pcaprub : make it compilable under mingw on windows , need some more testing but it looks like it is running too, see issue #4554 for comment

git-svn-id: file:///home/svn/framework3/trunk@12770 4d416f70-5f16-0410-b530-b9f4589650da

external/pcaprub/extconf.rb

@@ -1,16 +1,10 @@
 require 'mkmf'
-
-if /i386-mswin32/ =~ RUBY_PLATFORM
-    pcap_dir        = with_config("pcap-dir", "C:\WpdPack")
-    pcap_includedir = with_config("pcap-includedir", pcap_dir + "\\include")
-    pcap_libdir     = with_config("pcap-libdir", pcap_dir + "\\lib")
-
-    $CFLAGS  = "-DWIN32 -I#{pcap_includedir}"
-    $LDFLAGS = "/link /LIBPATH:#{pcap_libdir}"
-    have_library("wpcap", "pcap_open_live")
+if /i386-mingw32/ =~ RUBY_PLATFORM
+	dir_config("pcap","C:/WpdPack/include","C:/WpdPack/lib")
+	have_library("wpcap", "pcap_open_live")
 	have_library("wpcap", "pcap_setnonblock")
 else
-    have_library("pcap", "pcap_open_live")
+	have_library("pcap", "pcap_open_live")
 	have_library("pcap", "pcap_setnonblock")
 end
 

external/pcaprub/pcaprub.c

@@ -10,9 +10,10 @@
 #if !defined(WIN32)
  #include <netinet/in.h>
  #include <arpa/inet.h>
+ #include <sys/time.h>
 #endif
 
-#include <sys/time.h>
+
 
 static VALUE rb_cPcap;
 
@@ -459,7 +460,11 @@ rbpcap_capture(VALUE self)
 
 	if(! rbpcap_ready(rbp)) return self; 
 	
+#if !defined(WIN32)
 	fno = pcap_get_selectable_fd(rbp->pd);
+#else
+	fno = pcap_fileno(rbp->pd);
+#endif
 
     for(;;) {
     	VALUE packet = rbpcap_next(self);