Index: b.c
--- b.c.orig	2005-02-08 20:21:44 +0100
+++ b.c	2006-09-15 19:24:23 +0200
@@ -720,7 +720,7 @@
 
 #ifndef HAS_ISBLANK
 
-int (isblank)(int c)
+static int (awk_isblank)(int c)
 {
 	return c==' ' || c=='\t';
 }
@@ -734,7 +734,7 @@
 } charclasses[] = {
 	{ "alnum",	5,	isalnum },
 	{ "alpha",	5,	isalpha },
-	{ "blank",	5,	isblank },
+	{ "blank",	5,	awk_isblank },
 	{ "cntrl",	5,	iscntrl },
 	{ "digit",	5,	isdigit },
 	{ "graph",	5,	isgraph },