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After issuing 'gmake' cmd following error msgs appears:

root@qual-solaris11-A:/opt/hping3/hping3-20051105# gmake
gcc -c -O2 -Wall -DUSE_TCL -g main.c
gcc -c -O2 -Wall -DUSE_TCL -g getifname.c
getifname.c: In function ‘get_output_if’:
getifname.c:343:35: warning: pointer targets in passing argument 3 of ‘getsockname’ differ in signedness [-Wpointer-sign]
if (getsockname(sock_rt, (struct sockaddr *)&iface_out, &len) == -1 ) {
^
In file included from getifname.c:14:0:
/usr/include/sys/socket.h:517:12: note: expected ‘Psocklen_t’ but argument is of type ‘int *’
extern int getsockname(int, struct sockaddr *_RESTRICT_KYWD, Psocklen_t);
^
getifname.c: In function ‘get_if_name’:
getifname.c:61:11: warning: ‘sa.sin_addr.S_un.S_addr’ may be used uninitialized in this function [-Wmaybe-uninitialized]
printf("DEBUG: Output interface address: %s\n",
^
gcc -c -O2 -Wall -DUSE_TCL -g getlhs.c
gcc -c -O2 -Wall -DUSE_TCL -g parseoptions.c
gcc -c -O2 -Wall -DUSE_TCL -g datafiller.c
gcc -c -O2 -Wall -DUSE_TCL -g datahandler.c
gcc -c -O2 -Wall -DUSE_TCL -g binding.c
gcc -c -O2 -Wall -DUSE_TCL -g logicmp.c
gcc -c -O2 -Wall -DUSE_TCL -g waitpacket.c
waitpacket.c: In function ‘wait_packet’:
waitpacket.c:546:14: warning: ‘tstamp’ may be used uninitialized in this function [-Wmaybe-uninitialized]
last_tstamp = tstamp;
^
waitpacket.c:469:8: note: ‘tstamp’ was declared here
__u32 tstamp, echo;
^
gcc -c -O2 -Wall -DUSE_TCL -g sendip.c
gcc -c -O2 -Wall -DUSE_TCL -g sendicmp.c
gcc -c -O2 -Wall -DUSE_TCL -g sendudp.c
gcc -c -O2 -Wall -DUSE_TCL -g sendtcp.c
gcc -c -O2 -Wall -DUSE_TCL -g cksum.c
gcc -c -O2 -Wall -DUSE_TCL -g statistics.c
gcc -c -O2 -Wall -DUSE_TCL -g version.c
gcc -c -O2 -Wall -DUSE_TCL -g listen.c
gcc -c -O2 -Wall -DUSE_TCL -g sendhcmp.c
gcc -c -O2 -Wall -DUSE_TCL -g rtt.c
gcc -c -O2 -Wall -DUSE_TCL -g relid.c
gcc -c -O2 -Wall -DUSE_TCL -g sendip_handler.c
gcc -c -O2 -Wall -DUSE_TCL -g libpcap_stuff.c
In file included from libpcap_stuff.c:20:0:
/usr/include/net/bpf.h:78:8: error: redefinition of ‘struct bpf_program’
struct bpf_program {
^
In file included from /usr/include/pcap/pcap.h:51:0,
from /usr/include/pcap.h:45,
from libpcap_stuff.c:19:
/usr/include/pcap/bpf.h:107:8: note: originally defined here
struct bpf_program {
^
In file included from libpcap_stuff.c:20:0:
/usr/include/net/bpf.h:258:8: error: redefinition of ‘struct bpf_insn’
struct bpf_insn {
^
In file included from /usr/include/pcap/pcap.h:51:0,
from /usr/include/pcap.h:45,
from libpcap_stuff.c:19:
/usr/include/pcap/bpf.h:109:9: note: originally defined here
struct bpf_insn bf_insns;
^
libpcap_stuff.c: In function ‘open_pcap’:
libpcap_stuff.c:26:6: warning: variable ‘on’ set but not used [-Wunused-but-set-variable]
int on;
^
libpcap_stuff.c: In function ‘pcap_recv’:
libpcap_stuff.c:61:19: warning: pointer targets in assignment differ in signedness [-Wpointer-sign]
p = (unsigned char) pcap_next(pcapfp, &hdr);
^
gmake: *** [libpcap_stuff.o] Error 1