Eric Dumazet [off-list ref] writes:


[...]

    CC       iplink_xstats.o
    CC       ipseg6.o
    LINK     ip
xfrm_state.o: In function `xfrm_state_modify.constprop.3':
xfrm_state.c:(.text+0x2458): undefined reference to `strlcpy'
ipnetns.o: In function `netns_identify_pid':
ipnetns.c:(.text+0x12e0): undefined reference to `strlcpy'
ipxfrm.o: In function `xfrm_state_info_print':
ipxfrm.c:(.text+0x1c3b): undefined reference to `strlcat'
ipxfrm.c:(.text+0x1c4d): undefined reference to `strlcat'
ipxfrm.c:(.text+0x215f): undefined reference to `strlcat'
ipxfrm.o: In function `xfrm_policy_info_print':
ipxfrm.c:(.text+0x2299): undefined reference to `strlcat'
ipxfrm.c:(.text+0x22ab): undefined reference to `strlcat'
iproute_lwtunnel.o: In function `parse_encap_seg6':
iproute_lwtunnel.c:(.text+0xa8f): undefined reference to `strlcpy'
ipvrf.o: In function `vrf_switch':
ipvrf.c:(.text+0x87d): undefined reference to `strlcpy'
ipvrf.o: In function `vrf_identify.constprop.2':
ipvrf.c:(.text+0xe4d): undefined reference to `strlcpy'
../lib/libutil.a(bpf.o): In function `bpf_find_mntpt.constprop.10':
bpf.c:(.text+0x766): undefined reference to `strlcpy'
../lib/libutil.a(bpf.o): In function `bpf_get_work_dir':
bpf.c:(.text+0xb07): undefined reference to `strlcpy'
../lib/libutil.a(fs.o):fs.c:(.text+0x44f): more undefined references to
`strlcpy' follow
collect2: error: ld returned 1 exit status
make[1]: *** [ip] Error 1
make[1]: Leaving directory `/usr/src/iproute2/ip'
make: *** [all] Error 2

Latest iproute2 has config.mk instead of Config, where a new kludge
-DNEED_STRLCPY has been added.