cleanup a [-Wparentheses]

diff --git a/lib/common/ns.c b/lib/common/ns.c
index eaf435db57b0a3d0ad132ff9d17c5eabe2e22476..282f2ba52f6d6020316f00db6631910c798d5589 100644 (file)
--- a/lib/common/ns.c
+++ b/lib/common/ns.c
@@ -693,7 +693,7 @@ static void TB_balance(void)
     nrank = N_NEW(Maxrank + 1, int);
     for (i = 0; i <= Maxrank; i++)
        nrank[i] = 0;
-    if (s = agget(G,"TBbalance")) {
+    if ( (s = agget(G,"TBbalance")) ) {
          if (streq(s,"min")) adj = 1;
          else if (streq(s,"max")) adj = 2;
          if (adj) for (n = GD_nlist(G); n; n = ND_next(n))