argus: fix compile breakage

Add a patch that includes pcap.h instead of hardcoding an incorrect
prototype for a function provided by libpcap.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/argus/argus-3.0.0.rc.34-01-use-pcap-header.patch

@@ -0,0 +1,27 @@
+Instead of hardcoding a wrong prototype for a libcap function, include
+the correct header.
+
+Index: argus-3.0.0.rc.34/argus/ArgusSource.c
+===================================================================
+--- argus-3.0.0.rc.34.orig/argus/ArgusSource.c	2010-02-09 22:57:21.000000000 +0100
++++ argus-3.0.0.rc.34/argus/ArgusSource.c	2010-02-09 22:57:29.000000000 +0100
+@@ -53,6 +53,7 @@
+ #define PPP_HDRLEN      4       /* length of PPP header */
+ #endif
+ 
++#include <pcap.h>
+ 
+ void ArgusGetInterfaceStatus (struct ArgusSourceStruct *src);
+ 
+Index: argus-3.0.0.rc.34/argus/ArgusSource.h
+===================================================================
+--- argus-3.0.0.rc.34.orig/argus/ArgusSource.h	2010-02-09 22:57:35.000000000 +0100
++++ argus-3.0.0.rc.34/argus/ArgusSource.h	2010-02-09 22:57:54.000000000 +0100
+@@ -381,7 +381,6 @@
+ 
+ int ArgusCreatePktFromFddi(const struct fddi_header *, struct ether_header *, int);
+ 
+-extern char *bpf_image(struct bpf_insn *, int);
+ 
+ 
+ #else /* defined(ArgusSource) */