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+/*
+ * bltUnixMain.c --
+ *
+ * Provides a default version of the Tcl_AppInit procedure for
+ * use in wish and similar Tk-based applications.
+ *
+ * Copyright (c) 1993 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * Permission is hereby granted, without written agreement and without
+ * license or royalty fees, to use, copy, modify, and distribute this
+ * software and its documentation for any purpose, provided that the
+ * above copyright notice and the following two paragraphs appear in
+ * all copies of this software.
+ *
+ * IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR
+ * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT
+ * OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF THE UNIVERSITY OF
+ * CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES,
+ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
+ * ON AN "AS IS" BASIS, AND THE UNIVERSITY OF CALIFORNIA HAS NO OBLIGATION TO
+ * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
+ *
+ * Copyright 1991-1998 by Bell Labs Innovations for Lucent Technologies.
+ *
+ * Permission to use, copy, modify, and distribute this software and
+ * its documentation for any purpose and without fee is hereby
+ * granted, provided that the above copyright notice appear in all
+ * copies and that both that the copyright notice and warranty
+ * disclaimer appear in supporting documentation, and that the names
+ * of Lucent Technologies any of their entities not be used in
+ * advertising or publicity pertaining to distribution of the software
+ * without specific, written prior permission.
+ *
+ * Lucent Technologies disclaims all warranties with regard to this
+ * software, including all implied warranties of merchantability and
+ * fitness. In no event shall Lucent Technologies be liable for any
+ * special, indirect or consequential damages or any damages
+ * whatsoever resulting from loss of use, data or profits, whether in
+ * an action of contract, negligence or other tortuous action, arising
+ * out of or in connection with the use or performance of this
+ * software.
+ */
+
+#include <tcl.h>
+#ifndef TCL_ONLY
+#include <tk.h>
+#endif
+
+#if HAVE_ITCL_H
+#include "itcl.h"
+#endif
+#if HAVE_ITK_H
+#include "itk.h"
+#endif
+
+extern int Blt_Init _ANSI_ARGS_((Tcl_Interp *interp));
+extern int Blt_SafeInit _ANSI_ARGS_((Tcl_Interp *interp));
+
+/*
+ * The following variable is a special hack that is needed in order for
+ * Sun shared libraries to be used for Tcl.
+ */
+
+#ifdef NEED_MATHERR
+extern int matherr();
+int *tclDummyMathPtr = (int *)matherr;
+#endif
+
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * main --
+ *
+ * This is the main program for the application.
+ *
+ * Results:
+ * None: Tk_Main never returns here, so this procedure never
+ * returns either.
+ *
+ * Side effects:
+ * Whatever the application does.
+ *
+ *----------------------------------------------------------------------
+ */
+int
+main(argc, argv)
+ int argc; /* Number of command-line arguments. */
+ char **argv; /* Vector of command-line arguments. */
+{
+
+#ifdef TCL_ONLY
+ Tcl_Main(argc, argv, Tcl_AppInit);
+#else
+ Tk_Main(argc, argv, Tcl_AppInit);
+#endif
+ return 0; /* Needed only to prevent compiler warning. */
+}
+
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * Tcl_AppInit --
+ *
+ * This procedure performs application-specific initialization.
+ * Most applications, especially those that incorporate additional
+ * packages, will have their own version of this procedure.
+ *
+ * Results:
+ * Returns a standard Tcl completion code, and leaves an error
+ * message in interp->result if an error occurs.
+ *
+ * Side effects:
+ * Depends on the startup script.
+ *
+ *----------------------------------------------------------------------
+ */
+
+int
+Tcl_AppInit(interp)
+ Tcl_Interp *interp; /* Interpreter for application. */
+{
+#ifdef TCLLIBPATH
+ /*
+ * It seems that some distributions of Tcl don't compile-in a
+ * default location of the library. This causes Tcl_Init to fail
+ * if bltwish and bltsh are moved to another directory. The
+ * workaround is to set the magic variable "tclDefaultLibrary".
+ */
+ Tcl_SetVar(interp, "tclDefaultLibrary", TCLLIBPATH, TCL_GLOBAL_ONLY);
+#endif
+ if (Tcl_Init(interp) == TCL_ERROR) {
+ return TCL_ERROR;
+ }
+#ifndef TCL_ONLY
+ if (Tk_Init(interp) == TCL_ERROR) {
+ return TCL_ERROR;
+ }
+#endif
+ /*
+ * Call the init procedures for included packages. Each call should
+ * look like this:
+ *
+ * if (Mod_Init(interp) == TCL_ERROR) {
+ * return TCL_ERROR;
+ * }
+ *
+ * where "Mod" is the name of the module.
+ */
+ if (Blt_Init(interp) == TCL_ERROR) {
+ return TCL_ERROR;
+ }
+ Tcl_StaticPackage(interp, "BLT", Blt_Init, Blt_SafeInit);
+ /*
+
+ * Call Tcl_CreateCommand for application-specific commands, if
+ * they weren't already created by the init procedures called above.
+ */
+
+ /*
+ * Specify a user-specific startup file to invoke if the application
+ * is run interactively. Typically the startup file is "~/.apprc"
+ * where "app" is the name of the application. If this line is deleted
+ * then no user-specific startup file will be run under any conditions.
+ */
+
+ Tcl_SetVar(interp, "tcl_rcFileName", "~/.wishrc", TCL_GLOBAL_ONLY);
+ return TCL_OK;
+}