--- common/compare.c--	Fri Oct  7 18:05:04 1994
+++ common/compare.c	Thu Apr 23 12:53:41 1998
@@ -326,10 +326,10 @@
 }
 
 
-static int isblank _((char *s));
+static int isblank_ _((char *s));
 
 static int
-isblank(s)
+isblank_(s)
 	char	*s;
 {
 	while (*s)
@@ -387,7 +387,7 @@
 			((linenumber % READBLABINTERVAL) == 0)
 		)
 			error("[%ld lines]", linenumber);
-		if (fc.blankflag && isblank(cp))
+		if (fc.blankflag && isblank_(cp))
 			continue;
 		if (linecount >= linesavail)
 		{
