1 files changed, 113 insertions, 0 deletions
diff --git a/generic/tclStubLib.c b/generic/tclStubLib.c
new file mode 100644
index 0000000..ad66578
--- /dev/null
+++ b/generic/tclStubLib.c
@@ -0,0 +1,113 @@
+/* 
+ * tclStubLib.c --
+ *
+ *	Stub object that will be statically linked into extensions that wish
+ *	to access Tcl.
+ *
+ * Copyright (c) 1998-1999 by Scriptics Corporation.
+ * Copyright (c) 1998 Paul Duffin.
+ *
+ * See the file "license.terms" for information on usage and redistribution
+ * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
+ *
+ * RCS: @(#) $Id: tclStubLib.c,v 1.2.2.1 1999/03/05 20:18:06 stanton Exp $
+ */
+
+/*
+ * We need to ensure that we use the stub macros so that this file contains
+ * no references to any of the stub functions.  This will make it possible
+ * to build an extension that references Tcl_InitStubs but doesn't end up
+ * including the rest of the stub functions.
+ */
+
+#ifndef USE_TCL_STUBS
+#define USE_TCL_STUBS
+#endif
+#undef USE_TCL_STUB_PROCS
+
+#include "tclInt.h"
+#include "tclPort.h"
+
+/*
+ * Ensure that Tcl_InitStubs is built as an exported symbol.  The other stub
+ * functions should be built as non-exported symbols.
+ */
+
+#undef TCL_STORAGE_CLASS
+#define TCL_STORAGE_CLASS DLLEXPORT
+
+TclStubs *tclStubsPtr;
+TclPlatStubs *tclPlatStubsPtr;
+TclIntStubs *tclIntStubsPtr;
+TclIntPlatStubs *tclIntPlatStubsPtr;
+
+static TclStubs *	HasStubSupport _ANSI_ARGS_((Tcl_Interp *interp));
+
+static TclStubs *
+HasStubSupport (interp)
+    Tcl_Interp *interp;
+{
+    Interp *iPtr = (Interp *) interp;
+
+    if (iPtr->stubTable && (iPtr->stubTable->magic == TCL_STUB_MAGIC)) {
+	return iPtr->stubTable;
+    }
+    interp->result = "This interpreter does not support stubs-enabled extensions.";
+    interp->freeProc = TCL_STATIC;
+
+    return NULL;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * Tcl_InitStubs --
+ *
+ *	Tries to initialise the stub table pointers and ensures that
+ *	the correct version of Tcl is loaded.
+ *
+ * Results:
+ *	The actual version of Tcl that satisfies the request, or
+ *	NULL to indicate that an error occurred.
+ *
+ * Side effects:
+ *	Sets the stub table pointers.
+ *
+ *----------------------------------------------------------------------
+ */
+
+char *
+Tcl_InitStubs (interp, version, exact)
+    Tcl_Interp *interp;
+    char *version;
+    int exact;
+{
+    char *actualVersion;
+    TclStubs *tmp;
+    
+    if (!tclStubsPtr) {
+	tclStubsPtr = HasStubSupport(interp);
+	if (!tclStubsPtr) {
+            return NULL;
+        }
+    }
+
+    actualVersion = Tcl_PkgRequireEx(interp, "Tcl", version, exact,
+	    (ClientData *) &tmp);
+    if (actualVersion == NULL) {
+	tclStubsPtr = NULL;
+	return NULL;
+    }
+
+    if (tclStubsPtr->hooks) {
+	tclPlatStubsPtr = tclStubsPtr->hooks->tclPlatStubs;
+	tclIntStubsPtr = tclStubsPtr->hooks->tclIntStubs;
+	tclIntPlatStubsPtr = tclStubsPtr->hooks->tclIntPlatStubs;
+    } else {
+	tclPlatStubsPtr = NULL;
+	tclIntStubsPtr = NULL;
+	tclIntPlatStubsPtr = NULL;
+    }
+    
+    return actualVersion;
+}