diff -uNr tcltk-8.0.4/tk8.0.4/generic/tkFont.c tcltk-8.0.4.new/tk8.0.4/generic/tkFont.c
--- tcltk-8.0.4/tk8.0.4/generic/tkFont.c	Sat Oct 11 00:04:59 1997
+++ tcltk-8.0.4.new/tk8.0.4/generic/tkFont.c	Thu Aug 13 21:03:52 1998
@@ -17,6 +17,15 @@
 #include "tkInt.h"
 #include "tkFont.h"
 
+#ifdef __PPC__
+static int
+_isspace(char c) {
+       return (isspace(c));
+}
+#undef  isspace
+#define isspace(c) _isspace(c)
+#endif
+
 /*
  * The following structure is used to keep track of all the fonts that
  * exist in the current application.  It must be stored in the