[git commit] Complie libbb/duration.c if ping[6] is selected

[Denys Vlasenko]

commit: https://git.busybox.net/busybox/commit/?id=277e00ed12264f7ae1d17f2cbc8be40d3dc0655d
branch: https://git.busybox.net/busybox/commit/?id=refs/heads/master

Signed-off-by: Denys Vlasenko <vda.linux at googlemail.com>
---
 libbb/duration.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/libbb/duration.c b/libbb/duration.c
index 765a1e9fe..2f272771f 100644
--- a/libbb/duration.c
+++ b/libbb/duration.c
@@ -15,6 +15,8 @@
 //kbuild:lib-$(CONFIG_SLEEP)   += duration.o
 //kbuild:lib-$(CONFIG_TOP)     += duration.o
 //kbuild:lib-$(CONFIG_TIMEOUT) += duration.o
+//kbuild:lib-$(CONFIG_PING)    += duration.o
+//kbuild:lib-$(CONFIG_PING6)   += duration.o
 
 #include "libbb.h"