--- iv-0.1.9/include/xsw_ctype.h.old	2002-10-30 14:59:50.000000000 -0600
+++ iv-0.1.9/include/xsw_ctype.h	2002-10-30 14:59:10.000000000 -0600
@@ -6,7 +6,7 @@
 
 #ifndef isblank
 //extern bool isblank(char c);
-extern bool isblank(int c);
+extern int isblank(int c);
 #endif
 
 #else