/*
 * Directory in which to look for packages (each package is typically
 * installed as a subdirectory of this directory). The symbol is defined by
 * Makefile.
 */

static char pkgPath[sizeof(TCL_PACKAGE_PATH)+200] = TCL_PACKAGE_PATH;
static char pkgPath1[sizeof(TCL_PACKAGE_PATH)+200] = TCL_PACKAGE_PATH;

/*
 * The following table is used to map from Unix locale strings to encoding
 * files. If HAVE_LANGINFO is defined, then this is a fallback table when the
 * result from nl_langinfo isn't a recognized encoding. Otherwise this is the
 * first list checked for a mapping from env encoding to Tcl encoding name.
 */

    static OSVERSIONINFOW osInfo;
    static int osInfoInitialized = 0;
    char buffer[TCL_INTEGER_SPACE * 2];
#elif !defined(NO_UNAME)
    struct utsname name;
#endif
    int unameOK;
    const char *p, *q;
    Tcl_DString ds;
    Tcl_Obj *pkgListObj = Tcl_NewObj();

#ifdef HAVE_COREFOUNDATION
    char tclLibPath[MAXPATHLEN + 1];

    /*
     * Set msgcat fallback locale to current CFLocale identifier.
     */

#if MAC_OS_X_VERSION_MAX_ALLOWED > 1020
    InitMacLocaleInfoVar(CFLocaleCopyCurrent, CFLocaleGetIdentifier, interp);
#endif /* MAC_OS_X_VERSION_MAX_ALLOWED > 1020 */

    if (MacOSXGetLibraryPath(interp, MAXPATHLEN, tclLibPath) == TCL_OK) {
	const char *str;
	CFBundleRef bundleRef;
	Tcl_DString ds;

	Tcl_SetVar2(interp, "tclDefaultLibrary", NULL, tclLibPath, TCL_GLOBAL_ONLY);
	Tcl_SetVar2(interp, "tcl_pkgPath", NULL, tclLibPath, TCL_GLOBAL_ONLY);
	Tcl_SetVar2(interp, "tcl_pkgPath", NULL, " ",
		TCL_GLOBAL_ONLY | TCL_APPEND_VALUE);

	Tcl_ListObjAppendElement(NULL, pkgListObj, Tcl_NewStringObj(tclLibPath, -1));
	str = TclGetEnv("DYLD_FRAMEWORK_PATH", &ds);
	if ((str != NULL) && (str[0] != '\0')) {
	    char *p = Tcl_DStringValue(&ds);

	    p = Tcl_DStringValue(&ds);
	    while ((q = strchr(p, ':')) != NULL) {
	    /*
	     * Convert DYLD_FRAMEWORK_PATH from colon to space separated.
	     */

		Tcl_ListObjAppendElement(NULL, pkgListObj, Tcl_NewStringObj(p, q-p));
		p = q+1;
	    }
	    do {
		if (*p == ':') {
	    if (*p) {
		    *p = ' ';
		}
		Tcl_ListObjAppendElement(NULL, pkgListObj, Tcl_NewStringObj(p, -1));
	    }
	    } while (*p++);
	    Tcl_SetVar2(interp, "tcl_pkgPath", NULL, Tcl_DStringValue(&ds),
		    TCL_GLOBAL_ONLY | TCL_APPEND_VALUE);
	    Tcl_SetVar2(interp, "tcl_pkgPath", NULL, " ",
		    TCL_GLOBAL_ONLY | TCL_APPEND_VALUE);
	    Tcl_DStringFree(&ds);
	}
	bundleRef = CFBundleGetMainBundle();
	if (bundleRef) {
	    CFURLRef frameworksURL;
	    Tcl_StatBuf statBuf;

	    frameworksURL = CFBundleCopyPrivateFrameworksURL(bundleRef);
	    if (frameworksURL) {
		if (CFURLGetFileSystemRepresentation(frameworksURL, TRUE,
			(unsigned char*) tclLibPath, MAXPATHLEN) &&
			! TclOSstat(tclLibPath, &statBuf) &&
			S_ISDIR(statBuf.st_mode)) {
		    Tcl_SetVar2(interp, "tcl_pkgPath", NULL, tclLibPath,
			    TCL_GLOBAL_ONLY | TCL_APPEND_VALUE);
		    Tcl_SetVar2(interp, "tcl_pkgPath", NULL, " ",
		    Tcl_ListObjAppendElement(NULL, pkgListObj, Tcl_NewStringObj(tclLibPath, -1));
			    TCL_GLOBAL_ONLY | TCL_APPEND_VALUE);
		}
		CFRelease(frameworksURL);
	    }
	    frameworksURL = CFBundleCopySharedFrameworksURL(bundleRef);
	    if (frameworksURL) {
		if (CFURLGetFileSystemRepresentation(frameworksURL, TRUE,
			(unsigned char*) tclLibPath, MAXPATHLEN) &&
			! TclOSstat(tclLibPath, &statBuf) &&
			S_ISDIR(statBuf.st_mode)) {
		    Tcl_SetVar2(interp, "tcl_pkgPath", NULL, tclLibPath,
			    TCL_GLOBAL_ONLY | TCL_APPEND_VALUE);
		    Tcl_SetVar2(interp, "tcl_pkgPath", NULL, " ",
		    Tcl_ListObjAppendElement(NULL, pkgListObj, Tcl_NewStringObj(tclLibPath, -1));
			    TCL_GLOBAL_ONLY | TCL_APPEND_VALUE);
		}
		CFRelease(frameworksURL);
	    }
	}
	Tcl_SetVar2(interp, "tcl_pkgPath", NULL, pkgPath,
		TCL_GLOBAL_ONLY | TCL_APPEND_VALUE);
    } else
    }
#endif /* HAVE_COREFOUNDATION */
    {
	Tcl_SetVar2(interp, "tcl_pkgPath", NULL, pkgPath, TCL_GLOBAL_ONLY);
    }
	p = pkgPath1;
	while ((q = strchr(p, ':')) != NULL) {
		Tcl_ListObjAppendElement(NULL, pkgListObj, Tcl_NewStringObj(p, q-p));
		p = q+1;
	}
	if (*p) {
	    Tcl_ListObjAppendElement(NULL, pkgListObj, Tcl_NewStringObj(p, -1));
	}
	Tcl_ObjSetVar2(interp, Tcl_NewStringObj("tcl_pkgPath", -1), NULL, pkgListObj, TCL_GLOBAL_ONLY);

#ifdef DJGPP
    Tcl_SetVar2(interp, "tcl_platform", "platform", "dos", TCL_GLOBAL_ONLY);
#else
    Tcl_SetVar2(interp, "tcl_platform", "platform", "unix", TCL_GLOBAL_ONLY);
#endif

     * Copy the username of the real user (according to getuid()) into
     * tcl_platform(user).
     */

    {
	struct passwd *pwEnt = TclpGetPwUid(getuid());
	const char *user;
	Tcl_DString ds;

	if (pwEnt == NULL) {
	    user = "";
	    Tcl_DStringInit(&ds);	/* ensure cleanliness */
	} else {
	    user = Tcl_ExternalToUtfDString(NULL, pwEnt->pw_name, -1, &ds);
	}