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/*
* tkInitScript.h --
*
* This file contains Unix & Windows common init script
* It is not used on the Mac. (the mac init script is in tkMacInit.c)
*
* Copyright (c) 1997 Sun Microsystems, Inc.
*
* See the file "license.terms" for information on usage and redistribution
* of this file, and for a DISCLAIMER OF ALL WARRANTIES.
*
* SCCS: @(#) tkInitScript.h 1.3 97/08/11 19:12:28
*/
/*
* In order to find tk.tcl during initialization, the following script
* is invoked by Tk_Init(). It looks in several different directories:
*
* $tk_library - can specify a primary location, if set
* no other locations will be checked
*
* $env(TK_LIBRARY) - highest priority so user can always override
* the search path unless the application has
* specified an exact directory above
*
* $tcl_library/../tk$tk_version
* - look relative to init.tcl in an installed
* lib directory (e.g. /usr/local)
*
* <executable directory>/../lib/tk$tk_version
* - look for a lib/tk<ver> in a sibling of
* the bin directory (e.g. /usr/local)
*
* <executable directory>/../library
* - look in Tk build directory
*
* <executable directory>/../../tk$tk_patchLevel/library
* - look for Tk build directory relative
* to a parallel build directory
*
* The first directory on this path that contains a valid tk.tcl script
* will be set ast the value of tk_library.
*
* Note that this entire search mechanism can be bypassed by defining an
* alternate tkInit procedure before calling Tk_Init().
*/
static char initScript[] = "if {[info proc tkInit]==\"\"} {\n\
proc tkInit {} {\n\
global tk_library tk_version tk_patchLevel env errorInfo\n\
rename tkInit {}\n\
set errors {}\n\
set dirs {}\n\
if {[info exists tk_library]} {\n\
lappend dirs $tk_library\n\
} else {\n\
if {[info exists env(TK_LIBRARY)]} {\n\
lappend dirs $env(TK_LIBRARY)\n\
}\n\
lappend dirs [file join [file dirname [info library]] tk$tk_version]\n\
set parentDir [file dirname [file dirname [info nameofexecutable]]]\n\
lappend dirs [file join $parentDir lib tk$tk_version]\n\
lappend dirs [file join $parentDir library]\n\
if [string match {*[ab]*} $tk_patchLevel] {\n\
set ver $tk_patchLevel\n\
} else {\n\
set ver $tk_version\n\
}\n\
lappend dirs [file join [file dirname $parentDir] tk$ver/library]\n\
}\n\
foreach i $dirs {\n\
set tk_library $i\n\
set tkfile [file join $i tk.tcl]\n\
if {[interp issafe] || [file exists $tkfile]} {\n\
if {![catch {uplevel #0 [list source $tkfile]} msg]} {\n\
return\n\
} else {\n\
append errors \"$tkfile: $msg\n$errorInfo\n\"\n\
}\n\
}\n\
}\n\
set msg \"Can't find a usable tk.tcl in the following directories: \n\"\n\
append msg \" $dirs\n\n\"\n\
append msg \"$errors\n\n\"\n\
append msg \"This probably means that Tk wasn't installed properly.\n\"\n\
error $msg\n\
}\n\
}\n\
tkInit";
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