Fixing a CMake dependency issue for the pcap bifs.

ninja said:

    ninja: warning: multiple rules generate
    scripts/base/bif/const.bif.bro. builds involving this target will
    not be correct; continuing anyway [-w dupbuild=warn]

Looks like there's a larger problem here involving *.bif of the same
name at different locations of the source tree. For now, I'ved fixed
this one by merging src/iosource/pcap/{const,functions}.bif into
pcap.bif.

src/iosource/PktSrc.cc

@@ -11,7 +11,7 @@
 #include "Net.h"
 #include "Sessions.h"
 
-#include "pcap/const.bif.h"
+#include "pcap/pcap.bif.h"
 
 using namespace iosource;
 

src/iosource/pcap/CMakeLists.txt

@@ -5,6 +5,5 @@ include_directories(BEFORE ${CMAKE_CURRENT_SOURCE_DIR} ${CMAKE_CURRENT_BINARY_DI
 
 bro_plugin_begin(Bro Pcap)
 bro_plugin_cc(Source.cc Dumper.cc Plugin.cc)
-bif_target(functions.bif)
-bif_target(const.bif)
+bif_target(pcap.bif)
 bro_plugin_end()

src/iosource/pcap/Dumper.cc

@@ -7,7 +7,7 @@
 #include "../PktSrc.h"
 #include "../../Net.h"
 
-#include "const.bif.h"
+#include "pcap.bif.h"
 
 using namespace iosource::pcap;
 

src/iosource/pcap/Source.cc

@@ -7,7 +7,7 @@
 #include "Source.h"
 #include "iosource/Packet.h"
 
-#include "const.bif.h"
+#include "pcap.bif.h"
 
 #ifdef HAVE_PCAP_INT_H
 #include <pcap-int.h>

src/iosource/pcap/const.bif

@@ -1,4 +0,0 @@
-
-
-const Pcap::snaplen: count;
-const Pcap::bufsize: count;

src/iosource/pcap/pcap.bif

@@ -1,6 +1,9 @@
 
 module Pcap;
 
+const snaplen: count;
+const bufsize: count;
+
 ## Precompiles a PCAP filter and binds it to a given identifier.
 ##
 ## id: The PCAP identifier to reference the filter *s* later on.