}
int *matchtbl,*parenttbl;
-void make_naivetbl(pb *B,int n)
+static void make_naivetbl(pb *B,int n)
{
int i,v;
int *stack,s;
int depthtbl[(2*ETW+1)*(1<<ETW)];
int inited = 0;
-void make_matchtbl(void)
+static void make_matchtbl(void)
{
int i,j,x,r;
int m,M;