X-Git-Url: https://pd.if.org/git/?a=blobdiff_plain;f=internals%2F_PDCLIB_aux.h;h=f71fd47f8e5563db83e21c130cbc92c365117915;hb=b1fc26afebd4d557ff89a44bc21767a8704c3809;hp=71196a566b64e83fccd2709c64cd7161acae8550;hpb=f93d55176e4db9edfb1840054169003bcca4d1fb;p=pdclib

diff --git a/internals/_PDCLIB_aux.h b/internals/_PDCLIB_aux.h
index 71196a5..f71fd47 100644
--- a/internals/_PDCLIB_aux.h
+++ b/internals/_PDCLIB_aux.h
@@ -1,11 +1,12 @@
-/* $Id$ */
-
 /* Auxiliary PDCLib code <_PDCLIB_aux.h>
 
    This file is part of the Public Domain C Library (PDCLib).
    Permission is granted to use, modify, and / or redistribute at will.
 */
 
+#ifndef _PDCLIB_AUX_H
+#define _PDCLIB_AUX_H _PDCLIB_AUX_H
+
 /* -------------------------------------------------------------------------- */
 /* You should not have to edit anything in this file; if you DO have to, it   */
 /* would be considered a bug / missing feature: notify the author(s).         */
@@ -62,5 +63,5 @@
 
 #define _PDCLIB_symbol2value( x ) #x
 #define _PDCLIB_symbol2string( x ) _PDCLIB_symbol2value( x )
-#define _PDCLIB_symbol2identity( x ) x
 
+#endif