libbb: use a wrapper around sysconf(_SC_CLK_TCK) to save a few bytes

function                                             old     new   delta
bb_sc_clk_tck                                          -      10     +10
timescmd                                             118     113      -5
print_route                                         1763    1758      -5
mpstat_main                                         1288    1283      -5
iostat_main                                         1947    1942      -5
INET_setroute                                        879     871      -8
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 0/5 up/down: 10/-28)            Total: -18 bytes
Signed-off-by: Bartosz Golaszewski <bartekgola@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

2 files changed, 2 insertions, 2 deletions

diff --git a/networking/libiproute/iproute.c b/networking/libiproute/iproute.c
index f8a67d9ee..ec4d8ba03 100644
--- a/networking/libiproute/iproute.c
+++ b/networking/libiproute/iproute.c
@@ -73,7 +73,7 @@ static unsigned get_hz(void)
                 fclose(fp);
         }
         if (!hz_internal)
-                hz_internal = sysconf(_SC_CLK_TCK);
+                hz_internal = bb_clk_tck();
         return hz_internal;
 }
 
diff --git a/networking/route.c b/networking/route.c
index 4235ea72c..24cc2eb5a 100644
--- a/networking/route.c
+++ b/networking/route.c
@@ -283,7 +283,7 @@ static NOINLINE void INET_setroute(int action, char **args)
                 if (k == KW_IPVx_IRTT) {
                         rt->rt_flags |= RTF_IRTT;
                         rt->rt_irtt = xatoul(args_m1);
-                        rt->rt_irtt *= (sysconf(_SC_CLK_TCK) / 100);    /* FIXME */
+                        rt->rt_irtt *= (bb_clk_tck() / 100);    /* FIXME */
 #if 0                                   /* FIXME: do we need to check anything of this? */
                         if (rt->rt_irtt < 1 || rt->rt_irtt > (120 * HZ)) {
                                 bb_error_msg_and_die("bad irtt");