i try to make it ,but reture error message: gcc -Wall -g -O2 globule.c -c In file included from globule.h:37, from globule.c:34: defs.h:43:18: error: pcap.h: No such file or directory In file included from globule.c:34: globule.h:115: error: expected specifier-qualifier-list before ‘pcap_t’ globule.h:199: error: expected ‘)’ before ‘*’ token globule.h:200: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘*’ token globule.c: In function ‘globule_deinit’: globule.c:64: error: ‘struct globals’ has no member named ‘wps’ globule.c:64: error: ‘struct globals’ has no member named ‘wps’ globule.c:65: error: ‘struct globals’ has no member named ‘handle’ globule.c:65: warning: implicit declaration of function ‘pcap_close’ globule.c:65: error: ‘struct globals’ has no member named ‘handle’ globule.c: At top level: globule.c:453: error: expected ‘)’ before ‘*’ token globule.c:457: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘*’ token globule.c: In function ‘set_wps’: globule.c:464: error: ‘struct globals’ has no member named ‘wps’ globule.c: In function ‘get_wps’: globule.c:468: error: ‘struct globals’ has no member named ‘wps’ make: *** [globule.o] Error 1