File joe-3.1-fix_isblanck_argument.patch of Package joe

--- b.c.orig	2008-11-02 21:59:06.000000000 +0100
+++ b.c		2009-10-20 12:18:46.443802718 +0200
@@ -601,9 +601,10 @@ int piseow(P *p)
 int pisblank(P *p)
 {
 	P *q = pdup(p, USTR "pisblank");
+	int brc_result;
 
 	p_goto_bol(q);
-	while (joe_isblank(p->b->o.charmap,brc(q)))
+	while (((brc_result = brc(q)) != MAXINT) && joe_isblank(p->b->o.charmap,brc(q)))
 		pgetb(q);
 	if (piseol(q)) {
 		prm(q);
@@ -635,9 +636,10 @@ long pisindent(P *p)
 {
 	P *q = pdup(p, USTR "pisindent");
 	long col;
+	int brc_result;
 
 	p_goto_bol(q);
-	while (joe_isblank(p->b->o.charmap,brc(q)))
+	while (((brc_result = brc(q)) != MAXINT) && joe_isblank(p->b->o.charmap,brc(q)))
 		pgetc(q);
 	col = q->col;
 	prm(q);