lsfd: add configure check for BPF_LINK_CREATE

Signed-off-by: WanBingjiang <wanbingjiang@webray.com.cn>

diff --git a/configure.ac b/configure.ac
index f3661932d26818c5cab4f331405a0724f1c0068e..2e1a60edf821c8c793a600e64ef1b5aa411b588a 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -586,6 +586,11 @@ AC_CHECK_DECL([BPF_OBJ_NAME_LEN],
 AC_CHECK_DECL([BPF_TAG_SIZE],
              [have_bpf_tag_size=yes], [have_bpf_tag_size=no],
              [#include <linux/bpf.h>])
+AC_CHECK_DECL([BPF_LINK_CREATE],
+             [have_bpf_link_create=yes], [have_bpf_link_create=no],
+             [#include <linux/bpf.h>])
+AS_IF([test "x$have_bpf_link_create" = xyes],
+             [AC_DEFINE([HAVE_BPF_LINK_CREATE], [1], [Define if BPF_LINK_CREATE is available])])
 
 AC_CHECK_DECL([TIOCGLCKTRMIOS],
              [have_tiocglcktrmios=yes], [have_tiocglcktrmios=no],