Hi,
I'm running into multiple errors while trying to build busybox v1.36.1
on Ubuntu 24.04.

  CC      coreutils/realpath.o
networking/tc.c: In function ‘cbq_print_opt’:
networking/tc.c:236:27: error: ‘TCA_CBQ_MAX’ undeclared (first use in
this function); did you mean ‘TCA_CBS_MAX’?
  236 |         struct rtattr *tb[TCA_CBQ_MAX+1];
      |                           ^~~~~~~~~~~
      |                           TCA_CBS_MAX
networking/tc.c:236:27: note: each undeclared identifier is reported
only once for each function it appears in
miscutils/watchdog.c: In function ‘watchdog_main’:
  CC      util-linux/volume_id/ubifs.o
miscutils/watchdog.c:161:17: warning: ignoring return value of ‘write’
declared with attribute ‘warn_unused_result’ [-Wunused-result]
  161 |                 write(3, "", 1); /* write zero byte */
      |                 ^~~~~~~~~~~~~~~
miscutils/watchdog.c: In function ‘shutdown_watchdog’:
miscutils/watchdog.c:71:9: warning: ignoring return value of ‘write’
declared with attribute ‘warn_unused_result’ [-Wunused-result]
   71 |         write(3, &V, 1);  /* Magic, see watchdog-api.txt in kernel */
      |         ^~~~~~~~~~~~~~~
  CC      libbb/get_volsize.o
networking/tc.c:249:16: error: ‘TCA_CBQ_RATE’ undeclared (first use in
this function); did you mean ‘TCA_TBF_RATE64’?
  249 |         if (tb[TCA_CBQ_RATE]) {
      |                ^~~~~~~~~~~~
      |                TCA_TBF_RATE64
  CC      coreutils/rm.o
  CC      networking/tcpudp_perhost.o
  CC      util-linux/hwclock.o
  CC      util-linux/volume_id/udf.o
networking/tc.c:255:16: error: ‘TCA_CBQ_LSSOPT’ undeclared (first use
in this function)
  255 |         if (tb[TCA_CBQ_LSSOPT]) {
      |                ^~~~~~~~~~~~~~
networking/tc.c:256:61: error: invalid application of ‘sizeof’ to
incomplete type ‘struct tc_cbq_lssopt’
  256 |                 if (RTA_PAYLOAD(tb[TCA_CBQ_LSSOPT]) < sizeof(*lss))
      |                                                             ^
  CC      util-linux/volume_id/util.o
  CC      libbb/getopt32.o
networking/tc.c:261:16: error: ‘TCA_CBQ_WRROPT’ undeclared (first use
in this function)
  261 |         if (tb[TCA_CBQ_WRROPT]) {
      |                ^~~~~~~~~~~~~~
networking/tc.c:262:61: error: invalid application of ‘sizeof’ to
incomplete type ‘struct tc_cbq_wrropt’
  262 |                 if (RTA_PAYLOAD(tb[TCA_CBQ_WRROPT]) < sizeof(*wrr))
      |                                                             ^
  AR      miscutils/lib.a
networking/tc.c:267:16: error: ‘TCA_CBQ_FOPT’ undeclared (first use in
this function)
  267 |         if (tb[TCA_CBQ_FOPT]) {
      |                ^~~~~~~~~~~~
  CC      networking/telnet.o
networking/tc.c:268:59: error: invalid application of ‘sizeof’ to
incomplete type ‘struct tc_cbq_fopt’
  268 |                 if (RTA_PAYLOAD(tb[TCA_CBQ_FOPT]) < sizeof(*fopt))
      |                                                           ^
  CC      util-linux/ionice.o
networking/tc.c:273:16: error: ‘TCA_CBQ_OVL_STRATEGY’ undeclared
(first use in this function)
  273 |         if (tb[TCA_CBQ_OVL_STRATEGY]) {
      |                ^~~~~~~~~~~~~~~~~~~~
  CC      networking/telnetd.o
networking/tc.c:274:67: error: invalid application of ‘sizeof’ to
incomplete type ‘struct tc_cbq_ovl’
  274 |                 if (RTA_PAYLOAD(tb[TCA_CBQ_OVL_STRATEGY]) <
sizeof(*ovl))
      |                                                                   ^
networking/tc.c:277:50: error: invalid application of ‘sizeof’ to
incomplete type ‘struct tc_cbq_ovl’
  277 |                                 (unsigned) sizeof(*ovl));
      |                                                  ^
networking/tc.c:293:23: error: invalid use of undefined type ‘struct
tc_cbq_lssopt’
  293 |         if (lss && lss->flags) {
      |                       ^~
networking/tc.c:296:24: error: invalid use of undefined type ‘struct
tc_cbq_lssopt’
  296 |                 if (lss->flags&TCF_CBQ_LSS_BOUNDED) {
      |                        ^~
  CC      util-linux/volume_id/volume_id.o
networking/tc.c:296:32: error: ‘TCF_CBQ_LSS_BOUNDED’ undeclared (first
use in this function)
  296 |                 if (lss->flags&TCF_CBQ_LSS_BOUNDED) {
      |                                ^~~~~~~~~~~~~~~~~~~
networking/tc.c:300:24: error: invalid use of undefined type ‘struct
tc_cbq_lssopt’
  300 |                 if (lss->flags&TCF_CBQ_LSS_ISOLATED) {
      |                        ^~
  CC      libbb/getopt_allopts.o
networking/tc.c:300:32: error: ‘TCF_CBQ_LSS_ISOLATED’ undeclared
(first use in this function)
  300 |                 if (lss->flags&TCF_CBQ_LSS_ISOLATED) {
      |                                ^~~~~~~~~~~~~~~~~~~~
networking/tc.c:308:24: error: invalid use of undefined type ‘struct
tc_cbq_wrropt’
  308 |                 if (wrr->priority != TC_CBQ_MAXPRIO)
      |                        ^~
  CC      util-linux/ipcrm.o
  CC      util-linux/volume_id/xfs.o
  CC      networking/tftp.o
networking/tc.c:308:38: error: ‘TC_CBQ_MAXPRIO’ undeclared (first use
in this function)
  308 |                 if (wrr->priority != TC_CBQ_MAXPRIO)
      |                                      ^~~~~~~~~~~~~~
networking/tc.c:309:46: error: invalid use of undefined type ‘struct
tc_cbq_wrropt’
  309 |                         printf("prio %u", wrr->priority);
      |                                              ^~
networking/tc.c:313:43: error: invalid use of undefined type ‘struct
tc_cbq_wrropt’
  313 |                         printf("/%u ", wrr->cpriority);
      |                                           ^~
networking/tc.c:314:32: error: invalid use of undefined type ‘struct
tc_cbq_wrropt’
  314 |                         if (wrr->weight != 1) {
      |                                ^~
networking/tc.c:315:65: error: invalid use of undefined type ‘struct
tc_cbq_wrropt’
  315 |                                 print_rate(buf, sizeof(buf),
wrr->weight);
      |                                                                 ^~
networking/tc.c:318:32: error: invalid use of undefined type ‘struct
tc_cbq_wrropt’
  318 |                         if (wrr->allot)
      |                                ^~
networking/tc.c:319:57: error: invalid use of undefined type ‘struct
tc_cbq_wrropt’
  319 |                                 printf("allot %ub ", wrr->allot);
      |                                                         ^~
networking/tc.c:236:24: warning: unused variable ‘tb’ [-Wunused-variable]
  236 |         struct rtattr *tb[TCA_CBQ_MAX+1];
      |                        ^~
  CC      coreutils/rmdir.o
make[1]: *** [scripts/Makefile.build:197: networking/tc.o] Error 1
make[1]: *** Waiting for unfinished jobs....

not really sure what's missing. any help would be appreciated !


Thank you,

Pavan Kumar
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