kronoset: Disable sign-compare with clang

clang isn't suppressing warnings from system headers like it should
Fixes
../../git/libknet/transport_udp.c:326:48: error: comparison of integers of different signs: 'unsigned long' and 'int' [-Werror,-Wsign-compare]
                for (cmsg = CMSG_FIRSTHDR(&msg);cmsg; cmsg = CMSG_NXTHDR(&msg, cmsg)) {
                                                             ^~~~~~~~~~~~~~~~~~~~~~~

Signed-off-by: Khem Raj <raj.khem@gmail.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/meta-networking/recipes-extended/kronosnet/kronosnet_1.15.bb b/meta-networking/recipes-extended/kronosnet/kronosnet_1.15.bb
index 24aa27a87b..6bf268da9d 100644
--- a/meta-networking/recipes-extended/kronosnet/kronosnet_1.15.bb
+++ b/meta-networking/recipes-extended/kronosnet/kronosnet_1.15.bb
@@ -15,3 +15,9 @@ SRC_URI = "git://github.com/kronosnet/kronosnet;protocol=https;branch=stable1"
 inherit autotools
 
 S = "${WORKDIR}/git"
+
+# libknet/transport_udp.c:326:48: error: comparison of integers of different signs: 'unsigned long' and 'int' [-Werror,-Wsign-compare]
+# for (cmsg = CMSG_FIRSTHDR(&msg);cmsg; cmsg = CMSG_NXTHDR(&msg, cmsg)) {
+#                                                             ^~~~~~~~~~~~~~~~~~~~~~~
+CFLAGS_append_toolchain-clang = " -Wno-sign-compare"
+