Merge pull request #1054 from tarun-t/fix/build-gcc15-dpdk25.11

Fix build with GCC 15+ and DPDK 25.11+

Author: jfb8856606

lib/ff_dpdk_if.c

@@ -217,7 +217,8 @@ check_all_ports_link_status(void)
         for (i = 0; i < nb_ports; i++) {
             uint16_t portid = ff_global_cfg.dpdk.portid_list[i];
             memset(&link, 0, sizeof(link));
-            rte_eth_link_get_nowait(portid, &link);
+            if (rte_eth_link_get_nowait(portid, &link) < 0)
+                link.link_status = 0;
 
             /* print link status if flag set */
             if (print_flag == 1) {

mk/kern.pre.mk

@@ -109,6 +109,7 @@ IMACROS_FILTER+= __CYGWIN__ __CYGWIN32__
 IMACROS_FILTER+= __FreeBSD__
 IMACROS_FILTER+= __linux __linux__ __gnu__linux__ linux
 IMACROS_FILTER+= _WIN32 _WIN64
+IMACROS_FILTER+= __STDC_EMBED_EMPTY__ __STDC_EMBED_FOUND__ __STDC_EMBED_NOT_FOUND__
 
 SPACE= $(eval) $(eval)
 IMACROS_FILTER_EXPR:= $(subst ${SPACE},|,$(strip ${IMACROS_FILTER}))