--- ray/src/common/rexpr.c	1991/07/16 10:51:42	1.2
+++ ray/src/common/rexpr.c	1991/11/12 16:54:41	2.1
@@ -28,6 +28,8 @@ static char SCCSid[] = "$SunId$ LBL";
 #define  memcpy(to,from,len)	bcopy(from,to,len)
 #endif
 
+static int     advance(), cclass();
+
 static char    expbuf[ESIZE];
 static int     iflag;
 static int     circf;
@@ -245,7 +247,7 @@ register char *ep;
                 return(0);
 
         case CBRC:
-                if (lp == expbuf)
+                if (lp == alp)
                         continue;
                 if ((isalnum(*lp) || *lp == '_') && !(isalnum(lp[-1]) || lp[-1] == '_'))
                         continue;