlock
+#define Tcl_MutexUnlock(mutexPtr)
+#undef  Tcl_MutexFinalize
+#define Tcl_MutexFinalize(mutexPtr)
+#undef  Tcl_ConditionNotify
+#define Tcl_ConditionNotify(condPtr)
+#undef  Tcl_ConditionWait
+#define Tcl_ConditionWait(condPtr, mutexPtr, timePtr)
+#undef  Tcl_ConditionFinalize
+#define Tcl_ConditionFinalize(condPtr)
+#endif /* TCL_THREADS */
+
+/*
+ *----------------------------------------------------------------------------
+ * Deprecated Tcl functions:
+ */
+
+#ifndef TCL_NO_DEPRECATED
+/*
+ * These function have been renamed. The old names are deprecated, but we
+ * define these macros for backwards compatibilty.
+ */
+
+#   define Tcl_Ckalloc		Tcl_Alloc
+#   define Tcl_Ckfree		Tcl_Free
+#   define Tcl_Ckrealloc	Tcl_Realloc
+#   define Tcl_Return		Tcl_SetResult
+#   define Tcl_TildeSubst	Tcl_TranslateFileName
+#   define panic		Tcl_Panic
+#   define panicVA		Tcl_PanicVA
+#endif /* !TCL_NO_DEPRECATED */
+
+/*
+ *----------------------------------------------------------------------------
+ * Convenience declaration of Tcl_AppInit for backwards compatibility. This
+ * function is not *implemented* by the tcl library, so the storage class is
+ * neither DLLEXPORT nor DLLIMPORT.
+ */
+
+extern Tcl_AppInitProc Tcl_AppInit;
+
+#endif /* RC_INVOKED */
+
+/*
+ * end block for C++
+ */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _TCL */
+
+/*
+ * Local Variables:
+ * mode: c
+ * c-basic-offset: 4
+ * fill-column: 78
+ * End:
+ */